Despite modern appearances, colour light signalling has been around since the 1920s and is just as full of subtle details and variations as 'traditional' semaphore signalling.

The inclusion of a working signalling system within a model railway layout is technically challenging but adds realism and 'wow' factor. With more than 200 illustrations including colour photographs of both prototype and actual model signalling, as well as easy-to-follow tables, diagrams and flow charts, Colour Light Signalling for Model Railways contains: a brief history of the development of colour light signalling in the UK along with a basic explanation of how track design influences signalling design. An overview of different types of point motor is given along with descriptions of the different components that make up a signalling system and how these components are used and controlled.