This site describes signalling on the Severn Valley Railway and the activities of the volunteer S&T Department. Mechanical locking and some of the principles of Signal Engineering are explained. Some computer software may be downloaded. It is arranged in six sections.
The site was last updated on 23rd May 2014. Worth a look is 1940s railway maps. These maps show many boxes - recently added Midland boxes. A text search for a box name is included, as well as links to a modern map and a satellite image.
Your browser is: