To ask the Secretary of State for Transport over what period the data was collected which underlies Figure (a) 1.1, (b) 1.2 and (c) 1.3 in his Department's publication, UK Air Passenger Demand and carbon dioxide forecasts. (250393)

The period over which the data underlying Figures 1.1, 1.2 and 1.3 of 'UK Air Passenger Demand and CO₂ Forecasts 2009' were collected is set out in Chapter 2 of the same report, with further detail in Annexes A-D.

Box 2.2 (p. 16) explains that the forecast shown in Figure 1.1 is based on data from the period 1984-2004. Page 26 explains that the airport choice model used in producing the forecast shown in Figures 1.2 and 1.3 is based on cross-sectional data for 2005.

Figure 1.3 illustrates the forecasting model's success in predicting movements in passenger demand since 2005.