Not quite sure what you mean by 'local'. If the trucks heading for the Swindon superstores are 'local' then sure. If the mind-shattering rush-hour traffic through Avebury is 'local' then sure (god only knows why they need to thunder through a World Heritage Site though). As for there being nowhere to run a bypass - come off it! What's a barn or two (even the odd tumuli here or there) got to do with the greater importance of Avebury?