Prior to this research project, state highway agencies did not have tools for reflecting safety in their decisions concerning freeway and interchange projects.
The TRB National Cooperative Highway Research Program's NCHRP Web-Only Document 306: Safety Prediction Methodology and Analysis Tool for Freeways and Interchanges documents a safety prediction method for freeways that is suitable for incorporation in the Highway Safety Manual. Within the document are Appendices A through F: Practitioner Interviews, Database Enhancement, Proposed HSM Freeways Chapter, Proposed HSM Ramps Chapter, Proposed HSM Appendix B for Part C, and Algorithm Description.
Table of Contents
|CHAPTER 1: INTRODUCTION||3-4|
|CHAPTER 2: LITERATURE REVIEW||5-56|
|CHAPTER 3: FRAMEWORK FOR SAFETY PREDICTION||57-68|
|CHAPTER 4: DATABASE DEVELOPMENT||69-99|
|CHAPTER 5: PREDICTIVE MODEL FOR FREEWAY SEGMENTS||100-180|
|CHAPTER 6: PREDICTIVE MODEL FOR RAMP SEGMENTS||181-234|
|CHAPTER 7: PREDICTIVE MODEL FOR CROSSROAD RAMP TERMINALS||235-318|
|CHAPTER 8: SEVERITY DISTRIBUTION FUNCTIONS||319-348|
|CHAPTER 9: CONCLUSIONS AND RECOMMENDATIONS||349-350|
|APPENDIX A: PRACTITIONER INTERVIEWS||363-371|
|APPENDIX B: DATABASE ENHANCEMENT||372-384|
|APPENDIX C: PROPOSED HSM FREEWAYS CHAPTER||385-522|
|APPENDIX D: PROPOSED HSM RAMPS CHAPTER||523-692|
|APPENDIX E PROPOSED HSM APPENDIX B FOR PART C||693-726|
|APPENDIX F: ALGORITHM DESCRIPTION||727-753|
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