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Development of Vehicle Emission Model with a High Resolution in Time and Space  

Park, Seong-Kyu (Dept. of Environmental Engineering, University of Seoul)
Kim, Shin-Do (Dept. of Environmental Engineering, University of Seoul)
Park, Ki-Hark (College of Natural Sciences, Seoul National University)
Publication Information
Journal of Environmental Health Sciences / v.30, no.3, 2004 , pp. 293-299 More about this Journal
Abstract
Traffic represents one of the largest sources of primary air pollutants in urban area. As a consequence, numerous abatement strategies are being pursued to decrease the ambient concentration of pollutants. A characteristics of most of the these strategies is a requirement for accurate data on both the quantity and spatial distribution of emissions to air in the form of an atmospheric emission inventory database. In the case of traffic pollution, such an inventory must be compiled using activity statistics and emission factors for vehicle types. The majority of inventories are compiled using passive data from either surveys or transportation models and by their very nature tend to be out-of-date by the time they are compiled. The study of current trends is towards integrating urban traffic control systems and assessments of the environmental effects of motor vehicles. In this study, a model of vehicle emission calculation by using real-time traffic data was studied. Traffic data, which are required on a street-by-street basis, is obtained from induction loops of traffic control system. It is possible that characteristics of hourly air pollutants emission rates is obtained from hourly traffic volume and speed. An emission rates model is allocated with a high resolution space by using geographic information system (GIS). Vehicle emission model was developed with a high resolution spatial, gridded and hourly emission rates.
Keywords
vehicle emission model; high resolution; line source;
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