Railway modelling offers a unique opportunity for the modeller to construct and operate an authentic simulation of the real thing. When one creates a model railway, one should strive to embed the sense of purpose from the real railway into their model. Simply moving trains around aimlessly around a layout may be enjoyable, but it doesn’t reflect how the real railway operates. There is much focus on absolute accuracy with regards to locomotives and rolling stock but far fewer modellers in general pay attention to prototypical accuracy and replicating authentic railway operations in miniature. Operating your layout in a realistic fashion is not only more authentic, but it can also be an enjoyable pastime in its own right. It gives purpose to the movement of every train on the layout and, if it involves co-operation between more than one operator, involves teamwork and good communication which can be immensely satisfying. Finally, realistic operation is supported by many other factors, a sense of time and setting, sensible track layout, correct placement of signals, the proper formation of trains, realistic civil engineering, and layout ‘clutter’. These all add to the overall atmosphere and setting of a real or fictional railway, tying it to a time and place, and making the whole ensemble more authentic and thus making the whole experience feel more ‘real’. This book is intended to help those with an interest in the BR Blue (TOPS) and Sectorisation eras present their layout in a realistic manner using easy-to-understand sketches and drawings, previously unpublished period photographs and source material from the era. This book will give the reader ideas to help their N Gauge model railway come to life.