There can be more than one bus on a line. The more buses ride the
line, the more passengers you can transport. If you want to move
around lots of passengers, you will have to buy more buses.
The player who chose buying a bus puts the action stone he
used in the bus parking lot on the action board. Every stone on this
parking lot stands for one bus that may ride that player’s
line. Each bus will transport a maximum of one passenger per
It is important for all players to know the number of buses owned
by the player who has the most buses. This number is called the
maximum number of buses. The number of passengers, line
expansions and buildings that can be added each turn depends on this
maximum number of buses (see above). If the player who has the
most buses buys another one, the maximum number of buses
immediately increases. All players who have chosen new
passengers or new buildings have to bring more passengers
or buildings into play that turn.