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基于仿真的城市信号交叉口优化与评估

Optimization and evaluation of urban signalized intersection based on simulation
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摘要 交叉口作为交通流的中转站,其路口的拥堵影响着整个交通路网的安全与效率,信号控制优化与道路渠化能有效地缓解交叉口处拥堵。本文以恩施市金桂大道—金山大道交叉口为例,通过对交叉口处的交通路况、几何现状、交通流量和信号控制方案的分析,制定了交叉口信号控制优化与道路渠化结合的综合优化方案,最后利用VISSIM软件对优化前后的交叉口进行仿真分析,获得了车辆排队长度及平均延误时长。结果表明:实施新的优化方案后,车辆的排队长度显著降低,平均延误降低16.8%,有效缓解了交叉口处的拥堵,提高了道路的通行能力,相关研究可为恩施市道路的发展与规划提供有效参考。 As a transit station of traffic flow,the intersection congestion affects the safety and efficiency of the traffic network.Signal control optimization and road channelization can effectively alleviate the congestion.Based on data of Jingui Avenue and Jinshan Avenue intersection from Enshi,this paper analysis the traffic conditions,geometric status,traffic flow and signal control scheme of the intersection,and adopts a comprehensive optimization of intersection signal control optimization and road channelization.The VISSIM software was used to simulate the intersection before and after optimization,and export queue length and delay.The results indicate that after the implementation of the new optimization scheme,the queue length is reduced and the average delay is reduced by 16.8%,which effectively alleviates the congestion at the intersection,improves the road capacity,and provides an effective reference for the road development and planning of Enshi.
作者 黄河 曾琦睿 牟伦超 Huang He;Zeng Qirui;Mou Lunchao(School of Transportation and logistics,Taiyuan University of Science and Technology,Taiyuan 030024,China;School of Forestry and Horticulture,Hubei Minzu University,Enshi 445000,China)
出处 《青海交通科技》 2022年第3期1-6,共6页 Qinghai Transportation Science and Technology
基金 鄂西生态文化旅游研究中心项目(PT072009)。
关键词 交叉口 左弯待转区 VISSIM仿真 排队长度 延误 intersection left-turn waiting area VISSIM simulation queue length delay
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