id stringlengths 12 12 | format stringclasses 2 values | title_ko stringlengths 0 811 โ | title_en stringlengths 0 1.26k โ | journal dict | authors listlengths 0 15 | abstract_ko stringlengths 0 4k โ | abstract_en stringclasses 100 values | keywords stringclasses 157 values | citation_count stringclasses 5 values | doi stringlengths 0 127 โ | url stringclasses 101 values | file_source stringlengths 23 23 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
ART001742021 | oai_dc | The Effects of Pavement Markings on High-risk DriversโSpeeds | The Effects of Pavement Markings on High-risk DriversโSpeeds | {
"journal_name": "ํ๊ตญ๋๋กํํ",
"publisher": null,
"pub_year": null,
"pub_month": null,
"volume": null,
"issue": null
} | [
"์ด์ข
ํ(ํ๊ตญ์ธ๊ตญ์ด๋ํ๊ต); ๋
ธ๊ด์ญ(ํ๊ตญ๊ฑด์ค๊ธฐ์ ์ฐ๊ตฌ์); ๊น์ข
๋ฏผ(ํ๊ตญ๊ฑด์ค๊ธฐ์ ์ฐ๊ตฌ์); ์ต์ฌ์ฑ(์์ธ์๋ฆฝ๋ํ๊ต)"
] | PURPOSES : Speeding is often the primary contributor to fatal crashes. Surprisingly, driving behaviors are indirectly affected by personal factors such as law-abidance, risk sensitivity, and situational adaptability. This research aims to verify the effectiveness of pavement markings at reducing the speeds of high-risk drivers. The purpose of this study is to establish how drivers (including law-abiding or law-breaking, high-risk or low-risk) react to different pavement markings in a driving simulator.
METHODS : The five different pavement markings were selected from markings used in other nations. The forty-two drivers were then surveyed, via questionnaires, and placed into the corresponding groups. Finally, statistical analysis was conducted to determine the extent of speed reduction for each pavement marking.
RESULTS : Higher speeds were linked to the high-risk drivers. Furthermore, after analysis of the mean difference of average speeds by pavement marking, it was determined that Dragonโs Teeth had the greatest speed reducing effect on these drivers.
CONCLUSIONS : Perceptual countermeasures are unlikely to strongly affect high-risk driversโ perception of speed on the curves. This statistically demonstrates that Dragonโs Teeth have a subtle effect on reducing speeds in the driving simulator. This studyโs significance lies in the improved understanding of high-risk drivers in terms of road facilities. It approaches the effects of various patterns of pavement markings for high-risk drivers. | ํ ๋ชฉ๊ณตํ | null | kci_detailed_000165.xml | |||
ART001742028 | oai_dc | ๋๋ก์์ค๋ฌผ ๊ด๋ฆฌ๋ฅผ ์ํ ๊ตํต์์ ํ์ง ์ธ์ ๋ฐ ์๋์์น ์ทจ๋ ๋ฐฉ๋ฒ ์ฐ๊ตฌ | The Road Traffic Sign Recognition and Automatic Positioning for Road Facility Management | {
"journal_name": "ํ๊ตญ๋๋กํํ",
"publisher": null,
"pub_year": null,
"pub_month": null,
"volume": null,
"issue": null
} | [
"์ด์ค์(ํ๊ตญ๊ฑด์ค๊ธฐ์ ์ฐ๊ตฌ์); ์ค๋๊ทผ(ํ๊ตญ๊ฑด์ค๊ธฐ์ ์ฐ๊ตฌ์)"
] | PURPOSES : This study is to develop a road traffic sign recognition and automatic positioning for road facility management.
METHODS : In this study, we installed the GPS, IMU, DMI, camera, laser sensor on the van and surveyed the car position, fore-sight image, point cloud of traffic signs. To insert automatic position of traffic sign, the automatic traffic sign recognition S/W developed and it can log the traffic sign type and approximate position, this study suggests a methodology to transform the laser point-cloud to the map coordinate system with the 3D axis rotation algorithm.
RESULTS : Result show that on a clear day, traffic sign recognition ratio is 92.98%, and on cloudy day recognition ratio is 80.58%. To insert exact traffic sign position. this study examined the point difference with the road surveying results. The result RMSE is 0.227m and average is 1.51m which is the GPS positioning error. Including these error we can insert the traffic sign position within 1.51m CONCLUSIONS : As a result of this study, we can automatically survey the traffic sign type, position data of the traffic sign position error and analysis the road safety, speed limit consistency, which can be used in traffic sign DB. | ํ ๋ชฉ๊ณตํ | null | kci_detailed_000165.xml | |||
ART001742026 | oai_dc | ๊ณ ์๋๋ก ํด๊ฒ์ ์ฐ๊ฒฐ๋ก ์ค๊ณ ๊ธฐ์ค ์ค์ ์ ๊ดํ ์ฐ๊ตฌ | A Development of the Design Guidelines for Connecting roads in Highway Rest Area | {
"journal_name": "ํ๊ตญ๋๋กํํ",
"publisher": null,
"pub_year": null,
"pub_month": null,
"volume": null,
"issue": null
} | [
"์ด์ฒ ์(ํ์๋ํ๊ต); ์์ ๋ฌด(ํ์๋ํ๊ต)"
] | PURPOSES : Design of approach roads of rest areas in highway has many drawbacks such as geometric design elements. There has been traffic accidents occured in these approach roads of rest areas. Thus, design criteria is required in order to protect accidents from being occurred. In case of Korea, geometric structure design criteria of entry facilities, such as toll-gate, interchange, junction etc was established. However there are no presence in a detailed standards for geometric structure of the rest area which affiliated road facilities.
METHODS : In this study, analytic on accidents was carried out in regards to the entry of geometric structure of resting areas by utilizing a sight survey and an investigation research of traffic accidents. The survey was targeting 135 general service areas. Collisions with physical channelization and safety facilities occurred due to speeding, rapid entry, and etc at the entrance nose section. At the entrance connector roads, accidents caused by speeding, negligence, over-operation of handle of drivers were main reason of accidents. Discriminant analysis were conducted about geometric elements to distinguish influencing factors for traffic accidents. the lengths and access angles of the entrance connector roads were regarded as to have the high relation with traffic accidents RESULTS : After classifying the design section of resting areas' entry as well as derive design elements on each section, a speed measurement by targeting entry of rest areas and car behavior surveys were performed, then each element's minimum standard was derived through the analyses. According to the speeds at the starting/end point of entrance connector road, the range of the junction setting angle of the entrance connector road is defined as 12ยฐ~ 17ยฐ and the connector length model was suggested.
CONCLUSIONS : Suggest improvement plans for existing rest areas that can be applied realistically. This should be corresponded to the standards of entry and exit of developed rest areas. | ํ ๋ชฉ๊ณตํ | null | kci_detailed_000165.xml | |||
ART001741989 | oai_dc | ์ฝํฌ๋ฆฌํธ ํฌ์ฅ์ฉ ๊ณ ๋ด๊ตฌ์ฑ ๋์ฒด ๋ค์ฐ๋ฐ์ ์ค๋ด๊ณต์ฉ์ฑ ํ๊ฐ | Laboratory Performance Evaluation of Alternative Dowel Bar for Jointed Concrete Pavements | {
"journal_name": "ํ๊ตญ๋๋กํํ",
"publisher": null,
"pub_year": null,
"pub_month": null,
"volume": null,
"issue": null
} | [
"๋ฐ์ฑํ(ํ๊ตญ๋๋ก๊ณต์ฌ); ๋ฐ์ค์(ํ๊ตญ๋๋ก๊ณต์ฌ); ์ด์ฌํ(ํ๊ตญ๋๋ก๊ณต์ฌ ๋๋ก๊ตํต๊ธฐ์ ์); ๊นํ๋ฐฐ(ํ๊ตญ๋๋ก๊ณต์ฌ)"
] | Purpose : The problem under this circumstance is that the erosion not only drops strength of the steel dowel bar but also comes with volume expansion of the steel dowel bar which can reduce load transferring efficiency of the steel dowel bar. To avoid this erosion problem, alternative dowers bars are developed.
Methods : In this study, the bearing stresses between the FRP tube dowel bar and concrete slab are calculated and compared with its allowable bearing stress to check its structural stability in the concrete pavement. These comparisons are conducted with several cross-sections of FRP tube dowel bars. Comprehensive laboratory tests including the shear load-deflection test on a full-scale specimen and the full-scale accelerated joint concrete pavement test are conducted and the results were compared with those from the steel dowel bar.
Results : In all cross-sections of FRP tube dowel bars, computed bearing stresses between the FRP tube dowel bar and concrete slab are less than their allowable stress levels. The pultrusion FRP-tube dowel bar show better performance on direct shear tests on full-scale specimen and static compression tests at full-scale concrete pavement joints than prepreg and filament-winding FRP-tube dowel bar.
Conclusion : The FRP tube dowel bars as alternative dowel bar are invulnerable to erosion that may be caused by moisture from masonry joint or bottom of the pavement system. Also, the pultrusion FRP-tube dowel bar performed very well on the laboratory evaluation. | ํ ๋ชฉ๊ณตํ | null | kci_detailed_000165.xml | |||
ART001741990 | oai_dc | ๋จ๋ถํ ๋๋ก๊ต ์ค๊ณํธ๋ญํ์ค ๋ถ์ | Study on Design Vehicle Loads of South and North Korean Highway Bridges | {
"journal_name": "ํ๊ตญ๋๋กํํ",
"publisher": null,
"pub_year": null,
"pub_month": null,
"volume": null,
"issue": null
} | [
"ํ์์(์ฑ๊ท ๊ด๋ํ๊ต); ์ด์ธ๊ทผ(์์ธ์๋ฆฝ๋ ํ ๋ชฉ๊ณตํ๊ณผ); ๋ฐ์ ๊ท(์ฑ๊ท ๊ด๋ํ๊ต)"
] | PURPOSES : This study is to analyze different vehicle load effects for a bridge design of South and North Korea in order to prepare a common design specification and to secure the safety of transportation when the highway bridges of South and North Korea use together.
METHODS : Based on the literature review, this study considers vehicle load effects by comparing different characteristics of the standard vehicle and other differences of the bridge design specification between South and North Korea. And structural modeling of three-span continuous PSC Beam Bridge are analyzed and the bridge capacity according different vehicle loads of South and North Korea is evaluated.
RESULTS : The result of this study indicates that the bridge capacity and the design vehicle weight of North Korea are smaller than the bridge capacity and the design vehicle weight of South Korea. Also this study demonstrates that the design vehicle array and other characteristics of North Korea are very different than the design vehicle array and other characteristics of South Korea.
CONCLUSIONS : It is expected that the outcomes of this study can be useful in the set-up of South-North Bridge Specification because similar previous studies are rarely found. | ํ ๋ชฉ๊ณตํ | null | kci_detailed_000165.xml | |||
ART001741997 | oai_dc | ์์คํํธ ๋๋กํฌ์ฅ์ ๋ฌผ์ํ ํ์ดํ ์์คํ
์ ์ด์ฉํ ํ๋ฉด์จ๋์ ๊ฐ์ ๊ดํ ์ฐ๊ตฌ | A Study of the Surface Temperature ReductionUsing Pipe Cooling System in Asphalt Pavement | {
"journal_name": "ํ๊ตญ๋๋กํํ",
"publisher": null,
"pub_year": null,
"pub_month": null,
"volume": null,
"issue": null
} | [
"์ค์ฉ๊ท(๊ฒฝํฌ๋ํ๊ต); ๋ฐ๊ฒฝ์(U.S Army corps of engineers); ์ด์๊ทผ(๊ฒฝํฌ๋ํ๊ต)"
] | PURPOSES : The purpose of asphalt pavement reducing surface temperature by using Pipe cooling system is to make pleasant city life environment.
METHODS : We considered building condition to lay the pipes under asphalt pavement and figured out that temperature reducing effect with pipe cooling system. In addition, we guessed rutting through wheel tracking test with a laid the pipes under asphalt mixture and performed fatigue cracking through a flexural fatigue test for performance evaluation of pipe cooling system.
RESULTS : When pipe cooling system worked, the temperature of pavement model reduced quickly in test. The system can turn down the degree by 4 or 5 quickly as well. It didn't affect rutting to lay the pipes under the pavement, but it can get damaged to asphalt pavement in early stage by the result of performance evaluation.
CONCLUSIONS : We figured out that pipe cooling system can turn down the temperature of aspalt pavement surface through tests. We suggest that pipe cooling system should be considered one of the effective way to solve urban heat island problem. | ํ ๋ชฉ๊ณตํ | null | kci_detailed_000165.xml | |||
ART001742000 | oai_dc | ํฌ์ฅ๊ฐ์ฑ์ ๊ณ ๋ คํ ์ฝํฌ๋ฆฌํธ ํฌ์ฅํ๋ถ ๊ณต๋์ ๋ฌด ํ๊ฐ๋ฐฉ๋ฒ | A Method for Evaluation of Hollow Existence in Sublayers of Concrete Pavement Considering Pavement Stiffness | {
"journal_name": "ํ๊ตญ๋๋กํํ",
"publisher": null,
"pub_year": null,
"pub_month": null,
"volume": null,
"issue": null
} | [
"์๋์(ํ๊ตญ๋๋ก๊ณต์ฌ); ์ ์งํ(์ธํ๋ํ๊ต); ์ด์ฌํ(ํ๊ตญ๋๋ก๊ณต์ฌ ๋๋ก๊ตํต๊ธฐ์ ์); ์ ํธ์ฑ(์ธํ๋ํ๊ต); ๋ฐ์ฃผ์(์ธํ๋ํ๊ต)"
] | PURPOSES : The existing method evaluating the existence of the hollows in concrete pavement does not consider the stiffness of pavement. In addition, the method uses unreasonable logic judging the hollow existence by the deflection caused by zero loading. In this study, the deflection of slab corner due to heavy weight deflectometer (HWD) was measured in concrete pavement sections where underground structures are located causing the hollows around them.
METHODS : The modulus of subgrade reaction obtained by comparing the actual deflection of slab to the result of finite element analysis was calibrated into the composite modulus of subgrade reaction. The radius of relative stiffness was calculated, and the relationship between the ratio of HWD load to the radius of relative stiffness and the slab deflection was expressed as the curve of secondary degree.
RESULTS : The trends of the model coefficients showing width and maximum value of the curve of secondary degree were analyzed by categorizing the pavement sections into three groups : hollows exist, additional investigation is necessary, and hollows do not exist.
CONCLUSIONS : The results analyzed by the method developed in this study was compared to the results analyzed by existing method. The model developed in this study will be verified by analyzing the data obtained in other sections with different pavement structure and materials. | ํ ๋ชฉ๊ณตํ | null | kci_detailed_000165.xml | |||
ART001742002 | oai_dc | ์คํ์ค ์ํ๊ณผ ์ ํ์์ํด์์ ํตํ ๊ฐ์ํ ๊ต๋ฉดํฌ์ฅ์ ๊ฑฐ๋๋ถ์ ์ฐ๊ตฌ | An Evaluation of Orthotropic Steel Bridge Deck Pavement Behavior Using Wheel Load Testing and 3D Finite Element Analysis | {
"journal_name": "ํ๊ตญ๋๋กํํ",
"publisher": null,
"pub_year": null,
"pub_month": null,
"volume": null,
"issue": null
} | [
"๊นํ์ฐ(ํ๊ตญ๊ฑด์ค๊ธฐ์ ์ฐ๊ตฌ์); ์ต์ง์(ํ๊ตญ๊ฑด์ค๊ธฐ์ ์ฐ๊ตฌ์); ์ดํ์ข
(์ธ์ข
๋ํ๊ต); ๋ฐฑ์ข
์(์ธ์ข
๋ํ๊ต); ์๋ณ์(ํ๊ตญ๊ฑด์ค๊ธฐ์ ์ฐ๊ตฌ์)"
] | PURPOSES : The objective of this study is to analyze and evaluate the behavior of orthotropic steel bridge deck pavement using three-dimensional finite element analysis and full-scale wheel load testing.
METHODS : Since the layer thickness and material properties used in the bridge deck pavement are different from its condition, it is very difficult to measure and access the behavior of bridge deck pavement in the field. To solve this problem, the full-scale wheel load testing was conducted on the PSMA/Mastic bridge deck pavement and the deflection of bridge deck and horizontal tensile strain on top of pavement were measured under the loading condition. Three-dimensional finite element analysis was conducted to predict the behavior of bridge deck pavement and the predicted deflection and tensile strain values are compared with measured values from the wheel loading testing.
RESULTS : Test results showed that the predicted deflections are 10% lower than measured ones and the error between predicted and measured horizonal tensile strain values is less than 2% in the critical location.
CONCLUSIONS : The fact indicates that the proposed the analysis is found to be accurate for estimating the behavior of bridge deck pavements. | ํ ๋ชฉ๊ณตํ | null | kci_detailed_000165.xml | |||
ART001742004 | oai_dc | ์ฌ์ ยท์ฌํ ๋น๊ต๋ถ์์ ํตํ ํ์ ๊ต์ฐจ๋ก ๋์
ํจ๊ณผ๋ถ์ | An Analysis of Roundabout Application Effects Based on Before and After Field Studies | {
"journal_name": "ํ๊ตญ๋๋กํํ",
"publisher": null,
"pub_year": null,
"pub_month": null,
"volume": null,
"issue": null
} | [
"์ด๋๋ฏผ(์์ธ์๋ฆฝ๋ํ๊ต); ์ ์ ํธ(ํ๊ตญ๊ตํต์ฐ๊ตฌ์); ๊น๋ํ(ํ๊ตญ๊ตํต์ฐ๊ตฌ์); ์ด์๊ธฐ(ํ๊ตญ๊ฑด์ค๊ธฐ์ ์ฐ๊ตฌ์)"
] | PURPOSES : Though the situation that the roundabouts are actively constructed, researches on the effect of the roundabouts focus mainly on the analysis of the expected effects of using only traffic simulation on the operation. Considering such problems, this study is conducted to analyze the effects of the various aspects based on field observation studies.
METHODS : This study evaluated and analyzed the effects from the aspects of traffic operation, traffic safety, and traffic behavior by performing field observation studies with six roundabouts with/without signal controls on the pilot project areas for the roundabouts installed in 2010.
RESULTS : Through the study results, it was found that the average travel time decreases by 14.7% and 2.4% on the signalized intersections and unsignalized intersections, respectively. The average travel speed increases by 9.7 and 5.8km/h on the roundabouts with/without signal lights. Regarding traffic safety, the speed deviation among individual vehicles decreases by approximately 18.4 to 32.7km/h, thus confirming the safety effects. As the decrease of the number of conflicts, it might be explained that car crashes and collision with pedestrians decreased by 62.2% and 66.7%. Also the result shows that the lowest point of speed in roundabouts appears near the yield line on the entry area on the roundabouts. When passing through the roundabouts, vehicles enter at a speed of 20-30km/h, which is the design speed of the circulatory lane and drive out the roundabout with a higher speed than the entry speed.
CONCLUSIONS : When a roundabout is introduced at the intersections below certain traffic volume there are effects of traffic operation, traffic safety, and traffic behavior. | ํ ๋ชฉ๊ณตํ | null | kci_detailed_000165.xml | |||
ART001741993 | oai_dc | ๊ตญ๋ด ํ์ฅ๊ฐ์ด์ฌ์์์คํํธ ์๊ณต ํผํฉ๋ฌผ ์ํํ๊ฐ | A Case Study of Hot In-Place Recycling Asphalt Mixture in Korea | {
"journal_name": "ํ๊ตญ๋๋กํํ",
"publisher": null,
"pub_year": null,
"pub_month": null,
"volume": null,
"issue": null
} | [
"๊ถ์์(ํ๊ตญ๊ฑด์ค๊ธฐ์ ์ฐ๊ตฌ์); ์ด์ฌ์ค(์ ๋ถ๋ํ๊ต); ์์ฑ๋ฆฐ(ํ๊ตญ๊ฑด์ค๊ธฐ์ ์ฐ๊ตฌ์); ํ์ฌ์ฒญ(ํ๊ตญ๊ฑด์ค๊ธฐ์ ์ฐ๊ตฌ์); ์์ฌ๊ท(ยทํ๊ตญ๊ฑด์ค๊ธฐ์ ์ฐ๊ตฌ์)"
] | PURPOSES: This study is to investigate the Hot In-Place recycling asphalt mixture in Korea using field produced materials.
METHODS: Hot In-Place reclaimed asphalt mixture was investigated to evaluate the mixture properties based on various test results such as Marshall Test, Indirect Tensile Test, TSR, and Wheel Tracking Test. These test values were compared with domestic standard specification.
RESULTS : The result of the laboratory experiment indicates that the Hot In-Place Reclaimed(HIR) asphalt mixture produced at the field constrution site was satisfied all of the test criteria such as Indirect tensile test, Marshall and TSR test, and wheel tracking test. During the test, the research team found that current HIR system is required an extention of mixing time to improve quality and to reduce variation of sample to sample. Although the current HIR mixture was passed the test criteria, there is a potential capability to enhance the mixture properties as extend mixting time.
CONCLUSIONS : Based on these laboratory test results, It would be concluded that domestic HIR mixtureใs properties were satisfied all standard specification related with evaluation of recycling asphalt mixtures. Based on this case study result, there is a chance to save construction cost and increase the usage of reclaimed asphalt concrete in the future. | ํ ๋ชฉ๊ณตํ | null | kci_detailed_000165.xml | |||
ART001742032 | oai_dc | VMS ํ์ถํํ๋ณ ์ด์ ์ ์ฃผ์์๊ฐ ํน์ฑ์ ๊ดํ ์ฐ๊ตฌ | A Study on Characteristics of Driverโs Visual Time-varying on the Message Disply Form | {
"journal_name": "ํ๊ตญ๋๋กํํ",
"publisher": null,
"pub_year": null,
"pub_month": null,
"volume": null,
"issue": null
} | [
"๊น๋ช
์(ํ๋ฐญ๋ํ๊ต)"
] | PURPOSE : The urban traffic problems can be defined as general problems for smooth traffic flow including maintenance of mass transportation system according to suddenly increased population, traffic regulations for vehicles and pollution problem. As a method for solving traffic jams, one of the traffic problems of late, interest in Intelligent Traffic System(ITS) is increasing sharply, which is a system managing traffic demand by providing passers with information on traffic state of path and road conditions before they pass the road through ATIS, a field of ITS.
METHODS : Variable message signs(VMS) is used on the roads as a method for providing information to promote smooth traffic flow and safety and prevent traffic accidents in advance by providing drivers with various information while driving.
RESULTS : Recently, as ITS industry has been vitalized and technical factors of VMS have developed, various kinds of information is provided but the effect of VMS has not been maximized due to its limited type.
CONCLUSION : Therefore, this study intends to provide methods for effective information transfer by analyzing driver's visual behavior characteristics for VMS and presenting a basis for maximizing VMS effect after considering read by expression type. | ํ ๋ชฉ๊ณตํ | null | kci_detailed_000165.xml | |||
ART001741991 | oai_dc | ๋๋ก ํฌ์ฅ์ฒด์์ ๋์์ ๋ํ ์งํ์์ ์ํฅ ํ๊ฐ | Evaluation of Ground Water Level Effect on Frost Heaving in Road Pavements | {
"journal_name": "ํ๊ตญ๋๋กํํ",
"publisher": null,
"pub_year": null,
"pub_month": null,
"volume": null,
"issue": null
} | [
"๊ถ๊ธฐ์ฒ (๋์๋ํ๊ต); ์ด์ฌํ(๋์๋ํ๊ต)"
] | PURPOSES : This study is to evaluate a ground water level effect on frost heaving in road pavements METHODS : The effects of water table on frost heaving in pavement systems were evaluated from the mechanical analysis using FROST program. The input parameters and boundary conditions were determined by considering climates, pavement sections, and material properties specially subgrade soil types in Korea.
RESULTS : When the water table located above the freezing depth, amount of frost heaving caused by freezing the water in pavement itself was big enough to damage in pavement system, although pavement system consists of fully non-frost-susceptible materials with sufficient thickness of anti-freezing layer. The amount of frost heaving was decreased rapidly with increasing the distance between the water table and freezing depth.
CONCLUSIONS : It was concluded that there is no engineering problems related with frost heaving in practical sense when the distance between freezing depth and water table is over 1.5m for having subgrade soils less than 50% of #200 sieve passing to meet specification on quality control in Korea. | ํ ๋ชฉ๊ณตํ | null | kci_detailed_000165.xml | |||
ART001742017 | oai_dc | ๋๋ก์ ํ ์ค๊ณ์ผ๊ด์ฑ ํตํฉํ๊ฐ๋ฐฉ๋ฒ๋ก ์ ํ์ฉํ ์์ ์ฑ ํ๊ฐ | Road Safety Assessment by Using Integrated Evaluation Methods of Road Design Consistency | {
"journal_name": "ํ๊ตญ๋๋กํํ",
"publisher": null,
"pub_year": null,
"pub_month": null,
"volume": null,
"issue": null
} | [
"๊ณ ์ถ์(์์ธ์๋ฆฝ๋ํ๊ต); ์ด์ข
ํ(ํ๊ตญ์ธ๊ตญ์ด๋ํ๊ต); ๊ตฌ์ง์ (์์ธ์์ฒญ); ๋
ธ๊ด์ญ(ํ๊ตญ๊ฑด์ค๊ธฐ์ ์ฐ๊ตฌ์)"
] | PURPOSES : Road Design Consistency Evaluation can guarantee road alignments with safety factors, however it can be hard work to deal with general car accident factors in only this evaluation index. Ideal Road Design Consistency Evaluation is show the mutual balance of road alignment and human factors with a variety of factors for road safety.
METHODS : This study carried out overall road safety evaluations which are methods of running speeding consistency and car platoon safety analysis (driver's behaviors factors) as well.
RESULTS : Out of 13 sections in a experimental road layout, safety factors of 8 sections showed 'Good' or 'Fair' status. However, 'Poor' results were found out in 5 sections. Particularly, it showed the different outcomes among the 4 evaluation methods used in this study.
CONCLUSIONS : Road safety countermeasures were proposed for the potentially dangerous sections in road which failed to identify in the other methods. This study will contribute toward future study of more reliable Road Design Consistency Evaluation in the future for road safety. | ํ ๋ชฉ๊ณตํ | null | kci_detailed_000165.xml | |||
ART001741995 | oai_dc | ์ถฉ๊ฒฉํก์ ์ธ์ดํํฐ๋กค๋ฌ ๊ฐ๋๋ ์ผ์ ํ์น์ ์ํ๋ ํด์ | Occupant Risk Analysis of Safety Roller Guardrail with Energy Absorption Capability | {
"journal_name": "ํ๊ตญ๋๋กํํ",
"publisher": null,
"pub_year": null,
"pub_month": null,
"volume": null,
"issue": null
} | [
"์ด๋์ฐ(์๋จ๋ํ๊ต); ์ฐ๊ด์ฑ(์๋จ๋ํ๊ต); ์ฑ์ข
์ ((์ฃผ)๊ธ์ฑ์ฐ์
)"
] | PURPOSES : This paper presents the results of computer simulations of roadside safety barrier, called by safety roller guardrail, consisting of rotational roller, rotation control plate, post and subsidiary members. The rotation roller and rotation control plate are made by EVA(ethylene vinyl acetate), and PE(polyester), respectively. The occupant risk analysis has been carried out under vehicle crash condition for high containment level of SB-4 for the purpose of local road. Simulations are performed with the finite element code LS/DYNA-3D.
CONCLUSIONS : It is noted that not only impact severity is drastically reduced but also vehicle trajectory is improved due to the characteristics of energy absorption and rotation pattern of EVA rollers connected by control plates. | ํ ๋ชฉ๊ณตํ | null | kci_detailed_000165.xml | |||
ART001741998 | oai_dc | ๋์ ๋จ ๋ง์คํฐ๊ณก์ ์ ์ด์ฉํ ์์คํํธ ๋ฐ์ธ๋์ ๋
ธํ ํน์ฑ ํ๊ฐ | Characteristics of Dynamic Shear Modulus Mastercurve of Aged or Unaged Asphalt Binders | {
"journal_name": "ํ๊ตญ๋๋กํํ",
"publisher": null,
"pub_year": null,
"pub_month": null,
"volume": null,
"issue": null
} | [
"์คํ์(ํ๊ตญ๊ฑด์ค๊ธฐ์ ์ฐ๊ตฌ์); ํจ์๋ฏผ(ํ๊ตญ๊ฑด์ค๊ธฐ์ ์ฐ๊ตฌ์); ์ ํ์ค(ํ๊ตญ๊ฑด์ค๊ธฐ์ ์ฐ๊ตฌ์)"
] | PURPOSES: To characterize the aging effect on asphalt binder, dynamic shear modulus mastercurve of two typical asphalt binders are developed.
METHODS: To develop dynamic shear modulus mastercurve, dynamic shear modulus at high temperature and creep stiffness at low temperature are measured by temperature sweep test and bending beam rheometer test, respectively.
RESULTS: It is observed that the aging effect on asphalt binder can be clearly observed from dynamic shear modulus mastercurve and the mastercurve can be utilized to predict behavior of asphalt binder at wide range of temperature CONCLUSIONS: It is confirmed that SBS 5% modified binder has more desirable mechanical property at low and high temperature as a pavement material comparing to PG64-22 binder and the mastercurve is an effective tool to evaluate the property of asphalt binder. | ํ ๋ชฉ๊ณตํ | null | kci_detailed_000165.xml | |||
ART001742023 | oai_dc | ๋์ค๊ตํต HUD ์ฝํ
์ธ ์ฐ์ ์์ ๊ฒฐ์ ์ ๊ดํ ์ฐ๊ตฌ | The Decision of Order Priority of HUD Contents for Public Transit | {
"journal_name": "ํ๊ตญ๋๋กํํ",
"publisher": null,
"pub_year": null,
"pub_month": null,
"volume": null,
"issue": null
} | [
"๋ฐ๋ฒ์ง(ํ๊ตญ๊ฑด์ค๊ธฐ์ ์ฐ๊ตฌ์); ๊ฐ์์(ํ๊ตญ๊ฑด์ค๊ธฐ์ ์ฐ๊ตฌ์); ๊นํํ(ํ๊ตญ๊ฑด์ค๊ธฐ์ ์ฐ๊ตฌ์)"
] | PURPOSES : In this study, as part of an effort to develop HUD for public transit, it is proposed that the decision of order priority of contents which will be disposed to bus drivers through HUD for public transit using AHP(Analytic Hierarchy Process) technique.
METHODS : In AHP analysis method brainstorming, factor analysis, hierarchical structuring, and weighting analysis were performed by applying classical analysis method.
RESULTS : By the result of analysis it is shown that unlike car drivers, bus drivers prefer information related to bus intervals, bus stop, and door open and close to information related to vehicle running. Also, bus stop information and bus interval information were ranked as first and second place in order priority of HUD contents for public transit by experts.
CONCLUSIONS : This method of selecting order priority of HUD contents for public transit can provide a basic foundation for selecting order priority of traffic information contents as well as other HUD contents. | ํ ๋ชฉ๊ณตํ | null | kci_detailed_000165.xml | |||
ART001741987 | oai_dc | ์ฅ๊ฒฝ๊ฐ ๊ฐ๋ฐ๋ฅํ ์ผ์ด๋ธ๊ต๋์ ์ ์ฉํ๊ธฐ ์ํ ํด๋ฆฌ์ฐ๋ ํ ํด๋ฆฌ๋จธ์ฝํฌ๋ฆฌํธ์ ๊ณต์ฉํน์ฑ ์ฐ๊ตฌ | A Study to Evaluate Performance of Poly-Urethane Polymer Concrete for Long-Span Orthotropic Steel Bridge | {
"journal_name": "ํ๊ตญ๋๋กํํ",
"publisher": null,
"pub_year": null,
"pub_month": null,
"volume": null,
"issue": null
} | [
"๋ฐํฌ์(๋ก๋์ฝ๋ฆฌ์); ์ด์ ํ(๋ก๋์ฝ๋ฆฌ์); ๊ณฝ๋ณ์(๋ก๋์ฝ๋ฆฌ์); ์ต์ดํ(๋ก๋์ฝ๋ฆฌ์); ๊นํ์ฐ(์ธ์ข
๋ํ๊ต)"
] | PURPOSES: The purpose of this study is to evaluate physical properties, durability, fatigue resistance, and long-term performance of polyurethane concrete (PU) which can be possible application of thin layer on long-span orthotropic steel bridge and to check structural stability of bridge structure.
METHODS : Various tests of physical properties, such as flexural strength, tensile strength, bond strength and coefficient of thermal expansion tests were conducted for physical property evaluation using two types of poly urethane concrete which have different curing time.
Freezing and thawing test, accelerated weathering test and chloride ion penetration test were performed to evaluate the effect of exposed to marine environment. Beam fatigue test and small scale accelerated pavement test were performed to assess the resistance of PU against fatigue damage and long-term performance. Structural analysis were conducted to figure out structural stability of bridge structure and thin bridge deck pavement system.
RESULTS: The property tests results showed that similar results were observed overall however the flexural strength of PUa was higher than those of PUb. It was also found that PU materials showed durability at marine environment. Beam fatigue test results showed that the resistances of the PUa against fatigue damage were two times higher than those of the PUb. It was found form small scale accelerated pavement test to evaluate long-term performance that there is no distress observed after 800,000 load applications. Structural analysis to figure out structural stability of bridge structure and thin bridge deck pavement system indicated that bridge structures were needed to increase thickness of steel deck plate or to improve longitudinal rib shape.
CONCLUSIONS: It has been known that the use of PU can be positively considered to thin layer on long-span orthotropic steel bridge in terms of properties considered marine environment, resistance of fatigue damage and long-term performance. | ํ ๋ชฉ๊ณตํ | null | kci_detailed_000165.xml | |||
ART001741988 | oai_dc | ๋๋ก ๊ธฐ์ธต ์ฌ๋ฃ๋ก ํ์ฉํ๊ธฐ ์ํ ์ฌ์ ๋ณด๊ฐ ๋น๋ฐฐํฉ ์ฝํฌ๋ฆฌํธ์ ํ๋ผ์ด์ ์์ ๋ฆฌ์ ํธ์ ์๋ฅผ ์ฌ์ฉํ ๊ฒฝ์ฐ ์ญํ์ ํน์ฑ ๋ฐ ์ฌ์ ๋ถ์ฐ์ฑ ๋ถ์ | Evaluation of Mechanical Properties and Fiber Dispersing Characteristics of Fiber Reinforced Lean Concrete Using Fly Ash and Reject Ash | {
"journal_name": "ํ๊ตญ๋๋กํํ",
"publisher": null,
"pub_year": null,
"pub_month": null,
"volume": null,
"issue": null
} | [
"์ฅ์์ฌ(๊ฐ์๋ํ๊ต); ๋ฐ์ฒ ์ฐ(๊ฐ์๋ํ๊ต); ๋ฐ์ํ(ํ๊ตญ๊ฑด์ค๊ธฐ์ ์ฐ๊ตฌ์); ์ ํ์ค(ํ๊ตญ๊ฑด์ค๊ธฐ์ ์ฐ๊ตฌ์); ์ ์ฐํ(ํ๊ตญ๊ฑด์ค๊ธฐ์ ์ฐ๊ตฌ์); ๊น์ฉ์ฌ(ํ์๋ํ๊ต)"
] | PURPOSES: As pavement generally provides service shorter than an expected life cycle, maintenance cost increases gradually. In order to help extending the service life and reduce maintenance cost, a new multi-functional composite pavement system is being developed in Korea.
METHODS: This study is a part to develop the multi-functional composite pavement and is to investigate the mechanical performances of fiber-reinforced lean concrete for pavement subbase. The inherent problem of fiber reinforced concrete is dispersion of fibers in concrete mix.
This study additionally evaluated fiber dispersion characteristics with respect to different fiber types.
RESULTS : From the test results, the compressive strengths of the concretes satisfied the required limit of 5MPa at 7days. The standard deviation of the measured number of fibers were lower in the order of nylon, steel fiber and polypropylene.
CONCLUSIONS : Reject ash was shown to be satisfactory as a replacement material to Portland cement in lean concrete base. The fiber volume fraction is suggested to be 0.4% even though the fracture toughness did not vary significantly with respect to fiber types. However, fracture energy absorbed up to complete failure increased with the increased fiber volume fraction increment. | ํ ๋ชฉ๊ณตํ | null | kci_detailed_000165.xml | |||
ART001826305 | oai_dc | ์ ๊ธฐ์ ํญ์ ๋ณํ๋ฅ ๊ฒ์ด์ง๋ฅผ ์ด์ฉํ ์ฝํฌ๋ฆฌํธ์ ์ดํฝ์ฐฝ๊ณ์ ์ธก์ ๋ฒ | Coefficient of Thermal Expansion Measurement of Concrete using Electrical Resistance Strain Gauge | {
"journal_name": "ํ๊ตญ๋๋กํํ",
"publisher": null,
"pub_year": null,
"pub_month": null,
"volume": null,
"issue": null
} | [
"๋จ์ ํฌ(ํ๊ตญ๊ฑด์ค๊ธฐ์ ์ฐ๊ตฌ์); ์๋์(ํ๊ตญ๊ฑด์ค๊ธฐ์ ์ฐ๊ตฌ์); ๊น์ฐ๋ณต(ํ๊ตญ๊ฑด์ค๊ธฐ์ ์ฐ๊ตฌ์)"
] | PURPOSES: The purpose of this study is to provide the method of how to measure the coefficient of thermal expansion of concrete using temperature compensation principle of electrical resistance strain gauge.
METHODS : The gauge factor compensation method and thermal output(temperature-induced apparent strain) correction method of selftemperature compensation gauge were investigated. From the literature review, coefficient of thermal expansion measurement method based on the thermal output differential comparison between reference material(invar) and unknown material(concrete) was suggested.
RESULTS: Thermal output is caused by two reasons; first the electrical resistivity of the grid conductor is changed by temperature variation and the second contribution is due to the differential thermal expansion between gauge and the test material. Invar was selected as a reference material and itใs coefficient of thermal expansion was measured as 2.12ร10-6m/m/โ. by KS M ISO 11359-2. The reliability of the suggested measurement method was evaluated by the thermal output measurement of invar and mild steel. Finally coefficient of thermal expansion of concrete material for pavement was successfully measured as 15.45ร10-6m/m/โ.
CONCLUSIONS: The coefficient of thermal expansion measurement method using thermal output differential between invar and unknown concrete material was evaluated by theoretical and experimental aspects. Based on the test results, the proposed method is considered to be reasonable to apply for coefficient of thermal expansion measurement. | ํ ๋ชฉ๊ณตํ | null | kci_detailed_000165.xml | |||
ART001826306 | oai_dc | ๊ฐ์ ๋ ๋ผ๋ธ์คํธ๋ฆฝ์ ํ์ฅ์ ์ฉ์ ๋ฐ๋ฅธ ์ฌํ ์์ํน์ฑ ํ๊ฐ | Evaluation on Noise Characteristics by Field Application of Improved Rumble Strip | {
"journal_name": "ํ๊ตญ๋๋กํํ",
"publisher": null,
"pub_year": null,
"pub_month": null,
"volume": null,
"issue": null
} | [
"์๋์(ํ๊ตญ๊ฑด์ค๊ธฐ์ ์ฐ๊ตฌ์); ์์์ฐฌ(ํ์๋ํ๊ต); ์ํ์ฅ(ํ๊ตญ๊ฑด์ค๊ธฐ์ ์ฐ๊ตฌ์); ์ด์ฌ์ค(์ ๋ถ๋ํ๊ต); ์๋ณ์(ํ๊ตญ๊ฑด์ค๊ธฐ์ ์ฐ๊ตฌ์)"
] | PURPOSES: This research investigates traffic noise characteristics as change the transverse rumble strips shape from rectangular to cylinder at toll plaza of highway.
METHODS : The traffic noise was investigated at two different places at toll plaza of highway. One is modified grooving, another is employed cylinder shape of TRS instead of rectangular shape of TRS. A measurement of traffic noise was conducted at same location and time period. The traffic volume information was gotten from office of highway office and vehicle speed was measured by speed measuring device.
The traffic noise measurement was conducted from 13:00 to 23:00 and by pass-by method. Also, the traffic noise was measured behind noise barrier. Various distance from noise barrier(7.5m, 30m, 50m) and different heights(1.2m, 3m, and 5m) were parameter for measurement of traffic noise in this study.
RESULTS : The class 1 vehicle was contributed from traffic volume which was increased 1,500. However, the distribution of traffic speed didnโt change compare to previous investigated period. From this study, It was found that the external traffic noise was changed as function of geometric shape of TRS. The external noise from modified grooving was less than 1.2dB(A) of the current TRS. A difference of traffic noise was 20dB(A) before and after barrier. It came from a noise barrier effect as reduction of traffic noise. According to investigate a traffic noise distribution near barrier, there is similar noise characteristic as function of height at 7.5m distance from noise barrier. Also, There is no different traffic noise between 30m and 50m from source of the noise of sound barrier.
CONCLUSIONS: Based on this traffic noise investigation result, there is a clear characteristic difference as changed TRS shape. The traffic noise was reduced by changed TRS shape. Specially, traffic noise was decreased although the traffic volume was increase for same investigation time and period. It is implied that cylinder type of TRS significantly reduces the traffic noise. The specification of various TRS will be studied in the future. | ํ ๋ชฉ๊ณตํ | null | kci_detailed_000165.xml | |||
ART001826308 | oai_dc | ์ธ์ฒ๊ตญ์ ๊ณตํญ ์์คํํธ ํฌ์ฅ ๋ณด์์๊ธฐ ๊ฒฐ์ ์ฌ๋ก ์ฐ๊ตฌ | Case Study on Deciding a Time for Repairing Asphalt Pavement of Incheon International Airport | {
"journal_name": "ํ๊ตญ๋๋กํํ",
"publisher": null,
"pub_year": null,
"pub_month": null,
"volume": null,
"issue": null
} | [
"์ด์ฌํธ(์ธ์ฒ๊ตญ์ ๊ณตํญ๊ณต์ฌ ๊ฑด์ค์ฌ์
์ฒ); ๊น์ฅ๋ฝ((์ฃผ)๋ก๋ํ
); ๋ฌธํ์ฒ (๋ก๋ํ
); ์กฐ๋จํ(์ธ์ฒ๊ตญ์ ๊ณตํญ๊ณต์ฌ)"
] | PURPOSES : The evaluation of the pavement condition of the asphalt concrete pavement of No. 2 runway of Inchon International Airport through PMS, a supporting system for making a decision of pavement, maintenance and repair, was made, and the proper time for repair according to the PCI reduction rate was suggested.
METHODS: By comparing and analyzing the evaluation results of pavements built in 2009, 2010, 2011, PCI change in each facility (No. 2 runway, C parallel taxiway, connection taxiway) was calculated. By applying the calculated change to PCI deduction rate model, the pavement condition of the target sections was estimated, and then the necessary section and time for repair were chosen.
RESULTS: After careful consideration of the time for pavement and maintenance, based on the result of PCI prediction, it was estimated that the southern takeoff and landing section of No. 2 runway was required to be repaired in 2012; connection taxiway in 2013; and C parallel taxiway in 2014; however, the section which is the main moving route of connection taxiway and C parallel taxiway was needed to be repaired in 2012.
CONCLUSIONS: For maintenance and repair of airport pavements, the optimal alternative should be chosen by considering economics and operability, via examining the time for repair and the aspect of management all together on the basis of this study. | ํ ๋ชฉ๊ณตํ | null | kci_detailed_000165.xml | |||
ART001826319 | oai_dc | ์ฐจ๋ก๋ฐฐ์ ์ต์ ํ๋ฅผ ๊ณ ๋ คํ ์ ํธ๊ต์ฐจ๋ก ์ด์๋ฐฉ์์ ๊ดํ ์ฐ๊ตฌ | A Study on Operation Methodology of A Signalized Intersection Based on Optimization of Lane-Uses | {
"journal_name": "ํ๊ตญ๋๋กํํ",
"publisher": null,
"pub_year": null,
"pub_month": null,
"volume": null,
"issue": null
} | [
"๊น์ฃผํ(์์๋ํ๊ต); ์ ์ธ๊ต((์ฃผ)ํ๊ตญํด์ธ๊ธฐ์ ๊ณต์ฌ)"
] | PURPOSES : The purpose of this study is to propose delay-minimizing operation methodology of a signalized intersection based upon optimization of lane-uses on approaching lanes for an intersection.
METHODS: For the optimization model of lane-uses, a set of constraints are set up to ensure feasibility and safety of the lane-uses, traffic flow, and signal settings. Minimization of demand to saturation flow ratio of a dual-ring signal control system is introduced to the objective function for delay minimization and effective signal operation. Using the optimized lane-uses, signal timings are optimized by delay-based model of TRANSYT-7F.
RESULTS : It was found that the proposed objective function is great relation with delay time for an intersection. From the experimental results, the method was approved to be effective in reducing delay time. Especially, cases for two left-turn lanes reduced greater delays than those for a left turn lane. It is noticed that the cases for different traffic volume by approach reduced greater delays than those for the same traffic volume by approach.
CONCLUSIONS : It was concluded that the objective function is proper for lane-uses optimizing model and the operation method is effective in reducing delay time for signalized intersections. | ํ ๋ชฉ๊ณตํ | null | kci_detailed_000165.xml | |||
ART001826311 | oai_dc | Pass-by๊ณ์ธก๊ณผ NCPX๊ณ์ธก์ ์ํ ์ฃผํ์ ๋ณ ์์ ์์ธก ๋ชจ๋ธ๊ฐ๋ฐ์ ๊ดํ ์ฐ๊ตฌ | A Study on Development of the Prediction Model Related to the Sound Pressure in Terms of Frequencies, Using the Pass-by and NCPX Method | {
"journal_name": "ํ๊ตญ๋๋กํํ",
"publisher": null,
"pub_year": null,
"pub_month": null,
"volume": null,
"issue": null
} | [
"๊น๋์(์์ธ๊ณผํ๊ธฐ์ ๋ํ๊ต); ๋ฌธ์ฑํธ(์์ธ๊ณผํ๊ธฐ์ ๋ํ๊ต); ์๋์(ํ๊ตญ๊ฑด์ค๊ธฐ์ ์ฐ๊ตฌ์); ์ํ์ฅ(ํ๊ตญ๊ฑด์ค๊ธฐ์ ์ฐ๊ตฌ์)"
] | PURPOSES: The methods of measuring the sound from the noise source are Pass-by method and NCPX (Noble Close Proximity) method.
These measuring methods were used to determine the linkage of TAPL (Total Acoustic Pressure Level) and SPL (Sound Pressure Level) in terms of frequencies.
METHODS : The frequency analysis methods are DFT (Discrete Fourier Transform) and FFT (Fast Fourier Transform), CPB (Constant Percentage Bandwidth). The CPB analysis was used in this study, based on the 1/3 octave band option configured for the frequency analysis.
Furthermore, the regression analysis was used at the condition related to the sound attenuation effect. The MPE (Mean Percentage Error) and RMSE (Root Mean Squared Error) were utilized for calculating the error.
RESULTS: From the results of the CPB frequency analysis, the predicted SPL along the frequency has 99.1% maximum precision with the measured SPL, resulting in roughly 1 dB(A) error. The TAPL results have precision by 99.37% with the measured TAPL. The predicted TAPL results at this study by using the SPL prediction model along the frequency have the maximum precision of 98.37% with the vehicle velocity.
CONCLUSIONS: The Predicted SPL model along the frequency and the TAPL result by using the predicted SPL model have a high level of accuracy through this study. But the vehicle velocity-TAPL prediction model from the previous study by using the log regression analysis cannot be consistent with the TAPL result by using the predicted SPL model. | ํ ๋ชฉ๊ณตํ | null | kci_detailed_000165.xml | |||
ART001826317 | oai_dc | ์ง๋ฐฉ๋ถ ๋๋ก๊ตฌ๊ฐ์ ์ฌ๊ณ ์์ ๊ณ์ ๊ฐ๋ฐ์ ๊ดํ ์ฐ๊ตฌ | A Study for Accident Modification Factors for Rural Road Segments | {
"journal_name": "ํ๊ตญ๋๋กํํ",
"publisher": null,
"pub_year": null,
"pub_month": null,
"volume": null,
"issue": null
} | [
"์ค์ฃผํ(ํ๊ตญ๊ตํต๋ํ๊ต); ํฉ์ ์(ํ๊ตญ๊ตํต๋ํ๊ต)"
] | PURPOSES: Previous Speed Profile reflects the patterns of speeds in sections of tangents to curves in the roads. However these patterns are uniform of speeds and Acceleration/Deceleration. In oder to supplement these shortcomings. this study made a new profile which can contain factors of Acceleration/Deceleration through theories of Previous Speed Profiles.
METHODS : For sakes, this study developed the speed prediction model of Rural Multi-Lane Highways and calculated Acceleration/Deceleration by appling a Polynomial model based on developed speed prediction model. Polynomial model is based on second by second. Acceleration/Deceleration Profile is developed with the various scenarios of road geometric conditions.
RESULTS: The longer an ahead tangent length is, The higher an acceleration rate in curve occurs due to wide sight distance. However when there are big speed gaps between two curves, the longer tangent length alleviate acceleration rate.
CONCLUSIONS: Acceleration/Deceleration Profile can overview th patterns of speeds and Accelerations/Decelerations in the various road geometric conditions. Also this result will help road designer have a proper guidance to exam a potential geometric conditions where may occur the acceleration/deceleration states. | ํ ๋ชฉ๊ณตํ | null | kci_detailed_000165.xml | |||
ART001826303 | oai_dc | ๋จ์ผ ๊ตฌ์กฐ ๋ฐ ์ง๊ณต์ธต์ด ์๋ ์ด์ค ๊ตฌ์กฐ ํด๋ฆฌ๋จธ ๋ฐฉ์ํจ๋์์ํฅํฌ๊ณผ์์ค ๋น๊ต | Comparison of Sound Transmission Loss Through Single and Double with Vacuum Layer Polymer Soundproof Panel | {
"journal_name": "ํ๊ตญ๋๋กํํ",
"publisher": null,
"pub_year": null,
"pub_month": null,
"volume": null,
"issue": null
} | [
"์ด์ฃผํ(๊ณผํ๊ธฐ์ ์ฐํฉ๋ํ์๋ํ๊ต); ๊น์ผํธ(ํ๊ตญ๊ฑด์ค๊ธฐ์ ์ฐ๊ตฌ์); ์๊ดํธ(ํ๊ตญ๊ฑด์ค๊ธฐ์ ์ฐ๊ตฌ์)"
] | PURPOSES : This study is to compare sound transmission loss(STL) value depending on the four kinds of materials, PC(Polycarbonate), PMMA(Polymethyl mathacrylate), PE(Polyethlyene), PP(Polypropylene), and two types of structure, single layer and double with vacuum layer, of soundproof panel.
METHODS : With four sorts of polymer material, the specimens were made as various structures, 4 mm and 8 mm of single soundpoof panel and vacuum layered 4 mm of one. The experimental condition and procedures were complied with authorized process test, KS F 2808.
RESULTS: STL of single panel made of PC were the greatest followed by PMMA, PE, PP regardless of the thickness of panel, However, STL of PMMA panel began to decrease around 2500 Hz and reached the lowest value among others in 5000 Hz. Vacuum layer soundproof panel showed good performance in more than 2000 Hz. Only vacuum layer panel made of PC presented resonance frequency at 800 Hz while that of other vacuum ones at 1000 Hz.
CONCLUSIONS: According to results of single layer, it was found that single panel functioned as the theorical way we expected in terms of surface density. That trends were blurred as the panel got thicker. And it was suggested also that vacuum layer panel performed well at high frequency, more than 2000 Hz. | ํ ๋ชฉ๊ณตํ | null | kci_detailed_000165.xml | |||
ART001826312 | oai_dc | ๊ณ ์๋๋ก ํจ๊ฒ์ดํธ ๊ทผ์ฒ ๋ผ๋ธ์คํธ๋ฆฝ ํํ์ ๋ฐ๋ฅธ ์ง๋ ๋ฐ์๋ฒจ ์ฐ๊ตฌ | A Study on the Vibration Decibel Related to the Shape of Rumble Strip Located on the Highway Tollgate | {
"journal_name": "ํ๊ตญ๋๋กํํ",
"publisher": null,
"pub_year": null,
"pub_month": null,
"volume": null,
"issue": null
} | [
"๊น๋์(์์ธ๊ณผํ๊ธฐ์ ๋ํ๊ต); ์ฅ์์ (์์ธ๊ณผํ๊ธฐ์ ๋ํ๊ต); ๋ฌธ์ฑํธ(์์ธ๊ณผํ๊ธฐ์ ๋ํ๊ต)"
] | PURPOSES: The rumble strip installed at the highway near the tollgate has the purpose to reduce the vehicle velocity or prevent sleepiness by awakening people to the danger. These rumble strip has different vibration decibel from the rumble strip shapes, resulting in some fatigue damage to human because a driver suffers from a lot of stress and displeasure. In this connection, the objective of this paper is to analyze the vibration decibel perceived by a driver in the vehicle under some conditions.
METHODS: The vibration decibel conveyed from the tire can be analyzed. The frequency analysis methods were used according to DFT (Discrete Fourier Transform) analysis, FFT (Fast Fourier Transform) analysis, CPB (Constant Percentage Bandwidth) analysis. But the frequency analysis method in this paper is the 1/24 OCT(Octave) band analysis because of the convenience of the analysis and the overall vibration amplitude along the frequency.
RESULTS : By using the results of the vibration decibel after analyzing the 1/24 OCT band analysis, these results can be compared from some conditions (e.g., rumble strip shape, uniform velocity of a vehicle, road condition, mass of a vehicle). As a result, the numerical values of decibel are not directly proportional to the vehicle velocity.
CONCLUSIONS : At the condition that a vehicle is passing by the rumble strip, the value of a vibration decibel at the rumble strip of the cylinder shape is smaller than the rumble strip of rectangular shape regardless of the rumble strip depth and width. At the mass condition, the more a vehicle is massive, the more the vibration decibel increases. At the road condition, the vibration decibel at the wet road is smaller than the value at dry road condition. | ํ ๋ชฉ๊ณตํ | null | kci_detailed_000165.xml | |||
ART001826309 | oai_dc | NCPX๋ฅผ ์ด์ฉํ ๋๋ก ํ์ธต ์ ํ๋ณ ๋
ธ๋ฉด ์์ ๋น๊ต ์ฐ๊ตฌ | A Study for Comparing Road Noise by Surface Types using NCPX | {
"journal_name": "ํ๊ตญ๋๋กํํ",
"publisher": null,
"pub_year": null,
"pub_month": null,
"volume": null,
"issue": null
} | [
"๊ฐ์ํ(ํ๊ตญ๊ฑด์ค๊ธฐ์ ์ฐ๊ตฌ์); ๋ฌธํ๋ฃก(ํ๊ตญ๊ฑด์ค๊ธฐ์ ์ฐ๊ตฌ์)"
] | PURPOSES: The purpose of this study is to study the noise reducing effect of Micro Surfacing by comparing general asphalt, longitudinal tining and Slurry Seal.
METHODS: This study measures vehiclesโnoise of each section by the NCPX method that can measure noise between the road surface and the tire at the field. Total sound pressure and sound pressure level by the 1/3 octave band frequency are calculated through the field data of each section. Total sound pressure level is compared by ANOVA test statistically. After ANOVA test, post-hoc test is conducted to know mean difference of surface type by Tukey.
RESULTS : As the result of CPB analysis to confirm sound pressure levels by frequency, it was shown that sound pressure levels by frequency are totally similar except for those of frequency bands between 100Hz and 500Hz. The result of ANOVA test and post-hoc test, it was shown that sections of surface type have a difference. The result of Micro Surfacing was lower 2~5dB(A) than other surface type.
CONCLUSIONS: It is found that the noise reduction performance of Micro Surfacing was better than other surface type. | ํ ๋ชฉ๊ณตํ | null | kci_detailed_000165.xml | |||
ART001826302 | oai_dc | ๊ด์ด๋งค ์ฝํฌ๋ฆฌํธ ๋๋ก ๊ตฌ์กฐ๋ฌผ์ ํจ์จ์ ์๊ณต๋ฐฉ๋ฒ์ ๋ํ ์คํ์ ์ฐ๊ตฌ | An Experimental Study for the Construction of Photocatalytic Method Concrete Road Structure | {
"journal_name": "ํ๊ตญ๋๋กํํ",
"publisher": null,
"pub_year": null,
"pub_month": null,
"volume": null,
"issue": null
} | [
"ํ์ฑ์ฌ(๊ฐ๋ฆ์์ฃผ๋ํ๊ต ํ ๋ชฉ๊ณตํ๊ณผ); ์ด์น์ฐ(๊ฐ๋ฆ์์ฃผ๋ํ๊ต)"
] | PURPOSES : About 35% of air pollutant is occurred from road transport. NOx is the primary pollutant. Recently, the importance of NOx removal has arisen in the world. TiO2 is very efficient for removing NOx by photocatalytic reaction. The mechanism of removing NOx is the reaction of photocatalysis and solar energy. Therefore, TiO2 in concrete need to be contacted with solar radiation to be activated. In general, TiO2 concrete are produced by substitute TiO2 as a part of concrete binder. However, 90% of TiO2 in the photocatalysis can not contacted with the pollutant in the air and solar radiation. Coating and penetration method are attempted as the alternative of mixing method in order to locate TiO2 to the surface of structure.
METHODS : The goal of this study was to attempt to locate TiO2 to the surface of concrete, so we can use the concrete in pavement construction. The distribution of TiO2 along the depth were confirmed by basing on the comparison of TiO2 compare by using the EDAX(Energy Dispersive X-ray Spectroscopy).
RESULTS : TiO2 were distributed within 3mm from concrete surface. This distribution of TiO2 is desirable, since the TiO2 induce photocatalysis are located to where they can be contacted with the air pollutant and solar radiation.
CONCLUSIONS : Nano size TiO2 is easily penetration in the top 3mm of concrete surface. By the penetration TiO2 concrete can be produced with the use of only 10% of TiO2, by comparing the mixing types. | ํ ๋ชฉ๊ณตํ | null | kci_detailed_000165.xml | |||
ART001826315 | oai_dc | ์ค๊ณ์ผ๊ด์ฑ์ ๋ฐ์ํ ๊ฐ๊ฐ์๋ ํ๋กํ์ผ ๊ฐ๋ฐ- ์ง๋ฐฉ๋ถ ๋ค์ฐจ๋ก๋๋ก๋ฅผ ์ค์ฌ์ผ๋ก - | Acceleration and Deceleration Profile Development of Reflecting Road Design Consistency | {
"journal_name": "ํ๊ตญ๋๋กํํ",
"publisher": null,
"pub_year": null,
"pub_month": null,
"volume": null,
"issue": null
} | [
"์ต์ฌ์ฑ(์์ธ์๋ฆฝ๋ํ๊ต); ์ด์ข
ํ(ํ๊ตญ์ฐ์
๊ด๊ณ์ฐ๊ตฌ์); ์ ์๋ฏผ((์ฃผ)๊ฑด์์ด์์จ); ์กฐ์๋ฒ(ํ๊ตญ๊ฑด์ค๊ธฐ์ ์ฐ๊ตฌ์); ๊น์์ฝ(์ฌ๋จ๋ฒ์ธ ์ ๋ถ๋ฐ์ ์ฐ๊ตฌ์)"
] | PURPOSES: Previous Speed Profile reflects the patterns of speeds in sections of tangents to curves in the roads. However these patterns are uniform of speeds and Acceleration/Deceleration. In oder to supplement these shortcomings. this study made a new profile which can contain factors of Acceleration/Deceleration through theories of Previous Speed Profiles.
METHODS : For sakes, this study developed the speed prediction model of Rural Multi-Lane Highways and calculated Acceleration/Deceleration by appling a Polynomial model based on developed speed prediction model. Polynomial model is based on second by second. Acceleration/Deceleration Profile is developed with the various scenarios of road geometric conditions.
RESULTS: The longer an ahead tangent length is, The higher an acceleration rate in curve occurs due to wide sight distance. However when there are big speed gaps between two curves, the longer tangent length alleviate acceleration rate.
CONCLUSIONS: Acceleration/Deceleration Profile can overview th patterns of speeds and Accelerations/Decelerations in the various road geometric conditions. Also this result will help road designer have a proper guidance to exam a potential geometric conditions where may occur the acceleration/deceleration states. | ํ ๋ชฉ๊ณตํ | null | kci_detailed_000165.xml | |||
ART001826304 | oai_dc | ๊ฒจ์ธ์ฒ ๋ณด๋ ๋ฏธ๋๋ผ ์ ํญ | Skid Resistance of the Sidewalks in Winter | {
"journal_name": "ํ๊ตญ๋๋กํํ",
"publisher": null,
"pub_year": null,
"pub_month": null,
"volume": null,
"issue": null
} | [
"๊น์ฉ์(ํ๊ตญ๊ฑด์ค๊ธฐ์ ์ฐ๊ตฌ์)"
] | PURPOSES: This study aimed to measure the skid resistance of the sidewalk in order to find out the relationship between different surface types and skid resistance. By using British Pendulum Tester, skid resistance of sidewalk was measured in a wet after snow-melt, sludgy, and snowy conditions.
METHODS : The skid resistance was measured on surfaces including Concrete Interlocking Block Paving, Colour Asphalt Pavement, Granite Block Paving, Manhole, and Tactile Paving for Visually Impaired. Five trials at each measurement were made, and the average and standard deviation were derived.
RESULTS: The skid resistance measured in wet after snow-melt, sludgy, and snowy conditions for the various surface types are summarized and compared. Reduction rates of skid resistance of sludgy and snowy against wet after snow-melt are also analysed. The skid resistance variation between measurement points which mimic pedestrian route in study site are analysed to check out the consistency of the skid resistance along the sidewalk.
CONCLUSIONS : The study concluded that the skid resistance of sidewalk surfaces varied depending on the surface types and weather conditions. Secondly, reduction rates of skid resistance according to weather changes are varied depending on the surface types, Thirdly, consistency of skid resistance along the pedestrian route is hardly acquired in the study site at least. So, future study on the consistency evaluation for skid resistance along sidewalk is strongly recommended. | ํ ๋ชฉ๊ณตํ | null | kci_detailed_000165.xml | |||
ART001826307 | oai_dc | ๋๋ก ์์ ์ ๊ฐ์ ์ํ ๋ฅ๋์์์ ์ด ์์คํ
์ ๊ฐ๋ฐ ๋ฐ ๊ธฐ์ด์คํ | Development and Basic Experiment of Active Noise Control System for Reduction of Road Noise | {
"journal_name": "ํ๊ตญ๋๋กํํ",
"publisher": null,
"pub_year": null,
"pub_month": null,
"volume": null,
"issue": null
} | [
"๋ฌธํ๋ฃก(ํ๊ตญ๊ฑด์ค๊ธฐ์ ์ฐ๊ตฌ์); ๊ฐ์ํ(ํ๊ตญ๊ฑด์ค๊ธฐ์ ์ฐ๊ตฌ์); ์์ ์ง(ํ๊ตญ๊ฑด์ค๊ธฐ์ ์ฐ๊ตฌ์)"
] | PURPOSES: The purpose of this study is about noise which is generated from roads and is consist of irregular frequency variation from low frequency to various band. The existing methods of noise reduction are sound barrier that uses insulation material and absorbing material or have applied passive technology of noise reduction by devices. The total frequency band is needed to apply active noise control.
METHODS: In this study applies to the field of road traffic environment, signal processing controller and various analog signal input/output, the amplifier module is based on parallel-core embedded processor designed. DSP performs the control algorithm of the road traffic noise.
Noise sources in the open space performance of evaluation were applied. In this study, controller of active signal processor was designed based on the module of audio input/output and main controller of embedded process. The controller of active signal processor operates noise reduction algorithm and performance tests of noise reduction in inside and outside environment were executed.
RESULTS : The signal processing controller with OMAP-L137 parallel-core processors as the center, DSP processors in the active control operations dealt with quickly. To maximize the operation speed of an object and ARM processor is external function keys and display for functions and evaluating the performance management system was designed for the purpose of the interface. Therefore the reduction of road traffic noise has established an electronic controller-based noise reduction.
CONCLUSIONS : It is shown that noise reduction is effective in the case of pour tonal sound and complex tonal sound below 500Hz by appling to Fx-LMS. | ํ ๋ชฉ๊ณตํ | null | kci_detailed_000165.xml | |||
ART001826310 | oai_dc | ๋ฐ์ํ๋ฉด๋ถ์๋ฒ์ ์ํ ํ์ํฌ์ง ํ์ฑ ๊ณ ๋ก์ฌ๋๊ทธ ๋ชจ๋ฅดํ๋ฅด์์ต์ ๋ฐฐํฉ ๋์ถ์ ๊ดํ ์ฐ๊ตฌ | Optimized Mixing Design of Carbon-Capturing and Sequestering Activated Blast-Furnace Slag Mortar by Response Surface Analysis | {
"journal_name": "ํ๊ตญ๋๋กํํ",
"publisher": null,
"pub_year": null,
"pub_month": null,
"volume": null,
"issue": null
} | [
"์ฅ๋ด์ง(๊ฐ์๋ํ๊ต); ๋ฐ์ฒ ์ฐ(๊ฐ์๋ํ๊ต); ๊น์น์(๊ฐ์๋ํ๊ต); ์ฃผ๋ฏผ๊ด(๊ฐ์๋ํ๊ต); ๋ฐ๊ธฐํ(ํ๊ตญ๊ฑด์ค๊ธฐ์ ์ฐ๊ตฌ์); ์ด์์ค(ํ๊ตญ๊ฑด์ค๊ธฐ์ ์ฐ๊ตฌ์)"
] | PURPOSES : In this study blast furnace slag, an industrial byproduct, was used with an activating chemicals, Ca(OH)2 and Na2SiO3 for carbon capture and sequestration as well as strength development.
METHODS: This paper presents the optimized mixing design of Carbon-Capturing and Sequestering Activated Blast-Furnace Slag Mortar.
Design of experiments in order to the optimized mixing design was applied and commercial program (MINITAB) was used. Statistical analysis was used to Box-Behnken (B-B) method in response surface analysis.
RESULTS : The influencing factors of experimental are water ratio, Chemical admixture ratio and Curing temperature. In the results of response surface analysis, to obtain goal performance, the optimized mixing design for Carbon-Capturing and Sequestering Activated Blast- Furnace Slag Mortar were water ratio 40%, Chemical admixture ratio 58.78% and Curing temperature of 60โ.
CONCLUSIONS: Compared with previous studies of this experiment is to some extent the optimal combination is expected to be reliable. | ํ ๋ชฉ๊ณตํ | null | kci_detailed_000165.xml | |||
ART001826321 | oai_dc | ์ฐจ๋์ด๋๊ถค์ ๊ธฐ๋ฐ ์ค์๋ฒ์ค์ ์ฉ์ฐจ๋ก ๊ตฌ๊ฐ ์ ํ์ค๊ณ ๋ถ์ | Analysis of Alignment Design of Central Exclusive Bus Lane Based on Vehicle Moving Trajectory | {
"journal_name": "ํ๊ตญ๋๋กํํ",
"publisher": null,
"pub_year": null,
"pub_month": null,
"volume": null,
"issue": null
} | [
"๊น์ฉ์(ํ๊ตญ๊ฑด์ค๊ธฐ์ ์ฐ๊ตฌ์); ์ด์๊ธฐ(ํ๊ตญ๊ฑด์ค๊ธฐ์ ์ฐ๊ตฌ์)"
] | PURPOSES : The lack of details of design guideline for zig-zag shaped section approaching central bus stop leads an traffic accident proneness. So, this study analysed the geometric elements of central bus stop area in terms of vehicle dynamics and suggested design alternatives.
METHODS: The study analysed a dynamic behaviour of bus moving in and out of zig-zag shaped section using Auto-Turn under scenarios.
Based upon dynamic analysis, the study found out the width of overtaking lane is the most influential factor for a safe moving at zig-zag alignment.
RESULTS : The width of overtaking lane at design speed of 40, 50, and 60 km/h respectively was suggested given taper ratio of 1 to 10 required for Bus Rapid Transit (BRT), and the lane width is not wider than 4.0m which possibly makes two vehicles using the same lane. Also, the width of overtaking lane which mitigates the taper ratio was suggested with the same restriction about the maximum lane width.
CONCLUSIONS: The results of the study can be used to prepare a design guideline on zig-zag shaped alignment of central bus exclusive lanes. The more stable moving is expected by applying the design alternatives suggested, therefore the lower rate of traffic crashes at the vicinity of central bus stops. | ํ ๋ชฉ๊ณตํ | null | kci_detailed_000165.xml | |||
ART001775132 | oai_dc | ๊ตํต์ ์จํ ๊ตฌ์ญ ๊ณผ์๋ฐฉ์งํฑ ์ต์ ์ค์น๊ฐ๊ฒฉ | The Optimal Spacing of Speed Humps in Traffic Calming Areas | {
"journal_name": "ํ๊ตญ๋๋กํํ",
"publisher": null,
"pub_year": null,
"pub_month": null,
"volume": null,
"issue": null
} | [
"์ฌ์ธ์(ํ๊ตญ๋๋ก๊ตํตํํ); ๋ฐฑ์ ๊ธธ(ํ๊ตญ๋๋ก๊ตํตํํ); ์ต์ฅ์(ํ๊ตญ๋๋ก๊ตํตํํ); ๊น์ฉ์(ํ๊ตญ๊ฑด์ค๊ธฐ์ ์ฐ๊ตฌ์)"
] | PURPOSES : This study aims to suggest the optimal spacing between speed humps which is placed at traffic calming areas including pedestrian priority zones, school zones, and residential areas.
METHODS: The study measured the operating speed of vehicles passing through two successive humps by using laser gun in 0.2 seconds interval, and analysed the basic statistical characteristics of speeds data to have an insight on the relationship between spacing and speed.
Assumption was made to derive the maximum spacing within which two successive humps influence each other.
RESULTS: The statistically significant model explaining the relationship between spacing and 85th percentile speed of vehicles was derived as well as the maximum spacing maintained in order to take the benefits of successive installation of humps.
CONCLUSIONS: Spacing of 20 meters was suggested to achieve the widely accepted target speed of 30 km/h in traffic calming zone, and spacing of 70 meters was suggested as a maximum spacing. The comparison across the studies were made and empirical reasoning the difference of results between studies was discussed as well as the future studies. | ํ ๋ชฉ๊ณตํ | null | kci_detailed_000165.xml | |||
ART001775135 | oai_dc | 4์ง ์ ํธ๊ต์ฐจ๋ก์์ ํจ์จ์ ์์ ๊ฑฐ ๊ตํต๋ฅ ์ฒ๋ฆฌ๋ฐฉ์ ์ฐ๊ตฌ | A Study on Efficient Management of Bicycle Traffic Flow at Four-Legged Intersections | {
"journal_name": "ํ๊ตญ๋๋กํํ",
"publisher": null,
"pub_year": null,
"pub_month": null,
"volume": null,
"issue": null
} | [
"๋ชฉ์น์ค(ํ๊ตญ์ฒ ๋๊ธฐ์ ์ฐ๊ตฌ์); ๊น์์ฒ (์ธ์ฒ๋ํ๊ต); ํํฌ๋ฒ(ํ๊ตญ๋๋ก๊ณต์ฌ)"
] | PURPOSES: This study aims to suggest a proper left-turn treatment method for the bicycle traffic flow at four-legged intersections.
METHODS: Four types of crossing methods are proposed and analyzed : (1) indirect left turn, (2) direct left turn, (3) direct left turn on a Bike Box, and (4) direct left turn on bike left turn lane. The VISSIM simulation tests were conducted based on forty-eight operation scenarios prepared by varying vehicle and bicycle traffic volumes.
RESULTS : The results from the four-legged signalized intersections suggest that (1) the indirect left turn is appropriate when vehicle demand is high, (2) the direct left turn is efficient on most traffic situation but the safety is a concern, (3) the direct left turn on a Bike Box is appropriate when bicycle demand is high while vehicle demand is not, and (4) the direct left turn on a bike left turn lane is appropriate when both vehicle and bicycle demand are low.
CONCLUSIONS : The direct left turn of bicycle provides more efficiency than the indirect left turn at the four-legged intersections but to apply the methods and to study more, advanced evaluation methods, related law, and insurance programs are needed. | ํ ๋ชฉ๊ณตํ | null | kci_detailed_000165.xml | |||
ART001775133 | oai_dc | ๋ฒ์ค์ ์ฌ์ฐจ์ธ์์ ๊ณ ๋ คํ ์ค์๋ฒ์ค์ ์ฉ์ฐจ๋ก ํจ๊ณผ๋ถ์ ๋ฐฉ๋ฒ์ ๊ดํ ์ฐ๊ตฌ | A Study of Effectiveness Analysis Method of Exclusive Median Bus Lanes Considering Number of People in Buses | {
"journal_name": "ํ๊ตญ๋๋กํํ",
"publisher": null,
"pub_year": null,
"pub_month": null,
"volume": null,
"issue": null
} | [
"์กฐํ์ (ํ๊ตญ๊ตํต์ฐ๊ตฌ์)"
] | PURPOSES: The purpose of this study is to develop an effectiveness analysis method of exclusive median bus lanes, which is necessary in order to improve operation efficiency of exclusive median bus lanes.
METHODS : The operation characteristics of "signalized intersection including exclusive median bus lanes" and "normal signalized intersection" were investigated and the existing capacity analysis method was also reviewed to analyze the effectiveness of exclusive median bus lanes. Delay reduction of passengers using exclusive median bus lanes which can be considered as the benefit of exclusive median bus lanes and the number of people in buses were included in the proposed effectiveness analysis method.
RESULTS : It was found that the proposed method expresses properly the effectiveness of exclusive median bus lanes through performing sensitivity analysis and analyzing with the real data of the number of people in buses and passenger cars. It was also found that the proposed method demonstrates the effectiveness that measure of effectiveness of signalized intersections is changed to "sec/person".
CONCLUSIONS : It was concluded that the method is a proper effectiveness analysis method because it can reflect the benefit of passengers in buses. | ํ ๋ชฉ๊ณตํ | null | kci_detailed_000165.xml | |||
ART001775129 | oai_dc | Win-Road Simulation์ ํ์ฉํ ๊ณ ์๋๋ก ์ค์๋ถ๋ฆฌ๋ ์์ ์ ๋๋์ฅ์ ๋ํ ๊ฒฝ๊ด์ ํธ๋ ๋ถ์ | Landscape Preference of the Guide Coating in the Median Barrier on the Expressway by Win-Road Simulation | {
"journal_name": "ํ๊ตญ๋๋กํํ",
"publisher": null,
"pub_year": null,
"pub_month": null,
"volume": null,
"issue": null
} | [
"๊นํ๊ท (๋ช
์ง๋ํ๊ต); ์ต์ฌ์(๊ตํต์์ ๊ณต๋จ); ์ด๋ฌธ์(๊ตํต์์ ๊ณต๋จ); ๊ธ๊ธฐ์ (๋ช
์ง๋ํ๊ต)"
] | PURPOSES: By conducting the landscape survey that considered landscape factors of the Guide Coating in the Median Barrier that applied of the various level by simulating of the Guide Coating in the Median Barrier on the expressway, they showed the quantitative standard of landscape preference factors that the Guide Coating gives.
METHODS: The shape of the Structural Equation Modeling used AMOS program and made a shape that is made of landscape preference for the Guide Coating in the Median Barrier on the expressway a dependent variable.
RESULTS: Result in this, they showed that functionality and emotionalism are the factors that affect the landscape preference.
CONCLUSIONS: In the main study, not only showing the Guide Coating in the Median Barrier on the expressway landscape valuation but also embodying the Structural Equation Modeling(SEM) of each group, knowing the Guide Coating and unknowing the Guide Coating. By embodying this, they could study that the drivers' quantitative standard is different when the Guide Coating become first applied and being changed after. | ํ ๋ชฉ๊ณตํ | null | kci_detailed_000165.xml | |||
ART001775130 | oai_dc | ๋๋ก ๋
ธ๋ฉด ์์ ์ฑ ๋ถ์์ ์ํ ๋ฌผ๊ณ ์ ์ธก์ ์ฅ๋น ๊ฐ๋ฐ ๋ฐ ํ์ฅ ์ ์ฉ์ฑ ์ฐ๊ตฌ | Comprehensive Evaluation of Water-Reservoir Measuring Equipment for Highway Safety Analysis | {
"journal_name": "ํ๊ตญ๋๋กํํ",
"publisher": null,
"pub_year": null,
"pub_month": null,
"volume": null,
"issue": null
} | [
"์ด์ง๊ฐ(๋ก๋์ฝ๋ฆฌ์); ์ค๋๊ทผ(ํ๊ตญ๊ฑด์ค๊ธฐ์ ์ฐ๊ตฌ์); ์กฐ์์ค(ใ๋ก๋์ฝ๋ฆฌ์)"
] | PURPOSES : The purpose of this study is development of automatic equipment to measure the road water-reservoir which can be one of factors for road traffic safety inspection and its application to safety analysis.
METHODS : The scopes of this study are the examination of the riskiness and location of road water-reservoir through literature review,development of appropriate sensor and automatic equipment to survey the road water-reservoir and evaluation of field application.
RESULTS: The laser lighting and IR camera were selected to develop the equipment. It was found from the field calibration that there is a high correlation between rutting and road water-reservoir and road water-reservoir caused by rutting can be correctly calculated. About 20.2km of national highway were inspected for case study and field application. It was found from correlation of traffic incident that 2.08km of the latent length for water-reservoir which is related to 12 traffic incidents were analyzed.
CONCLUSIONS : This technique can be utilized evaluation method for road condition such as road water-reservoir for conventional evaluation system such as road traffic safety assessment and safety analysis and it can be use to new evaluation system to apply various road condition and traffic condition. | ํ ๋ชฉ๊ณตํ | null | kci_detailed_000165.xml | |||
ART001775131 | oai_dc | ํ๊ตญ ๋๋ก ์๋ณธ์ ์ฐ์
์ ๋ํ ์ํฅ๊ณผ ๋๋ก์๋ณธ ์คํก์ ์ต์ ์์ค ๋ถ์ | Contribution of Road Capital in Industry and Optimal Level of Road Capital in South Korea | {
"journal_name": "ํ๊ตญ๋๋กํํ",
"publisher": null,
"pub_year": null,
"pub_month": null,
"volume": null,
"issue": null
} | [
"๊ตญ์ฐ๊ฐ(์์ธ์ฐ๊ตฌ์ ๊ตํต์์คํ
์ฐ๊ตฌ์ค)"
] | PURPOSES: This study is to suggest the Contribution of Road Capital in Industry and Optimal Level of Road Investment in South Korea METHODS: Based on the literature review, This research is empirically estimated using disaggregate and disaggregated data composed of 10-sectors covering the entire korea economy for the period 1970~2000. The relevant policy questions addressed in this report are : cost reduction and Scale elasticities of road, effect of road capital stock on demand for labor, capital and materials, marginal effect of road, industry TFP growth decomposition, Net Social Rates of Returns, optimal of road capital.
RESULTS : The marginal benefits of the road capital at the industry level were calculated using the estimated cost elasticities. Demand for the road capital services varies across industries as do the marginal effects. The marginal benefits are positive for the principal industries. This suggests that for these industries the existing stock of road capital may be under supplied.
CONCLUSIONS: This results emerges is that the ratio of the optimum to actual road capital, measured by road, was high at beginning of the period 1970s and declined 1990s. There appears to be evidence of under-investment in road capital. That is continuous and premeditated investment for road which lead to saving time and finance. | ํ ๋ชฉ๊ณตํ | null | kci_detailed_000165.xml | |||
ART001775134 | oai_dc | ๊ตํต์์ค ์ํธ์ฐ๊ด์ฑ ๋ถ์๋ฐฉ๋ฒ๋ก ๊ฐ๋ฐ | Development of the Analysis Methodology for Interrelationship between Transportation Facilities | {
"journal_name": "ํ๊ตญ๋๋กํํ",
"publisher": null,
"pub_year": null,
"pub_month": null,
"volume": null,
"issue": null
} | [
"๋จ๊ถ๋ฐฑ๊ท(์์ธ๊ณผํ๊ธฐ์ ๋ํ๊ต); ์ ์ฑ๋ด(์์ธ๊ณผํ๊ธฐ์ ๋ํ๊ต); ์ฅ์ ์ง(์์ฃผ๋ํ๊ต)"
] | PURPOSES : Lots of criticism such as over/duplication investment, inconsistency of the policies among local governments and national plans etc. has been aroused due to the policy of supply-driven construction for transportation facilities. Recently, according to the environmental-friendly transportation policy, the investment of railroad has been expanded gradually, however the duplication with existing road facility makes it difficult to construct railroad. Thus it is necessary to evaluate the interrelationship between new project and existing facilities in the planning stage. However the method and the criteria for analyzing the duplication and over-investment of projects are not established in the manual, thus the feasibility of these projects are carried out from the economic point of view.
METHODS: First, It reviewed about interrelationship criteria(domestic, overseas) and proposed implications and this study directions. Next,It developed the methods of evaluating independency, competitiveness and complementarity.
RESULTS : In this study, the methods of evaluating independency, competitiveness and complementarity etc. are suggested to analyze the interrelationship between transportation facilities. The case study was carried out to examine the applicability of the methods.
CONCLUSIONS: The methods raise rationality of decision-making compared to existing one. In the future, these methods are introduced into the manual of pre-feasibility study and feasibility study, more efficient decision-making and investment are expected. | ํ ๋ชฉ๊ณตํ | null | kci_detailed_000165.xml | |||
ART001775123 | oai_dc | ๋นํ๊ดด ์ถฉ๊ฒฉํ๋ฅผ ์ด์ฉํ ์์คํํธ ๊ณต์์ฒด์ ์๋ถ๋ฏผ๊ฐ๋ ํ๊ฐ | Evaluation for Moisture Susceptibility of Asphalt Mixtures using Non-Destructive Impact Wave | {
"journal_name": "ํ๊ตญ๋๋กํํ",
"publisher": null,
"pub_year": null,
"pub_month": null,
"volume": null,
"issue": null
} | [
"์ฅ๋ณ๊ด(์์ธ๊ณผํ๊ธฐ์ ๋ํ๊ต); ๊น๋์(์์ธ๊ณผํ๊ธฐ์ ๋ํ๊ต); ๋ฌธ์ฑํธ(์์ธ๊ณผํ๊ธฐ์ ๋ํ๊ต); ์ฅ์์ (์์ธ๊ณผํ๊ธฐ์ ๋ํ๊ต)"
] | PURPOSES : This study is to evaluate moisture susceptibility of asphalt mixtures by using non-destructive impact wave and to determine durability so as to decrease the gap between before and after freezing in the future.
METHODS : Using non-destructive impact wave, this study is to determine the dynamic modulus of asphalt specimen. Furthermore, the results obtained from two experiment accelerometers are used for the dynamic modulus determination. The dynamic moduli of specimens are compared with those of the freezing-thawing specimens.
RESULTS : Test results showed that the dynamic modulus before freezing and thawing environment loads at each temperature dropped about 3.7% after the environmental loads. Furthermore, correlation analysis indicates that transition of dynamic modulus at each point is about 89.59%.
CONCLUSIONS: Evaluation of asphalt mixtures using non-destructive impact wave has excellent repeatability and simple equipment for the test. Consequently, the method in the study will be useful for evaluating the characteristics of a various asphalt mixtures. | ํ ๋ชฉ๊ณตํ | null | kci_detailed_000165.xml | |||
ART001775124 | oai_dc | ์ถฉ๊ฒฉ๊ณต์ง์ํ์ ์ด์ฉํ ๋ค์ํ ๊ณต๊ทน๋ฅ ์ ๊ฐ์ง ํฌ์์ฑ ์์คํํธ ํผํฉ๋ฌผ์ ๋ํ์ฑ๊ณ์ ๋ณํ ์ธก์ ์ ๊ดํ ์ฐ๊ตฌ | Study for Dynamic Modulus Change Measurement of Permeable Asphalt Mixtures with Various Porosity using Non-Destructive Impact Wave | {
"journal_name": "ํ๊ตญ๋๋กํํ",
"publisher": null,
"pub_year": null,
"pub_month": null,
"volume": null,
"issue": null
} | [
"์ฅ๋ณ๊ด(์์ธ๊ณผํ๊ธฐ์ ๋ํ๊ต); ์์ฑ๋ฆฐ(ํ๊ตญ๊ฑด์ค๊ธฐ์ ์ฐ๊ตฌ์); ๋ฌธ์ฑํธ(์์ธ๊ณผํ๊ธฐ์ ๋ํ๊ต)"
] | PURPOSES: This study is to evaluate the dynamic modulus changes of permeable asphalt mixtures by using non-destructive impact testing method and to compare the dynamic moduli of permeable asphalt mixtures through repeated freezing and thawing conditions.
METHODS: For the study, non-destructive impact testing method is used in order to obtain dynamic modulus of asphalt specimen and to confirm the change of dynamic modulus before and after freezing and thawing conditions.
RESULTS : This study has shown that the dynamic moduli of asphalt concrete specimens consisting of 10%, 15% and 20% porosity are reduced by 11.851%, 1.9564%, 24.593% after freezing and thawing cycles.
CONCLUSIONS : Non-destructive impact testing method is very useful and has repeatability. Specimen with 15% porosity has high durability than others. | ํ ๋ชฉ๊ณตํ | null | kci_detailed_000165.xml | |||
ART001775126 | oai_dc | ๊ตญ๋ด 2+1์ฐจ๋ก ๋๋ก ๋์
์ ๋ฐ๋ฅธ ๊ตํต์ด์ ๋ฐ ๊ฒฝ์ ์ ๋น์ฉ ์ธก๋ฉด์ ๊ธฐ๋ํจ๊ณผ ๋ถ์ | Evaluation of 2+1 Roads Application to Improve Rural Two-lane Highway in Korea | {
"journal_name": "ํ๊ตญ๋๋กํํ",
"publisher": null,
"pub_year": null,
"pub_month": null,
"volume": null,
"issue": null
} | [
"์ฑ์ฐฌ๋ค(ํ๊ตญ๊ตํต์ฐ๊ตฌ์); ์ด๋๋ฏผ(์์ธ์๋ฆฝ๋ํ๊ต); ์กฐํ์ (ํ๊ตญ๊ตํต์ฐ๊ตฌ์)"
] | PURPOSES: The purpose of this paper is to estimate expected effects on traffic operational and economic aspects of 2+1 roads application in Korea.
METHODS : Micro simulation study using VISSIM 5.0 was used to analyze the operation efficiency of 2+1 roads compared to two-lane highways and four-lane highways. Some scenarios for various traffic volumes were set up in order to analyze the effect of 2+1 roads under various traffic situations. Also imaginary road networks were set up for each type of roads. The MOEs to measure the operation efficiency were selected with average travel speed and delay. For analyzing economic effect of 2+1 roads, construction cost of a specific imaginary 2+1 road was compared to construction cost of a four-lane highway with same conditions.
RESULTS: The results of study show that a 2+1 road is more effective with 19 percents higher average travel speed and 39 percents lower average delay than a two-lane highway. In the economic analysis, construction costs to construct a 2+1 road are saved as approximately 26.4~40.7 percents when compared to construction of four-lane highway.
CONCLUSIONS: It can be concluded that 2+1 roads can improve the traffic operational level of service for two-lane highways and 2+1roads can be applied as an effective design alternative for higher-volume two-lane highways in Korea. | ํ ๋ชฉ๊ณตํ | null | kci_detailed_000165.xml | |||
ART001775122 | oai_dc | ๋จ์ํ๊ท๋ถ์์ ์ํ ๋ฐฐ์์ฑ ์์คํํธ์ ํฌ์๊ณ์ ์ฐ์ ๋ชจ๋ธ ์ ์ | Proposal for the Estimation of the Hydraulic Conductivity of Porous Asphalt Concrete Pavement using Regression Analysis | {
"journal_name": "ํ๊ตญ๋๋กํํ",
"publisher": null,
"pub_year": null,
"pub_month": null,
"volume": null,
"issue": null
} | [
"์ฅ์์ (์์ธ๊ณผํ๊ธฐ์ ๋ํ๊ต); ๊น๋์(์์ธ๊ณผํ๊ธฐ์ ๋ํ๊ต); ๋ฌธ์ฑํธ(์์ธ๊ณผํ๊ธฐ์ ๋ํ๊ต); ์ฅ๋ณ๊ด(์์ธ๊ณผํ๊ธฐ์ ๋ํ๊ต)"
] | PURPOSES : This study is to construct the regression models of drainage asphalt concrete specimens and to provide the appropriate coefficients of hydraulic conductivity prediction models.
METHODS: In terms of easy calculation of the hydraulic conductivity from porosity of asphalt concrete pavement, the estimation model of hydraulic conductivity was proposed using regression analysis. 10 specimens of drainage asphalt concrete pavement were made for measurement of the hydraulic conductivity. Hydraulic conductivity model proposed in this study was calculated by empirical model based on porosity and the grain size. In this study, it shows the compared results from permeability measured test and empirical equation, and the suitability of proposed model, using regression analysis.
RESULTS: As the result of the regression analysis, the hydraulic conductivity calculated from the proposal model was similar to that resulted from permeability measured test. Also result of RMSE (Root Mean Square Error) analysis, a proposed regression model is resulted in more accurate model.
CONCLUSIONS: The proposed model can be used in case of estimating the hydraulic conductivity at drainage asphalt concrete pavements in fields. | ํ ๋ชฉ๊ณตํ | null | kci_detailed_000165.xml | |||
ART001775116 | oai_dc | ๋๋กํฌ์ฅ ๋ณด์์ฌ ํ์ฉ ๊ฐ๋ฅ์ฑ ํ๊ฐ๋ฅผ ์ํ ์์นผ๋ฆฌ ํ์ฑ ์๋ฉํธ ๋ชจ๋ฅดํ๋ฅด ๊ธฐ์ด์ฐ๊ตฌ | Fundamental Study of Alkali Activated Cement Mortar for Evaluating Applicability of Partial-Depth Repair | {
"journal_name": "ํ๊ตญ๋๋กํํ",
"publisher": null,
"pub_year": null,
"pub_month": null,
"volume": null,
"issue": null
} | [
"์ ์ฑ์ผ(ํ๊ตญ๊ฑด์ค๊ธฐ์ ์ฐ๊ตฌ์); ์์งํ(ํ๊ตญ๊ฑด์ค๊ธฐ์ ์ฐ๊ตฌ์); ๊ถ์์(ํ๊ตญ๊ฑด์ค๊ธฐ์ ์ฐ๊ตฌ์); ์ค๊ฒฝ๊ตฌ(๊ฐ์๋ํ๊ต)"
] | PURPOSES : This study is to evaluate the feasibility of using the alkali activated cement concrete for application of partial-depth repair in pavement.
METHODS : This study analyzes the compressive strength of alkali activated cement mortar based on the changes in the amount/type/composition of binder(portland cement, fly ash, slag) and activator(NaOH, Na2SiO3, Na2CO3, Na2SO4). The mixture design is divided in case โ
of adding one kind-activator and case โ
ก of adding two kind-activators.
RESULTS : The results of case โ
show that Na2SO4 based mixture has superior the long-term strength when compared to other mixtures,and that Na2CO3 based mixture has superior the early strength when compared to other mixtures. But the mixtures of case โ
is difficult to apply in the material for early-opening-to-traffic, because the strength of all mixtures isnโt meet the criterion of traffic-opening. The results of case โ
ก show that NaOH-Na2SiO3 based mixtures has superior the early/long-term strength when compared to NaOH-Na2CO3 based mixtures.
In particular, the NaOH-Na2SiO3 based some mixtures turned out to pass the reference strength(1-day) of 21MPa as required for trafficopening.
CONCLUSIONS : With these results, it could be concluded that NaOH-Na2SiO3 based mixtures can be used as the material of pavement repair. | ํ ๋ชฉ๊ณตํ | null | kci_detailed_000165.xml | |||
ART001775117 | oai_dc | Mean Profile Depth๋ฅผ ์ด์ฉํ ์ฝํฌ๋ฆฌํธ ํฌ์ฅ์ ํ์ด์ด-๋
ธ๋ฉด์์ ์ฐ์ | Estimation of Tire-Pavement Noise for Concrete Pavement by using Mean Profile Depth | {
"journal_name": "ํ๊ตญ๋๋กํํ",
"publisher": null,
"pub_year": null,
"pub_month": null,
"volume": null,
"issue": null
} | [
"ํ์ฑ์ฌ(๊ฐ๋ฆ์์ฃผ๋ํ๊ต); ํํ์ง(๊ฐ๋ฆ์์ฃผ๋ํ๊ต); ์ด์น์ฐ(๊ฐ๋ฆ์์ฃผ๋ํ๊ต); ๊นํ๋ฐฐ(ํ๊ตญ๋๋ก๊ณต์ฌ); ๊ถ์ค์ (ํ๊ตญ๋๋ก๊ณต์ฌ)"
] | PURPOSES: There is a need to develop a method to incorporate tire-pavement noise in the pavement management system. Tire-pavement noise highly depends on the characteristics of pavement texture. Therefore, estimation of texture characteristics may give useful information to predict tire-pavement noise. This study aimed to find the relationship between tire-pavement noise and MPD(Mean Profile Depth) for concrete pavement.
METHODS : MPD and tire-pavement noise were collected on the number of expressway sections including Central Inland Test Road in Korea. Statistical analysis was performed to find the correlationship between MPD and tire-pavement noise. In addition, multiple regression analysis to find the tire-pavement noise based on MPD and type of concrete pavement texture.
RESULTS: Linear relationship between MPD and tire-pavement noise is observed for concrete pavement. Furthermore, a forensic equation to estimate tire-pavement noise based on MPD and texture types of concrete pavement is suggested.
CONCLUSIONS : Tire-pavement noise on concrete pavement can be predicted based on the consideration of texture type and MPD estimation. | ํ ๋ชฉ๊ณตํ | null | kci_detailed_000165.xml | |||
ART001775120 | oai_dc | ๊ณ ์๋๋ก ์์
์ ๊ด์ฅ์ ํก๋ฐฉํฅ ๋ผ๋ธ์คํธ๋ฆฝ์ผ๋ก ๋ฐ์๋๋ ์์ ์กฐ์ฌ | A Noise Investigation of Transverse Rumble Strip at Toll Plaza of Highway | {
"journal_name": "ํ๊ตญ๋๋กํํ",
"publisher": null,
"pub_year": null,
"pub_month": null,
"volume": null,
"issue": null
} | [
"์๋์(ํ๊ตญ๊ฑด์ค๊ธฐ์ ์ฐ๊ตฌ์); ์์์ฐฌ(ํ์๋ํ๊ต); ๊ถ์์(ํ๊ตญ๊ฑด์ค๊ธฐ์ ์ฐ๊ตฌ์); ์ด์ฌ์ค(์ ๋ถ๋ํ๊ต); ์๋ณ์(ํ๊ตญ๊ฑด์ค๊ธฐ์ ์ฐ๊ตฌ์)"
] | PURPOSES: This study is to investigate a generated traffic noise when vehicle pass over a transverse rumble strip at toll plaza of highway.
METHODS : To investigate traffic noise at toll plaza of highway, Pass-by method which is the most common used for measuring traffic noise was adopted and the traffic noise at toll plaza was measured for 10 min per hour for 11hours(13:00~24:00).
RESULTS: The measured traffic noise by pass-by method was changed as function of the transverse rumble strip configuration. Generally,the maximum difference among three noise measurement sections was 7 dB(A). It might be related with traffic speed. Also, the measured traffic noise was strongly generated from a passenger car which was 2 axle. It means that the most of traffic noise on the road is generated at tire/pavement interface of the passenger car.
CONCLUSIONS: The traffic noise was strongly related with vehicle speed and transverse rumble strip configuration on the road. For driver safety, the transverse rumble strip is definitely necessary. However, the complaints from residents near highway was increased by traffic noise from transverse rumble strip. Therefore, To satisfy both safety and reduction of traffic noise, the development of configuration of transverse rumble strip is necessary in the further study. | ํ ๋ชฉ๊ณตํ | null | kci_detailed_000165.xml | |||
ART001775121 | oai_dc | ์์คํํธ ๊ณตํญํฌ์ฅ์ PCI ์ฐ์ถ์ ์ํ ๊ณต์ ๊ฐ ๊ณก์ ๊ฐ๋ฐ | Development of Deduct Value Curves for the Pavement Condition Index of Asphalt Airfield Pavement | {
"journal_name": "ํ๊ตญ๋๋กํํ",
"publisher": null,
"pub_year": null,
"pub_month": null,
"volume": null,
"issue": null
} | [
"์ด๊ฐ์ง(ํ์๋ํ๊ต); ์์์ฐฌ(ํ์๋ํ๊ต); ์กฐ๋จํ(์ธ์ฒ๊ตญ์ ๊ณตํญ๊ณต์ฌ); ๋ฐ๋์ฑ(๊ตฐ์ฐ๋ํ๊ต)"
] | PURPOSES: This study is to develop the deduct value curves for the calculation of pavement condition index of asphalt airfield pavement.
METHODS: To develop the deduct value curves of asphalt airfield pavement, panel rating was conducted to decide the pavement condition based on pavement distress type, severity, and density.
RESULTS: Results show that standard deviation of deduct values by panel rating is increased at higher severity level and as damage density increases. The deduct value of alligator cracking show the highest.
CONCLUSIONS: The deduct value curves based on panel rating could be used without existing problems which were occurred in Shahinโs method. | ํ ๋ชฉ๊ณตํ | null | kci_detailed_000165.xml | |||
ART001775118 | oai_dc | The Effects of the Aspect Ratio on Natural Frequency of the Advanced Composite Materials Road Structures | The Effects of the Aspect Ratio on Natural Frequency of the Advanced Composite Materials Road Structures | {
"journal_name": "ํ๊ตญ๋๋กํํ",
"publisher": null,
"pub_year": null,
"pub_month": null,
"volume": null,
"issue": null
} | [
"ํ๋ด๊ตฌ(์์ธ๊ณผํ๊ธฐ์ ๋ํ๊ต)"
] | PURPOSES: Current theories for composite structures are too difficult for design engineers for construction. The purpose of this paper is to demonstrate to the practicing engineers, how to apply the advanced composite materials theory to the road structures.
METHODS: Some laminate orientations have decreasing values of , , and stiffnesses as the ply number increases. The plate aspect ratio considered is from 1 to 5. In order to study the effect of on the equilibrium equations, two cases are considered. term is considered or neglected.
RESULTS: Most of the road structures have high aspect ratios, for such cases further simplification is possible by neglecting the effect of the longitudinal moment terms.
CONCLUSIONS : Most of the road structures have plate aspect ratios higher than 2. It is concluded that, for all boundary conditions,neglecting the longitudinal moment terms is acceptable if the aspect ratio (a/b) is equal to or higher than 2. This conclusion gives good guide line for design of the road structures. | ํ ๋ชฉ๊ณตํ | null | kci_detailed_000165.xml | |||
ART001775127 | oai_dc | ์ฌํ๊ฒฝ์ ์ ํน์ฑ๊ณผ ๋๋ก๋ง๊ตฌ์กฐ๋ฅผ ๊ณ ๋ คํ ๊ณ ์๋๋ก ๊ตํต๋ ์์ธก ์ค์ฐจ ๋ณด์ ๋ชจํ | A Model to Calibrate Expressway Traffic Forecasting Errors Considering Socioeconomic Characteristics and Road Network Structure | {
"journal_name": "ํ๊ตญ๋๋กํํ",
"publisher": null,
"pub_year": null,
"pub_month": null,
"volume": null,
"issue": null
} | [
"์ด์ฉ์ฃผ(์์ฃผ๋ํ๊ต); ๊น์์ (์์ฃผ๋ํ๊ต); ์ ์ ํ(์์ฃผ๋ํ๊ต)"
] | PURPOSES : This study is to investigate the relationship of socioeconomic characteristics and road network structure with traffic growth patterns. The findings is to be used to tweak traffic forecast provided by traditional four step process using relevant socioeconomic and road network data.
METHODS: Comprehensive statistical analysis is used to identify key explanatory variables using historical observations on traffic forecast,actual traffic counts and surrounding environments. Based on statistical results, a multiple regression model is developed to predict the effects of socioeconomic and road network attributes on traffic growth patterns. The validation of the proposed model is also performed using a different set of historical data.
RESULTS : The statistical analysis results indicate that several socioeconomic characteristics and road network structure cleary affect the tendency of over- and under-estimation of road traffics. Among them, land use is a key factor which is revealed by a factor that traffic forecast for urban road tends to be under-estimated while rural road traffic prediction is generally over-estimated. The model application suggests that tweaking the traffic forecast using the proposed model can reduce the discrepancies between the predicted and actual traffic counts from 30.4%to 21.9%.
CONCLUSIONS : Prediction of road traffic growth patterns based on surrounding socioeconomic and road network attributes can help develop the optimal strategy of road construction plan by enhancing reliability of traffic forecast as well as tendency of traffic growth. | ํ ๋ชฉ๊ณตํ | null | kci_detailed_000165.xml | |||
ART001775128 | oai_dc | ์ค๊ณ์๋ ์ํฅ์ ๋ฐ๋ฅธ ์ธ๊ฐ๊ณตํ์ ํน์ฑ์ ๋ฐ์ํ ํธ๊ฒฝ์ฌ์ ํก๋ฐฉํฅ๋ง์ฐฐ๊ณ์ ๋ถ๋ฐฐ๋ฐฉ๋ฒ์ ๊ดํ ์ฐ๊ตฌ | A Study for Distribution Methods Between Superelevation and Side Friction Factor Reflecting Ergonomic Characteristics by Increasing Design Speed | {
"journal_name": "ํ๊ตญ๋๋กํํ",
"publisher": null,
"pub_year": null,
"pub_month": null,
"volume": null,
"issue": null
} | [
"์ ์น์(์์ธ์๋ฆฝ๋ํ๊ต); ๊น์์ฝ(์ฌ๋จ๋ฒ์ธ ์ ๋ถ๋ฐ์ ์ฐ๊ตฌ์); ์ต์ฌ์ฑ(์์ธ์๋ฆฝ๋ํ๊ต); ๊นํ์ง(ํ๊ตญ๋๋ก๊ณต์ฌ); ์ฅํ์ฐ(์ ๋ถ๋ํ๊ต)"
] | PURPOSES: The purpose of this study is to develop a method for distribution between superelevation and side friction factor by increasing design speed.
METHODS: First of all, a method for distribution between superelevation and side friction factor and a theory for the functional formula of side friction factor in compliance with horizontal radius applied in South Korea and the United States are considered. Especially, design speed of 140km/h and numerical value of design elements are applied to the theory for the functional formula of side friction factor in AASHTOโs methods. Also, the anxiety EEG upon running speed is measured to reflect ergonomic characteristics through field experiments at seven curve sections of the West Coast Freeway, and this data is applied to graph for the functional formula of side friction factor.
RESULTS : Matching side friction factor against the anxiety EEG, the results that a critical points of driverโs anxiety EEG sharply increase locate under existing parabola are figured out.
CONCLUSIONS : Therefore, we could get a new type of the functional formula that driverโs driving comfortability is guaranteed if the existing the functional formula of side friction factor goes down under boundary of the critical points of the anxiety EEG. | ํ ๋ชฉ๊ณตํ | null | kci_detailed_000165.xml | |||
ART001775119 | oai_dc | The Effects of Different Cross Section on Natural Frequency of the Advanced Composite Materials Road Structures | The Effects of Different Cross Section on Natural Frequency of the Advanced Composite Materials Road Structures | {
"journal_name": "ํ๊ตญ๋๋กํํ",
"publisher": null,
"pub_year": null,
"pub_month": null,
"volume": null,
"issue": null
} | [
"ํ๋ด๊ตฌ(์์ธ๊ณผํ๊ธฐ์ ๋ํ๊ต)"
] | PURPOSES: This paper aims to give a guideline and the way to apply the advanced composite materials theory to the road structures with different cross sections to the practicing engineers.
METHODS: To simple but exact method of calculating natural frequencies corresponding to the modes of vibration of road structures with different cross sections and arbitrary boundary conditions. The effect of the stiffness on the natural frequency is rigorously investigated.
RESULTS: Simple method of vibration analysis for calculating the natural frequency of the different cross sections is presented.
CONCLUSIONS: Simple method of vibration analysis for calculating the natural frequency of the different cross sections is presented. This method is a simple but exact method of calculating natural frequencies of the road structures with different cross sections. This method is extended to be applied to two dimensional problems including composite laminated road structures. | ํ ๋ชฉ๊ณตํ | null | kci_detailed_000165.xml | |||
ART001775125 | oai_dc | SWMM ๋ชจํ์ ์ด์ฉํ ๋ชฉ๊ฐ์ฒ ์ ์ญ์ LID ์์ค ์ ์ฉ ํ์์ ๊ฐํจ๊ณผ ๋ถ์ | An Analysis of Flood Mitigation Effect Applying to LID in Mokgamcheon Watershed using SWMM Model | {
"journal_name": "ํ๊ตญ๋๋กํํ",
"publisher": null,
"pub_year": null,
"pub_month": null,
"volume": null,
"issue": null
} | [
"์ฅ์์ (์์ธ๊ณผํ๊ธฐ์ ๋ํ๊ต); ๋ฌธ์ฑํธ(์์ธ๊ณผํ๊ธฐ์ ๋ํ๊ต); ์์ฑ๋ฆฐ(ํ๊ตญ๊ฑด์ค๊ธฐ์ ์ฐ๊ตฌ์)"
] | PURPOSES: In this study, flood mitigation effect of drainage asphalt concrete pavement were analyzed by a SWMM 5.0 program in order to evaluate the low impact development (LID) based on the drainage asphalt concrete pavements.
METHODS: In order to determine the porosity parameters of drainage asphalt concretes, the specimen mixtures were manufactured using the conditions presented in the previous study. The numerical simulation was conducted using the SWMM 5.0 program considering the flood mitigation effect of drainage asphalt concrete pavements. The effect of flood reduction can be observed when drainage asphalt concrete pavements were applied to Mokgamcheon watershed. The flood mitigation effect analysis of Mokgamcheon watershed as well as continuous simulation of subwatershed runoff were performed through this study.
RESULTS : The analysis of drainage asphalt concrete pavements was carried out for evaluating the effect on runoff, resulting in: the peak flow decreases up to 1.26~9.53% after drainage asphalt concrete pavements applied in the SWMM 5.0 program furthermore, the discharge decreases up to 0.55~4.11%.
CONCLUSIONS: As a result, the reduced peak flow and discharge were found through the SWMM 5.0 program. It can be concluded that the flood is effectively reduced when the drainage asphalt concrete pavements are used. | ํ ๋ชฉ๊ณตํ | null | kci_detailed_000165.xml | |||
ART001206224 | oai_dc | ๋ง์์ฐ๊ธฐ ์์คํํธ ํฌ์ฅ์ฒด์ ์ ๋จ๋ฐ์ฌ๊ท ์ด ๋ชจ์ฌ์ํ์์ด์ฉํ ์ค๋ ์ค๋ง์ฌ์ ๋ฐ์ฌ๊ท ์ด ์ง์ฐํจ๊ณผ ๋น๊ต๋ถ์ | Evaluation of Sealing Effect on Performance of Overlaid AsphaltPavement using Accelerated Reflection Cracking Test in Shear Mode | {
"journal_name": "ํ๊ตญ๋๋กํํ",
"publisher": null,
"pub_year": null,
"pub_month": null,
"volume": null,
"issue": null
} | [
"์ต๋์ถ(๋ฏธ๊ตญ ์์นด๊ณ ์ ๊ณต๋ฌด์); ์ด์๋ฒ(ใSK์ค๊ตญ๊ธฐ์ ์ฐ๊ตฌ์); ์ด์๊ด(ใ๋์ฑ์์ง๋์ด๋ง); ๊น๊ด์ฐ(๊ฐ์๋ํ๊ต)"
] | ํ ๋ชฉ๊ณตํ | null | kci_detailed_000165.xml | ||||
ART000860896 | oai_dc | ์คํ๋ฐฉ๋ฒ์ ๋ฐ๋ฅธ ํฌ์ฅ ์ฝํฌ๋ฆฌํธ์ ํผ๋ก์๋ช
| Fatigue Lives of Pavement Concrete According to Fatigue Test Methods | {
"journal_name": "ํ๊ตญ๋๋กํํ",
"publisher": null,
"pub_year": null,
"pub_month": null,
"volume": null,
"issue": null
} | [
"์ค๊ฒฝ๊ตฌ(๊ฐ์๋ํ๊ต); ๊น๋ํธ((์ฃผ)์ผ์ฐ์์ด์ ์จ); ํ์ฐฝ์ฐ(์ถฉ์ฃผ๋ํ๊ต)"
] | ํ ๋ชฉ๊ณตํ | null | kci_detailed_000165.xml | ||||
ART000860945 | oai_dc | Micro PAVER์๊ตญ๋ด ์ ์ฉ์ ์ํ ์ ์ ํ์ ๋ํ ์ฐ๊ตฌ | The Study On Customization for Domestic Application of Micro PAVER | {
"journal_name": "ํ๊ตญ๋๋กํํ",
"publisher": null,
"pub_year": null,
"pub_month": null,
"volume": null,
"issue": null
} | [
"์๋์(ํ๊ตญ๊ฑด์ค๊ธฐ์ ์ฐ๊ตฌ์); ๊ถ์์(ํ๊ตญ๊ฑด์ค๊ธฐ์ ์ฐ๊ตฌ์); ์์์ฐฌ(ํ์๋ํ๊ต)"
] | ํ ๋ชฉ๊ณตํ | null | kci_detailed_000165.xml | ||||
ART000860946 | oai_dc | ์์คํํธ ์ฝํฌ๋ฆฌํธ ํฌ์ฅ ๋ณํ๋ฅ ๊ณ ๋งค์ค ๋ฐฉ๋ฒ ๊ฐ์ ์ ๊ดํ ์ฐ๊ตฌ | Improvement of Field Installation Method for Asphalt Concrete Pavement Strain Gauge | {
"journal_name": "ํ๊ตญ๋๋กํํ",
"publisher": null,
"pub_year": null,
"pub_month": null,
"volume": null,
"issue": null
} | [
"์ด์ฌํ(ํ๊ตญ๋๋ก๊ณต์ฌ); ๊น์ง์(ํ๊ตญ๋๋ก๊ณต์ฌ); ๊น๋ํ(ํ๊ตญ๋๋ก๊ณต์ฌ); ์ด๊ดํธ(ํ๊ตญ๋๋ก๊ณต์ฌ)"
] | ํ ๋ชฉ๊ณตํ | null | kci_detailed_000165.xml | ||||
ART001760662 | oai_dc | ์ผ๋ฐ๊ตญ๋์ ๊ตํต์์ํน์ฑ์ ๊ดํ ์ฐ๊ตฌ | A Study of Traffic Noise Characteristics on the National Highways | {
"journal_name": "ํ๊ตญ๋๋กํํ",
"publisher": null,
"pub_year": null,
"pub_month": null,
"volume": null,
"issue": null
} | [
"์ํ์ฅ(ํ๊ตญ๊ฑด์ค๊ธฐ์ ์ฐ๊ตฌ์); ์๋์(ํ๊ตญ๊ฑด์ค๊ธฐ์ ์ฐ๊ตฌ์); ๋ฐฑ์ฒ ๋ฏผ(ํ๊ตญ๊ฑด์ค๊ธฐ์ ์ฐ๊ตฌ์); ๊ถ์์(ํ๊ตญ๊ฑด์ค๊ธฐ์ ์ฐ๊ตฌ์); ์ด์ฌ์ค(์ ๋ถ๋ํ๊ต)"
] | PURPOSES: This study presents the noise level and frequency characteristics investigated in the national highways with the consideration of various measuring conditions and/or methods.
METHODS : The noise levels on the asphalt concrete pavement(ACP) and the jointed plain concrete pavement(JPCP) of the national highway were measured and analysed with respect to three variables, i.e., pavement type, surface condition, and measurement distance. The PASS-By method is utilized for the noise measurement and then using CPB spectrum analysis method with 1/3 octave bandwidth, the noise levels and frequency characteristics were calculated for two-second periods before and after the peak noise.
RESULTS: Depending on the pavement type, the noise level was changed as the average noise levels are 73.3dB(A) and 78.3dB(A) for ACP and JPCP, respectively. With respect to the effect of surface condition, the average noise levels for crack H(high), M(medium), and L (low)sections are 77.4dB(A), 77.4dB(A), and 78.1dB(A), respectively. Regarding the measurement distance, 1.2meter difference in measuring location reduces 1.6dB(A) of noise level; the average noise levels at 5.3m and 7.5m from the centerline of outer lane are 72.8dB(A) and 71.2dB(A), respectively. It should be noted that the noise levels are slightly different as a function of vehicle speed and type. However, the overall trends for each case was similar. It was found that the domain frequency bands for ACP and JPCP were 400Hz ~2000Hz and 500Hz ~2000Hz, respectively.
CONCLUSIONS : Based on the analysis with the measured noise date from national highway, it was concluded that the noise level and frequency band vary depending on the various conditions. It was also found that some variables significantly affect the noise level while others do not. With further systematic investigation, the comprehensive noise characteristics on the national highway can be achieved. Using such database, it is possible to develop the fundamental noise reduction technology. | ํ ๋ชฉ๊ณตํ | null | kci_detailed_000165.xml | |||
ART001760667 | oai_dc | ํ์ฅ์ฌ์๊ณจ์ฌ๋ฅผ ์ฌ์ฉํ ํฌ์ฅ์ฉ ์ฝํฌ๋ฆฌํธ์ ๊ธฐ๋ณธ ๋ฌผ์ฑ์คํ | Evaluation of Concrete Material Properties for Pavement Using Job-site Processed Recycled Aggregates | {
"journal_name": "ํ๊ตญ๋๋กํํ",
"publisher": null,
"pub_year": null,
"pub_month": null,
"volume": null,
"issue": null
} | [
"์์ฑ์ฒ (ํ์ต๋ํ๊ต); ๊น๋จํธ(ํ๊ตญ๊ธฐ์ ๊ต์ก๋ํ๊ต)"
] | PURPOSES: This study was performed to investigate a feasibility of job-site use of recycled concrete aggregate exceeding 3% of absorption rate. Test variables are coarse aggregate types such as natural aggregate, job-site processed recycled aggregate, and recycled aggregate processed from the intermediate waste treatment company.
METHODS : First, aggregate properties such as gradation, specific gravity and absorption rate were determined. Next a basic series of mechanical properties of concrete was tested.
RESULTS : All strength test results such as compression, flexure and modulus were satisfied for the minimum requirements. Finally up to first 48 elapsed days the shrinkage strains of concretes made from both recycled aggregates (in case of volume-surface ratio of 300) appeared to be greater than 26% of the companion concretes made from natural aggregates.
CONCLUSIONS: Drying shrinkage result is ascribed to greater absorption rate and specific gravity of those specimens made from recycled aggregate. This may be reduced with an addition of admixtures. | ํ ๋ชฉ๊ณตํ | null | kci_detailed_000165.xml | |||
ART001760673 | oai_dc | ํด๋ฆฌ์ฐ๋ ํ ๋ฐ์ธ๋๋ฅผ ํ์ฉํ ์นํ๊ฒฝ ๋๋กํฌ์ฅ์ฉ ํผํฉ๋ฌผ ๊ฐ๋ฐ | Development of Eco-friendly Pavement Material using Polyurethane Binder | {
"journal_name": "ํ๊ตญ๋๋กํํ",
"publisher": null,
"pub_year": null,
"pub_month": null,
"volume": null,
"issue": null
} | [
"์ต์ง์(ํ๊ตญ๊ฑด์ค๊ธฐ์ ์ฐ๊ตฌ์); ์์์ค(ใํผ์ ์์ค R&Dํ ์ฐ๊ตฌ์); ๋ฐํฌ๋ฌธ(ํ๊ตญ๊ฑด์ค๊ธฐ์ ์ฐ๊ตฌ์); ๊นํ์ฐ(ํ๊ตญ๊ฑด์ค๊ธฐ์ ์ฐ๊ตฌ์)"
] | PURPOSES : The objectives of this study are to develop the eco-friendly pavement material using polyurethane binder and evaluate mechanical properties of the developed binder and concrete.
METHODS: The bending beam test was conducted to select the sample candidates of polyurethane binder based on the bending strength.
The characteristics of viscosity, curing time, and temperature change of sample binder was examined on different temperature conditions. The mechanical properties of polyurethane binder was estimated using the dynamic modulus testing. The indirect tensile strength test was conducted on polyurethane binder concrete with different gradation and binder content for evaluating the mechanical properties of concretes.
RESULTS : Based on the beading beam test, four different binder samples were prepared for estimate the mechanical properties. The viscosity of polyurethane binder tends to increase with increase of liquid temperature and the hardening phenomenon begins 10 to 15 minutes at room temperature after mixing the resin and hardener. It is observed that the dynamic modulus of binder increases as loading frequency increases and change of modulus is found to be the highest in the PU-2I binder type. The PU-2I binder concretes shows the largest value of indirect tensile strength and indirect tensile energy.
CONCLUSIONS: The use of polyurethane binder as pavement materials is capable of increasing the pavement performance and reducing the detrimental environmental effect during the highway construction. | ํ ๋ชฉ๊ณตํ | null | kci_detailed_000165.xml | |||
ART001760675 | oai_dc | Tobit ๋ชจํ์ ์ด์ฉํ ๊ฐ์ ๋๋ก ์ฌ๊ณ ์์ธ ๋ถ์ | Analysis of Accident Factors at Arterial Roads Using Tobit Model | {
"journal_name": "ํ๊ตญ๋๋กํํ",
"publisher": null,
"pub_year": null,
"pub_month": null,
"volume": null,
"issue": null
} | [
"๊น๊ฒฝํ(์ถฉ๋ถ๋ํ๊ต); ๋ฐ๋ณํธ(์ถฉ๋ถ๋ํ๊ต)"
] | PURPOSES: The intents of the study are to identify the accident factors and to demonstrate the potentials of tobit model as a tool to study the number of accidents on arterial roads segments.
METHODS: This paper uses a tobit regression as a methodology to analyze the factors affecting the number of accidents. In pursuing the above goal, this study gives particular attentions to analyzing the data of 2,446 accidents (1,610 in major arterial roads and 836 in minor arterial roads) occurred on arterial roads in 2007 to 2010.
RESULTS: First, 3 accident models which were classified by total arterial roads, major arterial roads and minor arterial roads, and were all statistically significant were developed. Second, the exclusive right-turn lane as common variable, and the number of accident, traffic volume,number of lanes, link length, rate of median, number of entrances, number of pedestrian crossings, number of curves, number of bus stops and exclusive left-turn as specific variables of the models were selected. Finally, the paired sample t-test could not be rejected the null hypotheses of three types of models.
CONCLUSIONS : Using data from vehicle accidents on arterial roads, the estimation results show that many factors related to roadway geometrics and traffic characteristics significantly affect to the number of accidents. | ํ ๋ชฉ๊ณตํ | null | kci_detailed_000165.xml | |||
ART001760679 | oai_dc | ํ๊ตญ ๋๋ก ์๋ณธ์ด ์ฐ์
์ ๋ฏธ์น ์ํฅ๊ณผ ์์ฐ์ฑ ๋ถ์ | Study on The Influence of Road Capital to Industry and Productivity Growth in South Korea | {
"journal_name": "ํ๊ตญ๋๋กํํ",
"publisher": null,
"pub_year": null,
"pub_month": null,
"volume": null,
"issue": null
} | [
"๊ตญ์ฐ๊ฐ(์์ธ์ฐ๊ตฌ์ ๊ตํต์์คํ
์ฐ๊ตฌ์ค)"
] | PURPOSES: This study is to suggest the Influence of road capital to industry and productivity growth in South Korea.
METHODS: Based on the literature review, The relevant policy questions addressed in this report are : cost reduction and Scale elasticities of road, effect of road capital stock on demand for labor, capital and materials, marginal effect of road, industry TFP growth decomposition.
RESULTS : The marginal benefits of the road capital at the industry level were calculated using the estimated cost elasticities. Demand for the road capital services varies across industries as do the marginal effects. The marginal benefits are positive for the principal industries. This suggests that for these industries the existing stock of road capital may be under supplied. The contribution of road capital to TFP growth is positive in principal industries. The main contribution of road capital is in the manufacturing industries ; the magnitudes of contribution varies among industries. These results indicate that growth in exogenous demand is most important contributor to TFP growth.
CONCLUSIONS : The road capital have a significant effect on employment, private capital and demand for materials inputs in all industries. At a given level of output, an increase in road capital lead to variety to demand for all inputs in all industries. | ํ ๋ชฉ๊ณตํ | null | kci_detailed_000165.xml | |||
ART001760665 | oai_dc | ํผ๋ง์์ ๋ฅผ ์ด์ฉํ ์ด๋ฐ์ธต ๋ง์์ฐ๊ธฐ์ฉ ๋ฐ์ด์ค ํด๋ฆฌ๋จธ ์ฝํฌ๋ฆฌํธ์ ์ญํ์ ํน์ฑ ํ๊ฐ | Evaluation of Mechanical Characteristics of Castor Oil Based Bio-Polymer Concretes for Ultra Thin Overlays | {
"journal_name": "ํ๊ตญ๋๋กํํ",
"publisher": null,
"pub_year": null,
"pub_month": null,
"volume": null,
"issue": null
} | [
"๋ฐํฌ๋ฌธ(ํ๊ตญ๊ฑด์ค๊ธฐ์ ์ฐ๊ตฌ์); ์ต์ง์(ํ๊ตญ๊ฑด์ค๊ธฐ์ ์ฐ๊ตฌ์); ๊นํ์ฐ(ํ๊ตญ๊ฑด์ค๊ธฐ์ ์ฐ๊ตฌ์); ์์์ค((์ฃผ)ํผ์ ์์ค); LEVAN PHUC(์ธ์ข
๋ํ๊ต)"
] | PURPOSES: The objective of this study is to evaluate the mechanical characteristics of castor oil based bio-polymer concrete for use of ultra thin overlays.
METHODS: To evaluate the mechanical properties of bio-polymer concrete, the various laboratory tests including compressive, tensile, and flexural strength, and elongation tests were conducted on bio-polymer concrete specimens in this study. The mechanical characteristics of biopolymer concretes were examined by changing the content of hardener and polymer binder to determine the optimum content for ultra-thin overlays. The bio-polymer concrete developed in this study was used for field trial test of the ultra-thin bridge deck pavement for verifying the workability and monitoring the long-term performance of materials.
RESULTS : Test results showed that tensile and the flexural strength of bio-polymer concretes increase and the elongation of bio-polymer concrete decreases with increase of binder content. A field adhesive strength tests conducted on bridge deck pavement indicates the biopolymer concrete has more than 2MPa of adhesive strength satisfy with the design criteria.
CONCLUSIONS: The bio-polymer concrete with more than 20% content of castor oil was developed for ultra-thin overlays in this study. It is found from this study that the 35% of hardener content is most appropriate for maintaining the strength characteristics and flexibility. | ํ ๋ชฉ๊ณตํ | null | kci_detailed_000165.xml | |||
ART001760668 | oai_dc | ์ ํ์์คํํธ ๋ฐ์ธ๋์ ๊ณจ์ฌ ํน์ฑ์ด ์นฉ์ฐ ํฌ์ฅ์ ๊ณต์ฉ์ฑ์ ๋ฏธ์น๋ ์ํฅ ์ฐ๊ตฌ | Effect of Physical Characteristics of Emulsion Asphalt and Aggregate on Performance of Chip Seal Pavements | {
"journal_name": "ํ๊ตญ๋๋กํํ",
"publisher": null,
"pub_year": null,
"pub_month": null,
"volume": null,
"issue": null
} | [
"ํ๊ธฐ์ค(์ธ์ข
๋ํ๊ต); ๊นํ์ฐ(ํ๊ตญ๊ฑด์ค๊ธฐ์ ์ฐ๊ตฌ์); ์ดํ์ข
(์ธ์ข
๋ํ๊ต); ๋ฐํฌ๋ฌธ(ํ๊ตญ๊ฑด์ค๊ธฐ์ ์ฐ๊ตฌ์); ํจ์๋ฏผ(ํ๊ตญ๊ฑด์ค๊ธฐ์ ์ฐ๊ตฌ์)"
] | PURPOSES : The objective of this study is to evaluate the effect of physical characteristics of emulsion asphalt and aggregate on performance of chip seal pavements.
METHODS: In order to evaluate the performance of chip seal materials, the sweep tests and Vialit Plate Shock tests were conducted on the mixtures with five emulsion asphalt binders and three aggregate types. The sweep tests was intended to investigate the change of bonding properties between emulsion asphalt and aggregate with curing time. The Vialit Plate Shock test was used to evaluate the bonding properties of chip seal materials at low temperatures.
RESULTS: Results from sweep tests showed that polymer modified emulsion asphalt can reduce the curing time by 1.5 hour comparing with typical emulsion asphalt. It is also found that the Flakiness Index of aggregates and absorption rate of binder are the major factors affecting the bonding properties of chip seal materials. The Vialit Plate Shock test results showed that the average aggregate loss of CRS-2 is ten times higher than CRS-2P No.2 indicating that the use of polymer additives in emulsion asphalt can improve the performance of chip seal materials in low temperature region.
CONCLUSIONS : The use of polymer in emulsion asphalt can decrease the curing time of chip seal materials and increase the bonding properties between aggregates and asphalt binder. It is also concluded that the lower Flakiness Index and absorption rate of aggregates can improve the performance of chip seal pavement. | ํ ๋ชฉ๊ณตํ | null | kci_detailed_000165.xml | |||
ART001760669 | oai_dc | ํ๋น๋๊ณจ์ฌ๋ฅผ ์ฌ์ฉํ๋ ์์คํํธ ์ฝํฌ๋ฆฌํธ์ ๋ฌผ๋ฆฌ์ ์ฑ์ง | Physical Properties of Asphalt Concrete Using Wasted Vinyl Aggregates | {
"journal_name": "ํ๊ตญ๋๋กํํ",
"publisher": null,
"pub_year": null,
"pub_month": null,
"volume": null,
"issue": null
} | [
"๊น๋ณ์ค(์ธํ๋ํ๊ต); ๊น์์ง(ํ๊ตญ๊ฑด์ค๊ธฐ์ ์ฐ๊ตฌ์); ๋ฐ์ฃผ์(์ธํ๋ํ๊ต); ์ ์งํ(์ธํ๋ํ๊ต)"
] | PURPOSES : In this study, various laboratory tests were performed to investigate basic physical properties of the asphalt concrete which uses wasted vinyl aggregates.
METHODS : The thermal conductivity, ultrasonic velocity, Marshall stability, flow, indirect tensile strength were measured according to binder content and wasted vinyl aggregate content. An experimental construction was performed to verify construct ability of the asphalt pavement using the wasted vinyl aggregates.
RESULTS : The thermal conductivity and ultrasonic velocity decreased showing insulation effect by mixing more wasted vinyl aggregate,whereas stability and flow increased. The void ratio shows similar value regardless of the mixing ratio. The highest indirect tensile strength was measured at 2.5% of wasted vinyl aggregate content. The construct ability was verified by observing the process of mixing, placing, and compaction and the state of the pavement surface.
CONCLUSIONS : The basic properties and construct ability of the asphalt concrete using the wasted vinyl aggregates were verified. The temperature according to pavement depth will be measured to verify the insulation effect of the wasted vinyl aggregates. In addition, amount of snowfall, snowmelt area, and ice adhesion strength will be analyzed quantitively. | ํ ๋ชฉ๊ณตํ | null | kci_detailed_000165.xml | |||
ART001760666 | oai_dc | AASHTO86 ์ ์ฐฉ์ ์ฝํฌ๋ฆฌํธ ๋ง์์ฐ๊ธฐ ์ค๊ณ๋ฒ์ ํ๋น์ฑ ์ฐ๊ตฌ | Feasibility Study of AASHTO86 Design Method for Bonded Concrete Overlay | {
"journal_name": "ํ๊ตญ๋๋กํํ",
"publisher": null,
"pub_year": null,
"pub_month": null,
"volume": null,
"issue": null
} | [
"๋ฐ์ข
์(๊ฐ๋ฆ์์ฃผ๋ํ๊ต); ๊น์๊ท(๊ฐ๋ฆ์์ฃผ๋ํ๊ต); ํ์นํ(ํ๊ตญ๋๋ก๊ณต์ฌ ๋๋ก๊ตํต์ฐ๊ตฌ์); ์ด์น์ฐ(๊ฐ๋ฆ์์ฃผ๋ํ๊ต)"
] | PURPOSES: This study aimed to evaluate the feasibility of AASHTO86 design method for Bonded Concrete Overlay.
METHODS: The Feasibility of AASHTO86 design method for Bonded Concrete Overlay is investigated based on the following study :i) Sensitivity analysis of designed service life of Bonded Concrete Overlay by major design input for AASHTO86 guide. ii) Comparison of actual Bonded Concrete Overlay life and predicted Bonded Concrete Overlay life by AASHTO86. iii) Finding the stress component influence the potential distress of Bonded Concrete Overlay based on 3-d FEM analysis. iv) Exploring the limitation of AASHTO86 in the aspect of design input.
RESULTS: Sensitivity analysis showed that the condition of existing pavement significantly on the Bonded Concrete Overlay life. Also the overlay thickness affect the Bonded Concrete Overlay life. The comparison of actual Bonded Concrete Overlay life and predicted Bonded Concrete Overlay life showed relatively good agreement when the early distress sections are excluded in comparison. Bonding stress occurred at the interface may be larger than the bond strength used in the specification of Bonded Concrete Overlay construction.
CONCLUSIONS : Bonded Concrete Overlay life predicted by the AASHTO86 may not be reliable. Number of points to improve the reliability in the design of Bonded Concrete Overlay are suggested in this study. | ํ ๋ชฉ๊ณตํ | null | kci_detailed_000165.xml | |||
ART001760677 | oai_dc | ํธ์ต๊ณผ ๋น์ฉ ๋ถ์์ ํตํ ์ํ์ฐจ์ ์ฉ์งํ์ฐจ๋ ๋์
์ ๊ดํ ์ฐ๊ตฌ | A Study on Building of Underpass for Small Vehicles by Benefit and Cost Analysis | {
"journal_name": "ํ๊ตญ๋๋กํํ",
"publisher": null,
"pub_year": null,
"pub_month": null,
"volume": null,
"issue": null
} | [
"์ด์์ฐ(๋๊ตฌ๋ํ๊ต)"
] | PURPOSES: This study is to analysis for benefit and construction cost in underpass for small vehicles.
METHODS: The study was performed using the traffic software VISSIM 5.20 for analysis on a variety of traffic conditions and analysed of benefits of changes through analysis of travel speed and travel time after modeling of existing underpass and small vehicle underpass.
RESULTS: Results of this study, the benefits will be reduced by the introduction underpass for small vehicles were analyzed because heavy vehicles use the intersection above the underpass. However, it was required economic analysis considering both the benefits reduction and the construction costs reduction because it has the effect of reducing the construction cost. Showed that the difference in benefit changes depending on the v/c and heavy vehicles ratio and construction cost was difference by types of underpass. As a result of performing economic analysis with total benefits and construction cost, it was analyzed to be economical in underpass over a certain size.
CONCLUSIONS : The result of this study are expected to be able to contribute to reviewing for feasibility due to the small vehicles underpass introduction and economic analysis. The study is case study to the underpass in Daegu. Therefore, the future requires the calculation of benefits reflect a wider range of traffic conditions and the economic analysis to construction cost calculation for various types of grad separation facilities. | ํ ๋ชฉ๊ณตํ | null | kci_detailed_000165.xml | |||
ART001760670 | oai_dc | ์ํ๊ณจ์ฌ๋ฅผ ํฌํจํ ์
์์ฌ๋ฃ์ ํน์ฑ์ ๊ดํ ์คํ์ ์ฐ๊ตฌ | Experimental Study on Characteristics of Granular Materials Containing Recycled Aggregates | {
"journal_name": "ํ๊ตญ๋๋กํํ",
"publisher": null,
"pub_year": null,
"pub_month": null,
"volume": null,
"issue": null
} | [
"ํ์์ฐ(๋์๋ํ๊ต); ๊ถ๊ธฐ์ฒ (๋์๋ํ๊ต); ํ์์ฑ(๋์๋ํ๊ต)"
] | PURPOSES : In Korea, most designs of pavement had been mainly performed by considering CBR of granular materials before KPRP(Korea Pavement Research Program) and 86 AASHTO design method were introduced. Since then, the trend of the pavement designs gradually have moved to using mechanical characteristics throughout the resilient modulus based on the test results up to recently. In this study,we should like to research the mechanical characteristics of paving materials containing Recycled aggregates through the cyclic loading triaxial compression tests.
METHODS : The kinds of materials were tested; coarse grained subbase materials, refining aggregates base materials and recycled aggregates.
RESULTS: The present study aims to figure out the resilient modulus of paving materials containing Recycled aggregates through the cyclic loading triaxial compression tests.
CONCLUSIONS: The test results revealed that the engineering properties of the recycled aggregates were more excellent than the those of others. | ํ ๋ชฉ๊ณตํ | null | kci_detailed_000165.xml | |||
ART001760676 | oai_dc | ๊ณ ์๋๋ก์์ ๋ฐ์ํ 2์ฐจ ๊ตํต์ฌ๊ณ ์ ํน์ฑ๋ถ์ | The Characteristics of Secondary Crashes Occurred on Expressways in Korea | {
"journal_name": "ํ๊ตญ๋๋กํํ",
"publisher": null,
"pub_year": null,
"pub_month": null,
"volume": null,
"issue": null
} | [
"์ด์ง์(์์ธ์๋ฆฝ๋ํ๊ต); ๊น๋๊ฒฝ(์์ธ์๋ฆฝ๋ํ๊ต); ์ด์ ํ(ํ๊ตญ๊ฑด์ค๊ธฐ์ ์ฐ๊ตฌ์)"
] | PURPOSES: This study aims to draw differences between primary and secondary crashes by comparing crash characteristics and to identify the unique characteristics of secondary crashes for making better effective countermeasures to reduce secondary crashes.
METHODS: The characteristics of secondary crashes were compared to those of primary crashes through a two sample proportional test (ztest).
RESULTS: The results showed that vehicle-to-vehicle crashes and vehicle-to-person crashes are dominant crash types in secondary crashes.
Compared to primary crashes, secondary crashes were likely to occur during nighttime. With respect to season and weather, the proportion of secondary crashes occurred during winter and in snowy weather is relatively higher than that of primary crashes. The main causes of primary crashes were found to be drowsiness, speeding, and exaggerated steering control, whereas main factors affecting the occurrence of secondary crashes were negligence of keeping eyes forward and no keeping a safe distance as expected.
CONCLUSIONS: The characteristics affecting the occurrence of secondary crashes are different from those of primary crashes, indicating that proper countermeasures should be established to prevent the occurrence of secondary crashes on highways. | ํ ๋ชฉ๊ณตํ | null | kci_detailed_000165.xml | |||
ART001760672 | oai_dc | ๋๋กํ๋ถ ๋งค์ค๊ด์ ๋งค์ค์ฌ๋ ๋ฐ ๋๋ฉ์ฐ๊ธฐ ์ฌ๋ฃ๊ฐ ํฌ์ฅ์ฒด์ ๋ฏธ์น๋ ์ํฅ ํ๊ฐ | Evaluation on the Effect of Depth Buried Pipeline and Refilling Materials on Pavement Performance | {
"journal_name": "ํ๊ตญ๋๋กํํ",
"publisher": null,
"pub_year": null,
"pub_month": null,
"volume": null,
"issue": null
} | [
"๋ฐฑ์ฒ ๋ฏผ(ํ๊ตญ๊ฑด์ค๊ธฐ์ ์ฐ๊ตฌ์); ๊น์๋ฏผ(ํ๊ตญ๊ฑด์ค๊ธฐ์ ์ฐ๊ตฌ์ ๋๋ก์์ค์ฐ๊ตฌ์ค); ๊ถ์์(ํ๊ตญ๊ฑด์ค๊ธฐ์ ์ฐ๊ตฌ์); ํฉ์ฑ๋(ํ๊ตญ๊ฑด์ค๊ธฐ์ ์ฐ๊ตฌ์); ๊น์ง๋ง(ํ๊ตญ๊ฑด์ค๊ธฐ์ ์ฐ๊ตฌ์)"
] | PURPOSES: Compared to the criteria from advanced countries, Korea has conservative criteria for the buried depth of pipeline (about 30~70cm deeper) causing the waste of cost and time. Therefore, this research investigated the effect of various buried depths of pipeline on pavement performance in order to modify the criteria to be safe but economical. In addition, a recycled aggregate which is effective in economical and environmental aspect was evaluated to be used as a refilling material.
METHODS : In this study, total 10 pilot sections which are composed with various combinations of pavement structure, buried depth of pipeline, and refilling material were constructed and the telecom cable was utilized as a buried pipeline. During construction, LFWD (Light Falling Weight Deflectometer) tests were conducted on each layer to measure the structural capacity of underlying layers. After the construction is completed, FWD (Falling Weight Deflectometer) tests and moving load tests were performed on top of the asphalt pavement surface.
RESULTS : It was found from the LFWD and FWD test results that as the buried depth decrease, the deflections in subbase and surface layer were increased by 30% and 5~10%, respectively, but the deflection in base layer remained the same. In the moving load test, the longitudinal maximum strain was increased by 30% for 120mm of buried depth case and 5% for 100mm of buried depth case. Regarding the effect of refilling material, it was observed that the deflections in subbase and surface layer were 10% lager in recycled aggregate compared to the sand material.
CONCLUSIONS : Based on the testing results, it was found that the change in buried depth and refiliing material would not significantly affect the pavement performance. However, it is noted that the final conclusion should be made based on an intensive structural analysis for the pavement under realistic conditions (i.e., repeated loading and environmental loading) along with the field test results. | ํ ๋ชฉ๊ณตํ | null | kci_detailed_000165.xml | |||
ART001760671 | oai_dc | ํ์ํฌ์ง ํ์ฑ ๊ณ ๋ก์ฌ๋๊ทธ ๋ชจ๋ฅดํ๋ฅด์ ๊ธฐ์ดํน์ฑ์ ๊ดํ ์ฐ๊ตฌ | Fundamental Characteristics of Carbon-Capturing and Sequestering Activated Blast-Furnace Slag Mortar | {
"journal_name": "ํ๊ตญ๋๋กํํ",
"publisher": null,
"pub_year": null,
"pub_month": null,
"volume": null,
"issue": null
} | [
"์ฅ๋ด์ง(๊ฐ์๋ํ๊ต); ๊น์น์(๊ฐ์๋ํ๊ต); ์ก์งํ(์ธ์ข
๋ํ๊ต); ๋ฐํฌ๋ฌธ(ํ๊ตญ๊ฑด์ค๊ธฐ์ ์ฐ๊ตฌ์); ์ฃผ๋ฏผ๊ด(๊ฐ์๋ํ๊ต); ๋ฐ์ฒ ์ฐ(๊ฐ์๋ํ๊ต)"
] | PURPOSES : To investigate the fundamental characteristics of blast-furnace slag mortar that was hardened with activating chemicals to capture and sequester carbon dioxide.
METHODS : Various mix proportions were considered to find an appropriate stregnth development in regards with various dosages of activating chemicals, calcium hydroxides and sodium silicates, and curing conditions, air-dried, wet and underwater conditions. Flow characteristics was investigated and setting time of the mortar was measured. At different ages of 3, 7 and 28days, strength development was investigated for all the mix variables. At each age, samples were analyzed with XRD.
RESULTS : The measured flow values showed the mortar lost its flowability as the activating chemicals amount increased in the scale of mole concentration. The setting time of the mortar was relatively shorter than OPC mortar but the initial curing condition was important, such as temperature. The amount of activating chemicals was found not to be critical in the sense of setting time. The strength increased with the increased amount of chemicals. The XRD analysis results showed that portlandite peaks reduced and clacite increased as the age increased.
This may mean the Ca(OH)2 keeps absorbing CO2 in the air during curing period.
CONCLUSIONS: The carbon capturing and sequestering activated blast-furnace slag mortar showed successful strength gain to be used for road system materials and its carbon absorbing property was verified though XRD analysis. | ํ ๋ชฉ๊ณตํ | null | kci_detailed_000165.xml | |||
ART001760664 | oai_dc | ๋๋ก ์ต์ค์ฒด ๊ฐ๋ฐ์ ์ํ ํ์๋๋
ธํ๋ธ-์๋ฉํธ ๋ณตํฉ์ฒด ํน์ฑ์ ๊ดํ ์คํ์ ์ฐ๊ตฌ | A Feasibility Study on Developing Snow Melting Systems using CNT-Cement Composite | {
"journal_name": "ํ๊ตญ๋๋กํํ",
"publisher": null,
"pub_year": null,
"pub_month": null,
"volume": null,
"issue": null
} | [
"ํ์ง๋
(ํ๊ตญ๊ฑด์ค๊ธฐ์ ์ฐ๊ตฌ์); ๋ฐ๋ฒ์ง(ํ๊ตญ๊ฑด์ค๊ธฐ์ ์ฐ๊ตฌ์); ๊นํํ(ํ๊ตญ๊ฑด์ค๊ธฐ์ ์ฐ๊ตฌ์)"
] | PURPOSES : This study aims to review the possibility of developing a road snow-melting system that can prevent slip accidents by maintaining a constant temperature of the winter roads and enhance performance of structures, including improvement of compressive strength by mixing carbon nanotube (hereafter referred to as CNT) with cement paste, the basic material.
METHODS: To achieve the above purpose, an experiment was conducted by mixing power-type CNT and wrap-type CNT up to cement paste formulation by weight of 0.0wt%~4.1wt% in accordance with โKS L ISO 679(of cement strength test method)โ, and compressive strength was measured at 28 days of curing. In addition, the volume resistivity of the specimen was measured to test thermal and electrical characteristics, and the rate of temperature changes in specimen surface by power consumption was measured by passing electricity through the cross-sections of the specimen. Meanwhile, the criteria for checking the performance as a road snow-melting system was determined as volume resistivity of 100ฮฉยทcm or less.
RESULTS : A comparative analysis between specimen with 0wt% CNT content in plain status and specimen containing various types of CNTs was carried out. From its results, it was found that compressive strength increased approximately 19%, showing the highest rate when 0.2wt% of wrap-type CNT was contained, but volume resistivity of 100ฮฉยทcm or less appeared only in specimens containing more than 0.2wt% CNT. In addition, it was observed that the surface temperature increased by 4.62โ per minute on average in specimens containing 3.2wt% CNT.
CONCLUSIONS : In this study, CNT was examined as an underlying material for a road snow-melting system, and the possibility of developing the road now-melting system was reviewed by conducting various experiments using CNT-Cement composites. From the experimental results, the specimens were found to have a superior performance when compared to the existing road snow-melting systems that place the heat transfer medium such as copper on the road. However, satisfactory strength performance were not obtained from the specimen containing CNT(2.0% or more) that functions as a heating element, which leads to the need for reviewing methods to increase the strength by using plasticizer or admixture. | ํ ๋ชฉ๊ณตํ | null | kci_detailed_000165.xml | |||
ART001760674 | oai_dc | ๊ตญ๋ด ๋กํฐ๋ฆฌ์ ์ฐ๋ น๋๋ณ ์ฌ๊ณ ๋ชจํ | Accident Models of Rotary by Age Group in Korea | {
"journal_name": "ํ๊ตญ๋๋กํํ",
"publisher": null,
"pub_year": null,
"pub_month": null,
"volume": null,
"issue": null
} | [
"๋ฐ๋ฏผ๊ท(์ถฉ๋ถ๋ํ๊ต); ๋ฐ๋ณํธ(์ถฉ๋ถ๋ํ๊ต)"
] | PURPOSES: This study deals with the traffic accidents of rotary in Korea. The objective of this study is to develop the accident models by age group based on the various data of rotaries.
METHODS: In pursuing the above, this study gives particular attentions to classifying the accident data of 17 rotaries by age, collecting the data of geometric structure, traffic volume and others, and developing the models using SPSS 17.0 and EXCEL.
RESULTS : First, 3 multiple linear regression models which were all statistically significant were developed. The value of model of under 30-49 age group were, however, evaluated to be 0.688 and be less than those of other models. Second, the most powerful variables were analyzed to be traffic volume in the model of under 30 age group, circulatory roadway width in the model of 30-49 age group, and the number of approach lane in the model of above 50 age group. Finally, the test results of accident models using RMSE were all evaluated to be fitted to the given data.
CONCLUSIONS : This study propose install streetlights, speed humps and widen Circulatory as effective improvements for reduction of accident in rotary. | ํ ๋ชฉ๊ณตํ | null | kci_detailed_000165.xml | |||
ART001760678 | oai_dc | ๋ฏธ์์ ์๋ฎฌ๋ ์ด์
์ ์ด์ฉํ ์ค์๋ฒ์ค์ ์ฉ์ฐจ๋ก ํจ๊ณผ๋ถ์ | Effectiveness Analysis of Exclusive Median Bus Lane that Uses Microsimulation | {
"journal_name": "ํ๊ตญ๋๋กํํ",
"publisher": null,
"pub_year": null,
"pub_month": null,
"volume": null,
"issue": null
} | [
"๊น๋ช
์(ํ๋ฐญ๋ํ๊ต)"
] | PURPOSES : In this study, the effects of when median exclusive bus lanes were applied to Daejeon trunk road (Wolpyeng crossway~Seodaejeon crossway, 6.3km) and (Daeduck Bridge 4~Kyeryong 4, 2.6km) by Microscopic Simulation VISSIM (5.0) was studied. The median exclusive bus lanes are one of the measures of transportation system manage techniques that can especially improve the efficiency of public transportation facilities.
METHODS: According to the analysis of VISSIM on the Gyerong mainroad and Daedeok mainroad, when the median exclusive bus lanes were applied unlike when the roadside bus-only lanes were applied, the average travel speed of vehicles decreased but the average delay time and travel time increased. This arised from the changes in the geometric structure of the road which occurred the reduction of vehicle lane in the center of the road.
RESULTS : In the case of bus, on the other hand, the average travel speed increased but the average delay time and travel time decreased.
This is because the problems such as illegal parking and stopping, secondary road in out vehicle, and conflict of intersection right turn that roadside bus-only lanes occurred was solved.
CONCLUSIONS : Although the introduction of median exclusive bus lanes will have a negative effect on general traffic flow due to the aggravation of travel, decrease of passenger car usage will lead to decrease of traffic volume. Therefore, smooth vehicle travel is expected. | ํ ๋ชฉ๊ณตํ | null | kci_detailed_000165.xml | |||
ART001760663 | oai_dc | ๋งค์ค์ฉ ์ ๊ธฐ ๋ฐ์ด ๋งค์์ ์ต์ค ํจ๊ณผ์ ๋ํ ํ์ฅ ์ ์ฉ์ฑ ์ฐ๊ตฌ | A Study on Field Applicability of Underground Electric Heating Mesh | {
"journal_name": "ํ๊ตญ๋๋กํํ",
"publisher": null,
"pub_year": null,
"pub_month": null,
"volume": null,
"issue": null
} | [
"์์์ฐฌ(ํ์๋ํ๊ต); ์๋ณ์(์ธ์ฒ๊ตญ์ ๊ณตํญ๊ณต์ฌ); ์ก์ค๊ณค(์ธ์ฒ๊ตญ์ ๊ณตํญ๊ณต์ฌ); ์กฐ๋จํ(์ธ์ฒ๊ตญ์ ๊ณตํญ๊ณต์ฌ)"
] | PURPOSES : This study aims to investigate the snow-melt effects of an underground electric heater's snow-melt system via a field performance test, for evaluating the suitability of the system for use on a concrete pavement. The study also investigates the effectiveness of dynamic measures for clearing snow after snowfall events.
METHODS : In order to check the field applicability, in November 2010, specimens were prepared from materials used for constructing concrete pavements, and underground electric heating meshes (HOT-mesh) were buried at depths of 50 mm and 100 mm at the site of the Incheon International Airport Construction Research Institute. Further, an automatic heating control system, including a motion sensor and pavement-temperature-controlled sensor, were installed at the site; the former sensor was intended for determining snow-melt effects of the heating control system for different snowfall intensities. Pavement snow-melt effects on snowy days from December 2010 to January 2011were examined by managing the electric heating meshes and the heating control system. In addition, data on pavement temperature changes resulting from the use of the heating meshes and heating control system and on the dependence of the correlation between the outdoor air temperature and the time taken for the required temperature rise on the depth of the heating meshes were collected and analyzed.
RESULTS: The effects of the heating control system's preheat temperature and the hot meshes buried at depths of 50 mm and 100 mm on the melting of snow for snowfalls of different intensities have been verified. From the study of the time taken for the specimen's surface temperature to increase from the preheat temperature (0โ) to the reference temperature (5~8โ) for different snowfall intensities, the correlation between the burial depth and outdoor air temperature has been determined to be as follows: Time=15.10+1.141Depth-6.465Temp CONCLUSIONS : The following measures are suggested. For the effective use of the electric heating mesh, it should be located under a slab it may be put to practical use by positioning it under a slab. From the management aspect, the heating control system should be adjusted according to weather conditions, that is, the snowfall intensity. | ํ ๋ชฉ๊ณตํ | null | kci_detailed_000165.xml | |||
ART001760661 | oai_dc | ๊ตญ๋ ์์คํํธ ํฌ์ฅ์ NHPCI(National Highway Pavement Condition Index)๋ฅผ ํ์ฉํ ๋ณด์๊ณต๋ฒ๊ทธ๋ฃน ๊ฒฐ์ ์ ๊ดํ ์ฐ๊ตฌ | A Study for Determining the Rehabilitation Method Group using NHPCI on Asphalt Concrete Pavement of National Highway | {
"journal_name": "ํ๊ตญ๋๋กํํ",
"publisher": null,
"pub_year": null,
"pub_month": null,
"volume": null,
"issue": null
} | [
"์ํ์ฅ(ํ๊ตญ๊ฑด์ค๊ธฐ์ ์ฐ๊ตฌ์); ๊ถ์์(ํ๊ตญ๊ฑด์ค๊ธฐ์ ์ฐ๊ตฌ์); ์ด์ฌ์ค(์ ๋ถ๋ํ๊ต); ๋ฐฑ์ฒ ๋ฏผ(ํ๊ตญ๊ฑด์ค๊ธฐ์ ์ฐ๊ตฌ์); ์์ฌ๊ท(ํ๊ตญ๊ฑด์ค๊ธฐ์ ์ฐ๊ตฌ์); ์ ํ์ง(๊ตญํ ๊ตํต๋ถ)"
] | PURPOSES : The PMS(Pavement Management System) has been utilized in order to efficiently allocate the limited budget for the maintenance of national highway system. In the PMS of national highway, surface pavement condition is evaluated by using the VI (Visual Index). However, the VI is determined only by considering the cracking rate (%) and rut depth (mm), which is not reflecting the IRI (International Roughness Index) that is known as an important factor of pavement performance. In this study, the NHPCI (National Highway Pavement Condition Index) which includes the cracking rate (%), rut depth (mm), and IRI (m/km) is suggested for determining the rehabilitation methods group.
METHODS: First, the rehabilitation methods performed between 2008 and 2010 on the national highway is classified and then, NHPCI is determined for each rehabilitation method. Next, the NHPCI for each rehabilitation method is grouped through the interval estimation of the population mean and T-test analysis.
RESULTS: According to NHPCI range, the rehabilitation methods are divided into four categories: Not Required, Preventive Maintenance,Overlay Treatment (with or without cutting), and Full-scale Treatment (i.e., reconstruction).
CONCLUSIONS : Based on this study, it is recommended that the appropriate NHPCI range should be determined through the combination of the rehabilitation categories and Decision Procedure of Pavement Distress Condition Visual Index. | ํ ๋ชฉ๊ณตํ | null | kci_detailed_000165.xml | |||
ART001652541 | oai_dc | Micro Simulation์ ํ์ฉํ ๋์๋ถ ๋จ์์
์ฒด์์ค ๋ถํฉ๋ฅ ๊ตฌ๊ฐ๊ฐ๊ฒฉ์ ๊ดํ ์ค์ฆ์ฐ๊ตฌ | Empirical Study of Simple Grade Facilities Gap Utilizing Micro Simulation Analysis | {
"journal_name": "ํ๊ตญ๋๋กํํ",
"publisher": null,
"pub_year": null,
"pub_month": null,
"volume": null,
"issue": null
} | [
"๊น์์ผ(์ฐํ์ข
ํฉ๊ธฐ์ (์ฃผ)); ๋
ธ์ ํ(ํ์๋ํ๊ต); ๊นํํธ(์ฑ๊ท ๊ด๋ํ๊ต); ๋ฐ์คํ(๊ตํต์์ ๊ณต๋จ)"
] | ๊ฐ๋ก ๋ฐ ๊ต์ฐจ๋ก์ ์ค์น๋ ๋จ์์
์ฒด์์ค์ ํํ ๋ถ์๊ธฐ๋ฒ์ ์์ค์ ์ด์ฉํ๋ ์ฃผ๊ตํต๋ฅ๋ฅผ ๋ถ์๋์์ ํฌํจ์ํค์ง ์๊ณ ์์ด๋ถํฉ๋ฆฌํ ๋๋ก ๋ฐ ์ ํธ์ด์์ ์ ๋ํ์ฌ ์๊ฐ๋ฆผํ์, ๋ณ๋ชฉํ์๊ณผ ๊ฐ์ ๋๋ก์ ํผ์ก์ ์ผ๊ธฐํ๋ค. ์ด๋ฌํ ์ฌ๊ฑด์๋ ๋ถ๊ตฌํ๊ณ ๋จ์์
์ฒด์์ค์ ์ด์ฉํ๋ ๊ตํต๋ฅ ๋ถ์๊ธฐ๋ฒ์ ์ฐ๊ตฌ๊ฐ ๊ฑฐ์ ์ํ๋ ๋ฐ ์๋ค. ๋ํ ๊ฐ๋ต์ ์ผ๋ก ์ ์๋์ด ์๋ ์ค์ ๊ธฐ์ค ์ญ์ ์ฌ๋ฌ ๊ฐ์ง ๋๋ก ๋ฐ ๊ตํต์กฐ๊ฑด์ ๋ฐ์ํ์ง ๋ชปํ๊ณ ์๋ ์ค์ ์ผ๋ก, ๋จ์์
์ฒด์์ค์ด ํฌํจ๋ ๊ต์ฐจ๋ก๋ถ์ ์ ์ง์ฒด๋๊ฐ ๊ณผ์ ์ถ์ ๋๋ ๊ฒฝํฅ์ด ์๋ค. ๊ทธ๋ฌ๋ฏ๋ก ๋ณธ ์ฐ๊ตฌ๋ ๋์๋ด ์
์ฒด์์ค์ ํจ๊ณผ๋ฅผ ํ์
ํ๊ธฐ ์ํ ์ ํ๊ณผ์ ์ผ๋ก์ ๋์์์ค์ ํจ๊ณผ๋ฅผ ํ์
ํ ์ ์๋๋ก์
์ฒด์์ค์ ๋ถ์๊ธฐ๋ฒ์ ๊ฐ๋ฐํ๊ณ ๋ถ์๊ต์ฐจ์ ์ ์ ์ ๊ฐ๊ฒฉ์ ์์ฉํ๋๋ฐ ๊ทธ ๋ชฉ์ ์ด ์๋ค. ๋ณธ ์ฐ๊ตฌ๋ ๋ค์๊ณผ ๊ฐ์ด ์ํํ์๋ค. (1)๊ธฐ์กด ๋ถ์๊ธฐ๋ฒ์ ๋ฌธ์ ์ ์ ๊ธฐ, (2) ์๋ก์ด ๋ถ์๊ธฐ๋ฒ์ ์ ๋ฆฝ, (3) ์ฌ๋ก์ง์ญ์ ์ ์ฉ ๋ฐ ๋น๊ต๊ฒ์ , (4) ๋ถํฉ๋ฅ๊ตฌ๊ฐ์ ์ ์ ๊ฐ๊ฒฉ์ ๋ํ ๋ฏผ๊ฐ๋ ๋ถ์์ ์ํํ๋ค. ์ฐ๊ตฌ๊ฒฐ๊ณผ, ๋ณธ ์ฐ๊ตฌ์์ ์ ์ํ ๋ถ์๊ธฐ๋ฒ์ ๊ธฐ์กด ๋ถ์๊ธฐ๋ฒ์ ๋ชจํธํ ๋ถ๋ถ์ ๋ช
ํํ ํ๊ณ ํฉ๋ฆฌ์ ์ธ๊ฒฐ๊ณผ๋ฅผ ์ถ์ ํ ์ ์์๋ค. ๋ํ ๊ทธ ๋ถ์๊ธฐ๋ฒ์ ์์ฉํ์ฌ ๋ถํฉ๋ฅ๊ตฌ๊ฐ์ ๋ํ ์ ์ ๊ฐ๊ฒฉ์ ์ถ์ ํ ๊ฒฐ๊ณผ, ๋ณธ์ ์์๋ 65m, ์ธก๋์์๋ 45m๋ก ๋ํ๋ ์ต์ํ ๊ทธ ์ด์์ ์์น์ ์ ์์ง์ ์ ์ค์นํ๋ ๊ฒ์ด ํ๋นํ๋ค๊ณ ํ๋จ๋๋ค. ๋ณธ ์ฐ๊ตฌ์ ์ํ์ผ๋ก ์ป์ด์ง๋๊ฐ์น๋ ๋ค์๊ณผ ๊ฐ๋ค. (1) ๋นํด ์์ค์ ๋ํ ์ ํ์ฐ๊ตฌ ๋๋ ๋ถ์๋ฐฉ๋ฒ์ด ์์์ผ๋ฏ๋ก ๋์์์ค๋ฌผ๋ก ์ธํ ํ๊ธํจ๊ณผ๋ฅผ ํ์
ํ ์ ์๋ค. (2) ๋ณธ ์ฐ๊ตฌ์ ๋ถ์๊ธฐ๋ฒ์ ๊ธฐ์กด ๊ต์ฐจ๋ก์ ๋ถ์๋ฐฉ๋ฒ์ ์ฐจ์ฉํจ์ผ๋ก์จ ์๋ก์ด ๋ถ์๋ฐฉ๋ฒ์ ์์งํ์ง ์์๋ ์ฉ์ดํ ๋ถ์์ด ๊ฐ๋ฅํ๋ค. (3) ๋ณธ ์ฐ๊ตฌ์์ ์ ์ํ ๋ถ์๊ธฐ๋ฒ์ ์ํ๋ฉด ๊ธฐ์กด์ ์ ์ธ๋ ํต๊ณผ๊ตํต๋์ ํฌํจ์์ผ ๋ถ์ํ ์ ์๋ค. ์ด๋ฌํ ๋ฐฉ๋ฒ์ ํตํด ๊ต์ฐจ๋ก ๋ฐ ๊ฐ๋ก๋ถ์ ์์ ํํฉ๊ณผ ๋๋จ์ด์ง ์ ์๋ ๊ฒฐ๊ณผ์ ๋ํ ์ค๋ฅ๋ฅผ ์ต์ํํ ์ ์๋ค. (4) ์๋ก์ด ๋ถ์๊ธฐ๋ฒ์ ์ด์ฉํ๋ฉด ์ ์ค ๋๋ ๊ธฐ์กด ์์ค๋ฌผ์ ๋ํ ๋ฌธ์ ์ ์ ๋์ถํ์ฌ ๋๋ก์ด์ ๋ฐ ์ ํธ์ด์ ๋ฑ์ ๊ฐ์ ๋ฐฉ์์ ์ ์ํ ์ ์๋ค. | ํ ๋ชฉ๊ณตํ | null | http://dx.doi.org/ | kci_detailed_000165.xml | ||
ART001652553 | oai_dc | ๊ฒฝํ์ ๋ฒ ์ด์ฆ ๋ฐฉ๋ฒ์ ์ํ ๊ณต์ฉ์ค์ธ ๊ณ ์๋๋ก ๊ตํต์์ ์ง๋จ์ฌ์
์ ํจ๊ณผํ๊ฐ | Evaluation of Road Safety Audit on Existing Freeway by Empirical Bayes Method | {
"journal_name": "ํ๊ตญ๋๋กํํ",
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} | [
"๋ฌธ์น๋ผ((์ฃผ)๊ฒฝํ์์ง๋์ด๋ง)"
] | ๋๋ก๊ตํต ์์ ์ง๋จ์ ๋๋ก์ ๊ณํ ๋ฐ ์ค๊ณ๋จ๊ณ์์๋ถํฐ ๊ตํต์ฌ๊ณ ๊ฐ ๋ฐ์ํ ์ ์๋ ์์๋ฅผ ์ฐพ์๋ด ๋ฏธ๋ฆฌ ๊ฐ์ ํ๊ณ ๊ฑด์ค ํ์ด์๋จ๊ณ์๋ ๋๋ก๊ตฌ์กฐ๋ ์์ ์์ค์ด ์ฌ๊ณ ๋ฐฉ์ง์ ์ ์ ํ์ง๋ฅผ ํ๊ฐํ๋ ์๋ฐฉ์ ์ฐจ์์ ์์ ์ฑ ๊ฐํ ์ ๋์ด๋ค. ์ด ์ ๋๋ 2000๋
๋ ์ด์ ์ฐ๋ฆฌ๋๋ผ์ ์๊ฐ๋ ์ด๋ ๋ค์ํ ์ฌ์
์ด ์งํ๋์ด ์๊ณ ๋ฒ์ ํ๋์์ผ๋ฉฐ, ์ฌ์
์ ์ง์ํ๋ฅผ ์ํด ํ์ฌ๊น์ง ์งํ๋ ์ฌ์
์ ๋ํ ํ๊ฐ๊ฐ ํ์ํ ์์ ์ด๋ค. ์ด๋ฌํ ํ์์ฑ์ ๋ฐ๋ผ ๋ณธ ์ฐ๊ตฌ์์๋ ๊ณต์ฉ์ค์ธ ๊ณ ์๋๋ก์ ๊ตํต์์ ์ง๋จ์ฌ์
์ ๋ํ ํจ๊ณผํ๊ฐ๋ฅผ ์ํํ์๋ค. ์ฐ๊ตฌ์ ๊ณต๊ฐ์ ๋ฒ์๋ ์๋๊ณ ์๋๋ก์ด๋ฉฐ 2005๋
๊ณผ 2006๋
๋์ ์ํ๋ ์์ ์ง๋จ์ฌ์
์ ๋ํด ์ ํ 2๋
์ํ๊ฐ๊ธฐ๊ฐ์ผ๋ก ํ์ฌ ๋ถ์ํ์๋ค. ํ๊ฐ๋ฐฉ๋ฒ์ ๊ด์ฐฐ์ ์ฌ์ โฉ์ฌํ ํ๊ฐ๋ฐฉ๋ฒ ์ค ๊ฒฝํ์ ๋ฒ ์ด์ฆ ๋ฐฉ๋ฒ์ ์ ์ฉํ์๋ค. ํจ๊ณผํ๊ฐ ๊ฒฐ๊ณผ์ฌ์
์ด ์ํ๋ ๋๋ถ๋ถ์ ๊ตฌ๊ฐ์์ ๊ฐ์ ํจ๊ณผ๊ฐ ์๋ ๊ฒ์ผ๋ก ๋ํ๋ฌ์ผ๋ ์ผ๋ถ ๊ตฌ๊ฐ์์๋ ํจ๊ณผ๊ฐ ์๊ฑฐ๋ ๋ฏธ๋ฏธํ ๊ฒ์ผ๋ก ๋ํ๋ฌ๋ค. ์ด๋ฅผ ๊ฐ ๊ตฌ๊ฐ๋ณ ๊ฐ์ ์กฐ์น ๋ด์ฉ๊ณผ ๋น๊ตํ์ฌ ๊ฒํ ํ ๊ฒฐ๊ณผ ํด๋น ๊ตฌ๊ฐ์ ์ฌ๋ฌ ๊ฐ์ ์กฐ์น๊ฐ ์ํ๋ ๊ฒฝ์ฐ ํจ๊ณผ๊ฐ ์ํธํ๊ฒ ๋ํ๋ฌ์ผ๋ฉฐ, ํจ๊ณผ๊ฐ ๋ํ๋์ง ์๋ ๊ตฌ๊ฐ์ ๊ฐ์ ์กฐ์น๊ฐ ์ ๊ฑฐ๋ ๋จ์ผํ ๊ฒฝ์ฐ๊ฐ ์ผ๋ฐ์ ์ด์๋ค. ์ด๋ฌํ ๊ฒฐ๊ณผ๋ฅผ ๋ฐํ์ผ๋ก ๊ฐ์ ํจ๊ณผ๊ฐ ๋ํ๋์ง ์๋ ๊ตฌ๊ฐ์ ๋ํด์๋ ๊ตฌ์ฒด์ ์ธ ๋ถ์๊ณผ ๋์์ฑ
๋ง๋ จ์ด ๊ฐ๋ฅํ ๊ฒ์ด๋ค. ๋ํ ํฅํ ๊ณต์ฉ์ค์ธ ๊ณ ์๋๋ก ์์ ์ง๋จ์ฌ์
์์ฌ์
๋ด์ฉ ๋ฐ ๋ฐฉํฅ์ค์ ๋ฑ์ ์ฐธ๊ณ ๋ก ํ์ฉ๋ ์ ์๋ค. | ํ ๋ชฉ๊ณตํ | null | http://dx.doi.org/ | kci_detailed_000165.xml | ||
ART001652539 | oai_dc | ๋๋กํ์งํ์ ๊ฒฐ๋ก ๋ฐฉ์ง ๋์๋ณ ํจ๊ณผ ๋ถ์ | An Alternative Effectiveness Analysis on Anti-Dew Road Sign | {
"journal_name": "ํ๊ตญ๋๋กํํ",
"publisher": null,
"pub_year": null,
"pub_month": null,
"volume": null,
"issue": null
} | [
"๋ฐ์ฌํ(ํ๊ตญ๊ฑด์ค๊ธฐ์ ์ฐ๊ตฌ์); ์ค๋๊ทผ(ํ๊ตญ๊ฑด์ค๊ธฐ์ ์ฐ๊ตฌ์); ์ฑ์ ๊ณค(ํ๊ตญ๊ฑด์ค๊ธฐ์ ์ฐ๊ตฌ์); ๊ฐ์์(ํ๊ตญ๊ฑด์ค๊ธฐ์ ์ฐ๊ตฌ์)"
] | ๋๋กํ์ง๋ ์ด์ ์์๊ฒ ์ ๋ณด์ ๊ณต์ ์ญํ ์ ํ๋ ๋๋ก์์ค๋ฌผ๋ก์ ์ฃผํ๊ฒฝ๋ก์ ๋ํ ์ด์ ์์ ํ๋จ์ ๋์์ค๋ค. ๊ทธ๋ฌ๋, ์ฃผโฉ์ผ๊ฐ์ ์จ๋, ์ต๋ ๋ณํ๋ก ์ธํ ๋๋กํ์งํ์ ๊ฒฐ๋ก๋ฐ์ ์, ์ ๋ณด์ ๋ฌ์ ๊ฒฐํจ์ด ๋ฐ์ํ์ฌ ๊ตํต์ฌ๊ณ ๊ฐ๋ฅ์ฑ์ ๋์ด๋ ์์ธ์ผ๋ก ์์ฉํ๋ค. ๋ฐ๋ผ์, ๋๋กํ์งํ์ ๊ฒฐ๋ก๋ฐ์์ ์๋ฐฉํ๊ธฐ ์ํ ๊ธฐ์ ์ด ํ์ํ๋ค. ๋ณธ ์ฐ๊ตฌ์์๋ ๋๋กํ์งํ์ ๊ฒฐ๋ก๋ฐ์์ ์๋ฐฉํ๋๋์์ ํจ๊ณผ๋ฅผ ๋น๊ตํ๊ธฐ ์ํด ๋จ์ด์์ฌ๊ฐ ์ฝ์
๋ ์ํธ, ๊ฒฐ๋ก๋ฐฉ์งํ๋ฆ์ด ๋ถ์ฐฉ๋ ์ํธ์ ์ ์ ํ๊ณ ๊ฒฐ๋ก๋ฐฉ์ง์ฒ๋ฆฌ๊ฐ ๋์ง ์์ ์ผ๋ฐ์ํธ๊ณผ ๋น๊ตํ์๋ค. ๋ถ์ฐ๋ถ์๊ณผ ์ฌํ๊ฒ์ (Tukey HSD)์ ํตํด ๊ฐ ์ํธ์ ๋ฐ์ํ ์ธก์ ์๊ฐ์ ๋ฐ๋ฅธ ๊ฒฐ๋ก๋์ ๋น๊ต ํ์ผ๋ฉฐ, ๊ฒฐ๋ก๋๊ณผ ์ฌ๊ท๋ฐ์ฌ๋์ ๊ด๊ณ๋ฅผ Pearson์ ์๊ด๋ถ์์ผ๋ก์จ ๊ฒ์ฆํ์๋ค. ๋ถ์๊ฒฐ๊ณผ, ๊ฒฐ๋ก๋ฐฉ์งํ๋ฆ์ด ๋ถ์ฐฉ๋ ์ํธ์์ ๊ฒฐ๋ก๋์ด ์ ๊ฒ ๋ํ๋ฌ์ผ๋ฉฐ, ๊ฒฐ๋ก๋ฐ์ 90์ด ํ์๋ ๊ฒฐ๋ก๋ฐฉ์งํ๋ฆ์ ๋ถ์ฐฉ ์ํธ๊ณผ ๋จ์ด์์ฌ๊ฐ ์ฝ์
๋ ์ํธ์์ ๋ํ๋๋ ๊ฒฐ๋ก๋์ ๊ฒฐ๋ก๋ฐฉ์ง์ฒ๋ฆฌ๊ฐ ๋์ง ์์ ์ํธ์์ ๋ฐ์ํ ๊ฒฐ๋ก๋๊ณผ์ ํต๊ณ์ ์ธ ์ฐจ์ด๊ฐ ์กด์ฌํ์๋ค. ๋ํ, ์๊ด๋ถ์๊ฒฐ๊ณผ๋ก์จ ๊ฒฐ๋ก๋๊ณผ ์ฌ๊ท๋ฐ์ฌ๋๋๋ฐ๋น๋กํ๋ ๊ฒ์ผ๋ก ๋ํ๋ฌ๋ค. ๋ฐ๋ผ์, ๋๋กํ์งํ์ ๋ฐ์๋ ๊ฒฐ๋ก๋๊ณผ ์ฌ๊ท๋ฐ์ฌ ๋ณํ์จ์ ๋ํ์ฌ, ๊ฒฐ๋ก๋ฐฉ์งํ๋ฆ์ ๋ถ์ฐฉ๊ณผ ๋จ์ด์์ฌ์ ์ฝ์
์ ๊ฒฐ๋ก๋ฐฉ์ง์ ํจ๊ณผ๊ฐ ์กด์ฌํ๋ ๊ฒ์ผ๋ก ํ๋จ๋๋ค. | ํ ๋ชฉ๊ณตํ | null | http://dx.doi.org/ | kci_detailed_000165.xml | ||
ART001652547 | oai_dc | ์ฐจ๋๊ฐ ์๋์๋์ ๋ฐ๋ฅธ ์ฐจ๋๊ฑฐ๋ฆฌ ๋ถํฌ์ ๊ดํ ์ฐ๊ตฌ -์ฐ์๋ฅ ๊ตํตํ๋ฆ์ ์ค์ฌ์ผ๋ก- | A Study on the Spacing Distrubution based on Relative Speeds between Vehicles -Focused on Uninterrupted Traffic Flow- | {
"journal_name": "ํ๊ตญ๋๋กํํ",
"publisher": null,
"pub_year": null,
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} | [
"๋ง์ฐฝ์(ํ๊ตญ๊ฑด์ค๊ธฐ์ ์ฐ๊ตฌ์); ์คํ๊ด(University of TennesseeยทResearch Assistant); ๊น๋ณ๊ด(ํ๊ตญ์ฒ ๋๊ณต์ฌ์ฐ๊ตฌ์)"
] | ์ ํ ์ฐจ๋๊ณผ์ ์๋์๋์ ๋ฐ๋ฅธ ์ฐจ๋๊ฑฐ๋ฆฌ ๋ถํฌ์ ๊ดํ ์ฐ๊ตฌ๋ฅผ ์ํด ์ฐ์๋ฅ ๋๋ก ์ค ๊ตญ๋์ ์ค์น๋ ์ฐจ๋๊ฒ์ง๊ธฐ(VDS,Vehicle Detection System)์ ๊ตํต์ ๋ณด ์์ง์๋ฃ๋ฅผ ๋ถ์ํ์๋ค. ์์ง์๋ฃ๋ฅผ ์ฐจ์ ๋ณ, ๋ฐฉํฅ๋ณ๋ก ์ ๋ ฌํ์ฌ ์ ํ ์ฐจ๋๊ณผ ํํ ์ฐจ๋ ์ฌ์ด์ ์๋์ฐจ์ด์ธ ์๋์๋์ ๊ฒ์ง๊ธฐ ํต๊ณผ์๊ฐ ๋ฐ ์ฐจ๋์ ์๋๋ฅผ ์ด์ฉํ์ฌ ์ฐจ๋๊ฑฐ๋ฆฌ๋ฅผ ์ฐ์ถํ์๋ค. ๋ชจ๋ ์๊ฐ๋๋ฅผ ๋์์ผ๋ก ์ฐ์ถ๋ ์๋์๋์ ์ฐจ๋๊ฑฐ๋ฆฌ์ ๋ถ์์ ํตํด ๋ ๋ณ์๊ฐ์ ๊ด๊ณ๋ฅผ ๋ถ์ํ ๊ฒฐ๊ณผ ๊ณ ๋ฅด๊ฒ ๋ถํฌํ๊ณ ์๋ ๊ฒ์ผ๋ก ๋ํ๋ฌ๊ณ ๋์ผ์ฐจ๋๊ตฐ ์ฃผํ์์ ์ฐจ๋๊ฑฐ๋ฆฌ์ ์ค๊ฐ๊ฐ์ ์ฝ 40m์ด๋ฉฐ, ์ด๋ ์๋ฃ๊ตฌ์ถ ๋ฐ ๋ถ์๋ถ๋ถ์์ ์ธ๊ธํ AโผD์์ญ์ ๋ถ๋ฅํจ์ ์์ด ๊ธฐ์ค์ด ๋ ์ ์์๋ค. ์๊ฐ๋์ ๋ฐ๋ฅธ ์ฐจ๋๊ฑฐ๋ฆฌ ๋ถํฌ์ ๋ํ ๋ถ์์ ์ํด ์์ง๋ ๋ชจ๋ ์๋ฃ์ ๊ตํต๋์ ํตํด ์ฒจ๋๊ตํต๋์ ์ฐ์ ํ๊ณ ์ด๋ฅผ ๊ธฐ์ค์ผ๋ก ์ฒจ๋์๊ฐ๊ณผ ๋น์ฒจ๋์๊ฐ์ ๋ถ๋ฅํ์ฌ ์ฐจ๋๊ฑฐ๋ฆฌ ๋ถํฌ์ ์ฐจ์ด๋ฅผ ๋ถ์ํ์๋ค. ์ฒจ๋์๊ฐ์ ๋น์ฒจ๋์๊ฐ์ ๋นํด ์๋์ ์ผ๋ก ์ ์ฐจ๋๊ณผ์ ์๋ ์ฐจ์ด๊ฐ ์ ๊ณ ์ฐจ๋๊ฑฐ๋ฆฌ๊ฐ ์ข์ ๊ฒ์ผ๋ก ๋ํ๋ฌ๊ธฐ ๋๋ฌธ์ ์ ํ์ฐจ๋๊ณผ ๊ฐ์ ์ฃผํ ํจํด์ผ๋ก ์ถ์ข
ํ๋ค๊ณ ํ ์ ์๊ณ ๋น์ฒจ๋์๊ฐ๋ ์ฐจ๋๊ฑฐ๋ฆฌ๊ฐ ์๋์ ์ผ๋ก ๋์ ๊ฒ์ผ๋ก ๋ํ๋ฌ๋ค. ์ด๋ ์ด์ ์์ ํํ๋ฅผ ๋ํ๋ผ ์๋ ์๋ ๊ฒ์ผ๋ก ์ฐจ๋๊ฑฐ๋ฆฌ๊ฐ ์ข์์๋ก ๊ณต๊ฒฉ์ ์ธ ์ด์ ์ ํ๋ฉฐ ๋ณธ์ธ์ ์ด ํตํ์๊ฐ์ ์ค์ด๊ณ ์ ํ๋ ์๊ตฌ๊ฐ ํฌ๋ค๊ณ ๋ฏธ๋ฃจ์ด ์ง์ํ ์ ์๊ฒ ๋ค. ํ์ง๋ง์ฌ๊ฐํตํ๊ณผ ๋น์ฒจ๋์๊ฐ์ ๊ฒฝ์ฐ๋ ์ฒจ๋์๊ฐ์ ๋นํด ์ฐจ๋๊ฑฐ๋ฆฌ๊ฐ ๋์ ๊ฒ์ผ๋ก ๋ฏธ๋ฃจ์ด๋ณด์ ์๊ฐ์ ์๋ฐ์ด ์ ์ด ์๋์ ์ผ๋ก ์ฌ์ ๋ก์ด ์ด์ ํํ๋ฅผ ๋ณด์ธ๋ค๊ณ ํ ์ ์๊ฒ ๋ค. | ํ ๋ชฉ๊ณตํ | null | http://dx.doi.org/ | kci_detailed_000165.xml | ||
ART001652569 | oai_dc | ์ธก์ ๋ถํ๋๋ฅผ ์ ์ฉํ ์ฐจ๋๊ฒ์ง๊ธฐ ์๋์ธก์ ์ฑ๋ฅํ๊ฐ๋ฐฉ๋ฒ ๊ฐ๋ฐ | Development of an Performance Evaluation Method for Vehicle Detector Speed Measurement Applying Uncertainty in Measurement | {
"journal_name": "ํ๊ตญ๋๋กํํ",
"publisher": null,
"pub_year": null,
"pub_month": null,
"volume": null,
"issue": null
} | [
"์ดํํ(ํ๊ตญ๋๋ก๊ณต์ฌ); ๊น์ฉ๋ง(๋๋ก๊ตํต๊ณต๋จ); ๊ฐ๋์ค(ํ๊ตญ๋๋ก๊ณต์ฌ)"
] | ๋ณธ ์ฐ๊ตฌ์์๋ ์ฐจ๋๊ฒ์ง๊ธฐ์ ์๋์ธก์ ์ฑ๋ฅํ๊ฐ๋ฐฉ๋ฒ์ ๊ฐ๋ฐํ์๋ค. ๊ฐ๋ฐ๋ ์ฑ๋ฅํ๊ฐ๋ฐฉ๋ฒ์์๋ ์ค์ฐจ์์ธ๋ค์ ๊ธฐ์ค์๋์ ๋ฐ์ํ๋ฉฐ ์ธก์ ๋ถํ๋์ ๊ฐ๋
์ ์ ์ฉํ์๋ค. ๊ธฐ์กด์ฐ๊ตฌ, ํต๊ณ์ ์ฒ๋ฆฌ๊ธฐ๋ฒ, ๊ธฐ์กด๊ตํต๋จ์์ฅ๋น ๋ฐ ์ฐจ๋๊ฒ์ง์์คํ
์ ์๋์ธก์ ์ฑ๋ฅํ๊ฐ๋ฐฉ๋ฒ ๋ฑ์ ๋ํ ๊ณ ์ฐฐ์ ํตํด ๊ธฐ์กดํ๊ฐ๋ฐฉ๋ฒ์ ๋ฌธ์ ์ ์ ๋์ถํ๊ณ ๊ฐ์ ๋ ์ฑ๋ฅํ๊ฐ๋ฐฉ๋ฒ์ ๊ฐ๋ฐํ์๋ค, ์ค์ ํ์ฅ์ ์ค์น๋ ์ฐจ๋๊ฒ์ง๊ธฐ์ ๋ํด์ ๊ธฐ์กดํ๊ฐ๋ฐฉ๋ฒ๊ณผ ๊ฐ๋ฐ๋ฐฉ๋ฒ์ ์ ์ฉํด๋ณธ ๊ฒฐ๊ณผ ๊ธฐ์กดํ๊ฐ๋ฐฉ๋ฒ์ ํ๊ฐ๊ธฐ์ค์ ์ ํฉํ๋ ๊ฐ๋ฐ๋ฐฉ๋ฒ์ ํ๊ฐ๊ธฐ์ค์ ๋ง์กฑ์ํค์ง ๋ชปํ๊ณ ์๋ค. ์ด๋ฌํ ๊ฒฐ๊ณผ๋ ๊ธฐ์กด์ฑ๋ฅํ๊ฐ๋ฐฉ๋ฒ์ด ์ธก์ ์์ ์ค์ฐจ์์ธ๋ค์ ์ถฉ๋ถํ ๊ณ ๋ คํ์ง ๋ชปํด์ ํ๊ฐ๋์์ฅ๋น์์ฑ๋ฅ์ ๊ณ ํ๊ฐํ ๊ฐ๋ฅ์ฑ์ด ์์์ ์๋ฏธํ๋ฉฐ, ๋ฐ๋ฉด์ ๊ฐ๋ฐ๋ชจํ์ ์ธก์ ์์ ๋ณ๋์์ธ์ธ ์ค์ฐจ๋ฅผ ๊ณ ๋ คํ๋ฏ๋ก ๊ธฐ์กดํ๊ฐ๋ฐฉ๋ฒ ๋ณด๋ค์ ํํจ์ ๋ํ๋ธ๋ค. | ํ ๋ชฉ๊ณตํ | null | http://dx.doi.org/ | kci_detailed_000165.xml | ||
ART001652538 | oai_dc | ๋ฐ์ค ์๊ฑฐ๊ฐ ํต๊ณผํ๋ ์ฝํฌ๋ฆฌํธ ํฌ์ฅ์ ์ค๋ ์์น์ ๊ดํ ์ฐ๊ตฌ | A Study on Joint Position at Concrete Pavement with Box Culverts | {
"journal_name": "ํ๊ตญ๋๋กํํ",
"publisher": null,
"pub_year": null,
"pub_month": null,
"volume": null,
"issue": null
} | [
"๋ฐ์ฃผ์(์ธํ๋ํ๊ต); ์๋์(ํ๊ตญ๋๋ก๊ณต์ฌ); ์ด์ฌํ(ํ๊ตญ๋๋ก๊ณต์ฌ); ์ ์งํ(์ธํ๋ํ๊ต)"
] | ์ง์ค๊ตฌ์กฐ๋ฌผ ์ฃผ์๋ ๋ค์ง์ด ์ ๋์ง ์์ ์ง๋ฐ์ด ์ฅ๊ธฐ ์นจํํ๋ฏ๋ก ์ฝํฌ๋ฆฌํธ ํฌ์ฅ ํ๋ถ์ ๊ณต๋์ด ๋ฐ์ํ๊ธฐ ์ฌ์ฐ๋ฉฐ, ์ด๋ก ์ธํด์ง์ง๋ ฅ์ด ์ ํ๋๊ธฐ ์ฝ๋ค. ์ฌ๊ธฐ์ ํ์ค์ด ๊ฐํด์ง๋ฉด ์ค๊ณ ์ ๊ธฐ๋ํ ๊ฒ๋ณด๋ค ํฐ ์๋ ฅ์ด ๋์
๋์ด ํฌ์ฅ์ ํ์์ด ๋ฐ์ํ๊ณ ์๋ช
์ด๊ฐ์ํ๊ฒ ๋๋ค. ๋ณธ ๋
ผ๋ฌธ์์๋ ํ๊ตญ๋๋ก๊ณต์ฌ ์ํ๋๋ก์ ๋ฐ์คํ ์๊ฑฐ ์๋ถ ์ฝํฌ๋ฆฌํธ ํฌ์ฅ ์ฌ๋๋ธ์ ํ์์ ์กฐ์ฌํ์๋ค. ํ ํผ๊ณ ๊ฐ ๋ค๋ฅธ ์ํ์ ๊ณผ ํํ์ ์ ์๊ฑฐ ์์น์ ๋ฐ์ํ ์ฌ๋๋ธ์ ํก๋ฐฉํฅ ๊ท ์ด์ ๋น๊ตํ์๋ค. ์ํ๋๋ก์ ํก๋ฐฉํฅ ๊ท ์ด์ ๊ฒ์ฆํ๊ธฐ ์ํด ํ ํผ๊ณ ๊ฐ ์๋ ๋ฐ์คํ ์๊ฑฐ์ ์ฝํฌ๋ฆฌํธ ํฌ์ฅ์ ์ ํ์์ ๋ฐฉ๋ฒ์ผ๋ก ๋ชจํํํ๊ณ ํด์ํ์๋ค. ํฌ์ฅ์ ์์ค์ ๊ณ ๋ คํ๊ณ ์ํ๋๋ก๊ฐ ์์นํ ๊ฒฝ๊ธฐ๋ ์ฌ์ฃผ ์ง์ญ ์ฝํฌ๋ฆฌํธ ์ฌ๋๋ธ์ ์จ๋๊ตฌ๋ฐฐ๋ฅผ ์ ์ฉํ ํ ์คํ์ค์ ์ฌํํ์๋ค. ๊ฐ ํ์ค์กฐํฉ์ ๋ํด ์ต๋์ธ์ฅ์๋ ฅ์ด ๋ฐ์ํ๋ ์์น์ ์ด๋์ ์คํ์ค ์์น๋ฅผ ์ฐพ์๋๋ค. ์ด๋ฅผ ํตํด ์ต๋์ธ์ฅ์๋ ฅ์ ๊ฐ์์ํฌ ์ ์๋ ์ค๋ ์์น๋ฅผ ์ฐพ์๋ด๊ณ ์๊ฑฐ ํฌ๊ธฐ ๋ณ๋ก ์๋ถ์ ์์นํ๋ ์ฌ๋๋ธ์ ์ ์ ๊ธธ์ด๋ฅผ ์ ์ํ์๋ค. | ํ ๋ชฉ๊ณตํ | null | http://dx.doi.org/ | kci_detailed_000165.xml | ||
ART001652556 | oai_dc | Development of the Expected Safety Performance Models for Rural Highway Segments | Development of the Expected Safety Performance Models for Rural Highway Segments | {
"journal_name": "ํ๊ตญ๋๋กํํ",
"publisher": null,
"pub_year": null,
"pub_month": null,
"volume": null,
"issue": null
} | [
"์ค์ฃผํ(ํ๊ตญ๊ตํต๋ํ๊ต); ๊น๋ํ(ํ๊ตญ๊ตํต์ฐ๊ตฌ์); ์ด๋๋ฏผ(ํ๊ตญ๊ตํต์ฐ๊ตฌ์)"
] | The past researches on roadway segment safety estimation focused on intersections, which are the primary traffic accident regions. The past researches on roadway segments, However, analyzed the effects of certain factors on the traffic accident occurrence rate by organizing the individual geometric structures of the roads, and there is still a dearth of researches on the development of a traffic accident estimation model for rural roadway segments. Therefore, this research focused on rural two-lane and multilane roadway segments and developed traffic accident estimation models through the application of statistical techniques. This is required to explain such high frequency of zero counts in the traffic accident data. In this research, it was found that the Hurdle model is more suitable than the Poisson or negative binomial-regression model for explaining the excess zeros case. In addition, main variables were chosen to estimate their effects on traffic accident occurrence at rural roadway segments, and the safety at such rural roadway segments was estimated. In this research, it was assumed that there are different factors that affect the safety at two-way lane and multilane roadway segments, and a traffic accident estimation model was developed by dividing the two-way lane and multilane roadway segments. | ํ ๋ชฉ๊ณตํ | null | http://dx.doi.org/ | kci_detailed_000165.xml | ||
ART001652550 | oai_dc | ZAM์ ์ด์ฉํ ์ํ๊ต์ฐจ๋ก ์์ธ๋ณ ์ฌ๊ณ ๋ชจํ ๊ฐ๋ฐ | Accident Models of Circular Intersection by Cause Using ZAM | {
"journal_name": "ํ๊ตญ๋๋กํํ",
"publisher": null,
"pub_year": null,
"pub_month": null,
"volume": null,
"issue": null
} | [
"๋ํฌ(์ถฉ๋ถ๋ํ๊ต); ๋ฐ๋ณํธ(์ถฉ๋ถ๋ํ๊ต)"
] | ์ด ์ฐ๊ตฌ๋ ๊ตญ๋ด ์ํ๊ต์ฐจ๋ก์์ ๋ฐ์ํ ๊ต์ฐจ๋ก ์ฌ๊ณ ๋ฅผ ๋ค๋ฃจ๊ณ ์๋ค. ์ฐ๊ตฌ์ ๋ชฉ์ ์ ZAM์ ์ด์ฉํ์ฌ ์์ธ๋ณ ์ฌ๊ณ ๋ชจํ์ ๊ฐ๋ฐํ๋๋ฐ ์๋ค. ์ฃผ์๊ฒฐ๊ณผ๋ ๋ค์๊ณผ ๊ฐ๋ค. ์ฒซ์งธ, ๊ต์ฐจ๋ก ์ดํ๋ฐฉ๋ฒ ์๋ฐ์์๋ ZINB ๋ชจํ์ด ์ ํฉํ ๊ฒ์ผ๋ก ๋ถ์๋์๋ค. ๋์งธ, ์์ ๊ฑฐ๋ฆฌ ๋ฏธํ๋ณด์์๋ ZINB ๋ชจํ์ด ์ ํฉํ ๊ฒ์ผ๋ก ๋ถ์๋์๋ค. ๋ง์ง๋ง์ผ๋ก ๊ณตํต๋ณ์๋ก๋ ๊ตํต๋๊ณผ ํ์ ์ฐจ๋ก ํญ์ด ์ ์ ๋์๋ค.
๊ตํต๋์ด ๋ง์์๋ก ๊ทธ๋ฆฌ๊ณ ํ์ ์ฐจ๋ก ํญ์ด ์ข์์๋ก ์ฌ๊ณ ๊ฐ ๋ง์ด ๋ฐ์ํ๋ ๊ฒ์ผ๋ก ๋ถ์๋์๋ค. ํน์ ๋ณ์๋ก๋ ์ ๊ทผ๋ก์์ ๊ฐ์์์ค์๊ฐ ์ฑํ๋์๊ณ , ์ ๊ทผ๋ก์๊ฐ ์ฆ๊ฐํ ์๋ก ๊ทธ๋ฆฌ๊ณ ๊ฐ์์์ค์๊ฐ ์ ์์๋ก ์ฌ๊ณ ๊ฐ ์ฆ๊ฐํ๋ ๊ฒ์ผ๋ก ๋ถ์๋์๋ค. ์ด ์ฐ๊ตฌ๋์ํ๊ต์ฐจ๋ก ์ฌ๊ณ ์ฐ๊ตฌ์ ๊ธฐ์ฌํ ๊ฒ์ผ๋ก ๊ธฐ๋๋๋ค. | ํ ๋ชฉ๊ณตํ | null | http://dx.doi.org/ | kci_detailed_000165.xml | ||
ART001652545 | oai_dc | ๋กํฐ๋ฆฌ์ ํ์ ๊ต์ฐจ๋ก ์ด์๋ฐฉ์๋ณ ์ง์ฒด ๋น๊ต๋ถ์ | Comparative Analysis on the Delay of Rotary and Roundabout by Operational Type | {
"journal_name": "ํ๊ตญ๋๋กํํ",
"publisher": null,
"pub_year": null,
"pub_month": null,
"volume": null,
"issue": null
} | [
"๋ฐ๋ณํธ(์ถฉ๋ถ๋ํ๊ต); ๊น๊ฒฝํ(์ถฉ๋ถ๋ํ๊ต)"
] | ์ด ์ฐ๊ตฌ๋ ํ์ ๊ต์ฐจ๋ก์ ์ด์ํจ์จ์ ๋ค๋ฃจ๊ณ ์๋ค. ํ์ ๊ต์ฐจ๋ก๋ ์ผ๋ฐ์ ์ผ๋ก ๋์ ์ฉ๋, ์ง์ฒด๊ฐ์, ์์ ๊ฐ์ ๋ฑ์ ์ฅ์ ์ ๊ฐ์ง๊ณ ์๋ค. ์ํ๊ต์ฐจ๋ก๋ ํตํ์ฐ์ ๊ถ์ ๋ฐ๋ผ ๋กํฐ๋ฆฌ์ ํ์ ๊ต์ฐจ๋ก๋ก ๋๋ ์ ์๋ค. ์ด ์ฐ๊ตฌ์ ๋ชฉ์ ์ ์๋๋ฆฌ์ค์ ๋ฐ๋ฅธ ๋กํฐ๋ฆฌ์ ํ์ ๊ต์ฐจ๋ก์ ์ด์ํจ์จ์ ๋น๊ตโฉ๋ถ์ํ๋๋ฐ ์๋ค. ์ด๋ฅผ ์ํด ์ด ์ฐ๊ตฌ๋ ์ง์
๊ตํต๋๊ณผ ๋ฐฉํฅ๋ณ ๊ตํต๋์ ๋ฐ๋ฅธ 256๊ฐ์ ์๋๋ฆฌ์ค๋ฅผ ์ค์ ํ๊ณ , VISSIM์ ์ฌ์ฉํ์ฌ ์ง์ฒด๋ฅผ ๋ถ์ํ๋๋ฐ ์ค์ ์ ๋๊ณ ์๋ค. ์ฃผ์ ๊ฒฐ๊ณผ๋ ๋ค์๊ณผ ๊ฐ๋ค. ์ฒซ์งธ, ๋กํฐ๋ฆฌ์ ํ๊ท ์ง์ฒด๊ฐ ํ์ ๊ต์ฐจ๋ก์ ์ฐจ๋์ง์ฒด๋ณด๋ค 1.56-8.74๋ฐฐ ๋์ ๊ฒ์ผ๋ก ๋ถ์๋์๋ค. ๋์งธ, ์ฃผ๋๋ก์ ๋ถ๋๋ก์ ๊ตํต๋ ๋น์จ์ ์ฐจ์ด๊ฐ ํด์๋ก์ด์ํจ์จ์ด ๋ ์ข์ ๊ฒ์ผ๋ก ๋ถ์๋์๋ค. ์
์งธ, 4์ง ๊ต์ฐจ๋ก์ ํ๊ท ์ง์ฒด๊ฐ 3์ง ๊ต์ฐจ๋ก๋ณด๋ค 1.77-11.70๋ฐฐ ๋์ ๊ฒ์ผ๋ก ํ๊ฐ๋์๋ค. ๋ง์ง๋ง์ผ๋ก 2์ฐจ๋ก(3์ง์ 4์ง) ๊ต์ฐจ๋ก๊ฐ 1์ฐจ๋ก(3์ง์ 4์ง) ๊ต์ฐจ๋ก์ ๋นํด 2.02-2.23๋ฐฐ ๋ง์ ๊ตํต๋์ ์์ฉํ ์ ์๋ ๊ฒ์ผ๋ก ๋ถ์๋์๋ค. | ํ ๋ชฉ๊ณตํ | null | http://dx.doi.org/ | kci_detailed_000165.xml | ||
ART001652532 | oai_dc | ์คํ๊ณํ๋ฒ ๋ฐ ํ๋ชจ๋ ๊ฒ์ ์๊ณ ๋ฆฌ์ฆ์ ์ด์ฉํ ์์คํํธ ํฌ์ฅ์ฒด์ ํผ๋ก๊ท ์ด ๊ณต์ฉ์ฑ ๊ด๋ จ ์ธ์ฅ๋ณํ๋ฅ ์ถ์ ๋ชจ๋ธ ์ฐ๊ตฌ | Study on a Prediction Model of the Tensile Strain Related to the Fatigue Cracking Performance of Asphalt Concrete Pavements Through Design of Experiments and Harmony Search Algorithm | {
"journal_name": "ํ๊ตญ๋๋กํํ",
"publisher": null,
"pub_year": null,
"pub_month": null,
"volume": null,
"issue": null
} | [
"์ด์ฐฝ์ค(๊ฒฝ๋ถ๋ํ๊ต); ๊น๋์(์์ธ๊ณผํ๊ธฐ์ ๋ํ๊ต); ๋ฌธ์ฑํธ(์์ธ๊ณผํ๊ธฐ์ ๋ํ๊ต); ์ ํ์ค(ํ๊ตญ๊ฑด์ค๊ธฐ์ ์ฐ๊ตฌ์)"
] | ๋ณธ ์ฐ๊ตฌ๋ ์คํ๊ณํ๋ฒ(์: ๋ฐ์ํ๋ฉด๊ณํ๋ฒ) ๋ฐ ํ๋ชจ๋ ๊ฒ์ ์๊ณ ๋ฆฌ์ฆ์ ํตํ์ฌ ๋ค์ํ ์์คํํธ ์ฝํฌ๋ฆฌํธ ํฌ์ฅ ๊ตฌ์กฐ์ฒด์ ์์ด ํผ๋ก๊ท ์ด์ ๊ณต์ฉ์ฑ ์ธ์์ธ ์ธ์ฅ๋ณํ๋ฅ ์ ์์ธกํ๋ ๋ชจ๋ธ์ ๊ฐ๋ฐํ๋ ๋ฐฉ๋ฒ์ ๋ํ ์ฐ๊ตฌ์ด๋ค. ์ธ์ฅ๋ณํ๋ฅ ์ ์ฐ์ ํ๊ธฐ ์ํ์ฌํ๊ตญ๊ฑด์ค๊ธฐ์ ์ฐ๊ตฌ์์์ ๊ฐ๋ฐํ ์ ํ์์ ์ถ๋์นญํด์ ํ๋ก๊ทธ๋จ์ธ KICTPAVE๋ฅผ ์ด์ฉํ์ฌ ์์คํํธ ์ธต๊ณผ ๋ฆฐ์ฝํฌ๋ฆฌํธ ์ธต์ ์ ์๋ฉด์์ ๋ฐ์๋๋ ๋ณํ๋ฅ ์ ๊ตฌํ์ฌ ๋ฐ์ดํฐ๋ฒ ์ด์ค(D/B)ํ ํ์๋ค. ์์คํํธ ํฌ์ฅ์์ ์
๋ ฅ๋ณ์์ธ ์ธต๋ณ ํ์ฑ๊ณ์ ๋ฐ ๋๊ป๋ฅผ ๋ค์ํ ์กฐ๊ฑด์์ KICTPAVE ํ๋ก๊ทธ๋จ์ ์ํํ์ฌ ํ๋ จ์ฉ D/B(Training Set)์ธ ๋ณํ๋ฅ ์ ๊ฐ๋ค์ ๊ตฌ์ถํ ํ ๋ฐ์ํ๋ฉด๊ณํ๋ฒ์๊ทผ๊ฑฐํ์ฌ ํ๊ท๋ฐฉ์ ์์ ์ ์ํ์์ผ๋ฉฐ ๋ฐฉ์ ์์ ํ์ํ ๊ณ์๊ฐ์ ๊ฒฐ์ ํ๊ธฐ ์ํ์ฌ ํ๋ชจ๋ ๊ฒ์ ์๊ณ ๋ฆฌ์ฆ์ ์ด์ฉํ์๋ค. ์ต์ข
์ ์ผ๋ก ๊ฒฐ์ ๋ ํ๊ท๋ฐฉ์ ์์ ๊ณ์๊ฐ๋ค์ ์ ํ์ฑ์ ๊ฒ์ฆํ๊ธฐ ์ํด์ ํ๋ จ์ฉ D/B๊ฐ ์๋ ๋ค๋ฅธ ์กฐ๊ฑด์ ์
๋ ฅ๋ณ์๋ฅผ ์ด์ฉํ์ฌ ๊ฒ์ฆ์ฉ D/B(Testing Set)๋ฅผ ๊ตฌ์ถํ๊ณ ์ด๋ฅผ ์ด์ฉํ์ฌ ๊ฐ๋ฐ๋ ๋ชจ๋ธ์ ๊ฒ์ฆํ์๋ค. | ํ ๋ชฉ๊ณตํ | null | http://dx.doi.org/ | kci_detailed_000165.xml | ||
ART001652565 | oai_dc | ์์ธ์ ๋ฒ์ค์ ์ฉ์ฐจ๋ก๊ตฌ๊ฐ์ ๋ฒ์ค์ฌ๊ณ ์ํฅ์์ธ ๋ถ์ ์ฐ๊ตฌ (์ค์์ ์ฉ์ฐจ๋ก ๋ฐ ๊ฐ๋ก๋ณ์ ์ฉ์ฐจ๋ก ๊ตฌ๋ถ) | Analysis of Bus Accidents Influential Factors on Bus Exclusive Lane in Seoul (Bus Median Lane and Bus Curb Lane Defined) | {
"journal_name": "ํ๊ตญ๋๋กํํ",
"publisher": null,
"pub_year": null,
"pub_month": null,
"volume": null,
"issue": null
} | [
"์์ค๋ฒ(์์ธ์๋ฆฝ๋ํ๊ต); ํ์ง์ฐ(์์ธ์๋ฆฝ๋ํ๊ต); ์ฅ์ผ์ค(๊ฐ์ฒ๋ํ๊ต); ๋ฐ์คํ(๊ตํต์์ ๊ณต๋จ)"
] | ํ์ฌ ์์ธ์๋ ๋์ค๊ตํต ํ์ฑํ ์ ์ฑ
์ ๋ฐ๋ผ ๋ฒ์ค์ ์ฉ์ฐจ๋ก์ ๋๋ฅผ ์ค์ํ๊ณ ์๋ค. ๊ณผ๊ฑฐ ๊ฐ๋ก๋ณ๋ฒ์ค์ ์ฉ์ฐจ๋ก ์ค์น๋ฅผ ์์์ผ๋กํ์ฌ์๋ ์ค์๋ฒ์ค์ ์ฉ์ฐจ๋ก ์ค์น๊ตฌ๊ฐ๋ ์ฆ๊ฐํ๊ณ ์๋ค. ๋ณธ ์ฐ๊ตฌ์ ๋ชฉ์ ์ ์ด ์ค์๋ฒ์ค์ ์ฉ์ฐจ๋ก์ ๊ฐ๋ก๋ณ๋ฒ์ค์ ์ฉ์ฐจ๋ก์์ ๋ฒ์ค์ฌ๊ณ ์ ์ํฅ์ ๋ฏธ์น๋ ์์ธ์ ๋ถ์ํ๋๋ฐ ์๋ค. ๋ถ์๋ฐฉ๋ฒ์ผ๋ก ๊ตํต์ฌ๊ณ ๊ฐ ํ๋ฅ ์ ์ผ๋ก ๊ทนํ ๋๋ฌผ๊ฒ ์ผ์ด๋๋ค๋ ์ ์ ์๊ฐํ์ฌ ํฌ์์ก ํ๊ท๋ชจํ๊ณผ ์์ดํญ ํ๊ท๋ชจํ์ ์ ํํ์์ผ๋ฉฐ, ๊ณผ์ฐํฌ ์กด์ฌ์ฌ๋ถ์ ๋ฐ๋ผ ์์ดํญ ํ๊ท๋ชจํ์ผ๋ก ์ต์ข
๋ชจํ์ ์ ๋ฆฝํ์๋ค.
์ค์๋ฒ์ค์ ์ฉ์ฐจ๋ก๊ตฌ๊ฐ์ ๋ฒ์ค๋
ธ์ ์, ์ค์์ฐจ๋ก ์ง์ถ์
์ ํ์, ์ค์์ฐจ๋ก ์ ์ง์ ํํด์ ๋ฌด, ์ค์์ฐจ๋ก ์ ์ง์ ๊ณผ ํก๋จ๋ณด๋ ์ด๊ฒฉ๊ฑฐ๋ฆฌ, ๊ตํต๋, ๊ฐ๋ณ์ฐจ๋ก ์ ๋ฅ์ฅ ์ ์ฐจ๋
ธ์ ์ 6๊ฐ์ ๋ณ์์์ ๋ฒ์ค์ฌ๊ณ ์ ์ ์ํ ์ํฅ์ ๋ฏธ์น๋ ๊ฒ์ผ๋ก ๋ํ๋ฌ๋ค. ๊ฐ๋ก๋ณ๋ฒ์ค์ ์ฉ์ฐจ๋ก๊ตฌ๊ฐ์ ์ฐํ์ ๋ฒ์ค๋
ธ์ ์, ์์ต ๋ถ๋ฒ์ฃผ์ ์ฐจ ์ ๋ฌด, ๋ณดํ์ ํธ์๊ฐ, ํ ์ง์ด์ฉํํ 4๊ฐ์ ๋ณ์์์ ๋ฒ์ค์ฌ๊ณ ์ ์ ์ํ ์ํฅ์๋ฏธ์น๋ ๊ฒ์ผ๋ก ๋ํ๋ฌ๋ค. | ํ ๋ชฉ๊ณตํ | null | http://dx.doi.org/ | kci_detailed_000165.xml | ||
ART001652530 | oai_dc | ์ ์ฐฉ์ ๋ฐฉ์์ธต์ ์ ์ฉํ ํฉ์ฑ๋จ๋ฉดํฌ์ฅ์ ๋ฐ์ฌ๊ท ์ด ์ ํญํน์ฑ ๋ถ์ ์ฐ๊ตฌ | Behavior and Resistance to the Reflection Crack of Composite Pavement with Waterproof Membrane | {
"journal_name": "ํ๊ตญ๋๋กํํ",
"publisher": null,
"pub_year": null,
"pub_month": null,
"volume": null,
"issue": null
} | [
"์์์ฐฌ(ํ์๋ํ๊ต); ์ด์ฉ๋ฌธ(ํํ์์ง๋์ด๋ง ๊ธฐ์ ์ฐ๊ตฌ์); ๊น์คํ(ํ๋๊ฑด์ค ๊ธฐ์ ๊ฐ๋ฐ์); ์กฐ๋จํ(์ธ์ฒ๊ตญ์ ๊ณตํญ๊ณต์ฌ)"
] | ๊ณ ์๋๋ก์์ ์ฌ๋ น์ด 20๋
์ด ๋๋ ๋
ธํ ์ฝํฌ๋ฆฌํธ๊ฐ ๋์ด๋จ์ ๋ฐ๋ผ ์ฝํฌ๋ฆฌํธ ํฌ์ฅ์ ๋ณด์/๋ณด๊ฐ์ด ์ค์ํ ์ด์๋ก ๋๋๋๊ณ ์๋ค. ๋
ธํ ์ฝํฌ๋ฆฌํธ ํฌ์ฅ์ ๋ณด๊ฐ ๋์์ผ๋ก์ ์์คํํธ ๋ง์์ฐ๊ธฐ๊ฐ ๋ง์ด ์ฌ์ฉ๋๊ณ ์์ผ๋ ๋ฐ์ฌ๊ท ์ด ๋ฐ ํฌํธํ ๋ฑ ์ฒด๋ฅ์๋ก ์ธํ ๋ฌธ์ ๊ฐ ์ฌ๊ฐํ๊ฒ ๋๋๋๊ณ ์๋ค. ๋ณธ ์ฐ๊ตฌ๋ ๋ฐ์ฌ๊ท ์ด ๋ฐ ์ฒด๋ฅ์์ ๋ฌธ์ ๋ฅผ ์ต์ํํ๊ธฐ ์ํด ๊ณ ์๋ ์ ์ฐฉ์ ๋ฐฉ์์ธต์ ์๊ฐํ์์ผ๋ฉฐ ํฌ์ฅ๊ฐ์์ํ์ ํตํด ์ผ๋ฐ ํ์ฝํ
์ ์ ์ฉํ ํฉ์ฑ๋จ๋ฉดํฌ์ฅ๊ณผ ๋น๊ตํ๊ฐ๋ฅผ ์ค์ํ์๋ค. ์คํ์ ๊ฐ์ฐ๋ฅผ ๋ชจ์ฌํ๊ธฐ ์ํด ๋ฌผ์ ๋ฟ๋ฆฌ๋ฉด์ ์งํํ์๊ณ ๋ง์์ฐ๊ธฐ ํฌ์ฅ์ฒด์ ๊ฑฐ๋ ๋ฐ ์๋ถ ์ ํญ ํน์ฑ์ ๋ถ์ํ์๋ค. ์ฐ๊ตฌ๊ฒฐ๊ณผ ์ ์ฐฉ์ ๋ฐฉ์์ธต์ ์์คํํธ ํฌ์ฅ๊ณผ ์ฝํฌ๋ฆฌํธ ํฌ์ฅ์ด ์ผ์ฒด๋ก ๊ฑฐ๋ํ๋ ๊ฒ์ ๋์์ฃผ๊ธฐ ๋๋ฌธ์ ์์คํํธ ํฌ์ฅ์ฒด์ ๋ฐ์ํ๋ ๊ฑฐ๋์ด ์ผ๋ฐ ํ์ฝํ
๊ตฌ๊ฐ๊ณผ ์์ ํ๋ค๋ฅธ ๊ฒ์ผ๋ก ๋ํ๋ฌ๋ค. ๋ ์๋ถ์ ์ ์
์ ์ต์ํํ๋ฏ๋ก ๊ฒฐ๊ณผ์ ์ผ๋ก ๋ฐ์ฌ๊ท ์ด์ ๋ฐ์์ ์ฝ 70% ์ง์ฐ์ํค๋ ๊ฒ์ผ๋ก ๋ํ๋ฌ์ผ๋ฉฐ, ์ฒด๋ฅ์๋ก ์ธํ ์์๋ ์ค์ฌ์ฃผ๋ ๊ฒ์ผ๋ก ๋ํ๋ฌ๋ค. | ํ ๋ชฉ๊ณตํ | null | http://dx.doi.org/ | kci_detailed_000166.xml | ||
ART001652534 | oai_dc | ์ฃผํ์ฐจ๋์ ์ข
๋ฅ์ ์์คํํธ ์ฝํฌ๋ฆฌํธ ํฌ์ฅ ํํ์ฑ์ ๋ฐ๋ฅธ ๋์ ํ์ค ์ฆ๊ฐ๊ณ์ ์ฐ์ | Estimation of Dynamic Load Amplification Factors under Various Roughness Indices and Vehicle Classes | {
"journal_name": "ํ๊ตญ๋๋กํํ",
"publisher": null,
"pub_year": null,
"pub_month": null,
"volume": null,
"issue": null
} | [
"์ต์ค์ฑ(์ธ๋๋ํ๊ต); ์์ฃผ์(ํ๊ตญ๋๋ก๊ณต์ฌ); ๊น์ข
์ฐ((์ฃผ)์ ๋์ฝ)"
] | ๋ค์ํ ์ข
๋ฅ์ ์ฐจ๋ํ์ค์ ๋์์ผ๋ก ๋๋ก์ ํํ์ฑ๊ณผ ์ฐจ๋์ ์๋๊ฐ ๋๋ก์ ์์ฉํ๋ ๋์ ํ์ค์ ๋ฏธ์น๋ ์ํฅ์ ๋ถ์ํ๊ธฐ์ํ์ฌ ๊ฒฝ์ธ๊ณ ์๋๋ก์ ๊ตํต๋์๋ฃ ๋ถ์์ ํตํ์ฌ ํต๊ณผ๋น๋๊ฐ ๋์ ๋ํ ์ค์ฐจ๋ ๊ฐ๋
์ 2์ถ, 3์ถ, 4์ถ ๊ทธ๋ฆฌ๊ณ 5์ถ ์ฐจ๋์ ์ ์ ํ์๋ค. ์ ์ ๋ ๋ํ ์ค์ฐจ๋์ ๋์์ผ๋ก ๋๋ก์ ํํ์ฑ๊ณผ ์ฃผํ์ฐจ๋์ ์๋์ ๋ฐ๋ฅธ ๋์ ์ถํ์ค์ TruckSim ํ๋ก๊ทธ๋จ์ ํตํ์ฌ ์ฐ์ ํ ํ, ๊ฐ ๋ํ ์ค์ฐจ๋์ ๋์์ผ๋ก ๋๋ก ํํ์ฑ ๋ณํ์ ๋ฐ๋ฅธ ๋์ ํ์ค์ ๋ํ ์ ์ ํ์ค์ ๋น์ธ ๋์ ํ์ค ์ฆ๊ฐ๊ณ์๋ฅผ์ฐ์ ํ์๋ค. ๋ณธ ์ฐ๊ตฌ๋ฅผ ํตํด ์ฐ์ ๋ ๋์ ํ์ค ์ฆ๊ฐ๊ณ์๋ก๋ถํฐ ์์ธกํ ๋์ ํ์ค์ 3์ถ ๋ํ ์ค์ฐจ๋์์ IRI๊ฐ 3.5์ด๊ณ ์ฃผํ์ฐจ๋์๋๊ฐ 100km/h์ผ ๋ ์ ์ ํ์ค์ ๋นํด ์ต๋ 36%์ ํด๋นํ๋ ์ถ๊ฐ์ ์ธ ๋์ ํ์ค์ด ๊ฐํด์ง๋ ๊ฒ์ผ๋ก ๋ํ๋ฌ๊ณ , ๋ค์ํ ์ฐจ์ข
์ ๋ํ ๋์ ํ์ค ์ฆ๊ฐ๊ณ์์ ํน์ฑ์ ๋ถ์ํ ๊ฒฐ๊ณผ ์ถ๊ฐ๊ฑฐ๋ฆฌ๊ฐ ์งง๊ณ ๊ฐ ์ถ์ ๊ฐํด์ง๋ ํ์ค๋ถ๋ด๋ฅ ์ด ๋์์๋ก ๋์ ํ์ค ์ฆ๊ฐ๊ณ์๊ฐ ์ฆ๊ฐํจ์ ์ ์ ์์๋ค. | ํ ๋ชฉ๊ณตํ | null | http://dx.doi.org/ | kci_detailed_000166.xml | ||
ART001652536 | oai_dc | ์์ ์ธ๋ผ๋ฏน ์ฐ๊ฒฐ๋ฐฉ์์ ๋ฐ๋ฅธ ์ ๋ ฅ์์ฐ ํ๊ฐ ์ฐ๊ตฌ | An Estimation of Piezoelectric Power as Connection Methods of Piezoelectric Ceramic | {
"journal_name": "ํ๊ตญ๋๋กํํ",
"publisher": null,
"pub_year": null,
"pub_month": null,
"volume": null,
"issue": null
} | [
"๊ถ์์(ํ๊ตญ๊ฑด์ค๊ธฐ์ ์ฐ๊ตฌ์); ์ด์ฌ์ค(ํ๊ตญ๊ฑด์ค๊ธฐ์ ์ฐ๊ตฌ์ ๋๋ก์ฐ๊ตฌ์ค); ๋ฌธํ๋ฃก(ํ๊ตญ๊ฑด์ค๊ธฐ์ ์ฐ๊ตฌ์); ๋ฅ์น๊ธฐ(ํ๊ตญ๊ฑด์ค๊ธฐ์ ์ฐ๊ตฌ์)"
] | ์ธ๊ณ๊ฐ๊ตญ์์ ํ์, ํํ๊ณผ ๊ฐ์ ์์ฐ์ฌํด๊ฐ ๋ง์ด ๋ฐ์ํ๊ณ ์๋ค. ์ด๋ฌํ ์์ฐ์ฌํด๊ฐ ๋ฐ์ํ๋ ์์ธ์ผ๋ก๋ ์ง๊ตฌ์จ์ค๊ฐ์ค ๋ฐฐ์ถ ์ฆ๊ฐ์ ๋ฐ๋ฅธ ์ง๊ตฌ์จ๋ํ ํ์ ๋๋ฌธ์ด๋ค. ์ง๊ตฌ์จ๋ํ๋ฅผ ๋ง๊ธฐ ์ํด, ๋ง์ ์ฐ๊ตฌ์ง๋ค์ด ์ ์ฌ์์๋์ง์ ๋ํ ์ฐ๊ตฌ๋ฅผ ์งํํ๊ณ ์๋ค. ์ ๋ถ๋ ์จ์ค๊ฐ์ค๋ฐฐ์ถ๋์ ๊ฐ์ถํ์ฌ ์ง๊ตฌ์จ๋ํ๋ฅผ ๋ง๊ธฐ์ํดโ์ ํ์ ๋
น์์ฑ์ฅโ์ ๊ตญ๊ฐ์ ์ฑ
ํ์์ ์ ์ฌ์์๋์ง์ ๊ฐ์์นํ๊ฒฝ์ ์ธ ๋
น์์ฐ์
์ ๋ง์ ๊ด์ฌ๊ณผ ํฌ์์ ์ง์คํ๊ณ ์๋ค. ์ฐ๊ตฌํ๋ค์ ๋๋ก๋ฅผ ์ฃผํํ๋ ์ฐจ๋์ผ๋ก๋ถํฐ ์ ๋ฌ๋๋ ์ญํ์ ์๋์ง๋ฅผ ์ด์ฉํ์ฌ ์ ์ฌ์์๋์ง๋ฅผ ์์ฐํ๋ ์ฐ๊ตฌ๋ฅผ ์งํํ๊ณ ์๋ค. ๋ณธ ๋
ผ๋ฌธ์์๋ ์์ ์ธ๋ผ๋ฏน์ ํฌ๊ธฐ์ ์ฐ๊ฒฐ๋ฐฉ์์ ๋ฐ๋ฅธ ์ฐ๊ตฌ ๊ฒฐ๊ณผ๋ฅผ ๋ํ๋ด๊ณ ์๋ค. ๋ํ ์คํ๋ณ์์ ๋ฐ๋ฅธ ์์ ์ธ๋ผ๋ฏน์ ํ์ํน์ฑ์ ์ธก์ ํ์ฌ ๋ถ์์ ํ์๋ค. | ํ ๋ชฉ๊ณตํ | null | http://dx.doi.org/ | kci_detailed_000166.xml | ||
ART001652533 | oai_dc | ์์ธ์ ๋ด๋ถ์ํ๋๋ก ๊ต๋ฉดํฌ์ฅ ํ์์ ๋ฐ๋ฅธ ์์ํน์ฑ ์ฐ๊ตฌ | Study on the Noise Characteristics of Bridge Deck Pavements in Seoul Inner Ring Road | {
"journal_name": "ํ๊ตญ๋๋กํํ",
"publisher": null,
"pub_year": null,
"pub_month": null,
"volume": null,
"issue": null
} | [
"์ด์์ผ(์์ธ์ ๋๋ก๊ด๋ฆฌ๊ณผ); ์ง์ ํ((์ฃผ)๋ํ์์ง๋์ด๋ง); ๋ฌธ์ฑํธ(์์ธ๊ณผํ๊ธฐ์ ๋ํ๊ต); ๋ฌธํ๋ฃก(ํ๊ตญ๊ฑด์ค๊ธฐ์ ์ฐ๊ตฌ์)"
] | ํ์ด์ด์ ํฌ์ฅ๋
ธ๋ฉด๊ณผ์ ๋ง์ฐฐ์์ ์ธก์ ํ๊ธฐ ์ํด์ ๊ธฐ์กด ์ฐ๊ตฌ๋ฅผ ํตํด ์ ๋ขฐ์ฑ ๋ฐ ์ผ๊ด์ฑ์ด ๊ฒ์ฆ๋ NCPX(Noble Close Proximity) ๋ฐฉ๋ฒ์ ์ด์ฉํ์ฌ ๋ค์ํ ๊ต๋ฉดํฌ์ฅํ์์ ๋ํด ์์์ธก์ ์ ์ค์ํ์๋ค. ๋ํ ์ด๋ฒ์ ์ค์ํ ์ธก์ ์ ํ๋ฉด ๋ง์ดํฌ๋กํฐ์ ์ด์ฉํ์๋ค. ์์ธ์ ๋ด๋ถ์ํ๋๋ก์ ๊ต๋ฉดํฌ์ฅ ์ผ๋ถ ๊ตฌ๊ฐ์ ๋์์ผ๋ก ํฌ์ฅํ์์ ๋ฐ๋ผ์ ์์์ธก์ ์ ํ์์ผ๋ฉฐ, 4๊ฐ์ ๊ต๋ฉดํฌ์ฅํ์์ ๋ํ ์์ํน์ฑ์ ํ๊ฐํ๋๋ฐ ์ ์ ํ ์คํ๋ฒ์์ ์ ์ ์์๋ค. ์ํ๊ฒฐ๊ณผ ์์๊ด์ ์์ ์ฐจ์ด๊ฐ ์์์ ํ์ธํ ์ ์์๋ค. ๋ณธ ์ธก์ ์ ํตํด ๊ต๋ฉดํฌ์ฅ ํ๋ฉด์กฐ๊ฑด ๋ฐ ์ฃผํ์๋์ ๋ฐ๋ผ ํ์ด์ด์ ํฌ์ฅ๋
ธ๋ฉด๊ณผ์ ๋ง์ฐฐ์์ด ๋ค๋ฅด๊ฒ ๋ํ๋จ์ ์ ์ ์์๋ค. ๊ทธ๋ฆฌ๊ณ 1/3 ์ฅํ๋ธ ๋ฐด๋ ํด์์ ์ค์ํ ๊ฒฐ๊ณผ์ ์์ด ๊ต๋ฉดํฌ์ฅ์ ์ข
๋ฅ์ ๋ฐ๋ผ ์๊ณต์ ํ๋ก ์์ํน์ฑ์ด ๋ค๋ฅธ ๊ฒ์ ์ ์ ์์๋ค. | ํ ๋ชฉ๊ณตํ | null | http://dx.doi.org/ | kci_detailed_000166.xml | ||
ART001652543 | oai_dc | GPSํ๋ก๋ธ ์์ ๊ฑฐ ์ฃผํ์๋๋ฅผ ์ด์ฉํ ์์ ๊ฑฐ ์ฃผํํ๊ฒฝ ํ๊ฐ๋ฐฉ๋ฒ๋ก | Methodology for Evaluating Cycling Environment using GPS-based Probe Bicycle Speed Data | {
"journal_name": "ํ๊ตญ๋๋กํํ",
"publisher": null,
"pub_year": null,
"pub_month": null,
"volume": null,
"issue": null
} | [
"ํ๋ํธ(ํ์๋ํ๊ต); ๊ธธ์์ง(ํ์๋ํ๊ต); ๊น์์ง(ํ์๋ํ๊ต); ์ฃผ์ ํ(ํ์๋ํ๊ต); ์ค์ฒ (ํ์๋ํ๊ต)"
] | ์์ ๊ฑฐ๋ ์๋์ง ์๋ชจ๋ ์ค์ผ์ ๋ฐ์์ํค์ง ์๋ ์ง์๊ฐ๋ฅํ ๋
น์๊ตํต์๋จ์ผ๋ก ์ ๋ถ๋ ์์ ๊ฑฐ์ด์ฉ ํ์ฑํ๋ฅผ ์ ๊ทน ์ถ์งํ๊ณ ์๋ค. ๊ทธ๋ฌ๋ ์์ ๊ฑฐ ์์ฅ๊ท๋ชจ ์ฆ๊ฐ์ ํจ๊ป ์์ ๊ฑฐ ์ฌ๊ณ ๋ํ ์ง์์ ์ผ๋ก ์ฆ๊ฐํ๊ณ ์๋ค. ํ์ฌ KHCM์์ ์ ์ํ๊ณ ์๋ ์์ ๊ฑฐ๋๋ก ํ๊ฐ๋ ์์ ๊ฑฐ๋๋ก๋ฅผ ์ ํ๋ณ๋ก ๊ตฌ๋ถํ์ฌ ๊ฐ๊ธฐ ๋ค๋ฅธ ํจ๊ณผ์ฒ๋๋ฅผ ์ ์ฉํ์ฌ ์์ ๊ฑฐ์ ์ด๋์ฑ๊ณผ ์์ ์ฑ์ ํ๊ฐํ๊ณ ์์ผ๋ฉฐ, ํ์ฅ์กฐ์ฌ๋ฅผ ํตํ ์๋ฃ์์ง์ ํตํด ๋๋ก๋ฅผ ํ๊ฐํ๊ณ ์๋ค. ๋ณธ ์ฐ๊ตฌ์์๋ ๊ณต๊ณต์์ ๊ฑฐ์ ์ฅ์ฐฉ๋ GPS์์ ๊ธฐ๋ฅผ ํ์ฉํ ์์ ๊ฑฐ ์ฃผํํ๊ฒฝ ํ๊ฐ ๋ฐฉ์์ผ๋ก ์์ง๋ ์์ ๊ฑฐ ์ฃผํ์๋์๋ฃ๋ฅผ ์ด์ฉํ์ฌ ๋ชจ๋ ์์ ๊ฑฐ๋๋ก์ ์ ์ฉ ๊ฐ๋ฅํ ๊ตฌ๊ฐ๋จ์์ ์์ ๊ฑฐ ์ฃผํํ๊ฒฝ์ ํ๊ฐํ๋ ๋ฐฉ๋ฒ๋ก ์ ์ ์ํ์๋ค. ์ฃผํ์พ์ ์ฑ ํ๊ฐ์งํ ๊ฐ๋ฐ์ ์ํด ์์ ๊ฑฐGPS์๋๊ณ๋ฅผ ์ฅ์ฐฉํ ์คํ์์ ๊ฑฐ๋ฅผ ์ด์ฉํ์ฌ๋๋ก์ ํ, ์ ํธ๊ต์ฐจ๋ก ๋ฐ ๊ณผ์๋ฐฉ์งํฑ์ ์ ๋ฌด ๋ฑ ์ฃผํํ๊ฒฝ์ด ๋ค๋ฅธ ์์ ๊ฑฐ๋๋ก์ ์๋์๋ฃ๋ฅผ ์์งํ์๋ค. ๋ถ์์๊ฐ๋์ ์์ ๊ฑฐ์ฃผํํ๊ฒฝํ๊ฐ๋ฅผ ์ํด ์์ ๊ฑฐ ์ฃผํ์๋ ๊ฐ์๋์ ๋ถ์ํ์ฌ ์ฃผํ์พ์ ์ฑ์ 0~1 ์ฌ์ด์ ๊ฐ์ผ๋ก ๊ณ๋ํํ CCI(Cycling Comfortability Index)๋ฅผ ๊ฐ๋ฐํ์๋ค. ์คํ๊ตฌ๊ฐ๋ณ๋ก ์ฐ์ถ๋ CCI๋ฅผ ๋ถ์ํ ๊ฒฐ๊ณผ, ์ฃผํ์พ์ ์ฑ์ ์ ํธ๊ต์ฐจ๋ก์ ์ข
๋จ๊ตฌ๋ฐฐ์ ์ํฅ์ ๋ง์ด ๋ฐ๋ ๊ฒ์ผ๋ก ๋ํ๋ฌ์ผ๋ฉฐ, ์ด๋ฅผ ๋ฐํ์ผ๋ก ๋๋กํ๊ฒฝ์ ๋ฐ๋ฅธ LOCC(Level of Cycling Comfortability)๋ฅผ ๋์ถํ์๋ค. ๋ณธ์ฐ๊ตฌ์ ๊ฒฐ๊ณผ๋ GPS์์ ๊ธฐ๋ฅผ ์ฅ์ฐฉํ ๊ณต๊ณต์์ ๊ฑฐ์ ์ ์ฉํ์ฌ ์์ ๊ฑฐ ๊ตํต์ ๋ชจ๋ํฐ๋ง ์์คํ
์ผ๋ก ๋ฐ์ ์ํค๋๋ฐ ์ ์ฉํ ๊ธฐ์ด์๋ฃ๋ก ํ์ฉ๋ ๊ฒ์ผ๋ก ๊ธฐ๋๋๋ค. | ํ ๋ชฉ๊ณตํ | null | http://dx.doi.org/ | kci_detailed_000166.xml | ||
ART001652570 | oai_dc | ์ง์
๊ตํต๋์ ๊ณ ๋ คํ ํ์ ๊ต์ฐจ๋ก Signal Metering ์ด์์ ๊ดํ ์ฐ๊ตฌ | A Study on Roundabout Signal Metering Operation by Considering Entry Lane's Traffic Volume | {
"journal_name": "ํ๊ตญ๋๋กํํ",
"publisher": null,
"pub_year": null,
"pub_month": null,
"volume": null,
"issue": null
} | [
"์์ฐ์(๊ณต์ฃผ๋ํ๊ต)"
] | ํ์ ๊ต์ฐจ๋ก(roundabout)๋ ์ฉ๋ ์ดํ์ ์ํ์์ ์ ๊ทผ๋ก๋ณ ๊ตํต๋ฅ๊ฐ ๊ท ๋ฑํ ๊ฒฝ์ฐ ๊ธฐ์กด ์ ํธ๊ต์ฐจ๋ก์ ๋นํด ์ด์ํจ์จ์ฑ์ด ์ฆ๋๋๋ ํ ์ง์ด์ฉ๋ณํ๋ก ๊ตํต๋์ด ์ฆ๊ฐํ๋ฉด์ ์ ๊ทผ๋ก๋ณ ๊ตํต๋ฅ๊ฐ ๋ถ๊ท ๋ฑ ํด์ง ๊ฒฝ์ฐ(์ฐจ๋ก ๋น 450๋/์ ์ด์) ์ฃผ์ ๊ทผ๋ก์์ ํ์ ๊ต์ฐจ๋ก ๋ด๋ถ๋ก์ ์ง์
์ด ์ด๋ ค์์ ธ ํจ์จ์ฑ์ด ๋จ์ด์ง๊ฒ ๋๋ค. ๋ณธ ์ฐ๊ตฌ์์๋ 1์ฐจ๋กํ 4์ง ํ์ ๊ต์ฐจ๋ก๋ฅผ ๋์์ผ๋ก ํ์ ๊ต์ฐจ๋ก ์ค์น์ดํ ๊ตํต๋ ์ฆ๊ฐ๋ก ์ ํธ๊ต์ฐจ๋ก ์ค์น์ ๋ํ ์ฌ๊ฒํ ๋ฅผ ํ๊ธฐ ์ ์ ํ์ ๊ต์ฐจ๋ก๋ฅผ ํจ์จ์ ์ผ๋ก ์ด์ํ ์ ์๋ Signal Metering ์ ํ๊ธฐ์ค ๋ฐ ์ด์๋ฐฉ๋ฒ์ ์ ์ํ๊ณ ํจ๊ณผ๋ถ์(์ง์ฒด ๋ฐ ๋๊ธฐํ๋ ฌ)์ SIDRA๋ฅผ ํ์ฉํ์๋ค. ๋ณธ ์ฐ๊ตฌ๊ฒฐ๊ณผ ์ด ์ง์
๊ตํต๋์ด 1,800~2,000pcu/์ ์ด๊ณ ์ฃผ์ ๊ทผ๋ก์ ์ง์
๊ตํต๋๋น๊ฐ 60~70%์ผ ๋ ์ง์ฒด๋ 30~40% ๊ทธ๋ฆฌ๊ณ ๋๊ธฐํ๋ ฌ์ 30~60% ๊ฐ์ํ์๋ค. ๋ํ ์ฃผ์ ๊ทผ๋ก์ ๊ฐ์ฅ ์ธ์ ํ ๋ถ์ ๊ทผ๋ก์ Metered Approach๋ฅผ ์ค์นํ๊ณ ํ ์(pair)์ผ๋ก ๋ฌถ์ด์ ์ด์ํ๋ ๊ฒ์ดํจ๊ณผ์ ์ธ ๊ฒ์ผ๋ก ๋ถ์๋์๋ค. | ํ ๋ชฉ๊ณตํ | null | http://dx.doi.org/ | kci_detailed_000166.xml | ||
ART001652566 | oai_dc | ๊ทธ๋ํ์ด๋ก ์ ์ด์ฉํ ๋๋กํ์ง์ ํผ๋์ ๋ ํ๊ฐ | An Extent Estimation Caused by Road Sign Using Graphic Theory | {
"journal_name": "ํ๊ตญ๋๋กํํ",
"publisher": null,
"pub_year": null,
"pub_month": null,
"volume": null,
"issue": null
} | [
"์ ๊ท์(ํ๊ตญ๊ฑด์ค๊ธฐ์ ์ฐ๊ตฌ์)"
] | ๋๋กํ์ง๋ ๋๋ก์ ์ํํ ์ํต์ ์ํด ์ด์ ์์๊ฒ ์๋ด๋ฅผ ์ํ ์ ๋ณด๋ฅผ ์ ๊ณตํ๋ ์์ค๋ฌผ๋ก์จ, ์ค์น ๋ฐ ๊ด๋ฆฌ๊ธฐ์ค์ ๋๋ก๋ฒ์ 57์กฐ ๋ฐ ๊ตญํ ํด์๋ถ์ฅ๊ด๋ น์ธ ๋๋กํ์ง๊ท์น์ผ๋ก ์ ํ๊ณ ์๋ค. ํ์ง๋ง ๋๋กํ์ง๊ท์น์์ ์ ํ๋ ์ฌํญ์ ๋ํด ์ค์ํ์ง ์์๊ฒฝ์ฐ์ ์์ธ์ฌํญ์ ๊ณผ๋ค ์ ์ฉํ๋ ๊ฒฝ์ฐ๊ฐ ์ข
์ข
๋ฐ์ํ์ฌ ๋๋กํ์ง์ ํผ๋์ ๋๋ฅผ ์ผ๊ธฐํ๊ฒ ๋๋ค. ์ด๋ฅผ ํฌํจํ์ฌ, ๋๋ก๋ช
์๋ดํ์ง, ์ถ๊ตฌ์ค์ฌ ๋๋กํ์ง ๋ฑ ๋ค์ํ ๋๋กํ์ง๋ ์ด์ ์์๊ฒ ์ดํดํ๊ธฐ ์ด๋ ค์ด ๊ฒ์ผ ์ ์์ผ๋ฉฐ, ๊ทธ์ ๋ฐ๋ฅธ ํผ๋์ ๋๊ฐ ๋์์ง ์์๋ค. ๋ณธ ์ฐ๊ตฌ์์๋ ๋๋กํ์ง ์ค ๋์์ง์ญ์ ๋ฐฉํฅํ์ง๋ฅผ ๋์์ผ๋ก ํ์ฌ ํผ๋์ ๋๋ฅผ ์ ๋ฐ์ํฌ ์ ์๋ ๋๋กํ์ง์ ์์๋ฅผ ์ ์ํ๊ณ , ์ ๋ณดํ๊ธฐ ํ์ ๊ฐ์๋ฅผ ์ฐ์ถํ์์ผ๋ฉฐ, ํผ๋์ ๋ ์ธ์๋ฅผ ๊ทธ๋ํ ์ด๋ก ์ ํตํด ๋ชจํํํ์๋ค. ๋ํ, ๊ทธ์ ๋ฐ๋ฅธ ๋๋กํ์ง์ํผ๋์ ๋๋ฅผ ์์ธกํ์๋ค. ๊ต์ฐจ๋ก๋ณ ํผ๋์ ๋์ ๊ฐ๊ณผ 3๋
๊ฐ ๊ตํต์ฌ๊ณ ํต๊ณ์๋ฃ์์ ๋น๊ต๋ฅผ ํตํด ๋๋กํ์ง์ ํผ๋์ ๋๊ฐ ๊ตํต์๋ฏธ์น๋ ์ํฅ์ ๋ํด ์ ์ํ์๋ค. | ํ ๋ชฉ๊ณตํ | null | http://dx.doi.org/ | kci_detailed_000166.xml | ||
ART001652551 | oai_dc | ๋๋ฅํ์์ ์ด์ฉํ ๊ณ ์๋๋ก ํฉ๋ฅ๋ถ์ ์ํฅ๊ถ ์ธ๋ถํ ์ฐ๊ตฌ | Analysis on Propagation of Highway Traffic Flow Turbulence at Entrance-Ramp Junctions | {
"journal_name": "ํ๊ตญ๋๋กํํ",
"publisher": null,
"pub_year": null,
"pub_month": null,
"volume": null,
"issue": null
} | [
"๊นํํ(์ฐ์ธ๋ํ๊ต); ๋
ธ์ฐฝ๊ท (์ฐ์ธ๋ํ๊ต); ๊น์๊ธธ(์ฐ์ธ๋ํ๊ต); ์๋ด์(์ฐ์ธ๋ํ๊ต)"
] | ๋ณธ ์ฐ๊ตฌ์ ๋ชฉ์ ์ ๋์๊ณ ์๋๋ก ํฉ๋ฅ๋ถ์ ํน์ฑ ๋ฐ ์ค์ ๊ตํต์ํฉ์ ๊ณ ๋ คํ์ฌ ๊ฐ ์ฐจ๋ก๋ณ, ๊ตฌ๊ฐ๋ณ๋ก ์ํฅ๊ถ์ ๋ถ์ํ๋ ๊ฒ์๋ชฉ์ ์ผ๋ก ํ์๋ค. ํฅํ์๋ ๋ณธ ์ฐ๊ตฌ๊ฒฐ๊ณผ๋ฅผ ๋ฐํ์ผ๋ก ์ฐจ๋ก์ ์ด์์คํ
(Lane Control System, LCS) ๋ฑ ์ด์ ์ ์ ๋ณด์ ๊ณต์๋น์ค๋ฐ ์ฒจ๋จ๊ธฐ์ ์ ์ ์ฉํ์ฌ ํจ์จ์ ์ธ ๋๋ก์ด์ฉ์ ํตํ ์ํํ ์ดํ์ํ์ ์ง๊ฐ ๊ฐ๋ฅํ ๊ฒ์ด๋ค. ๋ณธ ์ฐ๊ตฌ์์๋ ์๋์ ํ์คํธ์ฐจ๋ฅผ๊ธฐ์ค์ผ๋ก ๊ณ ์๋๋ก ํฉ๋ฅ๋ถ์ ๋๋ฅํ์์ ๋ถ์ํ ๊ธฐ์กด์ฐ๊ตฌ๋ฅผ ๊ธฐ๋ฐ์ผ๋ก, ๋๋ฅํ์ ๋ฐ์์ ๋๋ฅผ ๊ธฐ์ค์ผ๋ก ํ ์ธ๋ถํ๋ ํฉ๋ฅ๋ถ ์ํฅ๊ถ์ ๋์ถํ์๋ค. ๋๋ฅํ์์ ๊ธฐ์ค์ผ๋ก ๋์ถํ ํฉ๋ฅ๋ถ ์ํฅ๊ถ์ ํฉ๋ฅ์ง์ ์ ์ค์ฌ์ผ๋ก ํฉ๋ฅ์ง์ ๊ณผ ์ ์ฌํ ๊ตํต๋ฅ ํน์ฑ์ ๋ณด์ด๋ ๊ตฌ๊ฐ์ ํฉ๋ฅ์ ์ง์ ์ํฅ๊ถ์ผ๋ก ๋์ถํ์์ผ๋ฉฐ, ๋์ถ๋ ๊ฒฐ๊ณผ๋ ์๋ฅ๋ถ 300m์์ 500m๊ตฌ๊ฐ์ 1, 2, 3์ฐจ๋ก, ํฉ๋ฅ์ง์ ์์300m์ง์ ๊น์ง์ ์ ์ฐจ๋ก ๋ฐ ํ๋ฅ๋ถ 100m์ง์ ๊น์ง์ ์ ์ฐจ๋ก, ํ๋ฅ๋ถ 100m์์ 300m๊ตฌ๊ฐ์ 2, 3์ฐจ๋ก๋ก ๋ถ์๋์๋ค. | ํ ๋ชฉ๊ณตํ | null | http://dx.doi.org/ | kci_detailed_000166.xml | ||
ART001812355 | oai_dc | ๊ธฐ์์๋ฃ๋ฅผ ํ์ฉํ ๋๋กํ์ง ๊ฒฐ๋ก์ ์ง์ญ๋ณ ๋ฐ์๊ฐ๋ฅ์ฑ ๋ถ์ | Regional Analysis of Dew Possibility in Road Sign Using Meteorological Data | {
"journal_name": "ํ๊ตญ๋๋กํํ",
"publisher": null,
"pub_year": null,
"pub_month": null,
"volume": null,
"issue": null
} | [
"์ค์ธ์ฐฝ(์์ฃผ๋ํ๊ต); ๊น์ ๋ฏผ(์์ฃผ๋ํ๊ต); ์ต๊ธฐ์ฃผ(์์ฃผ๋ํ๊ต); ์์๋ฏธ(์์ฃผ๋ํ๊ต)"
] | PURPOSES: This study analyzed the regional dew possibility in road sign using meteorological data.
METHODS: Four years of meteorological data such as temperature, humidity, dew point, wind velocity were collected and analyzed. As a result of literature review, dew was frequent in large diurnal range, high humidity and weak wind. So, dew possibility was analyzed by (temperature-dew point โค 1โ and wind velocity โค 1.5m/s).
RESULTS: The possibility was analyzed for each meteorological observation point and the point of Suncheon and Bonghwa were selected as the most likely points of dew in road sign. The area of East Coast, Kyungbuk and Kyungnam were relatively low potential.
CONCLUSIONS: Alternative with high effect of preventing dew should be selected in high possibility dew area despite of low economics | ํ ๋ชฉ๊ณตํ | null | kci_detailed_000166.xml | |||
ART001812349 | oai_dc | ์ค์๋ฒ์ค์ ์ฉ์ฐจ๋ก๊ฐ ์ค์น๋ ๊ฐ์ ๋๋ก์ ์๋น์ค์์ค ๋ถ์๋ฐฉ๋ฒ์ ๊ดํ ์ฐ๊ตฌ | A Study of Level of Service Analysis Method of Arterials including Exclusive Median Bus Lanes | {
"journal_name": "ํ๊ตญ๋๋กํํ",
"publisher": null,
"pub_year": null,
"pub_month": null,
"volume": null,
"issue": null
} | [
"์กฐํ์ (ํ๊ตญ๊ตํต์ฐ๊ตฌ์); ๊นํํ(ํ๊ตญ๊ตํต์ฐ๊ตฌ์)"
] | PURPOSES: The purpose of this paper is to develop a methodology to estimate level of service of arterial including Exclusive Median Bus Lanes.
METHODS: On 6 Exclusive Median Bus Lanes routes in Seoul, bus travel time and number of bus-stop per km were investigated. Also whether or not passing lane exists at bus-stop was checked. Based on the data from sites, bus travel time was estimated according to length of segment, number of bus-stop per km and whether or not passing lane exists at bus-stop.
RESULTS : A bus travel time table was developed according to length of segment, number of bus-stop per km and whether or not passing lane exists at bus-stop. After bus travel speed and passenger car travel speed is estimated based on each travel time table and length of segment,two speeds are combined with weighted average speed using traffic volume of each lane group. Then weighted average speed is a measure of effectiveness of arterial including Exclusive Median Bus Lanes.
CONCLUSIONS: It can be concluded that the proposed methodology can estimate level of service of arterial including Exclusive Median Bus Lanes considering the operation characteristics of Exclusive Median Bus Lanes. | ํ ๋ชฉ๊ณตํ | null | kci_detailed_000166.xml | |||
ART001812354 | oai_dc | ๊ฒฐ๋ก ๋ฐ์ ๋๋กํ์ง๊ฐ ์ด์ ์์๊ฒ ๋ฏธ์น๋ ์ํฅ์ ๊ดํ ์ฐ๊ตฌ | Study of the Influence of Condensation on Road Signs to Drivers | {
"journal_name": "ํ๊ตญ๋๋กํํ",
"publisher": null,
"pub_year": null,
"pub_month": null,
"volume": null,
"issue": null
} | [
"๋ฐ์ฌํ(ํ๊ตญ๊ฑด์ค๊ธฐ์ ์ฐ๊ตฌ์); ์ค๋๊ทผ(ํ๊ตญ๊ฑด์ค๊ธฐ์ ์ฐ๊ตฌ์); ์ฑ์ ๊ณค(ํ๊ตญ๊ฑด์ค๊ธฐ์ ์ฐ๊ตฌ์); ๊ฐ์์(ํ๊ตญ๊ฑด์ค๊ธฐ์ ์ฐ๊ตฌ์)"
] | PURPOSES: This research is to analyze the influence in terms of misreading rate and legibility time for drivers when condensation occurs on the road signs.
METHODS: In this research, the dew occurred road signs provided to drivers to measure legibility time and misreading rate to compare with normal road sign. In order to identify the difference of legibility time between normal road sign and dew occurred road sign, the T-test and ANOVA test were used. And the vision system was used to recognize the region of dew occurrence on the road sign, then the brightness of dew occurrence region on the road sign was changed to check the misreading rate of drivers according to the change rate of brightness.
RESULTS: The legibility times were measured 2.65s for normal road sign and 4.08s for dew occurrence road sign and misreading rates were measured 2.8% for normal road sign, 21.7% for dew occurrence road sign. | ํ ๋ชฉ๊ณตํ | null | kci_detailed_000166.xml | |||
ART001812348 | oai_dc | ๊ต์ฐจ๋ก ํํ์ ๋ฐ๋ฅธ ์ฐจ๋ ๋น ํ์๊ฐ์ค ๋ฐฐ์ถ๋ ๋น๊ต | VehiclesโCO2 Emissions by Intersection Types | {
"journal_name": "ํ๊ตญ๋๋กํํ",
"publisher": null,
"pub_year": null,
"pub_month": null,
"volume": null,
"issue": null
} | [
"๊น๋ค์(๊ฒฝ๊ธฐ๋ํ๊ต); ์คํฅ์ด(๊ฒฝ๊ธฐ๋ํ๊ต)"
] | PURPOSES: The present paper is to compare vehiclesโCO2 emissions in roundabouts and signalized intersections.
METHODS: The present paper uses the SIDRA software with variables of traffic and road conditions.
RESULTS: The results of the study are as follows : First, when entering traffic volumes are more than 1600pcph, vehicleโs CO2 emissions in roundabouts are lower than those of signalized intersections regardless of the left turn ratio. Second, When entering traffic volumes are more than 2800pcph, vehiclesโs CO2 emissions in 2-lane approaches are lower than those of 1-lane approaches in signalized intersection. Third, when entering traffic volumes are more than 1600pcph, vehicleโs CO2 emissions of CASE B are lowest. (CASE B is the condition with one exclusive left-turn lane and one exclusive straight lane and one shared straight lane with right-turn.) Also, CASE A is the condition that vehicleโs CO2emissions in roundabouts are lower than those of signalized intersections between 1600pcph and 3600pcph. (CASE A is the condition with one exclusive left-turn lane and one shared straight lane with right-turn.) But, when entering traffic volumes are more than 4000pcph, vehicleโs CO2emissions in signalized intersections is lower than those of roundabouts.
CONCLUSIONS: It may be concluded that vehicleโs CO2 emissions on roundabouts are much lower than those of signalized intersections,especially, when entering traffics volumes are between 1600pcph and 3600pcph in 1-lane or 2-lane approaches. | ํ ๋ชฉ๊ณตํ | null | kci_detailed_000166.xml | |||
ART001812358 | oai_dc | ์์ต์ง์ฒด๊ตฌ๊ฐ ๊ฒฐ์ ์ ์ํ ์ผ๊ด์ฑ ์๋น์ค์ง์(CSI) ๊ฐ๋ฐ | Development of Consistency Service Index for Deciding Habitual Congestion Section | {
"journal_name": "ํ๊ตญ๋๋กํํ",
"publisher": null,
"pub_year": null,
"pub_month": null,
"volume": null,
"issue": null
} | [
"์ด๊ธฐ์(ํ๊ตญ๋๋ก๊ณต์ฌ ๋๋ก๊ตํต๊ธฐ์ ์); ์ต๊ธฐ์ฃผ(์์ฃผ๋ํ๊ต); ์๋ฒ์(ํ๊ตญ๋๋ก๊ณต์ฌ); ๊นํ๊ณค(๋จ๊ฒฝE&C); ์ด์ญ๋ด(ํ๊ตญ๋๋ก๊ณต์ฌ ๋๋ก๊ตํต์ฐ๊ตฌ์)"
] | PURPOSES: In order to do an improving countermeasures for congestion on the highway with a limited budget, it is very important to select a habitual congestion section effectively. This study is develop CSI(Consitency Service Index) which contained the service for drivers on the highway to select a habitual congestion section.
METHODS: By applying the concept of service for the users paying a fee, proposed CSI(Consistency Service Index) to determine habitual delay. CSI is mean that users using the highway road must be provided an environment which can driving more than 80kph, anytime,anywhere.
RESULTS: The result applying developed method in this study included most of congestion sections selected by conventional method. but,in some section of existing non-congestion section were included by CSI. The annual average speed and CSI correlation analysis result was high correlation. This result proved that CSI was reflecting road traffic condition well.
CONCLUSIONS : It was verified practicality from the delay section of gyeonggi-do area highway. we can judge whether or not to be a habitual congestion in the specific highway and do the traffic improving countermeasures accordingly. | ํ ๋ชฉ๊ณตํ | null | kci_detailed_000166.xml |
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