Analysis of the effectiveness of control measures to mitigate road dust emissions in a regional network

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• 作者：Dongzi Zhu^a ; ^{dongzi.zhu@dri.edu} ; Hampden D. Kuhns^a ; John A. Gillies^a ; Vicken Etyemezian^b ; Scott Brown^c ; Alan W. Gertler^a
• 关键词：Road dust emissions ; Road cleaning policies ; Summer and winter road sweeping
• 刊名：Transportation Research Part D ; Transport and Environment
• 出版年：2012
• 期刊代码：36_13619209
• 类别：dec
• 出版时间：June, 2012
• 卷：17
• 期：4
• 页码：332-340
• 文件大小：793 K

摘要

The effectiveness of control measures to reduce road dust emissions is analyzed using a year鈥檚 data of road dust emissions collected with a mobile sampling platform and a survey of road maintenance practices in the Lake Tahoe Basin of Nevada and California US. Attributes such as sweeping practices, anti-icing, shoulder improvement, pavement condition, trackout, and abrasive material from road segments were analyzed with a feature subset selection algorithm. Street sweeping was found to be an effective means of controlling dust emissions from roads. Road dust from dirty tertiary roads served as a continuous source of suspendable material for adjacent high-speed roads in the winter time. To be most effective, emission control strategies require that not only primary roads, but all roads be swept after snow storms to recover applied abrasive material.