Crossing sequence (railways)

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In rail transport, the crossing sequence is a pattern (2 long, 1 short, 1 long. Each about 2 seconds for the long, 1 second each for the short & spaces) sounded by a locomotive horn or whistle as the train approaches and passes a grade crossing.[1][2]

See also[edit]


  1. ^ Network Rail. "Types of Level Crossing". 
  2. ^ "W&H Right-of-Way: Diesel Locomotive Sounds". Webville & Hypertext Railroad Company.