==================== Transportation modes ==================== .. contents:: Trips can be calculated for different modes of transport. The overview here summarizes, which parameters influence the carbon emission intensity of a trip for the different transportation modes. The specific emission factors for different configurations (e.g., vehicle size, fuel type, etc.) are documented under :doc:`Emission factors `. Car trip -------- The quantity of CO2e emitted by a car trip per km depends on the ``fuel_type`` (average, cng, diesel, electric, gasoline, hybrid, plug-in_hybrid), car ``size`` (average, small, medium, large) and the number of ``passengers``. Bus trip -------- The quantity of CO2e emitted by a bus trip per km depends on the bus ``size`` (average, small, medium, large) and the ``vehicle_range`` (local, long-distance). Plane trip ---------- The quantity of CO2e emitted by a plane trip per km depends on the ``seating_class`` (average, economy_class, business_class, first_class) and on the ``distance`` of the flight. Ferry trip ---------- The quantity of CO2e emitted by a ferry trip per km depends on the ``ferry_class`` (average, foot_passenger, car_passenger). Motorbike trip -------------- The quantity of CO2e emitted by a motorbike trip per km depends on the ``size`` (average, small, medium, large) of the motorbike. Train, tram, bicycle or pedelec trip -------------------------------------- For train, tram, bicylce or pedelec, no specifica have to be provided.