danger signal

English

A signal on red is a danger signal.

Alternative forms

• danger-signal

Noun

danger signal (plural danger signals)

1. (rail transport) A signal set at danger and showing a red light or other stop indication, which a train driver must not pass until it changes or until manually cleared past the signal by a dispatcher.
   • 2005, "Practical Railway Engineering" by Clifford F. Bonnett, Imperial College Press →ISBN [1]

     On a train travelling at say 40 miles per hour a driver would have to react quite quickly to bring his train to a halt at a danger signal even if he could see that signal half a mile away.

2. (also figurative) An indication that a potentially bad or dangerous situation could develop.

Related terms

• (rail) SPAD

Translations

railway signal

• Danish: stopsignal n
• Norwegian:

  Bokmål: stoppsignal n

  Nynorsk: stoppsignal n

indication of a bad or dangerous situation

• Danish: faresignal n
• Norwegian:

  Bokmål: faresignal n

  Nynorsk: faresignal n

References

• “danger signal”, in Lexico, Dictionary.com; Oxford University Press, 2019–2022.
• “danger signal”, in OneLook Dictionary Search.

Anagrams

• landing gears