Here‘s an example of how they are handled in Germany: https://goo.gl/maps/cmLVxuhViyF2 https://goo.gl/maps/cmLVxuhViyF2 The space it requires is not much bigg

Here‘s an example of how they are handled in Germany: https://goo.gl/maps/cmLVxuhViyF2 https://goo.gl/maps/cmLVxuhViyF2 The space it requires is not much bigger than the traffic light. That town replaced many of its intersections with roundabouts even in central and older parts of the city. (You might say they went a little overboard with it, looking at the southern limits near that hospital.)