Modeling and Measurement of Vehicle Emissions from Roadways. Volume 1

摘要

Both experimental and model development in air pollution research near roadways was conducted. The original TXLINE model was modified so that it was suitable for use in modeling finite line sources. The modification enables the model to be used in modeling pollutant dispersion on curved roads and other types of scenarios for which an infinite line source model would not be applicable. The modification also allows the model to be used in predicting pollutant concentrations upwind of a roadway. The Texas intersection model, TEXIN was reviewed. Finally, the collection of a large experimental data base was performed under the project. Data on meteorology, traffic, and pollutant concentrations were obtained in Houston, Texas. These data were used in the mass balance technique to estimate carbon monoxide emission factors which were then compared to the simulated factors obtained by the EPA model MOBILE3. The primary purpose of the data base is the improvement and development of future roadway air quality models.