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基于浮动车数据分析交通状态对轻型车排放的影响

陈泳钊 刘永红 林晓芳 黄建彰

陈泳钊, 刘永红, 林晓芳, 黄建彰. 基于浮动车数据分析交通状态对轻型车排放的影响[J]. 环境科学研究, 2016, 29(4): 494-502.
引用本文: 陈泳钊, 刘永红, 林晓芳, 黄建彰. 基于浮动车数据分析交通状态对轻型车排放的影响[J]. 环境科学研究, 2016, 29(4): 494-502.
CHEN Yongzhao, LIU Yonghong, LIN Xiaofang, HUANG Jianzhang. Evaluating the Effects of Traffic States on Light-Duty Vehicle Emissions in Urban Area Based on Floating Car Data[J]. Research of Environmental Sciences, 2016, 29(4): 494-502.
Citation: CHEN Yongzhao, LIU Yonghong, LIN Xiaofang, HUANG Jianzhang. Evaluating the Effects of Traffic States on Light-Duty Vehicle Emissions in Urban Area Based on Floating Car Data[J]. Research of Environmental Sciences, 2016, 29(4): 494-502.

基于浮动车数据分析交通状态对轻型车排放的影响

基金项目: 国家自然科学基金项目(51108471);佛山市环境保护局委托项目(GDJAFS2014021D);广东省科技计划项目(2015B010110005)

Evaluating the Effects of Traffic States on Light-Duty Vehicle Emissions in Urban Area Based on Floating Car Data

  • 摘要: 为探讨交通状态对道路轻型车运行工况和尾气排放的影响,收集广州市珠江新城路网中出租车、轻型货车的浮动车数据并计算轻型车的运行工况参数,结合MOVES模型(Motor Vehicle Emission Simulator)和交通流量数据仿真计算轻型车的尾气排放量,分析畅通、拥堵、严重拥堵3种交通状态下轻型车的运行工况、排放速率、尾气排放量的变化与差异. 结果表明:在相同道路类型、不同交通状态下,轻型车的运行工况差异较大,其中拥堵和严重拥堵状态下运行模式分布主要集中于怠速、低速运行模式;在相同交通状态下,主干路的运行工况优于次干路,其怠速运行模式所占比例较次干路低15%~20%;畅通状态下,主、次干路轻型车HC、NOx、CO平均单车排放速率分别为2.00、1.87,2.57、2.47,42.59、37.51 mg/s,分别约为拥堵状态下的1.17、1.27、1.35倍,约为严重拥堵状态下的1.30、1.39、1.70倍,而主、次干路PM2.5平均单车排放速率在3种交通状态下均接近,范围在0.050~0.056 mg/s之间;轻型车在严重拥堵状态下单位时间的污染物排放量最高,是畅通状态下的2.22~3.87倍. 研究显示,交通状态是影响轻型车动态排放速率及道路总排放的重要因素.

     

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出版历程
  • 收稿日期:  2015-06-03
  • 修回日期:  2016-01-19
  • 刊出日期:  2016-04-25

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