§ Lord James Douglas-Hamiltonasked the Secretary of State for Trade where the monitoring points are sited at Heathrow Airport; and what is their relationship to the flightpath.
§ Mr. Clinton DavisThe Heathrow monitoring points are located under or near take-off flight paths in places where densely built-up areas commence. I am making available to the hon. Member a map showing their precise locations.
§ Lord James Douglas-Hamiltonasked the Secretary of State for Trade what is the maximum permitted noise of an aircraft (a) in daylight hours and (b) at night time, approaching or taking off from 177W Heathrow Airport, under the flightpath at specific monitoring points.
§ Mr. Clinton DavisEvery jet aircraft using Heathrow should, after take-off, not exceed 110 PNdB by day—0700–2300 hours local time—or 102 PNdB by night—2300–0700 hours local time—at specified monitoring points. There are no similar requirements for landing aircraft.