详情

Quantify the Real Impact of Transportation Activity on Regional Ozone and Near-Road PM Concentrations

项目名称：	Quantify the Real Impact of Transportation Activity on Regional Ozone and Near-Road PM Concentrations
摘要：	TxDOT and its partner agencies are required to comply with the requirements of the transportation conformity requirement. Transportation conformity is an emissions control-centric process built on the assumption that that reducing emissions from transportation activities would lead to better air quality. However, the air quality observations collected since the onset of the COVID-19 pandemic shows ambient ozone and particulate matter of less than 2.5 micrometer in aerodynamic diameter (PM2.5), concentrations have a mixed response to the significant changes in traffic activities and emissions. This trend has raised questions regarding the extent of the transportation’s impacts on air quality. This study will bridge the gap in the understanding of the actual extent of transportation activities' impacts on regional and near-road air quality. The research team will study three major activities for selected case study areas: 1) Analysis of before- and during-pandemic traffic activity and air quality monitoring data. 2) Evaluate the performance of air dispersion modeling in capturing the changes of near-road PM2.5 concentrations in near-road environment resulting from traffic activity variations. 3) Evaluate the performance of photochemical modeling in capturing the changes of regional ozone in response to changes of traffic activities. The study will also result in a characterization of COVID-19 restrictions’ impacts on traffic activities and air quality.
状态：	Active
资金：	537,321
资助组织：	Texas Department of Transportation
项目负责人：	Pridgen, Shelley
执行机构：	Texas A&M Transportation Institute<==>The University of Texas at El Paso
开始时间：	20210907
预计完成日期：	20240430
主题领域：	Environment；Planning and Forecasting