Review Of Crash Reduction Factors Crf For Use In The Highway Safety Improvement Program Handbook

Review of Crash Reduction Factors (CRF) for Use in the Highway Safety Improvement Program Handbook

This report reviews the crash cost reduction factors for countermeasures currently listed in the Alaska Department of Transportation and Public Facility's Highway Safety Improvement Program (HSIP) Handbook (HSIPHB) and provides revised values based on a literature survey of research and references. In addition, crash cost reduction factors are proposed for the five treatments that are not currently listed in the HSIPHB, including cable barrier median barriers, pavement traction enhancement, flashing yellow arrow left turn indications, HAWK pedestrian signals, and concrete median barriers. There is also a section on practices by other state DOT organizations. Alaska HSIP data is evaluated for safety effectiveness and the report provides an analysis and recommendations for the HSIP post evaluation process. This project and report also included research of the effectiveness of Active Advance Warning Flashers (AAWF) and shoulder rumble strips based upon Alaskan crash experience.

Guidance for Implementation of the AASHTO Strategic Highway Safety Plan

Guide for Effective Tribal Crash Reporting

Part 1. Overview and self assessment. chapter 1. Self-assessment for state agencies -- chapter 2. Self-assessment for tribes -- part 2. Guide for effective tribal crash reporting. chapter 1. Establishing and maintaining communication and relationship between tribes and states -- chapter 2. Tribal crash data collection system -- chapter 3. State-tribal crash data sharing -- chapter 4. Improving tribal traffic safety using crash data -- part 3. Reference and source materials. References -- Abbreviations, acronyms, initialisms, and symbols -- appendix A. memorandum of understanding example -- appendix B. Case study flyers -- appendix C. Promotional flyer -- appendix D. Useful references.