基于多主体仿真的西直门立交桥拥塞分析

Congestion Analysis of XIZHIMEN Cloverleaf Junction Based on Multi-agent Simulation

北京市西直门立交桥因为其结构复杂性以及交通堵塞的严重程度,成为媒体以及市民的关注对象。对该桥是重建还是修补各界人士均有不同看法。文中创造性地把西直门桥作为一个复杂系统来研究,通过使用基于多主体仿真的计算机建模技术(ABM)对其交通情况进行了仿真。经过反复观察模型运行的结果,对立交桥的拥塞发生的特点及原因进行了分析,提出了改善拥塞状况的方案,得出采用多主体仿真技术把西直门桥作为复杂系统研究具有科学性和启发性的结论。并对该模型的扩充和深入研究提出了进一步的设想。

XIZHIMEN Cloverleaf Junction becomes the focus of people in Beijing because of its complex structure and severe congestion.There is a hot discussion whether to rebuild it or to repair it.By studying traffic situation of the area of Cloverleaf Junction,the paper analyzes the XIZHIMEN traffic system as a complex system.and then uses ABM method to look into the cloverleaf junction.By observing model running many times,the paper analyzes the jam situation as well as its cause using graphs and statistics,then raises an improvement scheme.At the same time the paper comes to a conclusion that it is scientific and illuminative to use ABM for dealing with XIZHIMEN Cloverleaf Junction complex system.Also the paper conceives more with the model expansion and further research.