01975nam 2200457Ia 450 991070143310332120120531155027.0(CKB)5470000002418749(OCoLC)794567725(EXLCZ)99547000000241874920120531d2007 ua 0engurbn|||||||||txtrdacontentcrdamediacrrdacarrierEvaluation of the School Street four-quadrant gate/in-cab signaling grade crossing system[electronic resource] safety of highway railroad grade crossings /[Adrian D. Hellman, Anya A. Carroll and Debra M. Chappell]Washington, D.C. :U.S. Dept. of Transportation, Federal Railroad Administration, Office of Research and Development,[2007]1 online resource (vi, 47 pages) illustrationsTitle from title screen (viewed on May 31, 2012)."March 2007.""DOT/FRA/ORD-07-09.""DOT-VNTSC-FRA-03-04"--Rept. documentation p.Includes bibliographical references (pages 37-39).Evaluation of the School Street four-quadrant gate/in-cab signaling grade crossing system Highway-railroad grade crossingsConnecticutGrotonSafety measuresRailroad crossingsConnecticutGrotonSafety measuresTraffic signs and signalsConnecticutGrotonHighway-railroad grade crossingsSafety measures.Railroad crossingsSafety measures.Traffic signs and signalsHellman Adrian D1407281Carroll Anya A1389743Chappell Debra M1412788United States.Federal Railroad Administration.GPOGPOBOOK9910701433103321Evaluation of the School Street four-quadrant gate3507405UNINA