Littlewood is a fictitious layout representing BR practice from the late 70s to present day. Not being based in any exact location enables a wide variety of locos and rolling stock in many liveries to be used.
The track plan comprises a double track mainline which passes through three levels; on the middle level it is joined by two slow lines making a quadruple section. The lower level mainline is equipped with overhead catenary for electric services. A disused branch line from the upper level has been taken over by a preservation society, who are in the process of restoring it for steam and diesel operation.
Design and construction of the layout started in April 1990. The track plan was mapped out using a Computer Aided Design System by Richard and, once finalised, the resulting complex base shapes were generated from the same programme. All the track work is Peco code 80 with live frog points operated by Peco point motors. The movement of trains is almost totally automatic, using a system of reed switches and relays, operated by magnets on the leading vehicle of each train. There are over 25 trains moving around the various circuits, so there should always be something on the move.