Signalling
Since its opening on 1 July 1880, the single line between Dalmally and Oban was worked by the electric token system, this being the first ever application of that system in everyday service.
Oban originally had two signal boxes, namely Oban Station signal box (the larger of the two), and Oban Goods Junction signal box. The latter was situated about a quarter mile further south, where the line to the goods yard and engine shed diverged from the single line. The original signal boxes contained 21 and 5 levers, respectively. The single line between the two boxes was doubled in 1881.
In connection with the station's enlargement, Oban Station Signal Box was replaced (on the opposite side of the line and slightly nearer the station) in 1904. The new box contained a frame of 64 levers, subsequently shortened to 48. Oban Goods Junction S.B. was replaced in 1929.
Oban Goods Junction S.B. closed on 4 May 1969. Oban Station S.B. closed on 5 December 1982, when a 'no signalman' system of electric token working was introduced on the section from Taynuilt signal box. The last remaining semaphore signals were removed at that time, including the signal gantry.
The Radio Electronic Token Block system was introduced in 1988 and the Train Protection & Warning System was installed in 2003.
Read more about this topic: Oban Railway Station