Table of Contents

• Acknowledgments
• List of Figures
• List of Tables
• Acknowledgments
• Executive Summary
  • ES.1 Overview
  • ES.2 Background
  • ES.3 Research Recommendations
    • Approach
    • Findings
• 1. Introduction
  • 1.1 Overview
  • 1.2 What is Particulate Matter?
  • 1.3 Why is PM Important?
    • 1.3.1 Regulatory Framework
    • 1.3.2 Potential Regulatory Issues
  • 1.4 Research Coordination
  • 1.5 Developing a Strategic Research Plan for PM
  • 1.6 Caveats Concerning Potential Funding
  • 1.7 Research Priorities Organized By Completion Time
• 2. Research Needs by Focus Area
  • 2.1 Basic Research
  • 2.2 Applied Research
• 3. High-priority Research topics
  • 3.1 Monitor Near Roadways
  • 3.2 Evaluate Hot-Spot Models
  • 3.3 Develop and Evaluate PM Emissions Models
  • 3.4 Evaluate Costs and Benefits of Control Measures
• 4. Medium-priority research topics
  • 4.1 Collect Information on Fugitive Dust Emissions
  • 4.2 COMPILE a Compendium of Control Strategy Information
  • 4.3 Create Short-Term Mobile Fixes
  • 4.4 Create a Data Information Repository for the Transportation Community
  • 4.5 Evaluate Roadway project Effects on Emissions
  • 4.6 Improve Information for Mobile Users Regarding Default Assumptions
  • 4.7 Improve PM Measurements
  • 4.8 Increase Spatial Extent and Temporal Resolution of PM Measurements
  • 4.9 Collect Exhaust Emissions for Gross-Emitters
  • 4.10 Estimate and Reduce the Uncertainty in the Transportation Planning, Emissions Estimation, and Air Quality Management Process
• 5. Low-priority research topics
• 6. FINDINGS
• 7. References
• APPENDIX A: APRIL 7, 2005, FHWA PM WORKSHOP PARTICIPANTS
• APPENDIX B: UPDATED RESEARCH TABLES FROM THE TRANSPORTATION AND PM LITERATURE ASSESSMENT
• APPENDIX C: PROPOSED PROJECTS FROM THE 2000 TO 2004 PM RESEARCH