Trains on Tracks Gameplay

About Trains on Tracks, from BoardGameGeek:

In Train on Tracks, player tries to lay railway tiles to connect coal mines to the power station, then trains depart each round. The goal is to create efficient railway layout so that returning empty trains don't block full ones. The player assumes a role of a railway track company in the age of steam with goal to build railways. The innovative laying system giving player freedom to create any tracks with almost any intersections. -description from the designer