Table 1,,,,,,,, Fatal Crashes by Speed Limits and Type of Road: 1999,,,,,,,, ,Rural,Urban,,,,,, Speed,,Principal,,,Principal,,, limit,Interstate,arterial,Other,Interstate,arterial,Other,Unknown,Total 30 mph or less,2,61,987,11,28,"2,802",94,"3,985" 35 or 40 mph,15,181,"1,899",39,114,"4,383",129,"6,760" 45 or 50 mph,35,612,"3,085",121,208,"3,046",187,"7,294" 55 mph,186,"2,510","8,629",684,368,"1,308",229,"13,914" 60 mph or higher,"2,971","1,846","1,535","1,430",580,197,14,"8,573" No posted limit,5,14,89,1,0,16,9,134 Unknown,22,56,368,61,56,362,26,951   Total,"3,236","5,280","16,592","2,347","1,354","12,114",688,"41,611" "SOURCE: U.S. Department of Transportation, National Highway Traffic Safety Administration, Fatality Analysis Reporting System database, 2000.",,,,,,,,