National Academies Press: OpenBook

Volume 1: TRAQS User Guide (2018)

Chapter: TRAQS User Guide

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Suggested Citation:"TRAQS User Guide." National Academies of Sciences, Engineering, and Medicine. 2018. Volume 1: TRAQS User Guide. Washington, DC: The National Academies Press. doi: 10.17226/25228.
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Suggested Citation:"TRAQS User Guide." National Academies of Sciences, Engineering, and Medicine. 2018. Volume 1: TRAQS User Guide. Washington, DC: The National Academies Press. doi: 10.17226/25228.
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Below is the uncorrected machine-read text of this chapter, intended to provide our own search engines and external engines with highly rich, chapter-representative searchable text of each book. Because it is UNCORRECTED material, please consider the following text as a useful but insufficient proxy for the authoritative book pages.

TRAQS Transportation Air Quality System User Guide Contract NCHRP 25-48 from: Transportation Research Board (TRB) National Academy of Sciences (NAS) National Cooperative Highway Research Program (NCHRP) Developed by Lakes Environmental Software & RSG Inc. Jesse L. Thé, Ph.D., P.Eng. Cristiane L. Thé, M.A.Sc. Robert Chamberlin, PE, PTOE Michael Johnson, B.Sc.

TRAQS User Guide Page 2 DISCLAIMER This document and accompanying software follow the MOVES2014a, EMFAC2014, and AERMOD models to the best of our understanding. Note that this Users Guide covers only how to use TRAQS to perform project level analysis. This manual presumes that users already have a basic understanding of the MOVES and AERMOD modeling systems as well as some experience performing the project level analysis. This manual does not constitute guidance, as users are responsible for understanding and complying with all regulatory guidance and existing modeling requirements.

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TRB's National Cooperative Highway Research Program (NCHRP) Web-Only Document 246: Volume 1: TRAQS User Guide provides guidance for using the TRansportation Air Quality System (TRAQS). TRAQS is an open source software designed to conduct mobile air quality assessments for three primary purposes:

  1. Project-Level Conformity (Hot-Spot Analyses)
  2. National Environmental Policy Act (NEPA)
  3. General Transportation Planning

TRAQS is designed to streamline the model process and minimize any limitations of standalone software packages by integrating individual models and databases into a user-friendly, intuitive Graphical User Interface. It provides access to advanced modeling tools and mapping features. Overall, TRAQS offers the capabilities necessary to complete a Project-Level air quality analysis with increased accuracy and efficiencies.

Download the open source software as well as NCHRP Web-Only Document 246: Volume 2, TRAQS: A Combined Interface for Project-Level Air Quality Analysis, which accompany the Users Guide.

Note: TRAQS functions with versions of air quality models current as of December 2016: MOVES2014a and EMFAC2014.

TRAQS is written in Python, an open-source programming language. Developers or users who wish to customize or enhance TRAQS may download the source code from the project web page.

This software is offered as is, without warranty or promise of support of any kind either expressed or implied. Under no circumstance will the National Academy of Sciences or the Transportation Research Board (collectively "TRB") be liable for any loss or damage caused by the installation or operation of this product. TRB makes no representation or warranty of any kind, expressed or implied, in fact or in law, including without limitation, the warranty of merchantability or the warranty of fitness for a particular purpose, and shall not in any case be liable for any consequential or special damages.

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