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Federal Highway Administration and Federal Transit Administration
9300 Lee Highway
Fairfax, VA 22031
With support from Delcan, Inc.
June 23, 2010
Quality Assurance Statement
The Federal Highway Administration (FHWA) provides high-quality information to serve Government, industry, and the public in a manner that promotes public understanding. Standards and policies are used to ensure and maximize the quality, objectivity, utility, and integrity of its information. FHWA periodically reviews quality issues and adjusts its programs and processes to ensure continuous quality improvement.
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This document was developed with input from many individuals from State departments of transportation (DOTs) across the country, and active participation and support from the American Association of State Highway and Transportation Officials (AASHTO). FHWA and FTA would specifically like to thank the following individuals for their contributions that helped to shape this reference manual:
Al Arana, California DOT
Elizabeth Birriel, Florida DOT
Katherine Boyd, Washington State DOT
Mark Bush, AASHTO
Mary Deitz, Maryland State Highway Administration
Michael Floberg, Kansas DOT
Barbara Fraser, Oregon DOT
Douglas Frate, South Carolina DOT
Susan Gorski, Michigan DOT
John Leonard, Utah DOT
Mena Lockwood, Virginia DOT
Amy Tang McElwain, Virginia DOT, Northern Region Operations
Michelle Maggiore, AASHTO
Michelle May, Ohio DOT
Lori Morel, Texas DOT
Eileen Ogan, Pennsylvania DOT
Pat Ott, New Jersey DOT
Peggy Reichert, Minnesota DOT
Elizabeth Robbins, Washington State DOT
Jeff Roecker, Pennsylvania DOT
John Quatman, Pennsylvania DOT
Brian Smith, Washington State DOT
David Wasserman, North Carolina DOT
Pippa Woods, New Jersey Transit