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Developing Safety Performance Function (SPF) and Crash Modification Factor (CMF) for Managed Lanes Separation Treatments

项目名称：	Developing Safety Performance Function (SPF) and Crash Modification Factor (CMF) for Managed Lanes Separation Treatments
摘要：	The aim of this project is to expand understanding of the effects of separation type selection on safety performance. This project will collect data from existing managed lane facilities in Florida and develop Safety Performance Functions (SPFs) and Crash Modification Factors (CMFs) for managed lane facilities based on separation type. A SPF will be developed for a managed lane facilities base condition, and CMFs will be developed for variations in separation type. If the data collected supports the development of CMFs for features other than separation type, they may also be included in the research. Possibilities include access type, access frequency, and number of lanes. All separation types listed above should be included in the study, if adequate data does not exist in Florida, data from facilities in other states may be used. The desired outcome of this research is CMFs and SPFs that can be used to quantitatively compare alternatives during project development and design. This research will focus on the four separation types (1) barrier separation, (2) buffer separation with managed lane markers, (3) buffer separation with pavement marking, and (4) wide buffer separation.
状态：	Active
资金：	223950
资助组织：	Florida Department of Transportation
项目负责人：	Ponnaluri, Raj
执行机构：	Florida International University
开始时间：	20200616
预计完成日期：	20220430
主题领域：	Design；Highways；Operations and Traffic Management；Safety and Human Factors