Request Unlock to allow a right turn into Southern Grove. Nearby UR is asking for this. I am wondering if the Mile End Road / Bow Road needs to be split into a East and Westbound segments. The reason I say this, with the CS2 works they have removed a lot of the central reservation along the road. But they have the Islands at the Burdett Road Junction. So it will need Splitting there since the this junction different lanes go in different directions now. 
Downlocked.
As for whether it should split, looking at the present aerials, it seems that most of the central reservation is just paint, and a lot of side roads go through the central reservation to permit right turns in one direction or the other. So if it wasn’t already split, I would certainly say “don’t split it now”. Which isn’t necessarily to say that it’s worth the hassle of removing the split which already exists.
I expect you’ve already seen the Wiki advice on the subject.
Ian
For the Turning I have allowed it but I do expect to change it again in the Future.
I have read the advice but the only problem is the Junction with Burdett Road. We now have a Left turn, Right turn and Straight over Lanes. So I am expecting a UR to request a Keep Right or Keep Left before the Traffic Lights. Looks like the Users are looking out of the windows here. 
Relock still required here.
Not any more. 
Ian