Speed Limit 55: Is It Achievable?
CED-77-27
Published: Feb 14, 1977. Publicly Released: Feb 14, 1977.
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Highlights
The national 55 mile per hour (mph) speed limit law was enacted as a fuel conservation measure after the 1973 Arab oil embargo, and secondarily, to improve highway safety. Its effectiveness was evaluated from Department of Transportation (DOT) information, meetings with law enforcement and highway officials in five states, and discussions with regional safety administration offices.
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