考慮交叉口不同飽和度的路網動態(tài)分區(qū)方法
發(fā)布時間：2018-11-19 07:54
【摘要】：為了便于信號控制策略的實施,針對路網中不同狀態(tài)的交叉口,考慮子區(qū)內交叉口的同質性和關聯(lián)性,提出了基于不同擁擠程度的路網動態(tài)分區(qū)方法.首先考慮相鄰交叉口的交通關聯(lián)度和相似度,建立了路網動態(tài)分區(qū)模型;然后結合譜圖理論設計了動態(tài)分區(qū)算法,根據(jù)特征向量元素,對路段、交叉口的擁堵程度進行劃分;最后提出了動態(tài)子區(qū)劃分評價準則.算例結果表明,本文提出的方法既能有效地保證相關性較強的交叉口劃入同一子區(qū),又使得各子區(qū)內部路段的擁堵程度比較均衡,有利于各種不同擁擠程度的子區(qū)信號控制方案的選擇和實施,對于交通信號控制方案的設計有實際的指導意義.
[Abstract]:In order to facilitate the implementation of signal control strategy, considering the homogeneity and relevance of intersections in different states of road network, a dynamic partition method based on different congestion degree is proposed. Firstly, considering the traffic correlation and similarity of adjacent intersections, the dynamic partition model of road network is established, and then the dynamic partition algorithm is designed based on spectrum theory, and the congestion degree of road sections and intersections is divided according to the characteristic vector elements. Finally, the evaluation criterion of dynamic subregion division is proposed. The numerical results show that the proposed method can not only effectively ensure the intersections with strong correlation into the same sub-area, but also make the congestion degree of each sub-area more balanced. It is beneficial to the selection and implementation of various sub-area signal control schemes with different congestion levels and has practical guiding significance for the design of traffic signal control schemes.
【作者單位】： 華南理工大學土木與交通學院;東南大學現(xiàn)代城市交通技術江蘇高校協(xié)同創(chuàng)新中心;深圳市城市交通規(guī)劃設計研究中心有限公司;
【基金】：國家自然科學基金(61203164,61174184) 廣東省科技計劃項目(2016A030305001,2015A030401024)~~
【分類號】：U491.54
[Abstract]:In order to facilitate the implementation of signal control strategy, considering the homogeneity and relevance of intersections in different states of road network, a dynamic partition method based on different congestion degree is proposed. Firstly, considering the traffic correlation and similarity of adjacent intersections, the dynamic partition model of road network is established, and then the dynamic partition algorithm is designed based on spectrum theory, and the congestion degree of road sections and intersections is divided according to the characteristic vector elements. Finally, the evaluation criterion of dynamic subregion division is proposed. The numerical results show that the proposed method can not only effectively ensure the intersections with strong correlation into the same sub-area, but also make the congestion degree of each sub-area more balanced. It is beneficial to the selection and implementation of various sub-area signal control schemes with different congestion levels and has practical guiding significance for the design of traffic signal control schemes.
【作者單位】： 華南理工大學土木與交通學院;東南大學現(xiàn)代城市交通技術江蘇高校協(xié)同創(chuàng)新中心;深圳市城市交通規(guī)劃設計研究中心有限公司;
【基金】：國家自然科學基金(61203164,61174184) 廣東省科技計劃項目(2016A030305001,2015A030401024)~~
【分類號】：U491.54
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