Geoff Penn
Caution
The back of a 'distant' signal set to caution on the Bluebell Railway.
(Anorak warning)
A distant signal is one that provides advance warning of a stop signal ahead and does not compel a train to stop. In some regions, notably North America, the terms distant signal and approach signal are both in common usage.
Because of the long distance required to bring a moving train to a stand, distant signals must be located on the approach to the corresponding stop signal by at least the braking distance of the worst braked train to use the route.
Caution
The back of a 'distant' signal set to caution on the Bluebell Railway.
(Anorak warning)
A distant signal is one that provides advance warning of a stop signal ahead and does not compel a train to stop. In some regions, notably North America, the terms distant signal and approach signal are both in common usage.
Because of the long distance required to bring a moving train to a stand, distant signals must be located on the approach to the corresponding stop signal by at least the braking distance of the worst braked train to use the route.