§ Mr. Russellasked the Minister of Transport what evidence he possesses that accidents involving personal injury are fewer at roundabouts than at junctions controlled by traffic lights; and if he will give full details.
§ Mr. MarplesInvestigations by the Road Research Laboratory suggest that, after making due allowance for relative traffic volume, the tendency is for fewer personal injury accidents to occur at roundabouts than at junctions controlled by traffic lights. It does not follow that at any particular junction a roundabout would be the safer form of control. In each instance the choice is governed by a number of factors, the volume and distribution of traffic and the types of accidents that have occurred being specially important.