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"Double nickel" redirects here. For the Interstate Highway in the central United States nicknamed "double nickel", see Interstate 55.

55 miles per hour (89 km/h) speed limit sign being erected in response to the National Maximum Speed Limit.

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). The limit was increased to 65 miles per hour (105 km/h) in 1987. It was drafted in response to oil price spikes and supply disruptions during the 1973 oil crisis. Even after fuel costs began to decrease over time the law would remain in place until 1995 as proponents claimed it reduced traffic fatalities.[1][2]

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,[3][4] 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 Congress repealed the NMSL in 1995, fully returning speed limit-setting authority to the individual states.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.[5][6] Immediately before the NMSL became effective, speed limits were as high as 75 mph (121 km/h).[7] (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.

1973—55 mph National Speed Limit[edit]

A sign next to a highway says "Speed Limit 50". A newspaper in the foreground has an article about the new speed limit.
In 1973, Congress enacted a national speed limit of 55 mph (89 km/h). Some states, such as Washington, enacted lower speed limits.

As of November 20, 1973, several states had modified speed limits:[8]

  • 50 mph (80 km/h): Rhode Island, Maryland, Massachusetts, New Jersey, New York, Vermont, and Washington
  • 55 mph (89 km/h): North Carolina and Oregon
  • California lowered some 70 mph (110 km/h) limits to 65 mph (105 km/h).
  • In late November 1973, Texas Governor Dolph Briscoe recommended adoption of a 55 mph (89 km/h) statewide limit.[9] On December 4, the Texas Highway Commission, with a 3–0 vote, adopted this 55 mph (89 km/h) speed limit, citing unsafe speed differentials between the flow of traffic and people driving too slowly to comply with Nixon's and Briscoe's requests for voluntary slowdowns. The legality of the measure was questioned, and two Texas legislators threatened to sue to block the limit.[10] By December 6, Texas Attorney General John Hill ruled that the speed reduction "'was in excess' of the commissioners' legal power," citing that a 1943 Texas Attorney General's opinion held that the legislature holds the power to set the statewide speed limit and the commission's authority was limited to changing it in specific locales where safety factors required lower limits.[11]

As an emergency response to the 1973 oil crisis, on November 26, 1973, President Richard Nixon proposed a national 50 mph (80 km/h) speed limit for passenger vehicles and a 55 mph (90 km/h) speed limit for trucks and buses. Also proposed were a ban on ornamental lighting, no gasoline sales on Sunday, and a 15% cut in gasoline production to reduce total gas consumption by 200,000 barrels a day, representing a 2.2% drop from annualized 1973 gasoline consumption levels.[12][a] Nixon partly based that on a belief that cars achieve maximum efficiency between 40 and 50 mph (64 and 80 km/h) and that trucks and buses were most efficient at 55 mph (89 km/h).[14]

The California Trucking Association, the largest trucking association in the United States, opposed differential speed limits on grounds that they are "not wise from a safety standpoint."[15]

Enactment[edit]

The Emergency Highway Energy Conservation Act[16] was a bill in the U.S. Congress that included the National Maximum Speed Limit.[17] States had to agree to the limit if they desired to receive federal funding for highway repair. The uniform speed limit was signed into law by Nixon on January 2, 1974, and became effective 60 days later,[18] by requiring the limit as a condition of each state receiving highway funds, a use of the Commerce Clause of the United States Constitution.[19]

The legislation required 55 mph (89 km/h) speed limits on all four-lane divided highways unless the road had a lower limit before November 1, 1973. In some cases, like the New York State Thruway, the 50 mph (80 km/h) speed limit had to be raised to comply with the law. The law capped speed limits at 55 mph (89 km/h) on all other roads.[18]

A survey by the Associated Press found that, as of Wednesday, January 2, 1974:[18]

  • 12 states already had maximum speed limits of 55 mph (89 km/h).
  • 9 states had maximum speed limits of 50 mph (80 km/h).
  • 29 states had to lower limits.

That includes some states that voluntarily lowered their limits in advance of the federal requirement.

On May 12, 1974, the United States Senate defeated a proposal by Senator Bob Dole to raise the speed limit to 60 mph (97 km/h).[20]

The 55 mph (90 km/h) National Maximum Speed Limit was made permanent when Congress enacted and President Gerald Ford signed into law the Federal-Aid Highway Amendments of 1974 on January 4, 1975.[21]

Safety impact[edit]

The limit's effect on highway safety is unclear. Both during the time the law was enacted and after it was repealed, automobile fatalities decreased,[22] which was widely attributed mainly to automobile safety improvements, owing to an increase in the safety of cars themselves, and the passage of mandatory seat belt legislation by all states except New Hampshire from the mid-1980s to the early 1990s.[23][24] This decrease in fatalities from automobile accidents makes figuring out the actual impact of the law difficult. Although the vast majority of states reported fewer traffic deaths in 1974 compared with 1973, there were in fact three states where traffic deaths actually increased in 1974, 1975 and 1976, compared to 1973, notwithstanding the 55 mph (90 km/h) speed limit: Alaska, New Hampshire and Wyoming. [25]

According to the National Research Council, there was a decrease in fatalities of about 3,000 to 5,000 lives in 1974, and about 2,000 to 4,000 lives saved annually thereafter through 1983 because of slower and more uniform traffic speeds since the law took effect.[26] Later, the National Academies wrote that there is "a strong link between vehicle speed and crash severity [which] supports the need for setting maximum limits on high-speed roads" but that "the available data do not provide an adequate basis for precisely quantifying the effects that changes in speed limits have on driving speeds, safety, and travel time on different kinds of roads." The Academies report also observed that on rural interstates, the free-flowing traffic speed should be the major determinant of the speed limit: "Drivers typically can anticipate appropriate driving speeds." This is due, in part, to the strong access control in these areas but also is an acknowledgement of the difficulty of enforcing the 55 mph (90 km/h) speed limit in these areas.[27]

A Cato Institute report showed that the safety record worsened in the first few months of the new speed limits, suggesting that the fatality drop found by the NRC was a statistical anomaly that regressed to the mean by 1978.[28] After the oil crisis abated, the NMSL was retained mainly due to the possible safety aspect.[29]

Insurance Institute for Highway Safety analysts wrote three papers that argue that increase from 55 to 65 mph (89 to 105 km/h) on rural roads led to a 25% to 30% increase in deaths (1/3 from increased travel, 2/3 from increased speed)[30] while the full repeal in 1995 led to a further 15% increase in fatalities.[30] In contrast, researchers at University of California Transportation Science Center argue that the interstates in question are only part of the equation, one also must account for traffic moving off the relatively more dangerous country roads and onto the relatively safer interstates. Accounting for this they find that raising rural speed limits to 65 mph (105 km/h) caused a 3.4% to 5.1% decrease in fatalities.[31]

Fuel savings[edit]

In 1998, the Transportation Research Board footnoted an estimate that the NMSL reduced fuel consumption by 0.2 to 1.0 percent.[32] Rural interstates, the roads most visibly affected by the NMSL, accounted for 10% of the U.S.'s vehicle-miles-traveled in 1973,[33] and although dropping speeds from 75 to 55 mph (120 to 90 km/h) reduces air resistance by over half, such free-flowing roads typically provide more fuel-efficient travel than conventional roads.[34][35][36]

Opposition and noncompliance[edit]

Despite federal compliance standards mandated by Congress that no more than 50 percent of free-flowing traffic on 55 mph-posted highways exceed 55 mph from 1981 onwards, which required up to a 10 percent reduction in federal highway funding for states in noncompliance,[37] by the 1980s traffic surveys showed the NMSL was widely violated:

  • The speed limit had very low compliance, contrary to the commonly accepted engineering practice that says that the speed limit should criminalize only the fastest 15% of drivers:
    • From April to June 1982, speed was monitored on New York's Interstate highways, and an 83% noncompliance rate was found despite extreme penalties ranging from $100 (1982 dollars, equal to $316 today) or 30 days jail on a first offense to $500 (1982 dollars, equal to $1,579 today), up to 180 days in jail, and a six-month driver's license revocation upon third conviction in 18 months.[38]
    • In the fourth quarter of 1988, 85% of drivers violated the 55 mph (89 km/h) speed limits on Connecticut rural interstates.[39]
    • In 1985, the Texas's State Department of Highways and Public Transportation surveyed motorist speeds at 101 locations on six types of urban and rural roads. It found that 82.2% of motorists violated the speed limit on rural interstates, 67.2% violated speed limits on urban interstates, and 61.6% violated speed limits on all roads.[40][41]
  • Western states began to reduce fines in the 1980s, effectively minimizing the impact of the 55 mph (90 km/h) limit:
    • Arizona, Idaho, Montana, and Nevada replaced traditional speeding fines with $5–$15 energy wasting fines as long as drivers did not exceed the speed limit in effect before the 55 mph (90 km/h) federal requirement.[38]
      • Nevada's energy wasting fine was enacted on April 15, 1981, when signed by Governor Robert List. Motorists not exceeding 70 mph (110 km/h) in 55 mph (89 km/h) zones could be issued $5 "energy wasting" fines. However, standard speeding tickets were still allowed and "troopers were directed not to take the new law as a signal to stop writing tickets."[42]
    • In 1986, North Dakota's fine for speeding up to 15 mph (24 km/h) over the limit was only $15 and had no license points.[43]
    • South Dakota cut speeding fines in 1985 and stopped assessing points for being 10 mph (16 km/h) or less above the speed limit in 1986.[43]
    • On August 1, 1986, Minnesota, which normally suspended licenses after three tickets, stopped counting speeding tickets for no more than 65 mph (105 km/h).[43]
  • The 1980 Republican Party platform called for the repeal of the 55 mph National Maximum Speed Limit. In its section on Rural Transportation, it stated: "We believe the federal 55 miles per hour speed limit is counterproductive, and contributes to the high costs of goods and services to all communities, particularly in rural America. The most effective, no-cost federal assistance program available would be for each state to set its own speed limit."[44]
  • In 1981, 33 state legislatures debated measures to oppose the NMSL.[38]
  • In 1985, the U.S. Department of Transportation found the states of Arizona, Maryland (designated a "Strict Enforcement Area" by the American Automobile Association),[45] and Vermont were out of compliance with the 55 mph (90 km/h) national speed limit, according to speed monitoring data collected and submitted by these states, showing that over 50 percent of their highway traffic exceeded 55 mph (90 km/h) in Fiscal Year 1984; the House Public Works and Transportation Subcommittee on Surface Transportation held hearings on July 23, 1985, to discuss proposals to revise the federal compliance requirements for 55 mph (90 km/h) on the basis of recommendations made by the National Research Council, to help these and other states come into compliance and avoid sanctions.[46]
  • Some law enforcement officials openly questioned the speed limit. In 1986, Jerry Baum, director of the South Dakota Highway Patrol, said "Why must I have a trooper stationed on an interstate, at 10 in the morning, worried about a guy driving 60 mph (100 km/h) on a system designed to be traveled at 70? He could be out on a Friday night watching for drunken drivers."[43][47]
  • Even organizations supporting the NMSL, such as the American Automobile Association (AAA) provided lists of locations where the limit was strictly enforced.[38]
  • On June 1, 1986, Nevada challenged the NMSL by posting a 70 mph (110 km/h) limit on 3 miles (5 km) of Interstate 80. The Nevada statute authorizing that speed limit included language that invalidated itself if the federal government suspended transportation funding. As it happened, the Federal Highway Administration immediately withheld highway funding, which automatically invalidated the statute by its own terms.[19]
  • Finally, on September 24, 1986, the U.S. Senate voted in favor of an amendment to pending federal highway legislation, introduced by Senator Steve Symms (R-ID) and supported by President Ronald Reagan, to allow states to increase speed limits on rural Interstate highways to 65 mph.[48] Both the amendment and the highway bill died in a House-Senate conference committee before Congress adjourned for that year.

1987 to 1995 — rural 65 mph (105 km/h) to total repeal[edit]

In the April 2, 1987, Surface Transportation and Uniform Relocation Assistance Act, Congress permitted states to raise speed limits to 65 mph (105 km/h) on rural Interstate highways.[49] In a bill that passed in mid-December 1987, Congress allowed certain non-Interstate rural roads built to Interstate standards to have the higher speed limits. As of December 29, 1987, the states of California, Florida, Illinois, Iowa, Kansas, Kentucky, and Oklahoma had applied for and been accepted into this program. The program was originally slated to last four years.[50] A total of 40 states raised their speed limits to 65 mph on rural Interstate highway and non-Interstate rural roads built to Interstate standards by 1988, joined by Massachusetts (Turnpike only) in 1992, and by Maryland, New York and Pennsylvania in the summer of 1995.

The higher speed limit on most rural Interstates and similar non-Interstate roads was vehemently opposed by highway safety advocates, including the National Safety Council, Public Citizen, Mothers Against Drunk Driving, American Trucking Associations, and the Insurance Institute for Highway Safety, all ardent, long-time supporters of 55 mph (90 km/h).[51][52][53] On the other hand, the new 65 mph speed limit for rural Interstates was welcomed by the California Highway Patrol, National Motorists Association (née Citizens' Coalition for Rational Traffic Laws), a motorists' advocacy group, American Motorcyclist Association, Owner-Operator Independent Drivers Association (OOIDA), the automotive enthusiast magazines Motor Trend, Road & Track, Car and Driver, and the late automotive journalist Brock Yates (1934–2016)--perhaps the most outspoken published opponent of the 55 mph National Maximum Speed Limit.[54]

Under the Intermodal Surface Transportation Efficiency Act of 1991,[55] passed by Congress and signed by President George H. W. Bush on December 18, 1991, the 65 mph speed limit was made permanent for rural non-Interstate highways built to Interstate standards. It also declared a moratorium on Federal sanctions against states in noncompliance with the 55 mph (90 km/h) national speed limit for fiscal years 1990 and 1991, and directed the U.S. Department of Transportation to promulgate new compliance standards for the 65 mph rural freeways, as well as for all 55 mph (90 km/h) highways. As required by ISTEA, they were published in the Code of Federal Regulations 23 CFR Part 1260, but no further action was taken by USDOT against the states for speed limit noncompliance for the last few years the NMSL was still in effect until it was repealed in 1995.

Reclassified roads[edit]

A few roads that were not Interstate Highways but had been built to Interstate standards were redesignated as Interstate Highways to qualify for the increased speed limit:

  • Kansas petitioned the Federal Highway Administration on May 14, 1987, to "designate the turnpike as an Interstate Highway between Topeka and Emporia." This Kansas Turnpike segment had existed since 1956 without a numerical designation. Interstate status was granted, Interstate 335 was designated, and the 65 mph speed limit signs went up.[56]
  • Interstate 88 in Illinois had previously been designated as Illinois Route 5.
  • 50 miles (80 km) of the Maine Turnpike between Portland and West Gardiner were designated as Interstate 495 in 1988. The designation for this segment was changed in 2004 to Interstate 95 to simplify the Interstate numbering scheme in Maine.[57]

1995 repeal[edit]

Congress lifted all federal speed limit controls in the National Highway System Designation Act of 1995, returning all speed limit determination authority to the states effective December 8, 1995. Several states immediately reverted to already existing laws. For example, most Texas rural limits that were above 55 mph (89 km/h) in 1974 immediately reverted to 70 mph (112 km/h), causing some legal confusion before the new signs were posted. Montana reverted to non-numerical speed limits on most rural highways, but its legislature adopted 75 mph (121 km/h) as a limit in 1999; as a result, according to Insurance Institute for Highway Safety researcher Anne McCartt, "What's impressive is the huge drop in the percent of vehicles going very fast.... The proportion of vehicles exceeding 75 mph (120 km/h), the limit set [by Montana] in 1999, tumbled 45 percent. The proportion surpassing 80 mph plummeted 85 percent. Large trucks slowed, too." (She did not mention that the IIHS survey of traffic speeds on Interstate highways in 2006 she referred to, found Montana, as compared with New Mexico and Nevada, had the highest compliance with the 75 mph (120 km/h) speed limit on rural interstates: 76 percent.)[58] Hawaii was the last state to raise its speed limit when, in response to public outcry after an experiment with traffic enforcement cameras in 2002, it raised the maximum speed limit on parts of Interstates H-1 and H-3 to 60 mph (97 km/h).[59]

Despite the repeal of federal speed limit controls, the 2011 maximum speed limits were on average lower than those of 1974:[60]

  • States with same speed limit as pre-1974: 25[b]
  • States with higher speed limit than pre-1974: 8
  • States with lower speed limits than pre-1974: 17[c] The introduction to 70 or 75 mph (112 or 120 km/h) speed limits was in effect that year. The introduction to 80 mph (almost 130 km/h) limits was in about 2005, and Texas introduced 85 mph (136 km/h) in 2011.

Although traffic deaths and death rates generally declined in the United States between 1989 and 2009,[61][62] highway safety advocates have long continued to assert that increases in state speed limits after the repeal of the National Maximum Speed Law have had a detrimental effect on highway safety, and they have conducted many studies including statistical analyses that claim to support this argument. For example, the Insurance Institute for Highway Safety declared that "each 5 mph increase in the maximum speed limit resulted in a 4 percent increase in fatalities. The increase on Interstates and freeways... was 8 percent. Comparing the annual number of fatalities in the 41 states [studied] with the number that would have been expected if each state's maximum speed limit had remained unchanged since 1993, [we] arrived at the estimate of 33,000 additional fatalities over the 20-year period [from 1993 to 2013]."[63][64]

Speedometers[edit]

(55) emphasized on a Festiva dashboard
55 mph is emphasized on this dashboard.

Effective September 1, 1979, in a FMVSS that also regulated speedometer and odometer accuracy, the National Highway Traffic Safety Administration (NHTSA) required speedometers to have special emphasis on the number 55 and a maximum speed of 85 mph (140 km/h).[65] Some manufacturers circumvented the rule by including extra lines beyond 85 to show higher speeds.[66] However, on March 25, 1982, NHTSA revoked that Standard (FMVSS 127) entirely, eliminating speedometer and odometer rules because they were "unlikely to yield significant safety benefits" and "[a] highlighted '55' on a speedometer scale adds little to the information provided to the driver by a roadside speed limit sign."[67][68][69]

In popular culture[edit]

The number 55 became a popular shorthand for the 55 mph speed limit. For example, a hand with a pair of fives in Texas hold'em poker is referred to as a "speed limit".[70] Rock musician Sammy Hagar released "I Can't Drive 55", a hit single protesting the rule. The title of Minutemen's critically acclaimed double album Double Nickels on the Dime refers to the NMSL, and in jest, to the Sammy Hagar single. The bill limiting speed limits was used as a debate topic in Season 2 Episode 12 of The Simpsons.

One of a series of advertising campaigns for the 55 mph speed limit offered, "Speed limit 55. It's not just a good idea. It's the law.".[71][72][73] This was parodied[by whom?] with a more absolute statement based on the speed of light: "186,000 miles per second. It's not just a good idea, it's the law."[74]

Annotations[edit]

  1. ^ The 2.2% drop figure was calculated by finding daily consumption to be 9,299,684 barrels of petroleum. Obtain 1973's petroleum consumption from transportation sector at 2.1e from the Energy Consumption by Sector section, then convert to barrels using A1 in the Thermal Conversion Factors section (assume "conventional motor gasoline" since ethanol-based or purportedly smog-reducing gas was not common in 1973).[13]
  2. ^ Includes Texas where the same pre-1974 speed limits are applicable on the vast majority of rural roads despite some 75 and 80 mph limits.
  3. ^ Includes Virginia where the vast majority of rural freeways have a 65 mph (105 km/h) limit.

References[edit]

  1. ^ "The History of Speed Limits in America: A Nation Speeding Up". American Safety Council. Retrieved December 31, 2023.
  2. ^ "President Nixon signs national speed limit into law". Retrieved December 31, 2023.
  3. ^ "Rising Chorus Against 55-MPH Speed Limit," U.S. News & World Report. March 17, 1975.
  4. ^ "Speed Limit 55: Is It Achievable?" Report to the Congress by the Comptroller General of the United States. Washington, D.C.: General Accounting Office, February 14, 1977. Retrieved from https://www.gao.gov/assets/120/118193.pdf
  5. ^ Catherine Perrone and Lauren Handley, "Home Front Friday: The Victory Speed Limit." National World War II Museum, New Orleans, Louisiana. Retrieved from http://nww2m.com/2015/12/home-front-friday-get-in-the-scrap/
  6. ^ Lynn Arave, "'Patriotic Speed Limit' was 35 mph." Deseret News, Salt Lake City, Utah, February 17, 2009. Retrieved from http://www.deseretnews.com/article/705285620/patriotic-speed-limit-was-35-mph.html
  7. ^ "Daytime Speed Limits". States' Attitudes Toward Speed Limits. Reasonable Drivers Unanimous. March 9, 1998. Retrieved August 1, 2011.
  8. ^ Lindsey, Robert (November 20, 1973). "Nation Is Living on Less Energy For Travel, Heating and Lights". The New York Times. p. 1.
  9. ^ "Speed Limit on State Agenda". Associated Press. December 3, 1973. Retrieved July 22, 2008. (subscription required)
  10. ^ "Texas Commission OKs 55 MPH Limit". Associated Press. December 5, 1973. Retrieved July 22, 2008. (subscription required)
  11. ^ Kinch, Sam Jr. (December 6, 1973). "Lower Speed Limit Not Legal, Hill Rules". The Dallas Morning News. p. 1. Retrieved July 22, 2008. (subscription required)
  12. ^ Cowan, Edward (November 27, 1973). "Politics and Energy: Nixon's Silence on Rationing Reflects Hope That Austerity Can Be Avoided". The New York Times. p. 30.
  13. ^ Staff (June 28, 2008). Annual Energy Review (PDF) (2007 ed.). Washington, DC: Energy Information Administration. Archived from the original (PDF) on September 26, 2018.
  14. ^ "55 Mile-per-hour Speed Limit Approved by House". United Press International. December 4, 1973. p. 30. Retrieved July 22, 2008. (subscription required)
  15. ^ "Unequal Limits Hit". United Press International. November 30, 1973. Retrieved July 22, 2008. (subscription required)
  16. ^ "Text of H.R. 11372 (93rd): An Act to conserve energy on the Nation's highways. (Passed Congress version)". GovTrack.us. Retrieved December 27, 2020.
  17. ^ Travel Mode Improvement Program staff. "Chapter 8. Transition to Short-Term Planning". TMIP: Urban Transportation Planning In the United States: An Historical Overview. US Department of Transportation. Archived from the original on April 8, 2009. Retrieved July 22, 2008.
  18. ^ a b c "Nixon Approves Limit of 55 MPH". The New York Times. January 3, 1974. pp. 1, 24. Archived from the original on June 5, 2011. Retrieved July 22, 2008.(subscription required)
  19. ^ a b "Brief For The Respondents In Opposition". Nevada v. Skinner. Archived from the original on November 28, 2010. Retrieved August 1, 2011.
  20. ^ Cowan, Edward (May 14, 1974). "Senate Rejects a Rise in Speed Limits on Highways to 60 MPH from 55". The New York Times. p. 74. Retrieved July 22, 2008. (subscription required)
  21. ^ Public Law 93-643, sec. 23 United States Code 154. Retrieved from https://www.govtrack.us/congress/bills/93/s3934
  22. ^ Morrow, Adrian (April 5, 2011). "US Motorists Enjoy Least Deadly Driving Year Since 1949". Globe and Mail. Toronto. Retrieved August 1, 2011.
  23. ^ "Traffic Safety Facts 2012: Occupant Protection." DOT HS 811892. Washington, D.C.: National Highway Traffic Safety Administration (March 2014, revised September 2014). Accessed from https://crashstats.nhtsa.dot.gov/Api/Public/ViewPublication/811892
  24. ^ McFeatters, Ann (September 14, 1986). "Critics say auto safety laws not worth cost". Houston Chronicle. Scripps-Howard News Service. p. 18. Archived from the original on October 18, 2012. Retrieved July 22, 2008.
  25. ^ National Highway Traffic Safety Administration (1977) "55 mph Fact Book," p. 12, Table 1.
  26. ^ Transportation Research Board. 1984. "55: A Decade of Experience." Special Report 204. Washington, DC: National Academies Press, pp. 31-34. Accessed from http://nap.edu/11373.
  27. ^ "Road Conditions Vary Too Widely For Single Approach to Speed Limits". Transportation Research Board. National Research Council. October 1, 1998. Retrieved November 3, 2011.
  28. ^ Moore, Stephen (May 31, 1999). "Speed Doesn't Kill: The Repeal of the 55-MPH Speed Limit". Cato Institute. pp. 7–9. Retrieved April 19, 2007.
  29. ^ "Statement on Signing the Federal-Aid Highway Amendments of 1974," President Gerald R. Ford, January 4, 1975. Retrieved from http://presidency.ucsb.edu/ws/index.php?pid=4750.
  30. ^ a b Staff (May 2011). "Q&A: Speed and speed limits". Insurance Institute for Highway Safety. Archived from the original on November 20, 2008. Retrieved August 1, 2011., citing Transportation Research Board. 1984. 55: a decade of experience. Special Report 204. Washington, DC., available for purchase online at [1]
  31. ^ Lave, Charles; Elias, Patrick (February 1994). "Did the 65 mph speed limit save lives?". Accident Analysis & Prevention. 26 (1): 49–62. doi:10.1016/0001-4575(94)90068-x. PMID 8110357. S2CID 21929276.
  32. ^ "Special Report 254: Managing Speed" (PDF). Transportation Research Board: 189. Retrieved September 17, 2014. Bloomquist (1984) estimated that the 1974 National Maximum Speed Limit (NMSL) reduced fuel consumption by 0.2 to 1.0 percent. {{cite journal}}: Cite journal requires |journal= (help)
  33. ^ "Highway Statistics 1973 (Table VM-2: VEHICLE MILES, BY STATE AND HIGHWAY SYSTEM-1973)" (PDF). Federal Highway Administration: 76. Archived from the original (PDF) on March 4, 2013. Retrieved September 17, 2014. {{cite journal}}: Cite journal requires |journal= (help)
  34. ^ Lexus IS250 2.5L 6cyl, Auto 6 speed Sedan, 5 seats, 2WD Archived August 4, 2012, at archive.today
  35. ^ IS 250 Kraftstoffverbrauch kombiniert 8,9 L/100 km (innerorts 12,5 L/ außerorts 6,9 L) bei CO2-Emissionen von 209 g/km nach dem vorgeschriebenen EU-Messverfahren "LEXUS - Lexus – IS – Sportlimousine – Cabriolet – Cabrio – Kabrio – Coupé – Coupe – Hochleistung IS F – High-Performance-Fahrzeug IS F". Archived from the original on April 2, 2010. Retrieved April 22, 2010.
  36. ^ 2009 Lexus IS 250 6 cyl, 2.5 L, Automatic (S6), Premium http://www.fueleconomy.gov/feg/findacar.htm
  37. ^ Surface Transportation Assistance Act of 1978, Public Law 95-599, 92 Stat. 2689, pp. 2729-30. Retrieved from https://www.gpo.gov/fdsys/pkg/STATUTE-92-pg2689.pdf
  38. ^ a b c d Grimes, Paul (December 26, 1982). "Practical Traveler: The 55-MPH Speed Limit". The New York Times. Retrieved August 1, 2011.
  39. ^ Hamilton, Robert A. (May 7, 1989). "85% of Drivers on Interstates Are Speeders". The New York Times. Retrieved August 1, 2011.
  40. ^ "Speeders in Majority on Texas Highways". Houston Chronicle. United Press International. January 9, 1987. p. 12. Retrieved August 1, 2011.
  41. ^ Robison, Clay (June 15, 1986). "55 MPH Law Violated, but Unlikely to Change". Houston Chronicle. p. 2. Retrieved August 1, 2011.
  42. ^ "Nevada Speeders Getting $5 'Energy Wasting' Fines". The New York Times. Associated Press. April 16, 1981. Retrieved August 1, 2011.
  43. ^ a b c d "Some States Trying to Skirt Federally Mandated 55 MPH Speed Limit". Houston Chronicle. April 14, 1986. p. 3. Retrieved August 1, 2011.
  44. ^ Accessed from https://presidency.ucsb.edu/documents/republican-party-platform-1980
  45. ^ Grimes, Paul. "Practical Traveler: The 55 mph Speed Limit." New York Times, December 26, 1982. Retrieved August 1, 2011.
  46. ^ House Public Works and Transportation Subcommittee on Surface Transportation, July 23, 1985. Hearings on the Monitoring and Enforcement of the 55 mph National Maximum Speed Limit. Retrieved from https://www.c-span.org/video/?125574-1/55-mph-speed-limit
  47. ^ See also op-ed by James E. Smith, commissioner, California Highway Patrol. "Selectively Raising Limit Makes Better Policy." The Police Chief, International Association of Chiefs of Police, January 1987, p. 18.
  48. ^ "Senate Approves 65 mph limit." The Miami Herald, September 24, 1986, p. 1-A.
  49. ^ "States in a rush to raise 55 mph limit on rural roads." Chicago Tribune, April 5, 1987. Retrieved from http://articles.chicagotribune.com/1987-04-05/news/8701250868_1_speed-limit-highway-bill-road-construction-bill
  50. ^ Molotsky, Irvin (December 29, 1987). "20 States to Win the Right to Set a 65 MPH Speed". The New York Times. Retrieved August 1, 2011.
  51. ^ Judith Lee Stone, "Raising The Limit Puts Traffic On The Fast Track To Higher Deaths." Traffic Safety, May–June 1988, pp. 32-33. National Safety Council
  52. ^ Rep. James J. Howard (D-NJ). "Higher Speed Limits Will All Be Dangerous." USA Today, March 17, 1987, p. 12-A.
  53. ^ See also op-ed, Jack B. Walsh, superintendent, Ohio State Highway Patrol. "55 mph: Holding The Line." The Police Chief, January 1987, p. 19, International Association of Chiefs of Police.
  54. ^ Warner, Gene. "State, Drivers Gear For 65 MPH Speed Limit, But Debate Rages On Fallout From Tuesday's Change." The Buffalo News, July 30, 1995. Accessed from https://buffalonews.com/1995/07/30/state-drivers-gear-for-65-MPH-speed-limit-but-debate-rages-on-fallout-from-tuesdays-change/
  55. ^ Public Law 102-240, 105 Stat. 1914. Retrieved from https://www.gpo.gov/fdsys/pkg/STATUTE/105-pg.1914.pdf[permanent dead link]
  56. ^ "65 MPH Approved for Route". Wichita Eagle-Beacon. October 24, 1987..
  57. ^ "It's Time To Clear Up the Confusion: Maine Interstate Redesignation 2004" (PDF). Maine Department of Transportation and Maine Turnpike Authority. 2004. Retrieved August 1, 2011.
  58. ^ Insurance Institute for Highway Safety, Status Report, Vol. 43, #1, p.3, January 31, 2008, citing Retting, R.A. and Teoh, E.R. 2008. "Traffic Speeds on Interstates and Freeways 10 Years After Repeal of National Maximum Speed Limit." Traffic Injury Prevention 9 (2): 119-24.
  59. ^ Antone, Rod (April 18, 2002). "State Approves Higher Speed Limits". Honolulu Star-Bulletin. Retrieved August 1, 2011.
  60. ^ Staff. "Summary Chart". States' Attitudes Towards Speed Limits. Reasonable Drivers Unanimous. Retrieved August 1, 2011.
  61. ^ National Highway Traffic Safety Administration. "An Analysis of The Significant Decline in Motor Vehicle Fatalities in 2008." DOT HS 811 346. Retrieved from https://crashstats.nhtsa.gov/Api/Public/Viewpublication/811346[permanent dead link]
  62. ^ Csaba Csere, "In 1998, Speed Still Didn't Kill." Car and Driver, September 1999. Retrieved from https://www.caranddriver.com/columns/csaba-csere-in-1998-speed-still-didnt-kill-column
  63. ^ "Speed Limit Increases Cause 33,000 Deaths In 20 Years." Insurance Institute for Highway Safety, Status Report, vol. 51, no. 4, April 12, 2016, citing Charles M. Farmer, "Relationship of Traffic Fatality Rates to Maximum State Speed Limits." Traffic Injury Prevention, 5/19/2017: 18 (4): 375-380. Retrieved from https://www.iihs.org/iihs/sr/statusreport/article/51/4/3.
  64. ^ Friedman, Lee S.; Hedeker, Donald; Richter, Elihu D. (2009). "Long-Term Effects of Repealing the National Maximum Speed Limit in the United States". American Journal of Public Health. 99 (9): 1626–1631. doi:10.2105/AJPH.2008.153726. PMC 2724439. PMID 19608943.
  65. ^ 44 FR 17503
  66. ^ "85 MPH Speedo". www.classic-car-history.com. Retrieved May 17, 2019.
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  68. ^ National Highway Traffic Safety Administration (effective September 1, 1979). 47 FR 7250 "Standard No. 127 Speedometers and Odometers." Retrieved August 1, 2011.
  69. ^ Conlon, Michael J. (October 22, 1981). "Speedometer Rules Slated for Scrapping". United Press International. Retrieved July 22, 2008. (subscription required)
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  71. ^ Bennett, James T. (2014). Mandate Madness: How Congress Forces States and Localities to Do Its Bidding. New Brunswick, New Jersey: Transaction Publishers. ISBN 978-1-4128-5372-9.
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  73. ^ Advertising Council and U.S. Department of Transportation, "55 mph: It's A Law We Can Live With," 1978. Retrieved from https://www.youtube.com/watch?watch?v-GxBeSp8m5bw
  74. ^ Van Riper, A. Bowdoin (2002). Science in Popular Culture: A Reference Guide. Westport, Connecticut, USA: Greenwood Press. p. 268. ISBN 0-313-31822-0.

Further reading[edit]

  • Singell, Larry D.; McNown, Robert F. (October 1985). "A Cost-Benefit Analysis of the 55 MPH Speed Limit: Reply". Southern Economic Journal. 52 (2): 550. doi:10.2307/1059644. JSTOR 1059644.
  • Clotfelter, Charles T.; Hahn, John C. (June 1978). "Assessing the national 55 m.p.h. speed limit". Policy Sciences. 9 (3): 281–294. doi:10.1007/BF00136831. S2CID 153671885.
  • Transportation Research Board (1984). "55: A Decade of Experience." Special Report 204. Washington, D.C.: National Academies Press. Accessed from http://nap.edu/11373.
  • Rask, Mark. "American Autobahn: The Road To An Interstate Freeway With No Speed Limit." Minneapolis, MN: Vanguard, 1999. ISBN 0-9669136-0-4. LCCN: 98–90867.
  • "Report to Congress: The Effect of Increased Speed Limits in the Post-NMSL Era." DOT HS 808 637. Washington, D.C.: National Highway Traffic Safety Administration, February 1998. Accessed from https://crashstats.nhtsa.dot.gov/Api/Public/ViewPublication/808637.
  • Baxter, James J. "Thirty Years Down, Many More to Go." Driving Freedoms, Vol. 23, Issue 1, Winter 2012. National Motorists Association Foundation, Waunakee, WI. Retrieved from http://www.motorists.org/newsletter/.
  • "The 20th Anniversary of the Repeal of the 55 mph National Maximum Speed Limit: A look at the impact of the NMA's defining achievement in motorists' rights." Driving Freedoms, Vol. 26, Issue 3, Summer 2015, pp 6–7. National Motorists Association Foundation, Waunakee, WI. Retrieved from http://www.motorists.org/newsletter/.
  • Yowell, Robert O. (July 2005). "The Evolution and Devolution of Speed Limit Law and the Effect on Fatality Rates". Review of Policy Research. 22 (4): 501–518. doi:10.1111/j.1541-1338.2005.00152.x.

External links[edit]

External images
image icon "Photograph of 55 mph speed limit replacing a 70 mph limit". February 12, 1974.
image icon "Photograph of KSDOT workers changing a 75 mph sign to 55 mph". 1974. Archived from the original on December 23, 2016. Retrieved December 22, 2016.

Drive 55 Conservation Project video by Ryan Little. Tim Castleman founder of the Drive 55 Conservation Project discussing the benefits of getting drivers to slow down and observe all speed limits, never exceeding 55 MPH to reduce consumption by 20% to 50%. Film was a finalist at the 2010 Nevada City Film Festival. https://www.youtube.com/watch?v=kgCJcdurl9w&t=28s

source: https://en.wikipedia.org/wiki/National_Maximum_Speed_Law

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