The atmosphere of the world's cities is increasingly affected by transport-related air pollution. Hence, poor air quality is fast becoming one of the most pressing and unrelenting environmental problems of our times. In response, a research project is underway to develop and build an integrated air quality model for transport-related pollution management in the greater Dublin area - DAQMS (Dublin Air Quality Modelling System). An integral part of transport-related pollution management and air quality assessment is the estimation of emissions from motor vehicles. To-date, no suitable methodology exists for determining motor vehicle emission factors in Ireland, taking into account the variations due to factors such as fuel, engine type, age and motor vehicle operating mode. Current computer models lack the sufficient detail required to properly predict an emissions inventory. This paper describes the development of a computer model to reliably calculate mobile source emissions. The model employs traffic information from the SATURN model, allowing the emissions produced on a given link or road to be identified from transportation planning data. Any subsequent changes in emission levels due to alterations in the road network can then be automatically assessed. In addition to this emission data, a dispersion model is used to predict variations in the ambient concentrations of pollutants by combining site-specific geometry and meteorology with the results from the emissions.
On-road motor vehicle emission inventory model
1998
10 Seiten, 11 Quellen
Aufsatz (Konferenz)
Englisch
On-road motor vehicle emission inventory
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