基于巡航控制极限模型的瞬时交通排放仿真分析

Simulation Analysis of Instantaneous Traffic Emissions Based on the Cruise Control Limit Model

本文基于巡航控制极限模型,研究了减速带对交通流系统排放的影响。仿真结果表明,在周期性边界条件下,如果车辆密度较小,减速带的增多会导致二氧化碳(CO_(2))和颗粒物(PM)排放量显著上升;如果车辆密度足够大,减速带对系统排放几乎没有影响。将本文模型与NaSch模型的计算结果进行比较,发现当道路车流密度低且减速带数量设置合理时,系统拥有更大的交通流量和行驶速度,同时CO_(2)和PM排放会更少。

Based on the cruise control limit model,this paper studies the effects of speed humps on the emission of traffic flow system.The simulation results under periodic boundary conditions show that when vehicle density is low,the increase of speed humps leads to a significant increase in carbon dioxide(CO_(2))and particulate matter(PM)emissions.If the vehicle density is high enough,the speed humps has little effect on the emissions of the system.Compared with the calculation results obtained in the NaSch model,when the road traffic flow density is low and the number of speed humps is set reasonably,the advantage is that the system has greater traffic flow and driving speed,with less CO_(2) and PM emissions.