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  2. Patna–Howrah Vande Bharat Express - Wikipedia

    en.wikipedia.org/wiki/Patna–Howrah_Vande_Bharat...

    The 22348/22347 Patna - Howrah Vande Bharat Express operates 6 days a week, covering a distance of 532 km (331 mi) in a travel time of 6 hrs 35 mins with an average speed of 81 km/h (50 mph). The Maximum Permissible Speed is 130 km/h (81 mph).

  3. Traffic-sign recognition - Wikipedia

    en.wikipedia.org/wiki/Traffic-sign_recognition

    Traffic-sign recognition first appeared, in the form of speed limit sign recognition, in 2008 for the 2009 Vauxhall Insignia. [1] Later in 2009 they appeared on the new BMW 7 Series, and the following year on the Mercedes-Benz S-Class. At that time, these systems only detected the round speed limit signs found all across Europe (e.g. [2]).

  4. Intelligent speed assistance - Wikipedia

    en.wikipedia.org/wiki/Intelligent_speed_assistance

    ISA was born in France when Saad and Malaterre (1982) carried out their study of driver behaviour with an in-car speed limiter. Actually, they did not really test Intelligent Speed Adaptation, because the system did not automatically set the correct speed limit; instead drivers had to set the limiter themselves, and, rather like a cruise control, they could set it as they chose.

  5. Radar speed sign - Wikipedia

    en.wikipedia.org/wiki/Radar_speed_sign

    Standard radar speed sign with block letters. Pictured with solar panel.. A radar speed sign or speed feedback sign is an interactive sign comprising a speed-measuring device (e.g. a loop detector or radar) and a message sign generally constructed of a series of LEDs, which displays vehicle speed of approaching motorists. [1]

  6. Speed limits in the United States - Wikipedia

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

    As of May 15, 2017, 41 states have maximum speed limits of 70 mph (113 km/h) or higher. 18 of those states have 75 miles per hour (121 km/h) speed limits or higher, while 7 states of that same portion have 80 mph (129 km/h) speed limits, with Texas even having an 85 miles per hour (137 km/h) speed limit on one of its toll roads.

  7. Speed limit enforcement - Wikipedia

    en.wikipedia.org/wiki/Speed_limit_enforcement

    The use of speed limits predates both motorized vehicles and enforcement of the laws. Facing the invention of the automobile, many nations enacted speed limit laws, and appropriate measures to enforce them. [4] The Locomotive Acts in the UK set speed limits for vehicles, and later codified enforcement methods. The first Locomotive Act, passed ...

  8. File:World Map of Speed Limit Units on Traffic Signs.svg

    en.wikipedia.org/wiki/File:World_Map_of_Speed...

    You are free: to share – to copy, distribute and transmit the work; to remix – to adapt the work; Under the following conditions: attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made.

  9. Speed limits by country - Wikipedia

    en.wikipedia.org/wiki/Speed_limits_by_country

    A speed limit is the limit of speed allowed by law for road vehicles, usually the maximum speed allowed. Occasionally, there is a minimum speed limit. [1] Advisory speed limits also exist, which are recommended but not mandatory speeds. Speed limits are commonly set by the legislative bodies of national or local governments.