Record Display for the EPA National Library Catalog


Main Title ROADWAY--a numerical model for predicting air pollutants near highways : user's guide /
Author Eskridge, Robert E. ; Eskridge, R. ; Catalano, J.
Other Authors
Author Title of a Work
Catalano, Joseph A.
CORP Author Aerocomp, Inc., Costa Mesa, CA.;Environmental Protection Agency, Research Triangle Park, NC. Atmospheric Sciences Research Lab.
Publisher U.S. Environmental Protection Agency, Atmospheric Sciences Research Laboratory,
Year Published 1987
Report Number EPA/600/8-87/010; EPA-68-02-4106
Stock Number PB87-171906
OCLC Number 703856722
Subjects Air--Pollution--United States--Forecasting ; Air--Pollution--United States--Meteorological aspects
Additional Subjects Air pollution ; Highways ; Mathematical models ; Atmospheric diffusion ; Concentration(Composition) ; Ozone ; Nitrogen oxides ; Fortran ; Computer program ; Algorithms ; ROADWAY model ; Computer applications ; Pollutants
Internet Access
Description Access URL
Library Call Number Additional Info Location Last
EKBD  EPA-600/8-87-010 Research Triangle Park Library/RTP, NC 02/28/2011
NTIS  PB87-171906 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 148p
ROADWAY is a finite-difference model which solves a conservation of species equation to predict pollutant concentrations within two hundred meters of a highway. It uses surface layer similarity theory to predict wind and eddy diffusion profiles from temperature at two heights and wind velocity upwind of the highway. A unique feature of the model is its use of vehicle wake theory which was originally developed by Eskridge and Hunt (1979), and was modified by Eskridge and Thompson (1982); Eskridge and Rao (1983, 1985). It is assumed that vehicle wakes affect the wind and turbulence fields in a linear manner with wake intensity a function of vehicle speed, downwind distance, and distance from the wake center. The user has the option of considering NO, NO2, and O3 chemical reactions near the road. Output from the model consists of x-z fields of wind components, eddy diffusion coefficients, and concentration of pollutant.
Prepared by Aerocomp, Inc. and Atmospheric Sciences Research Laboratory under contract no. "Febuary 1987." Includes bibliographical references. "EPA-600/8-87/010."