Question to the Department for Transport:

To ask His Majesty's Government what plans they have to review the (1) design, and (2) safety of major roundabouts with multiple lanes, entrances and exits.

Whether a roundabout is suitable for any location is entirely a matter for the relevant highway authority to decide upon, taking into account local factors including safety. They are also responsible for reviewing any such installations should concerns arise. National Highways publishes detailed advice on the design of roundabouts in the ‘Design Manual for Roads and Bridges (DMRB)’. Use of DMRB is mandatory for the Strategic Road Network, but is available as guidance for all highway authorities.