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(d) Alternative Definitions/Indicators: An alternative,
simpler measure of energy
intensity for transport could be overall average fuel consumption per passenger-km or
tonne-km for all modes, but the results would be strongly influenced by the mix of
modes
and vehicle types, which varies enormously among countries and over time.
ASSESSMENT OF DATA
(a) Data Needed to Compile the Indicator:
• Energy use by mode of transport, vehicle type and fuel for passenger travel
and freight transport separately.
•
Distance travelled by vehicles, passengers and freight, including load factors.
• Distance travelled by urban public transport and corresponding share of
electric vehicles.
(b) National and International Data Availability and Sources: National energy
balances and energy statistics from the International Energy Agency (IEA) and
Eurostat normally do not disaggregate road transport
into individual means of
transport, but this information is sometimes published by transport ministries. Few
sources of energy data separate fuel consumption for air, rail or domestic shipping
into that for passengers and that for freight, but national or
private rail and shipping
organizations may have this information. Energy use for local electric transport
(commuter rail, metro, trams) is often published separately by national authorities.
Eurostat, the European Conference of Ministers of Transport (ECMT) and the United
Nations Economic Commission for Europe (UNECE) are leading agencies for the
collection
of data on vehicle-, passenger- and tonne-km in Europe. Transport
ministries in the United States, Canada, Japan, Australia and other countries publish
similar data, often through their statistical agencies. In
developing and transitional
countries, fewer data are available.
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