详情

Understanding Factors Affecting Arterial Reliability Performance Metrics

项目名称：	Understanding Factors Affecting Arterial Reliability Performance Metrics
摘要：	With worsening congestion, travel time reliability is increasingly becoming as critical as average travel times in affecting travel choices. This research project will first study the data requirements for existing travel time reliability metrics being used or being considered for use by practitioners and researchers. The research team will then use bluetooth travel time data from arterial corridors in Portland to get an understanding of the temporal variation in travel time reliability metrics, travel time distributions, distribution of the travel time reliability metrics, variation of travel time reliability metrics with weather and other special events. The project is particularly interested in understanding if the reliability metrics are similar or different across various arterial corridors. The research team will then adopt a regression approach to quantify the impact of geometry, signal timing, volume counts, weather etc. on travel time reliability. This research project is unique due to the following aspects. The project is studying travel time reliability metrics on arterial corridors with signalized intersections, bicycle, pedestrians, and transit corridors, and not on freeways. The project is attempting to quantify and rank the impact of geometric, traffic flow characteristics on travel time reliability in a formal statistical framework. The project will be basing it's work on archived bluetooth real world travel time data and not use a simulation based framework.
状态：	Completed
资金：	219987
资助组织：	Oregon Department of Transportation
管理组织：	TREC at Portland State University
项目负责人：	Hagedorn, Hau
执行机构：	Portland State University
主要研究人员：	Kothuri, Sirisha
开始时间：	20170901
预计完成日期：	20190630
实际结束时间：	20190924