Summary of Progress - National Cooperative Highway Research Program |
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63 and FY AASHO Road Test Academy accident aggregates analysis analyzed application areas asphalt August 31 beams behavior Bridge Decks characteristics Committee Completed-Published as NCHRP Completed-Report Completion Date concrete conducted contract Cornell Cornell Aeronautical Laboratory costs criteria Deicing determine driver economic Effective Date engineers evaluation existing Factors Influencing February February 15 Federal Highway Administration final report Flexible Pavements freeway Funds guidelines highway departments highway design Highway Research Board Improved included initial research investigated June 30 laboratory lane drop load maintenance materials measure ment methods NCHRP Project NCHRP Report objectives Pavement Performance phase planning power spectrum practice predicting Principal Invest problem project report properties proposed published requirements Research Agency Research in progress research results review stage safety selected slab specific Steel studded tires Summary of Progress survey techniques tion traffic operations transportation types University urban valuation various vehicle