So approaching a sharp left turn (>90deg) you put a " straight ahead" arrow?I'm in the confusing road layout camp. From back here, it's not obvious where you should be turning in, and with all the TURN LEFT's written in the road, it's no wonder this person has turned where they did.
![]()
The thing is, it wouldn't take much paint, a few bollards and a couple of extra keep left / right signs to make it much more clear as to where you should go.
![]()
I rather think that would increase the number of accidents at the junction.
And, leaving aside the more unpleasant consequences, it would probably cause more delay minutes to SW than one misguided driver in 10 years

Highly unlikely - without an existing highway there would be no public level crossing.looking at the map I'd say the railway was there first anyway
It has certainly been there since 1871 when West Barnes Lane was but a track (6in OS map online).