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my driveway is the standard 8/9ft wide however due to living in a conservation area we have a tree either side at the top thus making it only accessible if you enter 'square on' as it were and obviously the same applies in getting out, the vehicle has to come out square and then turn or risk the scraping of the sides on the trees and so consequentially any vehicle parked in the road immediately opposite or marginally to either side poses the problem of not getting in/out and sadly it is residents and their associates, tragic really to think that these people actually have licences to do this, mind you in my opinion they most likely got them from the cereal packet they opened that morning for all the knowledge and consideration they clearly lack - and the road is still technically owned by the developer not the residents and being in a conservation area signs are not allowed, ludicrous i know but sadly fact, so the general conclusion is that there is nothing i can do, oh good, something to look forward to next time it happens, but thanks for your input