摘要
当拥堵强度比列车拥堵阈值大时将会引起车站拥堵,此外列车也会在原先拥堵状态下继续传播到临近站,并引起拥堵状态不断往外蔓延的情况。基于此,本文设计了一种基于灾害蔓延理论的轨道交通网络拥堵传播仿真方法。结果表明:仿真测试期间,所有车站都发生了拥堵传播区域不断扩大的现象,并逐渐进入稳定阶段。从交通网络系统的整体层面考虑,换乘站最易造成大范围的拥堵且传播速度最快。在更长初始拥堵强度时间下,拥堵传播数增加迅速,并在2s初始拥堵时间后进入稳定阶段。
When the congestion intensity is greater than the train congestion threshold,the station will be congested.In addition,the train will continue to spread to neighboring stations in the original congestion state,which will cause the traffic network to continue to spread out.In order to improve the congestion propagation efficiency of rail transit network,a simulation method of rail transit network congestion propagation based on disaster spreading theory was designed.The results show that during the continuous simulation test,the congestion propagation area is constantly expanding at all stations and gradually enters a stable stage.From the overall level of transportation network system,transfer stations are most likely to cause the largest range of congestion and produce the fastest propagation effect.When the initial congestion intensity time is longer,the number of congestion propagation increases rapidly and enters a stable stage at the initial congestion time of 2s.
作者
冯彦彦
Feng Yanyan(Henan Vocational College of Industry and Trade,Zhengzhou 450053,China)
出处
《青海交通科技》
2022年第5期1-4,共4页
Qinghai Transportation Science and Technology
基金
河南省高等学校重点科研项目(23B460022)。
关键词
轨道交通网络
拥堵传播
灾害蔓延
仿真
rail transit network
congestion transmission
spread of disasters
simulation
