公交车站有效泊位换算系数的元胞自动机仿真分析  

Effective berth conversion coefficient based on cellular automaton at bus stop

作　　者：刘锐[1] 严宝杰[1] 刘芸欣[2] 

机构地区：[1]长安大学公路学院,陕西西安710064 [2]中铁大桥勘测设计院有限公司,湖北武汉430050

出　　处：《西安建筑科技大学学报（自然科学版）》2008年第3期434-438,共5页Journal of Xi'an University of Architecture & Technology(Natural Science Edition)

摘　　要：为了研究具有多个泊位的在线公交车站的有效泊位数量,提出在相同的公交车辆排队概率情况下,将多泊位公交车站能服务的最大公交车辆到达率与1个泊位的最大公交车辆到达率比值作为确定有效泊位换算系数的计算方法.构建了适用于在线公交车站车辆运行的一维慢启动多元胞自动机仿真模型.该模型将一辆公交车分解成多个元胞,同时允许车辆纵向跨越多个连续元胞前进,以适应较小时间步长的情况下,公交车辆低速运行的要求.利用仿真模型就具有1个泊位、2个泊位、3个泊位的公交车站分别进行了仿真,并对其有效泊位折算系数进行了计算分析.In order to study the efficiency of multiple on-line loading areas at bus stop, a method is proposed that under the same probability bus queuing, the ratio between the multiple berths bus arrival rate and one berth＇s being the effective berths conversion coefficient. One-dimension slow-to-start multi-cellular automaton model of the bus running in the online stop is presented. In the model, multi-cells the bus is allowed to span a number of consecutive cells in the longitudinal direction. The multi-cellular model can simulate the low-speed running bus, when the time step size is small. And the effective berths conversion coefficient is analyzed and computed based on the 1 berth on-line stop, 2 berths On-Line stop, and 3 berths on-line stop＇ simulation results.

关 键 词：交通工程 有效泊位换算系数 多元胞自动机 公交车站 仿真模型 

分 类 号：TU-9[建筑科学]