A macroscopic signal optimization model for arterials under heavy mixed traffic flows

Yen Yu Chen, Gang Len Chang

研究成果: Article同行評審

13 引文 斯高帕斯(Scopus)

摘要

This paper presents a generalized signal optimization model for arterials experiencing multiclass traffic flows. Instead of using conversion factors for nonpassenger cars, the proposed model applies a macroscopic simulation concept to capture the complex interactions between different types of vehicles from link entry and propagation, to intersection queue formation and discharging. Since both vehicle size and link length are considered in modeling traffic evolution, the resulting signal timings can best prevent the queue spillback due to insufficient bay length and the presence of a high volume of transit or other types of large vehicles. The efficiency of the proposed model has been compared with the benchmark program TRANSYT-7F under both passenger flows only and multiclass traffic scenarios from modest to saturated traffic conditions. Using the measures of effectiveness of the average-delay-per-intersection approach and the total arterial throughput during the control period, our extensive numerical results have demonstrated the superior performance of the proposed model during congested and/or multiclass traffic conditions. The success of the proposed model offers a new signal design method for arterials in congested downtowns or megacities where transit vehicles constitute a major portion of traffic flows.

原文English
文章編號6675786
頁(從 - 到)805-817
頁數13
期刊IEEE Transactions on Intelligent Transportation Systems
15
發行號2
DOIs
出版狀態Published - 4月 2014

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