publications
Title:

0-6943, Evaluation of Air Quality Models with Near-Road Monitoring Data

Report No.:
Summary Report 0-6943-PSR
Authors:
Research Performed by: Texas A&M Transportation Institute; Research Supervisor: Reza Farzaneh; Researchers: Suriya Vallamsundar [and seven others]

  

Published:
2020
College Station, Texas
Texas A & M Transportation Institute

  

Series:
TxDOT Research Product
Type:
Online document
1 PDF (2 pages)

Access Note:
175 KB
Summary
"Transportation agencies use air dispersion modeling (also known as air quality modeling) in evaluation of transportation projects to ensure their compliance with federal regulations including the National Environmental Policy Act and transportation conformity quantitative hot-spot analysis requirements. The literature indicates a wide range of variabilities involved in the modeling process for the particulate matter (PM) hot-spot analysis. The hot-spot analysis includes various modeling steps (traffic activity, emissions, and air dispersion) and is prone to different sources of variability including parameter uncertainty, parametric variability, algorithmic uncertainty, and model bias."

  



"Sparse real-world data have limited the possibility of evaluating the variabilities involved in the hot-spot process. Availability of near-road monitoring data has provided a new source of data to address this gap. This study evaluated the PM hot-spot process with near-road monitoring data. Researchers evaluated the sensitivity of the model predictions to different input parameters such as data sources (traffic, emissions, meteorological, and background concentration data), model options (source type and land use), and model choice (AERMOD and CAL3QHCR). In addition to the sensitivity analysis, researchers also evaluated the potential association between PM2.5 and key parameters." --Background

  

Publ. Place
College Station, Texas

  

Notes
"Project Completed: 08-31-2019"

  


• "Created 7/11/2019. Modified 10/9/2020"--PDF properties.

  

Study Number
TxDOT Research Project 0-6943

  

Study Sponsor
Lead University
TTI

  

Collection:
TxDOT/University Research PSR Online Only
Call Number:
6943 PSR
TxDOT Research Projects Database
Page:
Topics
Air quality
Environmental impacts
Mobile sources
Nonattainment areas
Pollution

Proper Names
TxDOT ENV Division


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Study
TxDOT Research Project 0-6943

Contributors
Farzaneh, Mohamadreza
Vallamsundar, Suriyapriya, 1983-
Jaikumar, Rohit
Venugopal, Madhusudhan
Askariyeh, Mohammad Hashem
Johnson, Jeremy D. (Jeremy Don)
Li, Wen-Whai
Chavez, Mayra Consuelo
Ramirez, Ivan M.

Updated
10/7/2026 15:09:33
Cataloged
October 19, 2020 11:29:13

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