Derby is a major rail centre with a long history going back to 1844. It is the interchange point between the Midland Main Line from St Pancras to Leeds and long-distance services on the Cross-Country route from the south of England to the north and Scotland. There are also frequent local services to Nottingham, Stoke, Crewe, Birmingham and Cardiff and a lot of freight trains to deal with.
The simulation is of Derby Power Box, giving the user control of a large area including Derby station, Wichnor Junction, Burton-on-Trent, Drakelow power station and Ambergate.
The included 1991 SX timetable is for a full 24 hours, nearly 400 trains.