seems as though it is intended for intersections with a primary and secondary route, with the primary route having the through lane
Right.
This sort of “hamburger” roundabout is similar
That’s another name for the “through roundabouts” I mentioned.
Note that your proposed roundabout will not be as safe as a traditional roundabout
On the other hand, there are no points where traffic has to cross/merge 2 lanes at once, like in a turbo roundabout.
Right.
That’s another name for the “through roundabouts” I mentioned.
On the other hand, there are no points where traffic has to cross/merge 2 lanes at once, like in a turbo roundabout.