Updating Safety Performance Functions for Data-Driven Safety Analysis
| 项目名称： | Updating Safety Performance Functions for Data-Driven Safety Analysis |
| 摘要： | The objectives of this research are to (1) determine how frequently safety performance functions (SPF), SPF adjustment factors (also called crash modification factors (CMF) in Part C of the Highway Safety Manual (HSM)), and SDF should be updated; (2) determine under what conditions (e.g., changes in data and statistical properties) SPF, SPF adjustment factors, and severity distribution functions (SDF) require updates; and (3) develop an implementable approach and guidance for maintaining and updating existing and future functions and factors. |
| 状态： | Active |
| 资金： | 500000 |
| 资助组织： | American Association of State Highway and Transportation Officials (AASHTO)<==>National Cooperative Highway Research Program<==>Federal Highway Administration |
| 项目负责人： | Harwood, Leslie C |
| 执行机构： | University of North Carolina at Chapel Hill |
| 开始时间： | 20190815 |
| 预计完成日期： | 20221231 |
| 主题领域： | Data and Information Technology；Highways；Planning and Forecasting；Safety and Human Factors |
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