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  2. Anatomical Therapeutic Chemical Classification System

    en.wikipedia.org/wiki/Anatomical_Therapeutic...

    The ATC classification system is a strict hierarchy, [5] meaning that each code necessarily has one and only one parent code, except for the 14 codes at the topmost level which have no parents. The codes are semantic identifiers, [ 5 ] meaning they depict information by themselves beyond serving as identifiers (namely, the codes depict ...

  3. Automatic train control - Wikipedia

    en.wikipedia.org/wiki/Automatic_train_control

    Since 2006, the Tōkaidō Shinkansen's ATC-1A system has been superseded by ATC-NS. ATC-2: Used on the Tōhoku, Jōetsu and Nagano Shinkansen routes, it utilized 0, 30, 70, 110, 160, 210 and 240 km/h (0, 19, 43, 68, 99, 130 and 149 mph) trackside speed limits. In recent years, ATC-2 has been superseded by the digital DS-ATC.

  4. EBICAB - Wikipedia

    en.wikipedia.org/wiki/EBICAB

    EBICab 700 was originally derived from Ericsson's SLR system in Sweden. Most trains in Sweden and Norway use a similar on-board system, Ansaldo L10000 (more known as ATC-2) from Bombardier's competitor Ansaldo STS (now Hitachi Rail STS). [1] ATC-2 was also developed in Sweden. [2] EBICab balise in the Mediterranean Corridor

  5. Communications-based train control - Wikipedia

    en.wikipedia.org/wiki/Communications-based_train...

    The 2,4GHz band is commonly used in these systems (same as WiFi), though other alternative frequencies such as 900 MHz , 5.8 GHz or other licensed bands may be used as well. ATS system. The ATS system is commonly integrated within most of the CBTC solutions.

  6. ATACS - Wikipedia

    en.wikipedia.org/wiki/ATACS

    Advanced Train Administration and Communications System (ATACS) is an automatic train control (ATC) system developed by RTRI starting from 1995 [citation needed] and first introduced by JR East on the Senseki Line in 2011. It uses radio communication rather than traditional signals, and works as a moving block system. [1]

  7. Washington Metro signaling and operation - Wikipedia

    en.wikipedia.org/wiki/Washington_Metro_signaling...

    From the June 2009 collision until 2015, Metrorail operators operated the trains exclusively in manual mode; the ATC system was restored to the Red Line in 2015. [3] The automatic train protection system still limits the maximum speed of every train that is in revenue service. ATO has been restored on the Red Line on December 15, 2024 after 15 ...

  8. Future Air Navigation System - Wikipedia

    en.wikipedia.org/wiki/Future_Air_Navigation_System

    Air traffic control's ability to monitor aircraft was being rapidly outpaced by the growth of flight as a mode of travel. In an effort to improve aviation communication, navigation, surveillance, and air traffic management ICAO, standards for a future system were created. This integrated system is known as the Future Air Navigation System (FANS ...

  9. Air traffic control - Wikipedia

    en.wikipedia.org/wiki/Air_traffic_control

    The air traffic control tower of Mumbai International Airport in India. Air traffic control (ATC) is a service provided by ground-based air traffic controllers who direct aircraft on the ground and through a given section of controlled airspace, and can provide advisory services to aircraft in non-controlled airspace. The primary purpose of ATC ...