HC Deb 24 October 1973 vol 861 cc508-9W
Mr. Alan Williams

asked the Secretary of State for the Environment what statistical evidence there is of the relative safety of the experimental mini-roundabouts compared with traditional roundabouts; and if any conclusions are available about the traffic flows which both can handle.

Mr. Peyton

It is too soon after the introduction of mini-roundabouts to publish any reliable statistical evidence on the relative safety of these roundabouts. It is estimated that at sites converted from traditional roundabouts to mini-roundabouts there has been a 30 per cent. increase in traffic capacity.