This paper proposes an arterial coordinated control strategy for tidal traffic to alleviate the tide traffic congestion caused by the urban layout problems.According to the relationship between traffic supply and demand as well as the balance between inflow and outflow,a mixed integer linear programming model was built to maximize the throughput.A quadratic programming model was built to minimize the average vehicle delay in the oversaturated direction based on shockwave theory.By introducing the relaxation variable,a mixed integer linear programming model was built to maximize the variable bandwidth by segments in unsaturated direction.The three-stage optimization method was used to solve the model and obtain the optimal arterial control scheme.The numerical example results indicate that the proposed model can optimize the throughput of arterial and delay in oversaturated directions,and obtain the variable bandwidth green wave in the unsaturated direction,thereby meeting the tidal traffic demand.
关键词
潮汐交通/干线信号协调/过饱和交通控制/约束松弛/可变带宽绿波控制/混合整数线性规划/二次规划
Key words
tidal traffic/arterial signal coordination/oversaturated traffic control/constraint relaxation/multi-band/mixed-integer linear programming/quadratic programming
维普
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