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通过引入绿波带宽分配影响因子与带宽需求比例系数,构造了一种新的绿波协调控制模型性能指标函数通式,针对MAXBAND(MULTIBAND)模型与通用双向绿波协调控制模型,分别建立了面向双向不同带宽需求的最大绿波协调控制优化模型,并对是否可以获得双向绿波带宽的两种情况,比较了控制模型改进前后的设计效果。分析结果表明:在难以获得双向绿波协调控制效果的情况下,优化模型将适当选用单向绿波协调控制方式,以确保单向绿波带宽达到最大,并优先满足带宽需求较高行驶方向的设计要求;在可以获得一定双向绿波协调控制效果的情况下,优化模型将实现双向绿波带宽之和最大,并尽量根据双向带宽需求比为各个方向合理分配实际带宽。可见,优化模型合理有效。
By introducing the influence factors of green wave bandwidth allocation and bandwidth demand ratio coefficient, a new formula of performance index function for green-wave coordinated control model is constructed. According to the MAXBAND (MULTIBAND) model and general bidirectional green-wave coordinated control model, The maximum green-wave coordinated control optimization model of bidirectional different bandwidth requirements and two cases of whether bidirectional green-wave bandwidth can be obtained are compared before and after the improvement of the control model. The analysis results show that the optimal model will choose the unidirectional green-wave coordinated control mode properly to ensure the unidirectional green-wave bandwidth reach the maximum and give priority to the direction of the high bandwidth demand when it is difficult to obtain the bidirectional green-wave coordination control effect The optimal model will achieve the maximum of the bi-directional green-wave bandwidth and try to allocate the actual bandwidth rationally to each direction according to the bi-directional bandwidth requirement ratio as much as possible. Can be seen that the optimization model is reasonable and effective.