You can never be too sure how long signal boxes will last on today’s rapidly changing railway. Long term back water of the rail network is the Inverness – Aberdeen line with signal boxes, single line working with token exchange and traditional semaphore signalling. How long will it last?
The age-old process of token exchange between signalman and driver. The process of single line working using tokens has been a safe and reliable system for years. After leaving the box, the train will enter the loop at Elgin station.