详情

Evaluating Different Methods for Estimating Queue Length on Access Ramps

项目名称：	Evaluating Different Methods for Estimating Queue Length on Access Ramps
摘要：	Ramp metering is a traffic management strategy designed to mitigate congestion on freeways by adjusting the flow of traffic entering freeways. Ramps are often metered individually, where the ramp exit rate can be adjusted based on mainline congestion. Coordinated ramp metering is a higher-level strategy, where the exit rates across several adjacent ramps can be coordinated to reduce or eliminate mainline bottlenecks. In both individual or coordinated ramp metering systems, efficiency is gained when timely and accurate information about the ramp queue state is available. Currently, this information is collected using loop detectors, which exhibit limited accuracy in highly-congested (i.e., bumper-to-bumper) conditions. To this end, this project will develop a computer-vision-based method to infer queue states along the freeway ramps. The proposed method will be validated through comparisons against the loop detectors.
状态：	Active
资金：	108000
资助组织：	Office of the Assistant Secretary for Research and Technology
管理组织：	Mountain-Plains Consortium
项目负责人：	Tolliver, Denver
执行机构：	Dept. of Civil and Environmental Engineering
主要研究人员：	Markovic, Nikola；Rashidi, Abbas
开始时间：	20221013
预计完成日期：	20230731
主题领域：	Administration and Management；Data and Information Technology；Highways；Operations and Traffic Management