摘要
为研究由于交通模式的差异引起的暴露水平的变化,将监测设备安装在检测车上,检测车以差异的速度行驶模拟出行者在城市道路中不同交通模式下的通行过程.在2013年7～8月的10个采样日中,保持监测车的行驶速度分别为5,15,30km/h依次模拟行人、自行车和电动车在城市道路上行驶,移动检测值为该交通模式下的污染暴露浓度.结果显示步行时平均暴露水平最高,其次为自行车和电动车模式.在3种道路模拟场景中,暴露水平均值由高到低依次为主干路〉快速路〉支路.与文献结果对比,CO的暴露水平模拟效果优于NOx,且该模拟方法的效率优于传统研究方法.
To characterize the difference of exposure level when traveling on different traffic modes, measuring devices were installed on a test vehicle, to simulate people＇s traverse process over different transport modes at different moving speeds. In 10 sampling days in July and August, 2013, three transport modes included foot, bicycle and electric motor were simulated by test vehicle moving at 5km/h, 15km/h and 30km/h in the urban area, respectively. Mobile measurement represented the exposure level of corresponding transport modes. Results indicated that peak exposure happened in arterial roads with expressway and bypass follow, and exposure level in the holidays were higher than that of weekdays. Comparison of mobile measurement results with literature results indicated that simulation performance of exposure to CO was superior to NOx, taus this simulation method was more effective than the traditional method.
出处
《中国环境科学》
EI
CAS
CSCD
北大核心
2014年第11期2734-2740,共7页
China Environmental Science
基金
国家“863”项目(2012AA063303)
