| Civil Engineering, Transportation Engineering |
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| Improved arterial coordinated signal control optimization model |
| YU De-xin1,2, TIAN Xiu-juan1, YANG Zhao-sheng1,2, ZHOU Xi-yang1, CHENG Ze-yang1 |
1. College of Transportation, Jilin University, Changchun 130022, China;
2. Jilin Province Key Laboratory of Road Traffic, Jilin University, Changchun 130022, China |
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Abstract The classical MULTIBAND model was improved based on mixed integer linear programming algorithm, and a new green wave band arterial coordinated signal control optimization method was proposed. The form of two-way green wave band was optimized first by removing the symmetric constraints and increasing bandwidth proportion constraints. Vehicle queuing process between upstream and downstream intersections on the arterial road was analyzed, contributing to establishing queue dissipation time model. Then the improved MULTIBAND model was obtained. A typical arterial road network was selected to verify the validity of the model. Lingo software was employed to solve the classical MULTIBAND model, AM-BAND model and improved MULTIBAND model, respectively. VISSIM simulation software was applied to evaluate the running performance of different methods. Simulation results show that the improved MULTIBAND model can effectively improve the arterial signal control effect and reduce vehicle delays and stops compared with other models, achieving the goals of arterial coordinated signal control optimization.
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Received: 14 September 2016
Published: 27 September 2017
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改进的干线协调信号控制优化模型
基于混合整数线性规划方法，对经典MULTIBAND模型进行改进，提出绿波带干线协调信号控制优化方法.通过取消绿波带对称约束和增加带宽比例约束，对绿波带形式进行优化；分析干线上、下游交叉口车辆排队情况，建立排队消散时间模型，得到改进的MULTIBAND模型.选取一典型路网进行模型验证.利用Lingo软件分别求解MULTIBAND模型、AM-BAND模型和改进的MULTIBAND模型，借助VISSIM软件进行信号配时方案评价.仿真结果表明，与其他2种模型相比，采用改进的MULTIBAND模型能够有效地提高干线信号控制效果，降低车辆延误和停车次数，达到了干线协调优化的目的.
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