The 1st Edition, in 2010, of the AASHTO Highway Safety Manual revolutionized transportation engineering practice by providing crash modification factors and functions, along with methods that use safety performance functions for estimating the number of crashes within a corridor, subsequent to implementing safety countermeasures.
The TRB National Cooperative Highway Research Program's NCHRP Research Report 974: Application of Crash Modification Factors for Access Management, Volume 2: Research Overview documents the research process related to access management features. The research project is also summarized in this presentation.
NCHRP Research Report 974: Application of Crash Modification Factors for Access Management, Volume 1: Practitioner’s Guide presents methods to help transportation practitioners quantify the safety impacts of access management strategies and make more informed access-related decisions on urban and suburban arterials.
Table of Contents
|Chapter 1 - Introduction||6-9|
|Chapter 2 - Literature Review||10-39|
|Chapter 3 - Data Reconnaissance and Assessment||40-55|
|Chapter 4 - Gap Analysis||56-64|
|Chapter 5 - Study Design||65-69|
|Chapter 6 - Data Collection||70-80|
|Chapter 7 - Analysis Results||81-160|
|Chapter 8 - Practitioner s Guide||161-164|
|Chapter 9 - Focus Group||165-168|
|Chapter 10 - Implementation Plan||169-172|
|Chapter 11 - Conclusions and Future Research||173-175|
|Appendix A - Survey Questions||176-177|
|Appendix B - Comments on Survey Responses||178-181|
|Appendix C - Overview of Goodness-of-Fit Measures||182-188|
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