Assessing the Cost-Effectiveness of Wyoming’s CMAQ Unpaved Road Dust Suppression Program (Year 2)

For a number of years, Wyoming counties have used Congestion Mitigation and Air Quality Improvement (CMAQ) funds to apply dust suppressants to their unpaved roads. These funds are intended to help reduce PM10 emissions (particulate matter less than 10 μm in diameter). Particulate matter is one of the U.S. Environmental Protection Agency’s six criteria pollutants affecting air quality. PM10 is referred to as “inhalable coarse particles,” such as those found near roadways. In the past, decisions as to where and how CMAQ funds are applied have been subjectively based on engineering judgment. This study will attempt to quantify the benefits and costs of these dust suppression efforts. This study will monitor dust suppressant application, surfacing aggregate type, traffic, weather, roadway performance, and fugitive dust emissions to provide a comprehensive assessment of the effectiveness of the dust suppression efforts paid for with CMAQ funds. Due to the performance difference between unpaved roads in drier and wetter climates, the results from this study will be most applicable to the interior western United States and to other drier climates throughout the world. The methodologies developed during this study will be applicable for assessing the effectiveness of any dust control efforts, regardless of differences in precipitation.


  • English


  • Status: Active
  • Contract Numbers:


  • Sponsor Organizations:

    Research and Innovative Technology Administration

    University Transportation Centers Program
    1200 New Jersey Avenue
    Washington, DC  United States  20590
  • Project Managers:

    Kline, Robin

  • Performing Organizations:

    University of Wyoming, Laramie

    1000 E University Avenue, Department 3295
    Laramie, WY  United States  82071
  • Principal Investigators:

    Ksaibati, Khaled

  • Start Date: 20140401
  • Expected Completion Date: 20180731
  • Actual Completion Date: 0
  • Source Data: MPC-451

Subject/Index Terms

Filing Info

  • Accession Number: 01580140
  • Record Type: Research project
  • Source Agency: Mountain-Plains Consortium
  • Contract Numbers: DTRT13-G-UTC38
  • Files: UTC, RiP
  • Created Date: Oct 29 2015 2:33PM