This roundabout is known by the local residents as ‘the Magic Roundabout’ ,after a well known children’s TV program in the UK. On first appearance it appears ridiculously complicated but is in fact quite easy to use and has remained essentially unchanged for many years. The link is worth watching if you are running out of ideas as to how to design a multi legged intersection.
https://www.wired.com/video/see-how-an-insane-7-circle-roundabout-actually-works
Traffic Calming Blog 
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