Template:Featured article/March 2018
Disc signals were a type of signal used by the Festiniog Railway from the mid 19th century until the 1920s. They were used as auxiliary signals (a near equivalent to modern distant signals). However, their exact use was very dependent on context: a disc preceding a 'modern' semaphore signal would be regarded as a distant, yet by the 1920s the surviving disc Signals were largely regarded as 'stop' signals, where not pure level crossing signals.
After they fell out of use a number survived to be restored as heritage features. The design lives on in the form of fixed distant signals and stop boards erected in more recent times on both the Ffestiniog Railway and the Welsh Highland Railway. (more...)
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