CALINE4 - A DISPERSION MODEL FOR PREDICTING AIR POLLUTANT CONCENTRATIONS NEAR ROADWAYS. FINAL REPORT

A description of the California Line Source Dispersion Model, CALINE4, is given. The model uses traffic emissions, site geometry and meteorology to predict air pollutant concentrations near roadways. Predictions can be made for carbon monoxide, nitrogen dioxide and suspended particles. Options for modeling near intersections, parking lots, elevated or depressed freeways, and within canyons are given. A modal emissions model developed for the CALINE4 intersection link option is described. Also, an adjustment for transient emissions is developed. Computer documentation and user instructions for CALINE4 are included in the report.

• Corporate Authors:

  California Department of Transportation

  Transportation Laboratory
  5900 Folsom Boulevard
  Sacramento, CA  United States  95819

  Federal Highway Administration

  1200 New Jersey Avenue, SE
  Washington, DC  United States  20590
• Authors:
  • Benson, P E
• Publication Date: 1984-11

Media Info

• Pagination: 277 p.

Subject/Index Terms

• TRT Terms: Air pollution; Canyons; Carbon monoxide; Concentration (Chemistry); Depressed highways; Exhaust gases; Forecasting; Highway bridges; Intersections; Mathematical models; Nitric oxide; Nitrogen oxides; Parking lots; Particulates
• Uncontrolled Terms: Concentration
• Old TRIS Terms: Dispersion
• Subject Areas: Highways; Terminals and Facilities;

Filing Info

• Accession Number: 00474935
• Record Type: Publication
• Source Agency: National Technical Information Service
• Report/Paper Numbers: FHWA/CA/TL-84/15, TL-604167
• Files: TRIS, USDOT, STATEDOT
• Created Date: Oct 31 1987 12:00AM