Research needs and evaluation of air pollution problems associated with vehicular emissions.

PDFTech ReportFHWA/LA-921/239LA HPR #91-7GT(B)Air pollutionAir quality managementMathematical modelsData collectionLouisianaLouisiana State University, Baton RougeRoy, D.Adrian, D. D.Hewitt, H.Knecht, A. T.Fang, C. S.Muirhead, D.Greenlaw, P.Shetty, S.Louisiana State University (Baton Rouge, La.). Dept. of Civil and Environmental EngineeringLouisiana Transportation Research CenterUnited States. Federal Highway AdministrationUS Transportation CollectionThe objective of this investigation is to determine if there is currently an adequate organization of technical and scientific knowledge to accurately estimate the impact of mobile sources on urban air quality. Engineering problems related to vehicular emissions, transportation control measures, smog formation, and mathematical models are identified rather than solved. The relation between mobiles sources and air quality is systematically evaluated by dividing the process into linkages: 1) the impact of transportation control measures on travel behavior, 2) the impact of travel behavior on vehicular emissions, and 3) the impact of vehicular emissions on air quality. The literature of each analysis stage is reviewed and research needs are prioritized based on inadequacies in the current state of knowledge. Inadequacies in data collection methods, real world experiences and scientifically validated procedures for estimating impacts are outlined