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The National Maximum Speed Limit (NMSL) was a provision of the federal government of the United States 1974 Emergency Highway Energy Conservation Act that effectively prohibited speed limits higher than 55 miles per hour (89 km/h). It was drafted in response to oil price spikes and supply disruptions during the 1973 oil crisis and remained the law until 1995. While federal officials hoped gasoline consumption would fall by 2.2%, the actual savings were estimated at between 0.5% and 1%. The law's safety benefit is disputed as research found conflicting results.

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  • La Ley Nacional de Velocidad Máxima (NMSL por sus siglas en inglés) fue una disposición del Gobierno federal de los Estados Unidos para la "Ley de Conservación de Energía en Carreteras de Emergencia de 1974 (1974 Emergency Highway Energy Conservation Act)" que prohibía límites de velocidad superiores a 55 millas por hora (88,5 km/h). Fue redactado en respuesta a los picos del precio del petróleo y las interrupciones del suministro durante la crisis del petróleo de 1973 y siguió siendo la ley hasta 1995. Si bien los funcionarios federales esperaban que el cayera un 2,2%, los ahorros reales se estimaron entre el 0,5% y el 1%. La ley fue ampliamente ignorada por los automovilistas en todo el país, y algunos estados se opusieron a la ley​​ pero muchas jurisdicciones descubrieron que era una fuente importante de ingresos. Las acciones iban desde proponer acuerdos para una exención hasta restar importancia a la . La NMSL se modificó en 1987 y 1988 para permitir hasta 65 mph (104,6 km/h) en ciertos caminos rurales de acceso limitado. El Congreso derogó la NMSL en 1995, devolviendo completamente la autoridad para establecer límites de velocidad a los estados individuales. El beneficio de seguridad de la ley se disputa ya que la investigación encontró resultados contradictorios. (es)
  • The National Maximum Speed Limit (NMSL) was a provision of the federal government of the United States 1974 Emergency Highway Energy Conservation Act that effectively prohibited speed limits higher than 55 miles per hour (89 km/h). It was drafted in response to oil price spikes and supply disruptions during the 1973 oil crisis and remained the law until 1995. While federal officials hoped gasoline consumption would fall by 2.2%, the actual savings were estimated at between 0.5% and 1%. The law was widely disregarded by motorists nationwide, and some states opposed the law, but many jurisdictions discovered it to be a major source of revenue. Actions ranged from proposing deals for an exemption to de-emphasizing speed limit enforcement. The NMSL was modified in 1987 and 1988 to allow up to 65 mph (105 km/h) limits on certain limited-access rural roads. Congress repealed the NMSL in 1995, fully returning speed limit-setting authority to the individual states. The law's safety benefit is disputed as research found conflicting results. The power to set speed limits historically belonged to the states. Prior to the NMSL, the sole exception to this occurred during World War II, when the U.S. Office of Defense Transportation established a national maximum "Victory Speed Limit" of 35 miles per hour (56 km/h), in addition to gasoline and tire rationing, to help conserve fuel and rubber for the American war effort. Although it was widely disregarded by many motorists, the Victory Speed Limit lasted from May 1942 to August 14, 1945, when the war ended. Immediately before the NMSL became effective, speed limits were as high as 75 mph (121 km/h). (Kansas had lowered its turnpike speed limit from 80 mph (130 km/h) before 1974.) Montana and Nevada generally posted no speed limits on highways, limiting drivers to only whatever was safe for conditions. (en)
  • 国家最高限速(英語:National Maximum Speed Law, NMSL)是美國聯邦政府於1974年制定的紧急公路节能法(1974 Emergency Highway Energy Conservation Act)中的一项规定,該規定將美國的車輛最高速度限制在每小时89公里。美國聯邦政府這樣做的目的是为了应对第一次石油危机期间的油价飙升和汽油供应緊張,不過美國全國范围内許多駕駛員並沒有遵守该規定,一些州甚至反对该規定。1987年和1988年,美國聯邦政府对NMSL进行修改,允许在某些农村道路上的最大車速限制提升至每小時105公里。1995年,美國國會废除了NMSL,並将車速限制的制定权交由美國各州自主決定。 歷史上車速限制的制定權掌握在各州手上。在NMSL之前,唯一的例外是在第二次世界大战期间,当时美国国防运输办公室出於戰爭需要,规定美國全国最高車速限制設定在每小时56英里,以节省汽油和橡胶的消耗。全國臨時性最高車速限制从1942年5月一直持续到1945年8月14日二戰结束。 (zh)
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  • 国家最高限速(英語:National Maximum Speed Law, NMSL)是美國聯邦政府於1974年制定的紧急公路节能法(1974 Emergency Highway Energy Conservation Act)中的一项规定,該規定將美國的車輛最高速度限制在每小时89公里。美國聯邦政府這樣做的目的是为了应对第一次石油危机期间的油价飙升和汽油供应緊張,不過美國全國范围内許多駕駛員並沒有遵守该規定,一些州甚至反对该規定。1987年和1988年,美國聯邦政府对NMSL进行修改,允许在某些农村道路上的最大車速限制提升至每小時105公里。1995年,美國國會废除了NMSL,並将車速限制的制定权交由美國各州自主決定。 歷史上車速限制的制定權掌握在各州手上。在NMSL之前,唯一的例外是在第二次世界大战期间,当时美国国防运输办公室出於戰爭需要,规定美國全国最高車速限制設定在每小时56英里,以节省汽油和橡胶的消耗。全國臨時性最高車速限制从1942年5月一直持续到1945年8月14日二戰结束。 (zh)
  • La Ley Nacional de Velocidad Máxima (NMSL por sus siglas en inglés) fue una disposición del Gobierno federal de los Estados Unidos para la "Ley de Conservación de Energía en Carreteras de Emergencia de 1974 (1974 Emergency Highway Energy Conservation Act)" que prohibía límites de velocidad superiores a 55 millas por hora (88,5 km/h). Fue redactado en respuesta a los picos del precio del petróleo y las interrupciones del suministro durante la crisis del petróleo de 1973 y siguió siendo la ley hasta 1995. (es)
  • The National Maximum Speed Limit (NMSL) was a provision of the federal government of the United States 1974 Emergency Highway Energy Conservation Act that effectively prohibited speed limits higher than 55 miles per hour (89 km/h). It was drafted in response to oil price spikes and supply disruptions during the 1973 oil crisis and remained the law until 1995. While federal officials hoped gasoline consumption would fall by 2.2%, the actual savings were estimated at between 0.5% and 1%. The law's safety benefit is disputed as research found conflicting results. (en)
rdfs:label
  • Ley Nacional de velocidad máxima (Estados Unidos) (es)
  • National Maximum Speed Law (en)
  • 國家最高限速 (zh)
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