00340nam a22001097a 4500082002000000245005800020260003700078300002900115526003700144526003700181650001200218  a388.312bPAIcD  aEvaluation of traffic controls for highway work zones  aWashingtonbThe wrold bankc1981  a187 p. :bill, ;c24 cm.  a0b0c0d388_312000000000000_PAI  a0b0c0d388_312000000000000_PAI  aMCE (D)