The main purpose of the layout is to show what details can be achieved in larger scales without the need to make the layout so big it becomes impossible to transport.  Full scenic detail of this standard would not be possible to maintain if the stock were steam powered.  Damage by oil and water would destroy the finish to the lineside accessories.  For this reason electric traction is the preferred option.  All locomotives are scratch-built, as is the majority of rolling stock.  This allows a greater variety of items to be constructed.

The model represents a fictitious preservation line with buildings and other transport items used to set the period, which could be anything between 1840 and the present day.  All types of stock are modelled in keeping with the collecting policy of the trustees of the line.

Umbridge is enjoying a return to the exhibition circuit following a period of 'retirement'.  During the last five years it has been in storage.  Only recently has it been given the chance of a new lease of life by being transferred tot he care of Warley MRC, where it will be maintained in full working order and hopefully used to encourage others to join the club and enjoy the hobby of railway modelling.