Research for the AASHTO Standing Committee on the Environment. Task 78. Programmatic Agreements for Project-Level Air Quality Analyses Using MOVES, CAL3QHC/R and AERMOD

At the national level, average carbon monoxide (CO) concentrations have decreased substantially over the years. As of September 2010, all CO nonattainment areas have been redesignated to maintenance areas. Federal requirements for modeling project-level "hot-spot" analyses with the Environmental Protection Agency (EPA) Motor Vehicle Emission Simulator (MOVES) (new model) and either CAL3QHC or AERMOD create challenges for state DOTs and other agencies responsible for project implementation. These challenges may be partly addressed through programmatic agreements (PAs) and categorical findings (CFs) for project-level analyses based on the new models and guidance. PAs need to meet National Environmental Policy Act (NEPA) requirements for transportation improvement projects in all locations. CFs need to meet federal transportation conformity rule requirement in designated nonattainment and maintenance areas. PAs are typically executed between state departments of transportation (DOTs) and the United States Department of Transportation (USDOT) (Federal Highway Administration (FHWA)/Federal Transit Administration (FTA)). USDOT makes project level conformity determinations. The FHWA has recently initiated a process to develop, in consultation with EPA (in accordance with the requirements of the conformity rule), regional or multi-state CFs for both carbon monoxide (CO) and particulate matter (PM). This project is aimed at developing standard approaches to streamline air quality analyses relating to CO and PM.


  • English


  • Status: Completed
  • Contract Numbers:

    Project 25-25, Task

  • Sponsor Organizations:

    Federal Highway Administration

    1200 New Jersey Avenue, SE
    Washington, DC  United States  20590

    American Association of State Highway & Transportation Officials

    444 North Capitol Street, NW, Suite 225
    Washington, DC  United States  20001

    National Cooperative Highway Research Program

    Transportation Research Board
    500 Fifth Street, NW
    Washington, DC  United States  20001
  • Project Managers:

    Jencks, Crawford

  • Performing Organizations:

    ICF International

  • Principal Investigators:

    Carr, Edward

  • Start Date: 20130726
  • Expected Completion Date: 0
  • Actual Completion Date: 20150228
  • Source Data: RiP Project 37871

Subject/Index Terms

Filing Info

  • Accession Number: 01545239
  • Record Type: Research project
  • Source Agency: Transportation Research Board
  • Contract Numbers: Project 25-25, Task
  • Files: TRB, RiP
  • Created Date: Nov 26 2014 1:00AM