基于元胞自动机的自行车交通流仿真建模  

Modeling and simulation on bicycle traffic flow based on cellular automaton

作　　者：魏丽英[1] 应力天[2] 

机构地区：[1]北京交通大学运输学院,北京100044 [2]宁波市规划局镇海分局,浙江宁波315200

出　　处：《吉林大学学报（工学版）》2011年第1期51-55,共5页Journal of Jilin University:Engineering and Technology Edition

基　　金：'973'国家重点基础研究发展计划项目(2006CB705500);'十一五'国家科技支撑项目(2006BAG01A01);中央高校基本科研业务费专项资金项目(2009JBM043)

摘　　要：提出了一种自行车元胞自动机模型。该模型是在机动车Nagle-schreckenberg(NS)模型的基础上,考虑自行车的换道行为,在NS模型规则前加入路径选择规则,从而建立符合自行车行驶行为的模型。根据模型的规则,在不同最大速度、不同随机慢化概率、不同车道宽度等条件下进行了仿真分析,其通行能力及速度-密度仿真曲线均符合理论值。最后,通过实际观测数据验证了本文模型的可靠性。A bicycle traffic flow model was proposed based on the cellular automation. On the basis of the motor vehicle NS model, adding a lane changing rule, a more reasonable model was established. The model takes the lane changing rule, a more reasonable model was established. The model takes the lane changing of bicycles into account, is in better agreement with the real behavior of bicyclists. Simulations were performed under different conditions, such as of maximum speed, of random slowdown probability, of bicycle lane width. The obtained bicycle traffic capacity and speed-density graph were close to the theoretical values. The model was validated by the real observing and measuring data, and its validity and reliability were proved.

关 键 词：交通运输系统工程 元胞自动机 自行车交通流 交通仿真 自行车通行能力 

分 类 号：U491.3[交通运输工程—交通运输规划与管理]