Not sure how that works on that particular roundabout and I do use it regularly. East to west has a filter, so which direction and at what time? My own sneaky trick when departing Lewes in the rush hour, is to use the middle lane when turning right. Westbound traffic often blocks the roundabout...
So I am not sure if this has a recognised name, but I have taken to calling it double roundabouting.
Anyone know what I am talking about?
Trying to exit Shoreham Beach in the morning there is always a long queue of traffic from Lancing. In the past the road markings were not that clear, so...