The initial objective of a new railway model full of locomotives, tracks and rolling stock is to operate two trains on their route at the same time, each with independent speed and direction control. If you carry out the above preventive maintenance steps on your Hornby or other train models, it will work smoothly for many years. Keeping the rails clean is so important for trains to run smoothly. I was about to start this list with her.
Practically all of the model train forums and railway modelers who give advice here agree that it is an essential maintenance task.