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基于行人仿真的社会力模型,考虑自行车对行人过街的干扰,引入自行车与行人及人行横道的相互作用,提出了一个改进的自行车与行人混合交通流的社会力模型,通过数值模拟,分析了自行车道的设置对混合交通流事故数及到达率的影响,再现了自行车和行人混合交通流中自行车的跟随和分层现象,这与交通实测结果相符合。仿真结果和实际数据的对比分析表明了修正模型的有效性;仿真结果也表明,设置自行车道能够有效缓解自行车和行人之间的冲突,有助于减少行人和自行车的事故数并提高混合交通流的运行效率;根据自行车数量,设置合理的自行车道,能够保证自行车达到最大过街速度,从而提高自行车的过街效率。模型能够重现混合交通流的自组织等聚集现象。
Based on the social force model of pedestrian simulation, considering the bicycle’s interference with pedestrian crossing, the paper introduces the interaction between bicycle and pedestrian and pedestrian crossing, and proposes an improved social force model of mixed traffic flow between bicycle and pedestrian. Through numerical simulation, Setting the impact of mixed traffic flow on the number of accidents and arrivals, and the following and stratification of the bicycles in the mixed traffic flow of bicycles and pedestrians are reproduced, which is in line with the measured results of traffic. The comparative analysis of the simulation results and the actual data shows the effectiveness of the revised model. The simulation results also show that setting bicycle lanes can effectively alleviate the conflict between bicycles and pedestrians, reduce the number of pedestrians and bicycles and improve the mixed traffic flow Of the operating efficiency; according to the number of bicycles, set a reasonable bike lane, to ensure that the bike to reach the maximum cross-street speed, thereby enhancing bike crossing efficiency. The model can reproduce the self-organized aggregation phenomenon of mixed traffic flow.