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智能交通系统可以实时反馈路况信息、诱导出行,进而缓解交通拥堵.在时间反馈和平均速度反馈两种信息服务策略下,考虑重叠路段的影响,利用元胞自动机模型对人们的路径选择行为进行了模拟.结果表明,在含有重叠路段的网络中,相对时间反馈策略而言,平均速度反馈策略可以更有效地降低人们的出行时间,其优势在重叠部分长度占路径长度的比例很小和较大时十分明显,且随路径长度的增加而上升.在提高路网的利用效率方面,平均速度反馈策略的优势随路径长度的增加而逐渐下降,随重叠部分长度的增加而先降后升.
The intelligent traffic system can feedback the traffic information in real time to induce the traffic and alleviate the traffic jam.Using the time feedback and the average speed feedback, under the influence of overlapped sections, the cellular automata model is applied to the path selection behavior of people The simulation results show that the average speed feedback strategy can reduce the travel time of people more effectively than the time feedback strategy in the network with overlapped sections, It is obvious when the path length is large and increases with the length of the path.In the aspect of improving the utilization efficiency of the road network, the advantage of the average speed feedback strategy gradually decreases with the increase of the path length, and then decreases with the increase of the length of the overlap.