For an at-grade intersection of multi-lane roads, the "Turborotonde" (Dutch language Wikipedia article) or "Turboplein" (Dutch language wegenwiki article) is an alternative to the multi-lane roundabout:
Or the larger turboplein:
Compared to a classic multi-lane roundabout:
For an at-grade intersection of multi-lane roads, what are the (dis)advantages of a "turborotonde" compared to a classical roundabout? It would appear that the turborotonde should be safer, but it may be that there are disadvantages too. For example, it appears not (legally) possible to turn around (full circle). What are other disadvantages compared to a classic roundabout?