@robs.rails: 🚆 Class 20 Token Exchange At Highley As Class 20 20048 pulls into Highley station on the Severn Valley Railway, the loco's crew exchange the single line token with the signalman. On the Severn Valley Railway, single line tokens are used to ensure only one train can occupy a section of single track at a time. The driver must be in possession of the correct token before entering the section, making this traditional signalling system a simple and effective way of maintaining safe railway operations. #diesel #trains #heritage #railway #railfan

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Sunday 05 July 2026 06:23:00 GMT