Occupancy rates of passenger vehicles Published (reviewed and
quality assured) Justification for indicator selection Vehicle
occupancy rates can be used to explain changes in levels of
vehicle ownership and to illustrate changes in the efficiency of
mass passenger transport. Efficient usage of passenger vehicles
results in the need for less vehicle-kilometres to transport the
same number of passengers. Utilisation efficiency is one of the
main parameters that determine energy and emissions efficiency,
meaning that the vehicle occupancy indicator is important in
relation to the environmental impact of different transport
modes. Passenger transport occupancy rate (%) is monitored for
air, cars, bus/coach, and train. Car occupancy rate is assessed
by the number of passengers per vehicle. Other relevant
indicators are passenger km: cars, bus/coach, air, train, tram,
metro, vessel (inland and sea); and vehicle km: cars, bus/coach,
air, train, tram, metro, vessel (inland and sea). Inland and sea
transport occupancy