The full signalling system at Holt, with 14 signals as well as the box, was commissioned in 2009 – winning the HRA signalling award for that year.
Railway signalling, use of signal lights to control train traffic flow
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The Research Division was involved in new signalling systems, such as Solid State Interlocking (SSI) and the Integrated Electronic Control Centre (IECC), and in the design of the overhead lines for the West Coast Main Line.
The Esk Valley line still uses a physical token system, modified so that train drivers operate the token instruments themselves (the system of working is known as No Signalman Token Remote and is used on other routes such as the Heart of Wales Line and the Tarka Line).
Under this scheme, mechanical semaphore signals were replaced with new colour-light signalling, a new fleet of Class 165 "Chiltern Turbo" diesel trains was introduced, Automatic Train Protection was fitted, line speeds were raised, and stations refurbished.
York Integrated Electronic Control Centre is a major signalling control centre on the East Coast Main Line railway between London and Edinburgh.
The Institution of Railway Signal Engineers, a UK-based professional institution for railway signalling and telecommunications.