Speed Reduction Techniques for Rural High-to-Low Speed Transitions (2011)

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need SPine Width TRANSPORTATION RESEARCH BOARD 2010 EXECUTIVE COMMITTEE* OFFICERS Chair: Michael R. Morris, Director of Transportation, North Central Texas Council of Governments, Arlington Vice Chair: Neil J. Pedersen, Administrator, Maryland State Highway Administration, Baltimore Executive Director: Robert E. Skinner, Jr., Transportation Research Board MEMBERS J. BARRY BARKER, Executive Director, Transit Authority of River City, Louisville, KY ALLEN D. BIEHLER, Secretary, Pennsylvania DOT, Harrisburg LARRY L. BROWN, SR., Executive Director, Mississippi DOT, Jackson DEBORAH H. BUTLER, Executive Vice President, Planning, and CIO, Norfolk Southern Corporation, Norfolk, VA WILLIAM A.V. CLARK, Professor, Department of Geography, University of California, Los Angeles EUGENE A. CONTI, JR., Secretary of Transportation, North Carolina DOT, Raleigh NICHOLAS J. GARBER, Henry L. Kinnier Professor, Department of Civil Engineering, and Director, Center for Transportation Studies, University of Virginia, Charlottesville JEFFREY W. HAMIEL, Executive Director, Metropolitan Airports Commission, Minneapolis, MN PAULA J. HAMMOND, Secretary, Washington State DOT, Olympia EDWARD A. (NED) HELME, President, Center for Clean Air Policy, Washington, DC ADIB K. KANAFANI, Cahill Professor of Civil Engineering, University of California, Berkeley SUSAN MARTINOVICH, Director, Nevada DOT, Carson City DEBRA L. MILLER, Secretary, Kansas DOT, Topeka SANDRA ROSENBLOOM, Professor of Planning, University of Arizona, Tucson TRACY L. ROSSER, Vice President, Corporate Traffic, Wal-Mart Stores, Inc., Mandeville, LA STEVEN T. SCALZO, Chief Operating Officer, Marine Resources Group, Seattle, WA HENRY G. (GERRY) SCHWARTZ, JR., Chairman (retired), Jacobs/Sverdrup Civil, Inc., St. Louis, MO BEVERLY A. SCOTT, General Manager and Chief Executive Officer, Metropolitan Atlanta Rapid Transit Authority, Atlanta, GA DAVID SELTZER, Principal, Mercator Advisors LLC, Philadelphia, PA DANIEL SPERLING, Professor of Civil Engineering and Environmental Science and Policy; Director, Institute of Transportation Studies; and Interim Director, Energy Efficiency Center, University of California, Davis KIRK T. STEUDLE, Director, Michigan DOT, Lansing DOUGLAS W. STOTLAR, President and CEO, Con-Way, Inc., Ann Arbor, MI C. MICHAEL WALTON, Ernest H. Cockrell Centennial Chair in Engineering, University of Texas, Austin EX OFFICIO MEMBERS PETER H. APPEL, Administrator, Research and Innovative Technology Administration, U.S.DOT J. RANDOLPH BABBITT, Administrator, Federal Aviation Administration, U.S.DOT REBECCA M. BREWSTER, President and COO, American Transportation Research Institute, Smyrna, GA GEORGE BUGLIARELLO, President Emeritus and University Professor, Polytechnic Institute of New York University, Brooklyn; Foreign Secretary, National Academy of Engineering, Washington, DC ANNE S. FERRO, Administrator, Federal Motor Carrier Safety Administration, U.S.DOT LEROY GISHI, Chief, Division of Transportation, Bureau of Indian Affairs, U.S. Department of the Interior, Washington, DC EDWARD R. HAMBERGER, President and CEO, Association of American Railroads, Washington, DC JOHN C. HORSLEY, Executive Director, American Association of State Highway and Transportation Officials, Washington, DC DAVID T. MATSUDA, Deputy Administrator, Maritime Administration, U.S.DOT VICTOR M. MENDEZ, Administrator, Federal Highway Administration, U.S.DOT WILLIAM W. MILLAR, President, American Public Transportation Association, Washington, DC TARA O’TOOLE, Under Secretary for Science and Technology, U.S. Department of Homeland Security, Washington, DC ROBERT J. PAPP (Adm., U.S. Coast Guard), Commandant, U.S. Coast Guard, U.S. Department of Homeland Security, Washington, DC CYNTHIA L. QUARTERMAN, Administrator, Pipeline and Hazardous Materials Safety Administration, U.S.DOT PETER M. ROGOFF, Administrator, Federal Transit Administration, U.S.DOT DAVID L. STRICKLAND, Administrator, National Highway Traffic Safety Administration, U.S.DOT JOSEPH C. SZABO, Administrator, Federal Railroad Administration, U.S.DOT POLLY TROTTENBERG, Assistant Secretary for Transportation Policy, U.S.DOT ROBERT L. VAN ANTWERP (Lt. Gen., U.S. Army), Chief of Engineers and Commanding General, U.S. Army Corps of Engineers, Washington, DC *Membership as of October 2010.

92+ pages; Perfect Bind with SPine COPY = 14 pts Speed Reduction Techniques for Rural High-to-Low Speed Transitions NATIONAL COOPERATIVE HIGHWAY RESEARCH PROGRAM NCHRP SYNTHESIS 412 N CH R P SyN tH eSiS 412 Speed Reduction techniques for Rural High-to-Low Speed transitions need SPine Width Job no. XXXX Pantone 202 C tRANSPORtAtiON ReSeARCH BOARD 500 F ifth S treet, n .W . W ashing to n, d .C . 20001 A D D R eSS SeR ViCe R eQ UeSteD tRB A Synthesis of Highway Practice Sponsored by the Federal Highway Administration