Split (1)

train · 617k rows

text stringlengths 2 132k	source dict
Ph.D. Dissertation. The University of California at Davis. 1999. 19. Hultgren, L. and K. Kawada. San Diego ’s Interstate 15 High-Occupancy/Toll Facility Using Value Pricing. Institute of Transportation Engineers Journal, June 1999. 20. Supernak. San Diego State University, Task 3.2.2 Report, May 1998. 21. Deakin, E. Ur...	{ "page_id": null, "source": 7320, "title": "from dpo" }
a Case for HOT Lanes: A New Approach to Reducing Urban Highway Congestion. Reason Public Policy Institute, Policy Study No. 257, 1999. 33. Mekky, Ali. Forecasting Toll Revenues for Fully Electronic Highways Operating Under Transponder and Video Imaging Systems . Transportation Research Board. 1999. 34. Muller, Robert H...	{ "page_id": null, "source": 7320, "title": "from dpo" }
Institute of Public Affairs in cooperation with the Minnesota Department of Transportation. Claremont, California, November 1997. 43. Gomez-Ibanez, Jose A. and Kenneth A. Small. “Road Pricing for Congestion Management: A Survey of International Practice. ” National Cooperative Highway Research Program: Synthesis of Hig...	{ "page_id": null, "source": 7320, "title": "from dpo" }
Title: Design Manual M 22-01 June 2006 URL Source: Markdown Content: # Design Policy and Standards Revisions # Design Manual – May /June 2006 Revisions # The Revision starts after page 5 of this document Revision marks are used throughout the manual to highlight content changes. These consist of sidebars, and underlin...	{ "page_id": null, "source": 7320, "title": "from dpo" }
to include Design Manual Supplements dated March 25, 2004 and June 29, 2004. • Stopping Sight Distance revised to use 2001 values with a 2.00 ft object height. • Superelevation rate revised to use the minimum radius equation when existing pavement remains. • Ramp widths revised using AASHTO Exhibit 3-55. • Chapter refo...	{ "page_id": null, "source": 7320, "title": "from dpo" }
some systems Chapter 830 Delineation May 2006 Revision: • Changed to bring into conformity with MUTCD & to reflect organizational changes in WSDOT • Chapter rewritten; no revision marks were included Chapter 910 Intersections At Grade May 2006 Revision: • List of information to be included on Intersection Plan was repl...	{ "page_id": null, "source": 7320, "title": "from dpo" }
document: Understanding Flexibility in Transportation Design – Washington . Chapter 1410 Right of Way Considerations May 2006 Revision : • Updated WSDOT R/W policies and procedures to reflect WSDOT organizational changes. Chapter 1425 Interchange Justification Report (Previously Access Point Decision Report) May 2006 R...	{ "page_id": null, "source": 7320, "title": "from dpo" }
Design Manual holders Publication Title Publication Number Design Manual (English) Revision 2006-1 M 22-01 Originating Organization Environmental and Engineering Service Center, Design Office, Design Policy, Standards, and Safety Research Unit through Engineering Publications Remarks: Additional copies may be purchased...	{ "page_id": null, "source": 7320, "title": "from dpo" }
“Auxiliary Lanes” 1 – 14 7 1 – 14 7 Page 1 of 2 Remove Insert Chapter Pages Sheets Pages Sheets 1025, “Pedestrian Design Considerations” 1 – 19 10 1 – 24 12 1410, “Right of Way Considerations” 1 – 6 3 1 – 6 3 1425, “Interchange Justification Report” previously known as “Access Point Decision Report” 1 – 15 8 1 – 16 8 1...	{ "page_id": null, "source": 7320, "title": "from dpo" }
Page 1 > Date ## Division 1 General Information Chapter 100 Manual Description June 2005 100.01 Purpose 100.02 Presentation and Revisions 100.03 Design Manual Applications 100.04 How the Design Manual is to be Used 100.05 The Project Development Process 100.06 How the Design Manual is Organized Chapter 120 Planning Jan...	{ "page_id": null, "source": 7320, "title": "from dpo" }
Matrix Procedures January 2005 325.01 General (325-15 June 2005) 325.02 Selecting a Design Matrix 325.03 Using a Design Matrix Design Manual M 22-01 Contents May 2006 Page > Date Chapter 330 Design Documentation, Approval, and Process Review May 2006 330.01 General 330.02 References 330.03 Definitions 330.04 Design D...	{ "page_id": null, "source": 7320, "title": "from dpo" }
12 and 13 May 2004) 530.02 References 530.03 Geosynthetic Types and Characteristics 530.04 Geosynthetic Function Definitions and Applications 530.05 Design Approach for Geosynthetics 530.06 Design Responsibility 530.07 Documentation Design Manual M 22-01 Contents May 2006 Page > Date ## Division 6 Geometrics Chapter ...	{ "page_id": null, "source": 7320, "title": "from dpo" }
Safety May 2006 700.01 General 700.02 References 700.03 Definitions 700.04 Clear Zone 700.05 Hazards to Be Considered for Mitigation 700.06 Median Considerations 700.07 Other Roadside Safety Features 700.08 Documentation Chapter 710 Traffic Barriers January 2005 710.01 General 710.02 References 710.03 Definitions 710.0...	{ "page_id": null, "source": 7320, "title": "from dpo" }
January 2005 910.01 General (910-1 through 14 May 2006) 910.02 References (910-25 through 28 May 2006) 910.03 Definitions (910-38 May 2006) 910.04 Design Considerations 910.05 Design Vehicle 910.06 Right-Turn Corners 910.07 Channelization 910.08 Roundabouts 910.09 U-Turns 910.10 Sight Distance at Intersections 910.11 T...	{ "page_id": null, "source": 7320, "title": "from dpo" }
1010.06 Slow-Moving Vehicle Turnouts 1010.07 Shoulder Driving for Slow Vehicles 1010.08 Emergency Escape Ramps 1010.09 Chain-Up Areas 1010.10 Documentation Contents Design Manual M 22-01 Page 10 May 2006 > Date Chapter 1020 Bicycle Facilities May 2001 1020.01 General (1020-25 and 26 September 2002) 1020.02 References 1...	{ "page_id": null, "source": 7320, "title": "from dpo" }
1110.01 General 1110.02 References 1110.03 Required Data for All Structures 1110.04 Additional Data for Waterway Crossings 1110.05 Additional Data for Grade Separations 1110.06 Additional Data for Widenings 1110.07 Documentation Chapter 1120 Bridges January 2005 1120.01 General 1120.02 References 1120.03 Bridge Locatio...	{ "page_id": null, "source": 7320, "title": "from dpo" }
Interchange Justification Report May 2006 1425.01 General 1425.02 References 1425.03 Definitions 1425.04 Procedures 1425.05 Interchange Justification Report and Supporting Analyses 1425.06 Documentation Chapter 1430 Limited Access December 2003 1430.01 General 1430.02 Achieving Limited Access 1430.03 Full Control (Most...	{ "page_id": null, "source": 7320, "title": "from dpo" }
January 2005 140-5 Risk Probability – Impact Matrix 140-9 January 2005 140-6 Using MPD Iteratively 140-16 January 2005 141-1a Determination of the Roles and Responsibilities for Projects with Structures (Project Development Phase) 141-2 May 2006 141-1b Determination of the Roles and Responsibilities for Projects with S...	{ "page_id": null, "source": 7320, "title": "from dpo" }
Line) 325-11 January 2005 325-4 Design Matrix 2 Interstate Interchange Areas 325-12 January 2005 325-5 Design Matrix 3 Main Line NHS Routes (Except Interstate) 325-13 January 2005 325-6 Design Matrix 4 Interchange Areas, NHS (Except Interstate) and Non-NHS 325-14 January 2005 325-7 Design Matrix 5 Main Line Non-NHS Rou...	{ "page_id": null, "source": 7320, "title": "from dpo" }
Design Level 430-9 May 2006 430-10 Multilane Highways and Bridges, Modified Design Level 430-1 0 May 2006 430-11 Two-Lane Highways and Bridges, Modified Design Level 430-1 1 May 2006 430-12a Minimum Total Roadway Widths for Two-Lane Two-Way Highway Curves, Modified Design Level 430-1 2 May 2006 430-12b Minimum Total Ro...	{ "page_id": null, "source": 7320, "title": "from dpo" }
Base and Surfacing Quantities 520-11 January 2005 520-5f Estimating - Base and Surfacing Quantities 520-12 January 2005 520-5g Estimating - Base and Surfacing Quantities 520-13 January 2005 520-5h Estimating - Base and Surfacing Quantities 520-14 January 2005 530-1 Selection Criteria for Geotextile Class 530-3 April 19...	{ "page_id": null, "source": 7320, "title": "from dpo" }
640-8 January 2005 640-3 Two-Lane Highway Roadway Sections 640-9 January 2005 640-4a Ramp Roadway Sections 640-10 January 2005 640-4b Ramp Roadway Sections 640-11 January 2005 640-5a Shoulder Details 640-12 January 2005 640-5b Shoulder Details 640-13 January 2005 640-6a Divided Highway Median Sections 640-14 June 2005 ...	{ "page_id": null, "source": 7320, "title": "from dpo" }
Date 642-6a Superelevation Transitions for Ramp Curves 642-14 January 2005 642-6b Superelevation Transitions for Ramp Curves 642-15 January 2005 650-1 Design Stopping Sight Distance 650-2 May 2006 650-2 Design Stopping Sight Distance on Grades 650-2 May 2006 650-3 Stopping Sight Distance on Grades 650-3 May 2006 650-4 ...	{ "page_id": null, "source": 7320, "title": "from dpo" }
710-20 January 2005 710-11a Barrier Length of Need 710-21 January 2005 710-11b Barrier Length of Need 710-22 January 2005 710-11c Barrier Length of Need on Curves 710-23 January 2005 710-11d W-Beam Guardrail Trailing End Placement for Divided Highways 710-24 January 2005 710-12 Beam Guardrail Post Installation 710-25 J...	{ "page_id": null, "source": 7320, "title": "from dpo" }
Wood Box Posts 820-9 November 1999 830-1 Pavement Marking Material Guide 830-9 May 2006 830-2 Guidepost Placement 830-10 May 2006 840-1 Freeway Lighting Applications 840-9 December 2003 840-2 Freeway Lighting Applications 840-10 December 2003 840-3 Roadway Lighting Applications 840-11 December 2003 840-4 Roadway Lighti...	{ "page_id": null, "source": 7320, "title": "from dpo" }
910-2 Design Vehicle Types 910-4 May 2006 910-3 Intersection Design Vehicle 910-5 May 2006 910-4 Left-Turn Storage With Trucks (ft) 910-7 May 2006 910-5 U-Turn Spacing 910-11 May 2006 910-6a Turning Path Template 910-15 January 2005 910-6b Turning Path Template 910-16 January 2005 910-6c Turning Path Template 910-17 Ja...	{ "page_id": null, "source": 7320, "title": "from dpo" }
915-11 May 2004 915-7 Roundabout Categories Design Characteristics 915-17 January 2005 915-8 Approximate Entry Capacity 915-18 January 2005 915-9a Deflection Path 915-19 May 2004 915-9b Deflection Path 915-20 May 2004 915-10 Deflection Path Radius 915-21 May 2004 915-11 Entry and Exit 915-22 January 2005 915-12 Path Ov...	{ "page_id": null, "source": 7320, "title": "from dpo" }
940-26 September 2002 940-12c Off-Connection (Single-Lane, One-Lane Reduction) 940-27 September 2002 940-12d Off-Connection (Two-Lane, Taper Type) 940-28 January 2005 940-12e Off-Connection (Two-Lane, Parallel Type) 940-29 September 2002 940-13a Collector Distributor (Outer Separations) 940-30 September 2002 Design Man...	{ "page_id": null, "source": 7320, "title": "from dpo" }
Sections 1020-20 May 2001 1020-16 Bikeways on Highway Bridges 1020-21 May 2001 1020-17 Refuge Area 1020-22 May 2001 1020-18 At-Grade Railroad Crossings 1020-23 May 2001 1020-19 Stopping Sight Distance 1020-24 May 2001 1020-20 Sight Distance for Crest Vertical Curves 1020-25 September 2002 1020-21 Lateral Clearance on H...	{ "page_id": null, "source": 7320, "title": "from dpo" }
to Vehicle Weighing and Equipment Inspection Facilities on State Highways 1040-13 May 2000 1040-8b MOU Related to Vehicle Weighing and Equipment Inspection Facilities on State Highways 1040-14 May 2000 1040-8c MOU Related to Vehicle Weighing and Equipment Inspection Facilities on State Highways 1040-15 May 2000 1040-8d...	{ "page_id": null, "source": 7320, "title": "from dpo" }
Signing 1055-26 June 2005 1060-1 M Bus Berth Designs 1060-14 March 1994 1060-2 Transit Center Sawtooth Bus Berth Design Example 1060-15 December 1991 1060-3 M Bus Turnout Transfer Center 1060-16 March 1994 1060-4 M Off-Street Transfer Center 1060-17 March 1994 1060-5 M Minimum Bus Zone Dimensions 1060-18 March 1994 106...	{ "page_id": null, "source": 7320, "title": "from dpo" }
Prefabricated Modular Gravity Walls 1130-23 December 1998 Contents Design Manual M 22-01 Page 26 May 2006 > Figure Number Title Page Last Date 1130-1c Typical Rigid Gravity, Semigravity Cantilever, Nongravity Cantilever, and Anchored Walls 1130-24 May 2003 1130-1d Typical Rockery and Reinforced Slope 1130-25 May 2003 1...	{ "page_id": null, "source": 7320, "title": "from dpo" }
May 2006 1440-2 Report of Survey Mark 1440-6 May 2006 1450-1 Monument Documentation Summary 1450-5 May 2006 1450-2a DNR Permit Application 1450-6 May 2006 1450-2b DNR Completion Record Form 1450-7 May 2006 1450-3a Land Corner Record 1450-8 May 2006 1450-3b Land Corner Record 1450-9 May 2006 Design Manual M 22-01 Projec...	{ "page_id": null, "source": 7320, "title": "from dpo" }
chapters and the Bridge Design Manual for design procedures. The primary objective of this process is to provide a consistent means of selecting a bridge design team to perform all or part of the structural design work, whether it be a consultant or the WSDOT Bridge and Structures Office. If the Local Agency will be re...	{ "page_id": null, "source": 7320, "title": "from dpo" }
Programmed for B&SO Revisit & Revise Written Letter or Agreement Legend No Is written letter or agreement on B&SO Level of Involvement Valid? Consultant Selection [Negotiation Flow Chart - Step 2] Proceed with Project Management On-Line Guide Yes No Consultant To Be Used? Yes Determine Consultant Level of Project Respo...	{ "page_id": null, "source": 7320, "title": "from dpo" }
Job Plan in Figure 315-1. Only the phases 1 and 7 are discussed in this chapter. A detailed discussion of phases 2 through 6 can be found in the VE training manual entitled Introduction To Value Engineering Principles and Practices . (1) Selection Phase (a) Project Selection Projects for VE studies may be selected from...	{ "page_id": null, "source": 7320, "title": "from dpo" }
Value Engineering Design Manual M 22-01 Page 315-2 May 2006 A VE study is required for any federally funded NHS project with an estimated cost of $25 million or more (CFR 23 Part 627). Other types of projects that usually provide the highest potential for value improvement have a preliminary estimate exceeding $ 5 mill...	{ "page_id": null, "source": 7320, "title": "from dpo" }
the regional Two-Year VE Study Plans and the HQ Study Plans to create the Statewide VE Study Plan. (c) VE Study Timing Selecting the project at the appropriate stage of development (the timing of the study) is very important to the success of the VE program. Value can be added by performing a VE study any time during p...	{ "page_id": null, "source": 7320, "title": "from dpo" }
have been made and the opportunity to affect the project design is limited. The VE study focuses on constructibility, construction sequencing, staging, traffic control elements, and any significant design issues that have been identified during design development. (d) Study Preparation To initiate a VE study, the proje...	{ "page_id": null, "source": 7320, "title": "from dpo" }
be selected from the regions, HQ , other state and federal agencies, local agencies, and the private sector. The team members are selected on the basis of the kinds of expertise needed to address the major functional areas and critical high-cost issues of the study. All team members must be committed to the time requir...	{ "page_id": null, "source": 7320, "title": "from dpo" }
included in the annual VE report to FHWA. The VE Decision Document is submitted to the State Design Engineer and a copy becomes a vital element in the design file for the project. Project development then continues based on the decisions developed from the preliminary engineering and the VE study recommendations (barri...	{ "page_id": null, "source": 7320, "title": "from dpo" }
M 22-01 Page 315-6 May 2006 Request for Value Engineering Study Figure 315-2 Project Title: SR No. MP to MP Length Subprogram PIN WIN Assigned Project Engineer Proposed Advertising Date Estimated Right of Way Costs Estimated Construction Costs Design Speed Projected ADT Route Conditions/Geometry: Adjacent Segments Over...	{ "page_id": null, "source": 7320, "title": "from dpo" }
as implemented in the design matrices (Chapter 325) Executive Order E 1010.00, “Certification of Documents by Licensed Professionals,” WSDOT Directional Documents Index, D 00-00, WSDOT Advertisement and Award Manual, M 27-02, WSDOT Hydraulics Manual , M 23-03, WSDOT Master Plan for Limited Access Highways, WSDOT Plans ...	{ "page_id": null, "source": 7320, "title": "from dpo" }
retention policy. For operational changes and developer projects, design documentation is required and is retained by the region office responsible for the project, in accordance with WSDOT records retention policy. All participants in the design process must provide the appropriate documentation for their decisions. #...	{ "page_id": null, "source": 7320, "title": "from dpo" }
to search for previously granted variances. The DVIS application can be accessed at: deviation A documented decision granting approval at project specific locations to differ from the design level specified in the Design Manual . See Figure 330-1. environmental documents: NEPA National Environmental Policy Act SEPA [W...	{ "page_id": null, "source": 7320, "title": "from dpo" }
decisions made, and any applicable documents listed in the Design Documentation Check List on the web. Design Manual M 22-01 Design Documentation, Approval, and Process Review May 2006 Page 330-3 See 330.04(2). The Design Documentation Package explains how and why the design was chosen, and documents approvals. See 330...	{ "page_id": null, "source": 7320, "title": "from dpo" }
need of the project and documents how the project addresses the purpose and need. The required content of the Design Documentation Package is identified in the Design Documentation Check List at: (2) Design Documents The Design Documentation Package portion of the project file preserves the decision documents generate...	{ "page_id": null, "source": 7320, "title": "from dpo" }
routes. Include, in the evaluation, only those design elements specifically impacted by the project. Although the following list illustrates some of the project types that do not require a DDS, the list is not intended to be a complete accounting of all such projects. Consult with the Project Control and Reporting offi...	{ "page_id": null, "source": 7320, "title": "from dpo" }
accident reduction potential, environmental impact, and economic development. Documentation requirements for an EU decision are similar to, but less demanding than, documentation requirements for a deviation. The cost of the improvement must always be considered when making EU decisions. EU examples on the Internet can...	{ "page_id": null, "source": 7320, "title": "from dpo" }
design level specified in the design matrices was not used • Explain which reference to the AASHTO Policy on Geometric Design of Highways and Streets was used (including the publication date, chapter, and page number of the policy) Approval is at the appropriate administrative level, as shown in Figures 330-2a and 330-...	{ "page_id": null, "source": 7320, "title": "from dpo" }
deviations. A change in a design level resulting from an approved Route Development Plan or corridor or project analysis, as specified in design matrix notes, is documented similar to an EU. Design elements that do not comply with the design level specified in an approved corridor or project analysis are documented as ...	{ "page_id": null, "source": 7320, "title": "from dpo" }
documentation. All projects involving FHWA action require NEPA clearance. Environmental action is determined through the Environmental Classification Summary (ECS) form. The environmental approval levels are shown in Figures 330-3a and 3b. Upon receipt of the ECS approval, for projects requiring an EA or EIS under NEPA...	{ "page_id": null, "source": 7320, "title": "from dpo" }
there is a change in the Project Summary, the information in the ERS must be reviewed and revised to match the new Project Summary. The ERS is prepared during the scoping phase and is approved by the region. Design Decisions Summary (DDS) states the design matrix used to develop the project, the roadway geometrics, des...	{ "page_id": null, "source": 7320, "title": "from dpo" }
change to an approved PD, process a Project Control Form for approval by the appropriate designee, revise the original PD form, and obtain approval of the revisions. ## 330.07 FHWA Approval For all NHS projects, the level of FHWA oversight varies according to the type of project, the agency doing the work, and the fund...	{ "page_id": null, "source": 7320, "title": "from dpo" }
Design Manual .If a project is delayed but is advertised within three years of the Design Approval, discuss Design Manual revisions with your Project Development Engineer, who will discuss the revisions with the appropriate Assistant State Design Engineer (ASDE) to determine if there is a need to redesign any portion o...	{ "page_id": null, "source": 7320, "title": "from dpo" }
and continuing through contract plans and (when available) construction records and change orders. Projects are normally selected after contract award. For projects having major traffic design elements, the Maintenance and Operations Programs’ Traffic Operations personnel are involved in the review. The WSDOT process r...	{ "page_id": null, "source": 7320, "title": "from dpo" }
(e) HQ Design Region Region National Highway System (NHS) Managed access highway outside incorporated cities and towns, or inside unincorporated cities and towns, or on a limited access highway (f) HQ Design Region Region Managed access highway within incorporated cities and towns (h) • Inside curb or EPS (i) • Outside...	{ "page_id": null, "source": 7320, "title": "from dpo" }
Outside curb or EPS (Matrix lines 5-8 through 5-26) N/A N/A HQ Design HQ H&LP Region N/A Region City/Town Preservation project on managed access highway outside incorporated cities and towns, or within unincorporated cities and towns, or on a limited access highway (j) (Matrix lines 5-1 through 5-7) N/A Region (k) Regi...	{ "page_id": null, "source": 7320, "title": "from dpo" }
Environmental Review Summary X Final Design Decisions Summary X X Final Project Definition X Access Point Decision Report X Non-Interstate Interchange Access Point Report X Interchange Plans X X Intersection Plans X X Right of Way Plans X Monumentation Map X Materials Source Report X Pavement Determination Rep...	{ "page_id": null, "source": 7320, "title": "from dpo" }
23 CFR 635.111. See M 23-03, Hydraulics Manual for additional guidance. Region to submit Hydraulic Report. Refer to Hydraulics Manual . Applies only to regions with a Landscape Architect. Applies only to regions without a Landscape Architect. Approved by State Traffic Engineer. Consult HQ Project Control & Report...	{ "page_id": null, "source": 7320, "title": "from dpo" }
Approvals > Figure 330-4 Design Documentation, Approval, and Process Review Design Manual M 22-01 Page 330-14 May 2006 Document Required for FHWA Oversight Project Definition X Design Decisions Summary X Environmental Review Summary X Design Variance Inventory (and supporting information for DEs, EUs not upgraded, and...	{ "page_id": null, "source": 7320, "title": "from dpo" }
Access or Limited Access (b) Accident Summary and Analysis (c) Design Using the Design Manual criteria • Description • Cost estimate • B/C ratio • Advantages and disadvantages • Reasons for considering other designs (d) Other Alternatives (may include “No-build” alternative) • Description • Cost estimate • B/C ratio • ...	{ "page_id": null, "source": 7320, "title": "from dpo" }
Safety Items of Work For basic design level (B), the following items of work are required: • Install and replace delineation in accordance with Chapter 830 • Install and replace rumble strips in accordance with the matrices and Chapter 700 • Adjust existing features that are affected by resurfacing, such as monuments, ...	{ "page_id": null, "source": 7320, "title": "from dpo" }
the Basic Design Level Design Manual M 22-01 Page 410-2 May 2006 design criteria specified in the “Rechannelize Existing Pavement” projects presented in Chapter 340. Consider the impacts to all roadways users. Consider illumination of these improvements. Document decisions when full illumination is not provided, includ...	{ "page_id": null, "source": 7320, "title": "from dpo" }
430-1 When the posted speed exceeds the design speed for existing geometric features that are to remain in place (curve radius, superelevation, sight distance, or other elements that the design speed controls) one of two choices must be made: When appropriate, work with the region Traffic Office to lower the posted spe...	{ "page_id": null, "source": 7320, "title": "from dpo" }
off connections, Chapter 940 Access control, Chapter 1420 Clear zone, Chapter 700 Signing, delineation, and illumination, Chapters 820, 830, and 840 Basic safety, Chapter 410 Structural capacity, Chapter 1120 Vertical clearance, Chapter 1120 Intersection sight distance, Chapter 910 Traffic Barriers, Chapter 710 •••••••...	{ "page_id": null, "source": 7320, "title": "from dpo" }
and horizontal alignment. A 2-foot object height is used for modified design level stopping sight distance evaluation. Figure 430-2 gives the minimum stopping sight distances allowed to remain in place. > Design Speed (mph) Design Stopping Sight Distance (ft) > 40 or less 155 45 200 50 250 55 305 60 360 65 425 70 495 7...	{ "page_id": null, "source": 7320, "title": "from dpo" }
distance is also increased. This results in a questionable benefit when the new sight distance is less than for full design level. Therefore, when the existing roadway is reconstructed to improve stopping sight distance, apply full design level criteria. (See Chapter 650.) > When sis less than L: > 2158 A2 > sL= > When...	{ "page_id": null, "source": 7320, "title": "from dpo" }
a project must not decrease the existing roadway width. Modified Design Level Design Manual M 22-01 > Page 430-4 May 2006 (1) Lane and Shoulder Width Lane and shoulder widths are shown in Figures 430-10 and 11 . Consider joint use with other modes of transportation in shoulder design. Minimum ramp lane and shoulder wid...	{ "page_id": null, "source": 7320, "title": "from dpo" }
design level criteria (See Chapter 640). The algebraic difference in cross slopes is an operational factor during a passing maneuver on a two-lane two-way roadway. Its influence increases when increased traffic volumes decrease the number and size of available passing opportunities. A somewhat steeper cross slope may b...	{ "page_id": null, "source": 7320, "title": "from dpo" }
slope correction is not required on the basis of algebraic differences alone. To maintain or restore curb height, consider lowering the existing pavement level and correcting cross slope by grinding before an asphalt overlay. The cross slope of the shoulder may be steepened to maximize curb height and minimize other re...	{ "page_id": null, "source": 7320, "title": "from dpo" }
ramps for compliance. Construct ADA compliant sidewalk ramps as required. On Interstate Pavement Rehab./Resurface projects (See Chapter 325) that include HMA or PCCP overlays, or inlays on ramps or crossroads, sidewalk ramps must be addressed for ADA compliance. Other bicycle or pedestrian elements are design exception...	{ "page_id": null, "source": 7320, "title": "from dpo" }
from Figure 430-7 or from the field review. (2) Angle The allowable angle between any two respective legs is between 60° and 120°. When realignment is required to meet this angle requirement, consider realigning to an angle between 75°and 105°. Intersection Type Design Vehicle Junction of Major Truck Routes WB-67 Junct...	{ "page_id": null, "source": 7320, "title": "from dpo" }
the distance from the roadway. See Figure 430-9b. > Lateral Clearance, M (ft) When the intersection of the lateral clearance (M) with the curve radius (R) falls above the curve for the selected design speed, modified design criteria is met. Evaluation for Stopping Sight Distance for Horizontal Curves, Modified Design L...	{ "page_id": null, "source": 7320, "title": "from dpo" }
ft 4 ft 2 ft 4 ft 2 ft 4 ft 2 ft Shoulder Width Right (3) Left (4) 4 ft 2 ft 6 ft 2 ft 4 ft 2 ft 6 ft 2 ft 4 ft 6 ft (5) 4 ft 6 ft (5) Minimum Width for Bridges to Remain in Place (6) (7) (8) 24 ft (9) 26 ft (9) 24 ft (9) 26 ft (10) 48 ft (9) 50 ft (9) (11) 50 ft (9) (11) 54 ft (10) (11) Minimum Width for Rehabilitatio...	{ "page_id": null, "source": 7320, "title": "from dpo" }
limits requires deck treatment or thrie beam retrofit only. (8) For median widths 25 feet or less, see Chapter 1120. (9) Add 11 feet for each additional lane. (10) Add 12 feet for each additional lane. (11) Includes a 4-foot median, which may be reduced by 2 feet under urban conditions. (12) Use these widths when a bri...	{ "page_id": null, "source": 7320, "title": "from dpo" }
Highway Management Classification Report. Notes: (1) If current ADT is approaching a borderline condition, consider designing for the higher classification. (2) See Figures 430-12a and 12b for turning roadways. (3) Parking restriction recommended when ADT exceeds 7,500. (4) When a curb section is used, the minimum shou...	{ "page_id": null, "source": 7320, "title": "from dpo" }
than the sum of the shoulders and lane widths, apply the extra width to the inside of the curve. Minimum Total Roadway Widths for Two-Lane Two-Way Highway Curves, Modified Design Level Figure 430-12a Design Manual M 22-01 Modified Design Level May 2006 Page 430-13 Notes: May be used when the internal angle (delta) is l...	{ "page_id": null, "source": 7320, "title": "from dpo" }
Slope Selection Table on Figure 430-13. (2) See Cut Slope Selection Table on Figure 430-13 (3) Minimum ditch depth is 2 feet for design speeds over 40 mph and 1.5 feet for design speeds at and under 40 mph. (4) See 430.04(2)(b) and Figure 430-6 for minimum ramp width. (5) See Chapter 640 for shoulder slope requirements...	{ "page_id": null, "source": 7320, "title": "from dpo" }
– 3/4” 2600 1.30 Mineral Aggregate 1 1/2” – 3/4” 2550 1.28 Mineral Aggregate 1” – 3/4” 2500 1.25 Mineral Aggregate 3/4” – 1/2” 2400 1.20 Mineral Aggregate 1 1/4” – 1/4’” 2600 1.30 Mineral Aggregate 1” – 1/4” 2600 1.30 Mineral Aggregate 7/8” – 1/4” 2550 1.28 Mineral Aggregate 3/4” – 1/4” 2500 1.25 Mineral Aggregate 5/8”...	{ "page_id": null, "source": 7320, "title": "from dpo" }
Analysis 610.08 Traffic Data 610.09 Traffic Impact Analysis Methodologies 610.10 Traffic Analysis Software 610.11 Mitigation Measures 610.12 Traffic Impact Analysis Report ## 610.01 General It is the Washington State Department of Transportation’s (WSDOT’s) responsibility to provide for an interconnected transportation...	{ "page_id": null, "source": 7320, "title": "from dpo" }
Design guidance included by reference within the text includes: Highway Capacity Manual (HCM), latest edition, Transportation Research Board, National Research Council Roadway Delineation Practices Handbook ,FHWA report, Washington, DC, 1994 Sign Fabrication Manual , M 55-05, WSDOT Standard Plans for Road, Bridge, and ...	{ "page_id": null, "source": 7320, "title": "from dpo" }
not enter or leave the traveled ways of a project’s boundary within a mixed-use development. design hourly volume (DHV) Computed by taking the annual average daily traffic times the K-factor. It can only be accurately determined in locations where there is a permanent traffic recording device active 365 days of the yea...	{ "page_id": null, "source": 7320, "title": "from dpo" }
LOS A representing the best operating conditions and LOS F the worst. Each level of service represents a range of operating conditions and the driver’s perception of those conditions. Safety is not included in the measures that establish service levels. “pass-by” trips Pass-by trips are made as intermediate stops betwe...	{ "page_id": null, "source": 7320, "title": "from dpo" }
a model or a trend line analysis can be used to take into account historical growth rates and background projects. This decision would be based on numerous factors including the type, scale, and location of the development. The regional model is generally more appropriate for larger projects that generate a substantial...	{ "page_id": null, "source": 7320, "title": "from dpo" }
specifics of a project, the prevailing highway conditions, and the forecasted traffic. For developer projects, different thresholds may be used depending on local agency codes or interagency agreements (or both) between WSDOT and local agencies. For more information, refer to Chapter 4 of the Development Services Manua...	{ "page_id": null, "source": 7320, "title": "from dpo" }
For developer projects, the boundaries (such as the city limits) may be determined by the local agency. (2) Traffic Analysis Scenarios WSDOT is interested in the effects of plan updates and amendments, as well as the effects of specific project entitlements (including, but not limited to, site plans, conditional use pe...	{ "page_id": null, "source": 7320, "title": "from dpo" }
construction. 3. Cumulative Conditions (Existing Conditions Plus Other Approved and Pending Projects Without Proposed Project) – Trip assignment and peak hour LOS analysis in the year the project is anticipated to complete construction. 4. Cumulative Conditions Plus Proposed Project (Existing Conditions Plus Other Appr...	{ "page_id": null, "source": 7320, "title": "from dpo" }
a 15% reduction in the TIA. (c) Captured Trips – Captured trip reductions greater than 5% require consultation and acceptance by WSDOT. Include the justification for exceeding a 5% reduction in the TIA. (d) Transportation Demand Management (TDM) – Consultation between the lead agency and WSDOT is essential before apply...	{ "page_id": null, "source": 7320, "title": "from dpo" }
impacts generated by a project. (4) Accidents The following should be included in any discussion of the subject of accidents: (a) A listing of the location’s 3-year accident history. (For direct access points and/or intersections, the list covers an area 0.1 mile to either side of the main line or crossroad intersectio...	{ "page_id": null, "source": 7320, "title": "from dpo" }
(MUTCD), and WSDOT Design Manual ,Chapter 850.05, for signal warrants if a signal is being considered H. Transit – HCM, operational analysis I. Pedestrians – HCM J. Bicycles – HCM K. WSDOT Criteria/Warrants – MUTCD (stop signs), WSDOT Traffic Manual (school crossings), WSDOT Design Manual , Chapter 840 (freeway lightin...	{ "page_id": null, "source": 7320, "title": "from dpo" }
• Detailed simulation of existing conditions • Detailed analysis of traffic-actuated control • Hill-climb and genetic algorithm optimization • Optimization based on a wide variety of objective functions • Optimization of cycle length, phasing sequence, splits, and offsets • Explicit simulation of platoon dispersion, qu...	{ "page_id": null, "source": 7320, "title": "from dpo" }
most sophisticated. aaSIDRA, or aaTraffic SIDRA (Signalized & unsignalized Intersection Design and Research Aid) software is for use as an aid for designing and evaluating of the following intersection types: • Signalized intersections (fixed-time, pretimed, and actuated) • Roundabouts • Two-way stop sign control • All...	{ "page_id": null, "source": 7320, "title": "from dpo" }
bus routes, carpools, and taxis • Ramp metering and HOV lanes • Unsignalized intersections and signal warrants • Incident detection and management • Queuing studies involving turn pockets and queue blockage • Toll plazas and truck weigh stations • Origin-destination traffic flow patterns • Verification and validation o...	{ "page_id": null, "source": 7320, "title": "from dpo" }
agency SEPA review process as well as the WSDOT encroachment permit process. Additional mitigation recommendations necessary to help relieve impacts include the following: (a) Satisfy local agency guidelines and interlocal agreements (b) Correct any LOS deficiencies as per interlocal guidelines (c) Donation of right of...	{ "page_id": null, "source": 7320, "title": "from dpo" }
LOS and warrant analyses—existing conditions, cumulative conditions, and full-build of plan conditions with and without project V. CONCLUSIONS AND RECOMMENDATIONS A. LOS and appropriate MOE quantities of impacted facilities with and without mitigation measures B. Mitigation phasing plan including dates of proposed miti...	{ "page_id": null, "source": 7320, "title": "from dpo" }
information source or hazard, interpret the information, recognize the hazard, select an appropriate maneuver, and complete it safely and efficiently. design speed The speed used to determine the various geometric design features of the roadway. passing sight distance The distance (on a two-lane highway) required for a...	{ "page_id": null, "source": 7320, "title": "from dpo" }
Act (Chapter 36.70A RCW Growth management—planning by selected counties and cities), but outside the city limits. • An area with not more than 25% undeveloped land. ## 650.04 Stopping Sight Distance (1) Design Criteria Stopping sight distance is the sum of two distances: the distance traveled during perception and reac...	{ "page_id": null, "source": 7320, "title": "from dpo" }
98 78 135 50 425 136 96 150 55 495 184 115 165 60 570 244 136 180 65 645 313 157 195 70 730 401 180 210 75 820 506 206 225 80 910 623 231 240 Design Stopping Sight Distance > Figure 650-1 (2) Effects of Grade The grade of the highway has an effect on the vehicle’s stopping sight distance. The stopping distance is incre...	{ "page_id": null, "source": 7320, "title": "from dpo" }
= Stopping sight distance on grade (ft) V = Design speed (mph) t = Perception/reaction time (2.5 sec) a = Deceleration rate (11.2 ft/sec 2 )G = Grade (%) Stopping Sight Distance on Grades Figure 650-3 (3) Crest Vertical Curves Use Figure 650-1 1 or the equations in Figure 650-4 to find the minimum crest vertical curve ...	{ "page_id": null, "source": 7320, "title": "from dpo" }

Subsets and Splits

No community queries yet

The top public SQL queries from the community will appear here once available.