Semi-Tunnelled Double Roundabout MK2
An underground reverse roundabout below a large, forward roundabout. The lanes entering are one-way. Using a reverse roundabout in parallel means that even the third exit can be reached quickly by, say, your police.
The main roundabout shown is anticlockwise. For driving on the left, this changes to the clockwise direction you would expect.
Also see the Mark 1 version (with curved corners): http://steamcommunity.com/sharedfiles/filedetails/?id=667100424
And the overground version: http://steamcommunity.com/sharedfiles/filedetails/?id=666725487
