As Hersham Boy says, there are a few line features around EGKR that need to be followed, the prevalent one being the railway line that runs out to Paddock Wood and beyond.
Maybe it's the local discipline but it's a bit worrying that the question needs to be asked in the first place (I'm not having a pop at you Fuji) as I'd have thought that everyone would stick religiously to the rules.
I'd also like to add that when you are "joining" a line feature, such as approaching the aforementioned from Bewl Water make sure that you keep a good eye out for other aircraft in both directions. I tend to treat it the same way as approaching a stop sign when driving!