Dynamic Programming Approach for Optimization of Arterial Offset with Multi-bandwidth
The control objective of traditional arterial offset optimization usually takes green-wave bandwidth, or delay as a control objective. It does not build an analytic relation between delay and green-wave bandwidth. Consequently, according to graphic method and queue analysis based on vehicle arriving rate and discharging rate, a linear relation between delay and green-wave bandwidth is built; furthermore, making number of vehicle passing intersections over bandwidth maximum is regarded as a control objective, and geometry function is used to distribute forward and backward green-wave bandwidth; and it is solved based on the dynamic programming. In a simulation of Yi-Le Middle Road in Beijing, it shows that, although, the green-wave bandwidth acquired by this new method is not definitely maximum, the bandwidth and the distribution of the forward and backward green-green wave bandwidth can reflect the change of the traffic flow more accurately and control queuing delay and green-wave bandwidth at the same time.
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万方数据
维普
