快速路平曲线半径对交通排放的影响分析  

Analysis the Influence of Urban Expressway Curve Radius on Traffic Emission

作　　者：桑迪 石琴 SANG Di;SHI Qin(School of Automobile and Traffic Engineering,Hefei University of Technology,Hefei Anhui 230009,China)

机构地区：[1]合肥工业大学汽车与交通工程学院,安徽合肥230009

出　　处：《交通节能与环保》2018年第4期67-71,共5页Transport Energy Conservation & Environmental Protection

摘　　要：本文主要研究了快速路平曲线半径与交通特征参数对车速和交通排放的影响。根据合肥市四条典型快速路平曲线路段实测数据,建立了断面车速预测模型,并选择COPERT Ⅳ排放模型对合肥市轻型机动车排放因子进行测算。基于模型模拟数据,分析了行驶速度与平曲线半径对排放因子的影响,拟合了污染物CO排放因子与速度的函数关系。最后基于断面车速预测模型,建立了合肥市平曲线路段轻型车污染物排放量预测模型,并进行实例计算。This paper studied the influences of expressway curve radius and traffic characteristics parameters on vehicle speed and traffic emissions.Firstly,the prediction model of section velocity was established using the measured data of four typical expressways in Hefei city.Then,The emission factor of light vehicle in Hefei City was calculated by choosing the COPERTⅣemission model.Based on the model simulation data,The influence of driving speed and horizontal curve radius on emission factor was analyzed,and the relationship between CO emission factor and velocity was developed.Finally,the prediction model of pollutant emissions of light vehicles in the horizontal curve section of Hefei was established based on the section velocity prediction model,and the calculation example is given.

关 键 词：城市交通 排放因子 COPERTⅣ模型 平曲线路段 

分 类 号：U491.9[交通运输工程—交通运输规划与管理]