Application of Crash Modification Factors for Access Management, Volume 2: Research Overview (2021) / Chapter Skim
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Pages 161-164
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161 Introduction This chapter describes the objective of NCHRP Research Report 974: Application of Crash Modification Factors for Access Management -- Volume 1: Practitioner's Guide, identifies the benefits of using the guide, and provides an overview of each chapter (Gross et al.
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From page 162... ...
162 Application of Crash Modification Factors for Access Management Chapter 1: Introduction The introduction identifies the purpose of the guide, which is to assist transportation agencies in estimating and assessing the potential safety effects of access management strategies. It also identifies the target audience, which includes transportation professionals (e.g., planners, designers, and traffic engineers)
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From page 163... ...
Practitioner's Guide 163 models do not account for all differences in safety between the two site types, the comparison of results from two different cross-sectional models may not produce reasonable and reliable CMFs. Further, it is necessary to calibrate cross-sectional models to the same spatial and temporal conditions before using the models to infer CMFs.
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From page 164... ...
164 Application of Crash Modification Factors for Access Management corridor-level prediction models, which provide a more reliable method to account for interactions among adjacent sites and among multiple access management strategies. The corridor- level prediction models help to account for situations where safety performance is influenced more by corridor-level characteristics rather than the specific characteristics of an individual location.
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