详情

Signal Timing Strategy for Displaced Left Turn Intersections

项目名称：	Signal Timing Strategy for Displaced Left Turn Intersections
摘要：	Displaced left turn (DLT), also known as continuous flow intersection (CFI), is an innovative intersection designed to increase the mobility of an intersection by relocating its left turn lane (lanes) to the far-left side of the road at upstream location of the main signalized intersection. Since DLT is relatively new and only implemented in a few states, there are few existing guidelines available for designing DLT intersections. One of the critical elements when designing a DLT is the signal timing plan. An appropriate signal timing plan will maximum the intersection capacity, reduce congestion, and improve safety. The purpose of this research is to develop a comprehensive signal timing strategy for DLT intersections. To achieve this purpose, the research team will first review and summarize current design guidelines and research findings on how to design and optimize signal timing for DLT intersections. Then, a new DLT signal time design methodology will be proposed by considering various geometric configurations and traffic conditions. A DLT intersection located at Texas is selected as a case study location to apply and validate the signal timing strategy developed in this project. VISSIM simulation will be conducted to evaluate the developed signal timing method.
状态：	Active
资金：	81357
资助组织：	Office of the Assistant Secretary for Research and Technology
管理组织：	University of North Carolina, Charlotte
项目负责人：	Fan, Wei (David)
执行机构：	Texas Southern University, Houston
主要研究人员：	Qi, Yi
开始时间：	20181001
预计完成日期：	20200930
实际结束时间：	0