详情

Using Vehicle Probe Data to Evaluate Speed Limits on Texas Highways

项目名称：	Using Vehicle Probe Data to Evaluate Speed Limits on Texas Highways
摘要：	Texas Department of Transportation's (TxDOT's) current practice is to conduct numerous speed studies throughout the year to determine if the speed limits should be changed due to new traffic patterns, development, crash history, and other factors. These studies are driven by stakeholder requests or as part of routine annual reviews. The number of studies performed at any given time is limited by staff and consultant resources, resulting in a process that can take several months to complete. Can the increasing availability of vehicle probe data, along with other big datasets, be used to reduce the level of effort and time needed to collect speed data? If so, what data can be readily obtained from big data sources and what procedure would be needed to refine the use of probe speed information and produce speed limit recommendations that are consistent with the sound engineering practices currently used by TxDOT staff? This project will explore if there are more efficient methods for conducting Texas speed limit studies that would allow TxDOT districts to be more pro-active and responsive with their speed zone program. Such a program would also provide a much safer method of collecting speed data, especially on high-speed and controlled access highways.
状态：	Active
资金：	399982
资助组织：	Texas Department of Transportation
管理组织：	Texas Department of Transportation
项目负责人：	Odell, Wade
执行机构：	Texas A&M Transportation Institute
主要研究人员：	Fitzpatrick, Kay
开始时间：	20220901
预计完成日期：	20240831
主题领域：	Data and Information Technology；Highways；Operations and Traffic Management；Safety and Human Factors