U.S. Department of
Transportation

Anthony Foxx
Secretary of Transportation

Victor Mendez
Deputy Secretary of Transportation

Gregory Winfree
Assistant Secretary for
Research and Technology

Bureau of Transportation
Statistics

Patricia Hu
Director

Rolf Schmitt
Deputy Director

Produced under the direction of:
Michael J. Sprung
Director, Office of Transportation Analysis

Project Manager
Mindy Liu

Major Contributors
Matthew Chambers
Justyna Goworowska
Sonya Smith

Other Contributors
Steven Beningo
James Bouse
Charles Campbell
William Chadwick, Jr.
Theresa Firestine
Jeff Gorham
Ivy Harrison
Dominic Menegus
Niranjan Miryala
Long Nguyen
Kenneth Notis
Cecelia Robinson
Jennifer Rodes
Marianne Seguin
Joy Sharp
David Smallen
Suresh Subramani
Connie Tang
Karen White

Editor
William H. Moore

Visual Information Specialist
Alpha Wingfield