§ Mr. Ashton
asked the Secretary of State for the Environment what criteria he uses before agreeing that traffic on roads for which he is responsible shall be restricted to 30 miles per hour; what evidence a local authority has to present; 113W and what information has to be provided by local police.
§ Mr. Eldon Griffiths
Detailed criteria are set out in the circular I have sent the hon. Member. They include the accident record, the density of the frontage development, and the current speed of traffic, all of which are needed to establish whether a 30 m.p.h. limit is justified and is the right level. The police are consulted and supply the accident record.