环形交叉口内部运行时间可靠度研究

doi:10.16182/j.issn1004731x.joss.17WJP-020

摘要/Abstract

摘要： 基于行程时间可靠性指标对环形交叉口内部区域的交通运行态势进行了分析。从路径、入口和系统三个层面依次建立了针对环形交叉口的运行时间可靠度模型,借助VISSIM微观仿真平台对模型适用性进行了验证分析。在此基础上,对同一入口相邻路径和相邻入口相邻路径之间的可靠度进行了相关性分析,并得到了其拟合方程。分别以车道数、流量、左转比例、大车比例等为变量,对不同类型的运行时间可靠性进行了敏感性分析,验证了所建模型的适用性,丰富和完善了环形交叉口的指标评价体系。

关键词: 环形交叉口, 行程时间可靠度, 交通仿真, 敏感性分析

Abstract: Based on the travel time reliability, this paper analyzes the traffic states in the inside area of the roundabout. The travel time reliability model is established from three aspects: route path, entrance and system, and the practicability of the model is verified by the VISSIM simulation. On this basis, the correlation analysis is made on between the adjacent paths of the same entrance and adjacent paths of the adjacent entrances, and the fitting equations are obtained. Taking the number of lanes, traffic volumes, proportion of left-turns and the rate of heavy vehicles as variables, a sensitivity analysis of different types of travel time reliability is conducted, which verifies the applicability of the proposed model. The results enrich the evaluation index system of roundabout.

Key words: roundabout, travel time reliability, traffic simulation, sensitivity analysis

中图分类号:

U491.2

段宇洲, 柴婷婷, 简洁. 环形交叉口内部运行时间可靠度研究[J]. 系统仿真学报, 2019, 31(3): 438-447.

Duan Yuzhou, Chai Tingting, Jian Jie. Travel Time Reliability of Inside Area of Roundabouts[J]. Journal of System Simulation, 2019, 31(3): 438-447.

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