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Development of a Maryland State Specific Preferred Crash Modification Factor (CMF) List

项目名称：	Development of a Maryland State Specific Preferred Crash Modification Factor (CMF) List
摘要：	Maryland Department of Transportation State Highway Administration (MDOT SHA) is dedicated to implementing countermeasures that will improve highway safety. Crash Modification Factors (CMF) are a tool to evaluate the safety effect of a countermeasure by estimating the expected change in crashes after implementing a countermeasure. Although most CMFs are available through the Federal Highway Administration’s CMF Clearinghouse, a search for a single countermeasure often returns a large number of CMFs making it difficult for engineers to use them properly. CMFs for some countermeasures may also not be available. The objective of this project is to develop a Maryland state preferred CMF list. This will result in better guidance for engineers and will help ensure consistency regarding CMF use on proposed projects. State CMF lists can vary from a short list of the most commonly used CMFs to a longer, more comprehensive list. The research team will recommend an approach after examining CMF lists in other states, then work with MDOT SHA to determine which countermeasures should be included on the State list and develop one set of suggested CMF values for each countermeasure based on Maryland conditions. The result will be a recommended CMF list for evaluating safety performance for various countermeasures by facility type (bike/ped, interchange, intersection, freeway segment, and non-freeway segment).
状态：	Active
资金：	143000
资助组织：	Maryland Department of Transportation State Highway Administration
项目负责人：	Hawkins, Sharon
执行机构：	University of Maryland, College Park
开始时间：	20191112
预计完成日期：	20210528
主题领域：	Highways；Operations and Traffic Management；Safety and Human Factors