Acknowledgements

U.S. Department of Transportation

Norman Y. Mineta
Secretary

Michael P. Jackson
Deputy Secretary

Bureau of Transportation Statistics

Ashish K. Sen
Director

Richard R. Kowalewski
Deputy Director

Susan J. Lapham
Associate Director for Statistical Programs and Services

Our mission is to lead in developing transportation data and information of high quality and to advance their effective use in both public and private transportation decisionmaking.

Our vision for the future: Data and information of high quality will support every significant transportation policy decision, thus advancing the quality of life and the economic well-being of all Americans.

The Journal of Transportation and Statistics is published by the
Bureau of Transportation Statistics
U.S. Department of Transportation
Room 3430
400 7th Street SW
Washington, DC 20590
USA
journal@bts.gov

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Cover and text design   Susan JZ Hoffmeyer
Layout   Gardner Smith of OmniDigital
Cover photo   Image^© copyright 2001 PhotoDisc, Inc.

The Secretary of Transportation has determined that the publication of this periodical is necessary in the transaction of the public business required by law of this Department.