It takes a lot to keep all of Amsterdam running 24 hours a day, 7 days a week  

 

Statistics by year

Passengers ​2011 2010* 2009 2008 2007
Number of passengers x million 204​ 200 221 218 215
Traveller kilometers x million 770 755 969 966.57 957

* as 2010, the OV-chipkaart is the source of the data (for paying passengers). It is a source used for the WROOV sample (including fare dodgers) (Werkgroep Reizigers Omvang en Omvang Verkopen (work group on quantifying passengers and sales) under commission from the Ministry of Transport, Public Works and Water Management)
 
The passenger is king
GVB provides safe, clean, and comfortable travel on their bus, tram, and metro services. Recently, 70 new buses were added to the routes in the city. These buses satisfy the most stringent environmental requirements for clean air. These are also a pleasure to ride in and are noiseless.

Green power
All trams and metros use green power.