AIR MONITORING PROGRAM TO DETERMINE THE IMPACT OF HIGHWAYS ON AMBIENT AIR QUALITY
This work represents the final report on research comparing air pollutant concentrations measured near highways to concentrations predicted by highway atmospheric dispersion models. The procedure used was to conduct six separate field experiments over a two-year period of time at three different locations in Nashville, Tennessee. The three locations chosen represented different types of highway configurations and terrain features. Measurement of air pollution, meteorological conditions (wind speed, direction, and stability) traffic conditions (volume, speed, and HDV) and topographic dimensions were all collected synchronously for use in model comparisons. The models tested include the EPA HIWAY model, the California Line Source model, and SRI's Street Canyon submodel. Also an empirical model was developed which predicts downwind dispersion due to the turbulent wake induced by moving vehicles and the time traveled by the wake as it is transported away from the highway by the wind. The report contains a description of the field monitoring procedures, monitoring sites, and data handling procedures employed. It describes the diffusion models tested and presents general solutions (nomographs) of the models. The results of model validations performed on data from at-grade and complex highway terrain are presented.
University of Tennessee, Knoxville203 Administration Building
Knoxville, TN USA 37996-0700
Washington, DC USA 20590
Nashville, TN USA 37219
- Noll, K E
- Miller, T L
- Rainey, R H
- May, R C
- Publication Date: 1975-7-1
- Pagination: 233 p.
- TRT Terms: Air pollution; Alternatives analysis; Atmospheric interference; Automobiles; Carbon monoxide; Concentration (Chemistry); Environment; Exhaust gases; Field tests; Highways; Hydrocarbons; Impact studies; Location; Mathematical models; Meteorology; Model atmosphere; Monitoring; Nitric oxide; Nitrogen oxides; Position fixing; Shape; Terrain; Topography; Traffic; Turbulence; Velocity; Wind
- Uncontrolled Terms: Concentration; Configuration; Data; Models
- Old TRIS Terms: Ambience; Dispersion; Wind velocity
- Subject Areas: Design; Geotechnology; Highways; Operations and Traffic Management;
- Accession Number: 00136907
- Record Type: Publication
- Source Agency: National Technical Information Service
- Report/Paper Numbers: Final Rpt.
- Files: NTIS, TRIS, USDOT, STATEDOT
- Created Date: Jul 22 1976 12:00AM