Transportation Research Abstracts, Volume 26National Research Council, Transportation Research Board., 1956 - Transportation |
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ACADEMY accidents aggregate American Automobile Association annual application asphalt asphaltic concrete Asst Automobile Automotive average base beam bituminous bridge Bureau of Public California cars cities clay compaction concrete construction cost density determine developed Dist drainage basin drainage maps driver effect Engr equipment estimates Expressway factors field grade Highway Department highway needs Highway Research Abstracts Highway Research Board increase indicated investigation Iowa State College Joint laboratory LIBRARIES STANFORD load Maint maintenance material maximum measured method miles National obtained operation paper parking pavement percent piles pipe planning plastic Portland Cement pressure prestressed problems provision accounts Public Roads Purdue University quick clay ratio RESEARCH COUNCIL Safety samples sand slab soil speed Stabilization STANFORD UNIVERSITY steel Street strength structures subgrade surface temperature tests tion traffic Traffic Engineering transportation trucks vibration Washington water-cement ratio weld Yes Yes Yes