路段动态特征中的交通组成因素研究

基于对交通流建模过程中将车型单一考虑为标准小汽车,忽略了现实交通量中车型的不同构成,本文通过对不同车型的动力特性进行标定,将其特性反映在跟车模型与车道变换模型中,并且利用交通仿真技术,分析了交通量构成对路段行程时间、车速、延误等动态特性指标的影响。

Study on the Influence of Traffic Composition on Road Link Dynamics

Based on the assumption of road traffic as an unique unified vehicular type,i.e.,the Passenger Car Unit(PCU)and the ignorance of traffic composition types,this paper will incorporate such link dynamics as dynamic link travel time into the car following model and the lane changing model by calibrating the different dynamic characteristics for diferent types of vehicles as well as by use of a traffic simulation software package.The influences of different traffic compositions on the characteristics of road link dynamics are fully analyzed in this paper.