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Data model
The table shows the CO2 equivalent emission factors of the different lines and modes of transport in Île-de-France. These emission factors are expressed in passenger-kilometres (CO2 equivalent emitted by a passenger travelling over 1 km). They are provided by transport operators for public transport, and by Ademe's Carbon Base for others.
The CO2e/voy/km column by mode of transport aggregates the CO2e emission factors to the "mode of transport" grid. It is these values by mode that are used for the CO2 calculation of the Île de France Mobilités route planner.