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NCHRP COMMITTEE FOR PROJECT 20-5 CHAIR CATHERINE NELSON, Oregon DOT MEMBERS KATHLEEN S. AMES, Illinois DOT STUART D. ANDERSON, Texas A&M University CYNTHIA J. BURBANK, PB Americas, Inc. LISA FREESE, Scoot County (MN) Public Works Division MALCOLM T. KERLEY, Virginia DOT RICHARD D. LAND, California DOT JAMES W. MARCH, Federal Highway Administration MARK A. MAREK, Texas DOT JOHN M. MASON, JR., Auburn University ANANTH PRASAD, HNTB Corporation ROBERT L. SACK, New York State DOT FRANCINE SHAW-WHITSON, Federal Highway Administration LARRY VELASQUEZ, New Mexico DOT FHWA LIAISON WILLIAM ZACCAGNINO TRB LIAISON STEPHEN F. MAHER Cover Figure: Family of three deer on overpass (credit: Patricia Cramer). COOPERATIVE RESEARCH PROGRAMS STAFF CHRISTOPHER W. JENKS, Director, Cooperative Research Programs CRAWFORD F. JENCKS, Deputy Director, Cooperative Research Programs NANDA SRINIVASAN, Senior Program Officer EILEEN DELANEY, Director of Publications NCHRP SYNTHESIS STAFF STEPHEN R. GODWIN, Director for Studies and Special Programs JON M. WILLIAMS, Program Director, IDEA and Synthesis Studies GAIL STABA, Senior Program Officer DONNA L. VLASAK, Senior Program Officer DON TIPPMAN, Editor CHERYL KEITH, Senior Program Assistant TOPIC PANEL ROB AMENT, Montana State University DONNA BUSCEMI, Maryland State Highway Administration CHRISTINE GERENCHER, Transportation Research Board HAROLD G. HUNT, California Department of Transportation MARK S. KROSS, Jefferson City, MO DEBRA NELSON, New York State Department of Transportation RON REGAN, Association of Fish and Wildlife Agencies VICKI SHARPE, Florida Department of Transportation BRUCE STEIN, National Wildlife Federation PAUL WAGNER, Washington State Department of Transportation STEVE EARSOM, Federal Highway Administration (Liaison)
