§ Mr. Spearingasked the Secretary of State for Trade and Industry what is the latest estimate he has made of the proportion of travellers likely to use London area airports, including Maplin, if built, who have origins and destinations outside South-East England; what is the current figure; and on what study it is based.
§ Mr. OnslowThe Civil Aviation Authority conducted a sample survey of passengers at London area airports in 1972, the preliminary results of which will soon be available in its publication "Monthly Statistics". These show that 17 per cent. of terminal passengers at those airports had origins and destinations outside South-East England. Our forecasting assumes that this figure will fall slightly and we are re-examining this assumption in the studies being carried out for the promised report on the Maplin project.