Office of Operations Freight Management and Operations

Freight and Air Quality Handbook

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Contact Information: Operations Feedback at

U.S. Department of Transportation
Federal Highway Administration

Office of Freight Management and Operations
1200 New Jersey Ave., SE
Washington, DC 20590
Phone: 202-366-9210
Fax: 202-366-3302
Web site:

United States Department of Transportation Federal Highway Administration

May 2010

Table of Contents


1.0 Introduction

2.0 Background on Freight-Related Air Quality

2.1 Emissions and Air Quality Impacts

2.2 Freight Sources of Air Pollutants

2.3 Regulatory Environment

3.0 Strategies for Freight Transportation-Related Emission Reduction/Air Quality Improvement Projects

3.1 Technology Strategies

3.2 Operational Strategies and Transportation System Management

4.0 Funding and Financing Tools for Freight Air Quality Improvements

4.1 State of the Practice

4.2 Federal-Aid Highway and Rail Programs

4.3 Federal Financing Tools

4.4 EPA National Clean Diesel Campaign

4.5 State, Local, and Nonprofit Programs

5.0 Case Studies

5.1 Technological Focus

5.2 Operational Focus

Glossary of Terms

List of Tables

3.1 Summary of Technology Strategies to Reduce Freight Emissions

3.2 Summary of Operational and Transportation System Management Strategies

4.1 U.S. DOT Funding Programs

4.2 Federal Financing Tools

4.3 EPA Funding Programs

List of Figures

2.1 Total NOx and PM10 Emissions by Mode

2.2 Future Freight-Related NOx and PM10 Emissions Change by Mode

2.3 Agency Roles and Responsibilities

3.1 Diesel Particulate Filter

3.2 Natural Gas Fueling Stations by State

3.3 Typical Hybrid-Electric Propulsion System

3.4 Example of Freight Vehicle Aerodynamic Improvements

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