Board Thread:Questions and Answers/@comment-24127406-20131103190934/@comment-15636815-20131111015444

If Dracula wants the waggons full, then you must send him full waggons. If your passenger base is too low to fill the waggons, then you must increase your passenger base.

To increase your passenger base, build buildings. Go to Building Themes, and click on the links for the themes you own. Sort the tables by "Passengers per space" in descending order. (That's the column immediately to the left of "Notes", or the far-left column if there is no "Notes".)  Buy the highest-ratio buildings you can afford.

If you have neighbours in the game, you can ask them to place flags at your station to increase your passenger capacity by up to 100%. If you have the Embassy in your station, then the maximum potential increase is 200%.