00000cam a22000004a 4500 UP-99796217609808594 Buklod 20110509145650.0 m |q d | ta 070124s2006 dcua rb |000 0|eng d 030909982X 0361-1981 (iLib)UPD-00172802161 OSU OSU CBT,NCTS LIBRARY TA1001.5 T7 no. 1973 Traffic control devices, visibility, and rail-highway grade crossings, 2006. Washington, D.C. Transportation Research Board c2006. vii, 155 p. ill. 28 cm. Transportation research record 0361-1981 no. 1973. "A peer-reviewed publication." "Many of these papers were presented at the TRB 85th Annual Meeting in January 2006"--P. vii. Includes bibliographical references. Traffic signs and signals Congresses. Electronic traffic controls Congresses. Roads Visibility Congresses. Highway-railroad grade crossings Safety measures Congresses. Railroad crossings Safety measures Congresses. Traffic safety Congresses. National Research Council (U.S.). Transportation Research Board. National Research Council (U.S.). Transportation Research Board. Meeting (85th 2006 Washington, D.C.). Transportation research record 1973. UPD NCTS TA1001.5 T7 no. 1973 Book