Acknowledgments

U.S. Department of Transportation

Ray LaHood
Secretary

Research and Innovative Technology Administration

Peter H. Appel
Administrator

Robert L. Bertini, Ph.D.
Deputy Administrator

Bureau of Transportation Statistics

Steven K. Smith, Ph.D.
Acting Director

Produced under the direction of:

Deborah D. Johnson
Assistant Director

Project Manager

Long X. Nguyen

Major Contributors

E-Ternational

Felix Ammah-Tagoe, Ph.D.
Shana Johnson
Stephen Pelletier

Other Contributors

Matt Chambers
Jacob Hommeland
Gail Perkins, MARAD

RITA Editor

William H. Moore

RITA Visual Information Specialist

Alpha Wingfield

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