[holding answer 16 January 2008]: The breakdown of the monetised benefits from each option in the “Adding Capacity at Heathrow Airport” consultation document is given in table 4.3 (p79) of “UK Air Passenger Demand and CO2 Forecasts”, available at:
http://www.dft.gov.uk/pgr/aviation/environmentalissues/ukairdemandandco2forecasts/
The following table reproduces the figures for the three consultation document options. The “government” row of this table reports the estimated additional air passenger duty expected from each option.
£ billion, NPV, 2006 prices Option One Two Three Generated users 9 9 9 Existing users 1— 1— 1— Freight users 1— 1— 1— Producers 5 5 5 Government 3 3 3 Carbon -5 -5 -5 Noise 1— 1— 1— Delay Reductions: Users 2— 1 2 Carbon 2— 1— 1— Total 12 13 14 1 A non-zero impact is estimated, but the result rounds to nought at zero decimal places. 2 No impact has been estimated. Note: Figures are rounded to zero decimal places.