§ Mr. Buchananasked the Secretary of State for Transport what was the comparative energy efficiency per passenger kilometre of the private car, the bus, the aeroplane and the train at average load factors in 1969, 1974 and at the latest date for which figures are available.
§ Mr. HoramGeneral figures for comparative energy efficiencies are not available. Paper 2 of the Advisory Council on Energy Conservation, "Passenger Transport: short and medium-term considerations" (HMSO 1976), gives current estimates of energy efficiencies for particular examples of rail, bus and car operation in Table 7. Similar estimates for earlier years are not available.