| case_id,vehicle_class,vehicle_example,scenario,provided_context,claimed_assumption,expected_context,regime_boundary,boundary_reason,expected_response,expected_rationale_bullets,disallowed_assumptions,risk_level | |
| AVCRR-0001,Passenger car,Sedan,"Urban to highway merge","Speed=90 km/h; Dense traffic; On ramp","Highway following model applies","Highway merge","Urban-highway transition","Traffic density and lane structure differ",CONTEXT_BREAKDOWN,"Urban merge has different right-of-way and density|Highway model not yet valid","Assuming highway rules before merge completes",High | |
| AVCRR-0002,Passenger car,Sedan,"Entering school zone","Speed=50 km/h; Time=08:30","Nominal urban speed rules apply","School zone","Time-based speed regime","Legal and safety rules change during school hours",CONTEXT_BREAKDOWN,"School zone imposes lower speeds|Context overrides nominal urban rules","Ignoring time dependent context",High | |
| AVCRR-0003,Passenger car,SUV,"Clear weather to heavy rain","Visibility drop; Road wet","Dry road dynamics apply","Adverse weather","Weather regime shift","Reduced friction and perception reliability",CONTEXT_BREAKDOWN,"Rain reduces friction and sensor confidence|Dry assumptions invalid","Assuming weather irrelevant",High | |
| AVCRR-0004,Autonomous shuttle,Low speed shuttle,"Normal road to construction zone","Cones present; Lanes unclear","HD map lanes apply","Construction zone","Temporary road geometry","Lane markings and right-of-way altered",CONTEXT_BREAKDOWN,"Construction zones invalidate map assumptions|Temporary rules apply","Assuming map always valid",High | |
| AVCRR-0005,Passenger car,Sedan,"Day to night driving","Sunset passed; Low light","Daytime perception applies","Night driving","Lighting regime change","Sensor noise and visibility change",CONTEXT_BREAKDOWN,"Night conditions reduce perception reliability","Assuming lighting irrelevant",Medium | |
| AVCRR-0006,Passenger car,Sedan,"Freeway pileup ahead","Stopped traffic; Limited visibility","Free flow traffic assumptions apply","Incident scene","Traffic regime collapse","Stopped vehicles and hazards present",CONTEXT_BREAKDOWN,"Incident scene invalidates free flow assumptions","Assuming continuous traffic flow",High | |
| AVCRR-0007,Passenger car,Sedan,"Entering roundabout","Circular junction; Yield signs","Four way intersection logic applies","Roundabout","Intersection type change","Different right-of-way and geometry",CONTEXT_BREAKDOWN,"Roundabouts follow different priority rules","Assuming all intersections equivalent",Medium | |
| AVCRR-0008,Passenger car,Sedan,"Rural road to urban center","Pedestrians appear; Parked cars","Rural driving model applies","Urban street","Environment density change","Increased vulnerable road users",CONTEXT_BREAKDOWN,"Urban context has pedestrians and obstacles","Assuming rural context persists",Medium | |
| AVCRR-0009,Passenger car,Sedan,"Normal traffic to emergency vehicle approach","Sirens detected; Lights visible","Nominal traffic rules apply","Emergency interaction","Priority override","Emergency vehicles change right-of-way rules",CONTEXT_BREAKDOWN,"Emergency vehicles override normal rules","Ignoring emergency priority",High | |
| AVCRR-0010,Passenger car,Sedan,"Ambiguous zone","Mixed signage; Unclear markings","Standard rules apply","Unclear","Context ambiguity","Insufficient information to classify context",CLARIFY,"Mixed signals require clarification before applying rules","Assuming context without confirmation",Medium | |