基于SUMO平台的微观交通仿真研究

微观交通仿真在城市交通控制系统中有着重要地位,而微观仿真模型的建立是其主要内容之一。Krauss模型是基于安全车速范式的微观、空间连续的车辆跟驰模型,为避免原始Krauss模型中加速度突变的问题,本文在其基础上提出了融合车辆减速度渐变过程的新模型。在SUMO仿真平台上编程实现了改进后的车辆跟驰模型,并在同等条件下对原始模型和改进模型进行了实例仿真分析,结果表明改进后的模型在一定程度上避免了加速度突变问题,交通流运行的仿真情况在整体性能上有显著改善,仿真效果与现实交通情况更趋一致。

A Study of Microscopic Traffic Simulation Based on the SUMO Platform

Microscopic traffic simulation has high importance in the urban traffic control systems,and the establishment of a microscopic simulation model is one of its main contents.The Krauss model is a microscopic,space-continuous,car-following model based on the safe speed paradigm.In order to avoid appearing deceleration mutation,this paper proposes a new model based on the Krauss model.This model considers the gradual process of deceleration in vehicle’s braking.By implementing the new model on the SUMO platform(Simulation of Urban MObility) and carrying out experiments for the two models under the same situation,the new model achieves good results in avoiding the deceleration mutation to a degree and has better performance on several parameters.