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London Airports

Question for Department for Transport

UIN 18071, tabled on 27 November 2015

To ask the Secretary of State for Transport, for what reasons the Airports Commission used his Department's National Air Passenger Demand Model and National Air Passenger Allocation model in its work; whether the assumption of homogenous capacity in those models affected the net present value figures in Table 7.1 of the Commission's Final Report, published in July 2015, compared with a model that distinguished between long and short-haul, business and leisure, and domestic and international capacity; and what assessment he has made of whether the use of a model that distinguishes between such different types of capacity would increase or decrease the net present value of each of those shortlisted schemes.

Answered on

4 December 2015

The Government is currently considering the large amount of very detailed analysis contained in the Airports Commission’s final report before taking any decisions on next steps.


The Government will carefully consider all the evidence set out, including that on costs, when making a decision on additional runway capacity.