Posted By Susan Powell I am doing some research in relation to Motorway Noise, particularly in relation to background noise for workers/residents who are working/living near motorways. I would particularly be interested in any evidence/data re. low level, long term consequences of motorway noise in North Yorkshire. Does anyone know where I might find any useful studies/literature/data etc? Thanks

Posted By 9-Ship Would doubt that there is much data around for this area - NY has about the lowest mileage of motorway for any English county. It's only in recent years that there has been any motorway at all, with the upgrading of the A1 to motorway status in the Wetherby/Knaresborough area. Not quite sure where the A1(M) ends, but technically certainly above Knaresborough/A59 junction, I think it it is still called the A1 and is technically not a motorway just an 'A' road. Think it might be where the A1 splits just south of the A64 junction, for the route of the old A1 and the new link road down to the M62 to the M62. In which case you are then mostly in West Yorkshire.

Posted By Robert K Lewis According to some satnavs any dual carriageway road is a motorway!! Bob

Posted By Susan Powell OK Guys - Maybe I got hung up on the "Motorway". Any heavy road noise is relevant so I would think the A1 classifies anyway. And hey there's more than sheep abiding by the A1 - There are a number of villages close by. Thanks anyway SueP

Posted By RP The TRL researched this some years ago and produced a report...

Posted By Ron Hunter Radio 2 this morning (19th Feb between 08:30 and 09:00) there was discussion of weather effect on noise propagation. Temperature inversion (dense cold air at ground level) causes low frequency noise to bounce off warmer air at higher level and travel further (apparently). You could maybe catch the program again on the interweb.