山地城市商圈環(huán)道信號協(xié)同控制方法

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中圖分類號：U491.4 文獻(xiàn)標(biāo)碼：A

本文引用格式：，等.山地城市商圈環(huán)道信號協(xié)同控制方法[J].華東交通大學(xué)學(xué)報，2025，42（3）：48-56.

Signal Collaborative Control Method for Ring Roads in Business District of Mountainous City

ChenYang'，XueKaixuan2，LiZimu'，CaiXiaoyu3，ZhuWenbo4 （1.SchoolofspotionogingJotongUesityogingo4，ina;Yuantteoghie andTechnologyug0，ia;3.hlrtCityogigotngUersityogga;4. Wester China Science City Innovation CenterofIntelligentand Connected Vehicles，Chongqing 40o039，China）

Abstract：The ring roads in mountainous city business districts are prone to congestion due to numerous intersections and fluctuating trafic flows.To address this，a cooperative signal control method for managing ring roads entrances and exits is proposed.Road and trafic characteristics were extracted using high-altitude video，checkpointdata，and Internet-based datasets.The control objectives include maximizing vehicle throughput，minimizing entrance queue lengths，and reducing downstream congestion at exit intersections.The optimization model is constrained by signal control parameters，queue lengths，and overall ring roads density.The standard NSGA-ⅡI algorithm was improved in operator design and population size configuration. A MATLAB-VISSIM simulation platform was developed for joint simulation.A case study of the Guanyinqiao business district ring roads in Chongqing was conducted.Results show that，compared to the original scheme，the optimized strategy increases ring roads capacity by 8.9% during peak hours， reduces entrance lane queue length by 31.7% ，and decreases exit lane queue length by 15.0% .These findings validate the effectiveness of the proposed multi-objective optimization and cooperative signal control method.By enhancing coordination among multiple intersections，this approach provides valuable guidance for alleviating regional traffic congestion during peak hours.

Key words：traic engineering;signal cooperative control; multi-objective optimization; ring roads in business districts of mountainous city; NSGA-II algorithm

Citation format：CHENY， XUE K X，LI Z M，et al.Signal collaborative control method for ring roads in business district of mountainous city[J].JournalofEast China Jiaotong University，2025，42（3）： 48-56.

山地城市商圈集商業(yè)、商務(wù)、住宅于一體，人流車流密集。（剩余11268字）