Air Quality Simulation of Traffic Related Emissions: Application of Fine-Scaled Dispersion Modelling

This paper focuses on developing and validating the CALMET-CALPUFF modelling system to be ultimately used as a tool for evaluating the potential air quality impacts of transportation plans. Our study is set in the Montreal Metropolitan Area. For this purpose, emissions of Nitrogen Oxides (NOx) were modelled using a transportation and emissions model which accounts for individual trips and vehicle types. Hourly Nitrogen dioxide (NO2) concentrations were simulated and validated against measurements taken for the same time period. Our results show a reasonable performance of the dispersion model with 0.77 correlation between simulated and observed concentrations in January. The simulated concentrations are often lower than the observed concentrations partly due to the fact that the emissions of trucks and point sources (e.g. industrial and residential) are unaccounted for.


  • English

Media Info

  • Media Type: Web
  • Pagination: 1 PDF file, 354 KB, 7p.
  • Monograph Title: Canadian Transportation Research Forum 50th Annual Conference - Another 50 Years: Where to From Here?//Un autre 50 ans : qu'en est-il à partir de maintenant? Montreal, Quebec, May 24-26, 2015

Subject/Index Terms

Filing Info

  • Accession Number: 01605023
  • Record Type: Publication
  • Source Agency: Transportation Association of Canada (TAC)
  • Files: ITRD, TAC
  • Created Date: Jul 26 2016 5:04PM