Transport Tycoon Deluxe Cheats

Build two connected railroad tracks over a road. Build
a depot on the side of the track that is not on the road. Buy
a train and let it go. Get the train on the track over the road
and reverse it a few times to keep the lights on. Then, let the
train go to the end of the track. It will turn around automatically.
Send it to the depot, sell it, and destroy the depot. If done
correctly, the lights will be flashing with no train.
Strategy: by Peter Elfers

When your train arrives in the stattio and begins what can be a long loading/unloading process, order it to the nearest train depot. As soon as it's set off, hit the "go to nearest depot" button again and make it skip its orders to the next place on the line. Voila, your loading/unloading time has been minimised.

Rename a town to Happy Town.