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  2. North American railroad signaling - Wikipedia

    https://en.wikipedia.org/wiki/North_American_railroad...

    Train orders could also reverse the superiority of trains, or give extra or inferior trains rights over superior trains in order to accommodate abnormal operating conditions. In North American railway traffic control, a Form 19 or 31 train order would modify their schedule. An order which did not require a train to stop was called a "Y" (yellow ...

  3. File:Training for Trainers slides Oxford 2017.pdf - Wikipedia

    https://en.wikipedia.org/wiki/File:Training_for_Trainers...

    This is a derivative work of File:Dc-2011-campus-ambassador-training.jpg, which is CC-BY User:Pongr. The presentation has been left un-styled so it can be added into an institutional template. An editable version of these slides can be downloaded from Google Docs.

  4. Corridor Identification and Development Program - Wikipedia

    https://en.wikipedia.org/wiki/Corridor_Identification...

    The Corridor Identification and Development Program, abbreviated as the Corridor ID Program, is a comprehensive planning program for inter-city passenger rail projects in the United States administered by the Federal Railroad Administration (FRA) under the 2021 Infrastructure Investment and Jobs Act (IIJA).

  5. Direct traffic control - Wikipedia

    https://en.wikipedia.org/wiki/Direct_traffic_control

    Direct traffic control (DTC) is a system for authorizing track occupancy used on some railroads instead of or in addition to signals.It is known as "direct" traffic control because the train dispatcher gives track authority directly to the train crew via radio, as opposed to through wayside personnel via telephone or telegraph, as in train orders.

  6. Train communication network - Wikipedia

    https://en.wikipedia.org/wiki/Train_communication_network

    Electronic railway equipment - Train communication network (TCN) - Part 2-2: Wire Train Bus conformance testing IEC 61375-2-2:2012 applies to all equipment and devices implemented according to IEC 61375-2-1, i.e. it covers the procedures to be applied to such equipment and devices when the conformance should be proven.

  7. Organization of the Centers for Disease Control and Prevention

    https://en.wikipedia.org/wiki/Organization_of_the...

    Its earliest predecessor was the Center for Professional Development and Training, one of the original centers established in 1980. [1] Around 1986 it merged with the Laboratory Program Office to form the Training and Laboratory Program Office, [ 27 ] which was renamed the Public Health Practice Program Office in 1989. [ 28 ]

  8. Signal passed at danger - Wikipedia

    https://en.wikipedia.org/wiki/Signal_passed_at_danger

    The 'Train Stop System' pair of loops is located at the signal, and will activate the emergency brake if the train passes over them at any speed when the signal is at danger. TPWS has proved to be an effective system in the UK, [ citation needed ] and has prevented several significant collisions.

  9. Automatic train control - Wikipedia

    https://en.wikipedia.org/wiki/Automatic_train_control

    Automatic train control (ATC) is a general class of train protection systems for railways that involves a speed control mechanism in response to external inputs. For example, a system could effect an emergency brake application if the driver does not react to a signal at danger.