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  2. Speed limits in the United States - Wikipedia

    en.wikipedia.org/wiki/Speed_limits_in_the_United...

    Prior to 2009, a speed limit could be defined in kilometers per hour (km/h) as well as miles per hour (mph). The 2003 version of the MUTCD stated that "speed limits shown shall be in multiples of 10 km/h or 5 mph." [ 118 ] If a speed limit sign indicated km/h, the number was circumscribed and "km/h" was written below.

  3. Rail speed limits in the United States - Wikipedia

    en.wikipedia.org/wiki/Rail_speed_limits_in_the...

    60 mph (97 km/h) BNSF between Spokane and Kettle Falls, Washington; and Canadian National’s Wisconsin Central line between Neenah, Wisconsin and Sault Ste. Marie, Michigan. [9] Class 4 [us 2] 60 mph (97 km/h) 80 mph (129 km/h) Chicago’s Metra; and New England Central’s entire main line. [9] Class 5 [us 3] 80 mph (129 km/h) 90 mph (145 km/h)

  4. Speed limits in the United States by jurisdiction - Wikipedia

    en.wikipedia.org/wiki/Speed_limits_in_the_United...

    Within "business or residential" districts, exceeding the speed limit by more than 20 miles per hour (32 km/h) is considered criminal. Within "urbanized areas", 55 miles per hour (89 km/h) speed limit citations are given for "waste of a finite resource". This exception only applies within a 10-mile-per-hour (16 km/h) threshold.

  5. Speed limits by country - Wikipedia

    en.wikipedia.org/wiki/Speed_limits_by_country

    Kilometres per hour are on the left and miles per hour on the right.* A speed limit is the limit of speed allowed by law for road vehicles, ... 80–90: 60–70: 10 km/h

  6. Acela - Wikipedia

    en.wikipedia.org/wiki/Acela

    The Pennsylvania Railroad ran Metroliner test trains in the late 1960s as fast as 164 mph (264 km/h) and briefly intended to run the Metroliner service at speeds reaching 150 mph (241 km/h). Certification testing for commercial operation at 160 mph (257 km/h) involving test runs at up to 165 mph (266 km/h) began between Trenton and New ...

  7. Miles per hour - Wikipedia

    en.wikipedia.org/wiki/Miles_per_hour

    Miles per hour (mph, m.p.h., MPH, or mi/h) is a British imperial and United States customary unit of speed expressing the number of miles travelled in one hour. It is used in the United Kingdom , the United States , and a number of smaller countries, most of which are UK or US territories, or have close historical ties with the UK or US.

  8. Southwest Chief - Wikipedia

    en.wikipedia.org/wiki/Southwest_Chief

    The Southwest Chief runs up to 90 mph (145 km/h) along a significant portion of its route, made possible by automatic train stop systems originally installed by the Santa Fe Railway. Of Amtrak's long-distance routes, only the Texas Eagle runs faster (with a maximum speed of 100 mph (161 km/h) through much of Illinois). [36]

  9. Higher-speed rail - Wikipedia

    en.wikipedia.org/wiki/Higher-speed_rail

    State-level departments of transportation and council of governments may use different definitions. Below is the list of known definitions of higher-speed rail which use some of the 5 speed levels, 80 mph (130 km/h), 90 mph (145 km/h), 110 mph (175 km/h), 125 mph (200 km/h) and 150 mph (240 km/h):