01568oas 2200493 450 991070791020332120180809155023.0(CKB)5470000002469471(OCoLC)1030897660(EXLCZ)99547000000246947120180409a20129999 ua engur|||||||||||txtrdacontentcrdamediacrrdacarrierEAR Program research results[Washington, D.C.] :U.S. Department of Transportation, Federal Highway Administration1 online resource (volumes) color illustrations"FHWA-HRT.""HRTM-30/...(M)E."Exploratory Advanced Research Program research resultsEAR Program research results updated through ...Highway engineeringResearchUnited StatesPeriodicalsTraffic safetyResearchPeriodicalsHighway engineeringResearchfastTraffic safetyResearchfastUnited StatesfastPeriodicals.fastOnline resources.Highway engineeringResearchTraffic safetyResearchHighway engineeringResearch.Traffic safetyResearch.GPOGPOGPOMERUCOCLGPOJOURNAL9910707910203321EAR Program research results3292201UNINA