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SUMMARY OF PROGRESS
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1988 Completed—Published AASHO Road Test AASHTO AASHTO Guide Agency report analysis application areas Asphaltic Concrete assess associated barrier capacity Completed Completed Completed Completed—Published as NCHRP Completed—Rep Completed—Report Completion Date Concrete Bridge contract costs criteria detailed determine draft Effective Date engineers environmental Evaluation existing factors fatigue FHWA field following tasks Freeway Funds geosynthetics guidelines highway agencies Highway Bridges Highway Construction highway maintenance Hwys identify impact implementation improve Inst interim report levels load testing manual materials ment methods NCHRP project panel NCHRP Report needed objective operations Pavement Materials performance Phase practice Principal Invest problems procedures Progress Through 1988 Proj proposed publ Published as NCHRP recommended Research Agency Research in progress retroreflectivity revised Roadside roadway safety selected Steel Bridges strategies Structures submitted Summary of Progress techniques Texas tion Topic traffic control Traffic Signal Urban vehicle Welded