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TRANSPORTATION RESEARCH BOARD 5 0 0 F ifth S tre e t, N W W a s h in g to n , D C 2 0 0 0 1 A D D R ESS SER VICE R EQ UESTED N on-profit O rg. U .S .P o stage PA ID W a shington, DC P e rm it N o .8970 Convertible Roadways and Lanes A Synthesis of Highway Practice NATIONAL COOPERATIVE HIGHWAY RESEARCH PROGRAMNCHRP SYNTHESIS 340 N CH R P Synthesis 340 Convertible Roadw ays and Lanes TRB 62266_TRB_Cv 1/6/05 6:15 AM Page 1
