基于速度波動區(qū)間的雙向綠波優(yōu)化控制方法
發(fā)布時間:2018-03-15 23:35
本文選題:信號控制 切入點:速度波動區(qū)間 出處:《西南交通大學學報》2017年04期 論文類型:期刊論文
【摘要】:針對現(xiàn)有干線交通信號綠波控制方法采用平行等寬的綠波帶寬,無法考慮相鄰交叉口間交通流運行速度波動性的缺陷,引入了基于路段速度波動區(qū)間的不等綠波帶寬,提出了干線交通雙向綠波優(yōu)化控制方法.該方法在滿足非綠波相位交通需求的前提下,以相鄰交叉口之間的綠波帶寬最大化為優(yōu)化目標,通過構建帶寬最大化模型,調整相鄰交叉口之間的相對相位差,并以重疊度檢驗為約束條件,防止了綠波帶斷層現(xiàn)象的產生,進而實現(xiàn)了干線道路交通信號的雙向綠波控制.以昆山市長江路為例,基于效率層面的評價指標對提出的干線交通雙向綠波優(yōu)化控制方法性能進行評估,結果表明:該方法較之傳統(tǒng)的綠波控制方法在綠波帶寬方面增加了11.8%,在交通延誤和車輛排隊長度方面分別減少了15.34%和10.86%.
[Abstract]:Aiming at the disadvantage of the existing green wave control methods of trunk road traffic signal using parallel and equal width green wave bandwidth, which can not take into account the fluctuation of traffic flow speed between adjacent intersections, the unequal green wave bandwidth based on section velocity fluctuation interval is introduced. In this paper, a bi-directional green wave optimal control method for trunk line traffic is proposed. Under the premise of satisfying the requirement of non-green wave phase traffic, the optimization goal is to maximize the green wave bandwidth between adjacent intersections, and a bandwidth maximization model is constructed. The relative phase difference between adjacent intersections is adjusted, and the overlap test is taken as the constraint condition to prevent the occurrence of the fault in the green wave zone, thus realizing the two-way green wave control of traffic signals on the trunk roads. Taking the Changjiang Road in Kunshan City as an example, Based on the evaluation index of efficiency level, the performance of the proposed bi-directional green wave optimal control method for trunk traffic is evaluated. The results show that compared with the traditional green wave control method, the proposed method increases the green wave bandwidth by 11.8%, reduces the traffic delay and vehicle queue length by 15.34% and 10.86 respectively.
【作者單位】: 東南大學智能運輸系統(tǒng)研究中心;廣東方緯科技有限公司;
【基金】:新疆維吾爾自治區(qū)科技計劃資助項目(201332112)
【分類號】:U491.54
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本文編號:1617376
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