RRT 3 Tips and Strategies from the Heineken & Pacific Railroad
Bulldozing expenses - Watch out when bulldozing company assets. You are not only using money by bulldozing but you are destroying company equity. If the goal of the game is CBV, this could spell disaster for you. More importantly in the early game, the bankers look closely at your profit. If you have large losses caused by destroying company assets by bulldozing, they will downgrade your bond rating. Thus you will not be able to sell bonds to grow.
Track maintenance appears to be 5% of the cost of the track. It is one of the major expenses your railroad has.
The various buildings also produce demand. They want passengers and mail. Here is a listing of their needs.