摘要
缓解拥堵项目可减少温室气体排放,但基于单个变量(如仅基于出行距离)的CO2排放预测并不精确。为了准确预测缓堵项目减少的CO2排放量,利用车辆运行检测技术、车辆活动数据库及根据车辆类型设计的排放模型,通过分析速度与排放的关系绘制速度-排放曲线,并结合交通运行检测数据,评价缓堵策略、速度管理策略、交通平滑策略等交通运行管理技术在CO2减排方面的作用。以南加州某高速公路为例进行的研究显示,上述三项交通管理策略中任何一项都可减少7%～12%的CO2排放量;三条策略同时使用可减少大约30%的CO2排放量。
Congestion mitigation programs can reduce CO2 emis-sions,but the prediction of CO2 emissions based on a single vari-ables（such as only based on travel distance） is not accurate.In order to measure the CO2 emissions re-duced by congestion mitigation pro-grams,this paper uses vehicle activ-ity measurements,vehicle activity database,and emission models de-signed for different vehicle types.By analyzing the relationship be-tween speed and CO2 emissions,the paper develops emissions-speed curves,and evaluates the effect oftraffic operational management techniques,which are congestion mitigation,speed management,traf-fic smoothing,on CO2 emission re-duction combining with Traffic op-eration test data.The study on a freeway in Southern California shows that the three improvements in managing traffic operations can reduce CO2 emissions：Each of them can reduce CO2 emissions by 7 to 12 percent.All three in combi-nation can reduce CO2 emissions by approximately 30 percent.
出处
《城市交通》
2012年第1期89-94,共6页
Urban Transport of China
关键词
交通拥堵
温室气体
车辆活动数据库
排放模型
速度-排放曲线
交通运行管理技术
traffic congestion
green-house gas
vehicle activity data-base
emission models
emis-sions-speed curves
traffic opera-tional management techniques
