Andrew P Smith wrote:
In article , Helen Deborah
Vecht writes

I think there's a similar one in Hemel Hempstead....

No, that's just 5 mini roundabouts in close succession similar to
those outside Hatton Cross tube station.

IIRC there are 6 mini roundabouts, placed around a central island. This
is an exactly similar configuration to the Swindon one, except that
Hemel has 6 roads entering instead of 5, and the central island is
bigger.
--
Richard J.
(to e-mail me, swap uk and yon in address)