TxDOT Research Library - Publication Details

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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:

Project Summary

Type:

Online document

1 PDF (2 pages)

Online Access:

https://tti.tamu.edu/documents/0-6943-PSR.pdf

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

Print Copy

Collection:

TxDOT/University Research PSR Online Only

Call Number:

6943 PSR

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TxDOT Research Projects Database

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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

5/19/2025 13:41:28

Cataloged

October 19, 2020 11:29:13

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