This from Notwork Rail a year ago.
The new state-of-the-art rail operating centre is one of 12 which will eventually control large parts of the railway across Sussex and Surrey, replacing more than 800 signal boxes and other operational locations currently used to control trains. The new rail operating centre is part of a transformation of the railway in Three Bridges which will see it firmly placed on the national railway map for many decades to come. Eventually it will control all of the railway from London Victoria and London Bridge stations, along the length of the Brighton main line to Brighton and the south coast, and large areas either side in both Sussex and Surrey.
Efficient, maybe, but 21st century signal boxes lack the character and personality of the old way of doing things. And you can't sit on a wall near the "box" at Three Bridges and listen to the bell codes, thus predicting to other less experienced "spotters" what the next train will be. Enjoy those that are left!
Just remembered. After a tortuous corporate history, Airfix is now owned by Hornby.