Acknowledgments

U.S. Department of Transportation

Norman Y. Mineta
Secretary

Michael P. Jackson
Deputy Secretary

Bureau of Transportation Statistics

Rick Kowalewski
Acting Director

William J. Chang
Associate Director for Information Systems

John V. Wells
Chief Economist

Produced under the direction of:

Wendell Fletcher
Assistant Director for Transportation Analysis

Project Manager

Kay Drucker

Editor

Marsha Fenn

Layout

Lorisa Smith

Contributors

Felix Ammah-Tagoe
David Chesser
Chester Ford
Xiaoli Han
Getachew Mekonnen
Lisa Randall
Joy Sharp
Peg Young
Jie Zhang