Flight over Windsor Castle rampartsFebruary 18, 2008 at 2:58 pm | Posted in Aircraft, Heathrow, Ramparts, Windsor Castle | 2 Comments
Yesterday’s view from St. George’s Chapel south side looking up over the ramparts of Windsor Castle in Lower Ward (click to enlarge image):
Giant versions of these maps (HTML page links to 46 large PDF map files) were available at Department for Transport Public Exhibitions for Adding capacity at Heathrow airport. They include:
- 2002 arrivals with 57dBA Leq contour in bright red (which included Concorde at four hourly intervals)
- 2015 arrivals ditto (mixed mode but no R3)
- 2030 arrivals ditto (with R3)
make it look like Windsor Castle will likely benefit from adding capacity at Heathrow airport. My confidence in these projections is not high!
The noise contours for 57dBA Leq dodge around Windsor Castle in an indicative map of a future scenario I was shown at a Public Exhibition. Profiles show greater noise further away from the airport at river level. How the noise is lower at the top of the hill closer to the airport as aircraft descend for final approach to Heathrow runways, beats me. The only way to achieve that would be for pilots to turn engines off to glide over Windsor Castle!
Perhaps I was being shown maps for noise due to departures instead of arrivals … but I did ask for an explanation of the difference between noise levels for departures and arrivals, as I notice they are typically presented separately on the noise contour maps. These noise sources happen to occur simultaneously when aircraft are arriving over Windsor at the same time they are departing over Windsor. As you can tell, I still have loads of unanswered questions about the future scenarios we were shown of indicative noise assessments.
I do hope HM the Queen was sent a Consultation Summary like the rest of us 😉