§ 88. Mr. Worsleyasked the President of the Board of Trade what steps he intends to take to alleviate the nuisance caused by aircraft noise in London.
§ Mr. J. P. W. MallalieuNoise abatement measures for the London airports are under continuous review and will be improved whenever possible. In addition, we are proposing plans for a system of aircraft noise certification which I hope 301W will ensure the development of quieter aircraft.
§ 89. Mr. Worsleyasked the President of the Board of Trade when he intends to place in the Library the results of his tests of the levels of aircraft noise in the Royal Borough of Kensington and Chelsea last summer.
§ Mr. J. P. W. MallalieuThe preparation of the revised noise and number index contours for the areas affected by Heathrow traffic is a complex task involving the processinig of over 30,000 measurements and the analysis of statistics of aircraft movements. I cannot at present say when the contours will be ready but they are being prepared as quickly as possible.