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Contents ACKNOWLEDGEMENTS ....................................................................................................................... 1 SUMMARY OF FINDINGS ...................................................................................................................... 2 CHAPTER 1 INTRODUCTION AND BACKGROUND ...................................................................... 5 CHAPTER 2 ANALYSIS OF REAL WORLD CRASH INFORMATION ......................................... 7 2.1 STATISTICAL ANALYSIS ..................................................................................................................... 7 2.2 SINGLE VEHICLE CRASH CASE REVIEWS......................................................................................... 12 2.2.1 Case Review Summary .............................................................................................................. 53 CHAPTER 3 ASSESSMENT OF VEHICLE CHARACTERISTICS................................................ 55 3.1 GEOMETRIC CHARACTERISTICS....................................................................................................... 57 3.2 BARRIER FORCE DATA..................................................................................................................... 65 3.3 APPLICATION OF VEHICLE CHARACTERISTICS ................................................................................ 70 CHAPTER 4 STRATEGIES TO IMPROVE VEHICLE/ROADSIDE HARDWARE COMPATIBILITY ................................................................................................................................... 78 4.1 INDUSTRY INTERACTION AND WORKSHOP FINDINGS...................................................................... 79 4.1.1 Accident Data Related Results .................................................................................................. 80 4.1.2 Assessment of Vehicle Compatibility ........................................................................................ 83 4.1.3 Policy Issues Regarding Compatibility..................................................................................... 85 4.1.4 Computer Simulation ................................................................................................................ 86 4.2 CRASH DATA COLLECTION .............................................................................................................. 88 4.3 CRASH TEST METHODOLOGY .......................................................................................................... 95 4.3.1 Test Vehicle Selection ............................................................................................................... 97 4.3.2 Occupant Representation During Crash Testing...................................................................... 98 4.4 APPLICATION OF COMPUTER SIMULATION ...................................................................................... 98 CHAPTER 5 CONCLUSIONS AND FUTURE RESEARCH........................................................... 102 5.1 CONCLUSIONS ................................................................................................................................ 102 5.1.1 Data Analysis .......................................................................................................................... 102 5.1.2 Individual Case Review........................................................................................................... 103 5.1.3 Crash Testing .......................................................................................................................... 105 5.1.4 Industry and Government Awareness ..................................................................................... 105
5.2 FUTURE RESEARCH ........................................................................................................................ 106 5.2.1 Roadside Collision Data Collection ....................................................................................... 106 5.2.2 Evaluation of Alternative Test Methods.................................................................................. 107 5.2.3 Compatibility Evaluation Using Detailed Finite Element Models.......................................... 108 APPENDIX A NASS/CDS CASES.......................................................................................................A-1 A.1 PASSENGER CARS - ROADSIDE HARDWARE CRASH CASES...........................................................A-1 A.2 TRUCK/SUV - ROADSIDE HARDWARE CRASH CASES.................................................................A-52 APPENDIX B VEHICLE ATTRIBUTES ........................................................................................... B-1 APPENDIX C NASS CASE INVESTIGATION FORMS .................................................................C-1 APPENDIX D LITERATURE REVIEW ............................................................................................D-1 BIBLIOGRAPHY............................................................................................................... Bibliography-1
