55, a decade of experience
Transportation Research Board, National Research Council, 1984 - Technology & Engineering - 262 pages
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THE REDUCTIONS IN SPEEDS RESULTING FROM THE 55 MPH SPEED
HIGHWAY SAFETY AND THE 55 MPH SPEED LIMIT
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55 mph speed adjustment Administration analysis and/or annually Appendix Arterial automobile average speeds cars changes citations committee compliance costs crashes days jail decline in fatalities Department of Transportation emergency medical services energy crisis estimates exceeding 55 mph fatal accidents fatality rate Federal Highway Administration fewer fatalities FHWA higher speeds highway fatalities Highway Safety Research highway systems highways posted impact improved indicate Interstate highways involved less lives saved lower mandatory-use law maximum speed limit measure ment million motor vehicle accidents mph speed limit National Highway national maximum speed NHTSA noncompliance North Carolina occurred patrol penalties percent exceeding percentage points assessed posted at 55 programs reduced speed limits relationship Report result rural highways rural Interstates safety belts safety benefits safety policies sample speed data speed variance speedometer error Statistics Table traffic trends trips truck U.S. Department urban freeways urban Interstates variable vehicle miles vehicle speeds violations