>has an excellent safety record, since traffic moves too slowly to do serious damage in the event of a collision.

I guess that's another way to prevent accidents. Confuse and slow people down so much that if accidents do happen, they happen at 2km/h.

Also known as traffic calming: https://en.wikipedia.org/wiki/Traffic_calming

What about it?

(As a former Swindon resident who used to cycle across it with an E-flat tenor horn strapped to the rack, I don't really have a problem with it)

I just wanted to show it to people who have not seen it before. It is a marvellous invention :D

No, single roundabouts are annoying enough. Give me a stop light or a 4-way stop.