基于仿真优化的公交站点泊位分配问题研究
首发时间:2019-10-31
摘要:公交站点的通行能力是限制公交系统通行能力提高的主要瓶颈。公交站点的泊位数量设置对其通行能力有着直接影响。在公交系统运行中,线路中的不同站点运行状态差异大且相互影响,对站点泊位数量的设置存在干扰。本文考虑线路中不同站点的服务强度、不确定的车辆服务时间和站间行驶时间、站点采用的超车机制等多重因素,以公交车辆与乘客的平均延迟时间为目标函数,利用仿真优化技术对整条线路连续多个站点的泊位数量进行优化,获取最优泊位数量分配方案。相较于实际中站点泊位分配情况,优化后线路中的公交车辆与乘客的平均延迟时间降低14%以上,研究结果对线路中公交站点泊位数量设置与通行能力的提高提供了借鉴意义。
关键词: 公交站点通行能力 泊位数量优化 遗传算法 公交仿真系统
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Research on Berth Allocation of Bus Station Based on Simulation Optimization
Abstract:The capacity of bus stop is the main bottleneck to limit that of bus transit capacity. Berth\'s quantity at the bus stop has a direct impact on its capacity. When transport system is operating, stations in the line affect each other, which will account for the quantity of berths in the stations. Considering various factors such as service intensity, uncertain service time and inter-stations travel time as well as the overtaking mechanism adopted by the stations, this paper takes average delay time of bus vehicles and passengers in system as the objective function, then optimization technology based on simulation are used to obtain an optimal berth allocation scheme for a bus line. Compared with the actual berth allocation, the optimal result can greatly reduce the delay time of the bus and passengers by more than 14%. The research can provide reference for the berth allocation optimization for transit department.
Keywords: bus stop capacity berth quantity optimization genetic algorithm bus simulation system
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基于仿真优化的公交站点泊位分配问题研究
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