IVHS Countermeasures For Rear-End Collisions, Task 2 - Functional Goals, Interim Report

Transferred from EDL on 5/14/2008PDFTech ReportDOT HS 808 513United States. Joint Program Office for Intelligent Transportation SystemsIntelligent Transportation Systems Joint Program OfficeTHE ATTACHED REPORT IS FROM THE NHTSA SPONSORED PROGRAM, "IVHS COUNTERMEASURES FOR REAR-END COLLISIONS," CONTRACT #DTNH22-93-C-07326.THIS PROGRAM?S PRIMARY OBJECTIVE IS THE DEVELOPMENT OF PRACTICAL PERFORMANCEGUIDELINES OR SPECIFICATIONS FOR REAR-END COLLISION AVOIDANCE SYSTEMS. THEPROGRAM CONSISTS OF THREE PHASES: PHASE ONE: "LAYING THE FOUNDATION" (TASKS 1-4), PHASE TWO: "UNDERSTANDING THE STATE-OF-THE-ART" (TASKS 5 & 6), AND PHASE THREE: "TESTING AND REPORTING" (TASKS 7-9). THIS WORK FOCUSES ON LIGHT VEHICLES ONLY AND EMPHASIZES AUTONOMOUS IN-VEHICLE-BASED EQUIPMENT (AS OPPOSED TO COOPERATIVE INFRASTRUCTURE-BASED EQUIPMENT.)THE RESULTS AND CONCLUSION PRESENTED IN THIS INTERIM REPORT ARE PRELIMINARY INNATURE. THE TASK 2 REPORT "FUNCTIONAL GOALS" PRESENTS THE FUNCTIONAL GOALSDEVELOPED FOR THREE BASIC TYPES OF REAR-END COLLISION AVOIDANCE AND RELATEDSYSTEMS (DRIVER WARNING SYSTEM (DWS), INTELLIGENT CRUISE CONTROL (ICC)SYSTEM, AUTOMATIC CONTROL SYSTEM (ACS)). IN ADDITION, THE REPORT PRESENTS THEDYNAMIC SITUATIONS RELEVANT TO THE REAR-END CRASH PROBLEM. THESE DYNAMICSITUATIONS ALLOW THE EVENTS LEADING TO ACCIDENTS, AND ACCIDENTS THEMSELVES, TO BE SUBDIVIDED INTO SMALLER GROUPS THAT CAN BE ADDRESSED INDIVIDUALLY. TO ESTABLISH THE FUNCTIONAL GOALS, A TAXONOMY OF COLLISION SUBSETS AND CRASH-RELATED EVENTS THAT PROVIDE A BASIS FOR IDENTIFYING OPPORTUNITIES FOR INTERVENTION IN THE SEQUENCE OF EVENTS LEADING TO A CRASH WAS DEVELOPED. THE FUNCTIONAL GOALS ESTABLISHED FOR EACH OF THE SYSTEM TYPES IS BASED ON THIS TAXONOMY. THE REPORT ALSO ESTABLISHED THE TERMS AND DEFINITIONS AS THEY RELATE TO THIS PROGRAM.