Passenger-kilometers traveled by public transportation in France 2019-2020, by mode
In 2020, the public transport passenger traffic in the Île-de-France region amounted to approximately 18.8 billion passenger-kilometers, of which around 56.5 percent traveled on the commuter rail service (RER). During the same year, the passenger-kilometers of the French public transit networks outside Île-de-France reached 7.9 billion.
