Noise Impact Analysis said:Noise from the planned new coaster was modelled on a similar one located at Thorpe park. The Thorpe park ride, "No Way Out" is totally enclosed within a metal framed/clad building.
What does a indoor, backwards, old, family Vekoma coaster have similar to SW6?
Noise Impact Analysis then said:These sound power levels were then used, again using the standard calculation method, to predict outdoor "free-field" sound pressure levels from the external areas of the proposed replacement coaster. Listening tests at Thorpe park indicated total inaudibility of the ride noise external to the building.
Perhapse this is a Vekoma then, since Merlin are using data from their only Vekoma coaster to predict levels for SW6. I'm sure it would have been a lot easier to take readings from the likes of Colossus or Rita if they wanted noise analysis for an Intamin track.
Atleast the good news is that they don't think its going to be very loud.