automatic train control

English

Noun

automatic train control (uncountable)

  1. (rail transport) A train protection system 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.
    Synonym: ATC
    • 1957 January, “Modernisation Plan Progress”, in Railway Magazine, page 16:
      Plans are being made for automatic train control to be provided on the main traffic routes throughout the country. During the period 1956-1962, the following routes will be equipped: […] .
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