Grimsby Dock Semaphore's
This post has a stop and distant semaphore attached, the distant semaphore is the lower of the two.
The stop signal is set to the "on" position meaning the train must stop, when the stop signal is raised to the "off" position the train can proceed.
The distant signal gives advanced warning of the indication of a stop signal, it works in the same way as the stop signal but gives either a "caution" indication when set to "on" as in this picture or a proceed indication when set to the "off" raised position.
Situated near Gilbey Road crossing on the docks complex
Grimsby Dock Semaphore's
This post has a stop and distant semaphore attached, the distant semaphore is the lower of the two.
The stop signal is set to the "on" position meaning the train must stop, when the stop signal is raised to the "off" position the train can proceed.
The distant signal gives advanced warning of the indication of a stop signal, it works in the same way as the stop signal but gives either a "caution" indication when set to "on" as in this picture or a proceed indication when set to the "off" raised position.
Situated near Gilbey Road crossing on the docks complex