§ Dr. CableTo ask the Secretary of State for the Environment, Transport and the Regions what is the most recent road research evidence evaluated by his Department on the impact of traffic calming measures, with particular reference to road humps, on road deaths and injuries in(a) roads subject to calming and (b) surrounding road systems. [27474]
§ Ms Glenda JacksonThe Transport Research Laboratory conducted a review of traffic calming schemes in 20 mph zones and published their findings in September 1996 (TRL Report 215). Road hump type measures (round top humps, flat top humps, raised junction tables and speed cushions) amounted to 96 per cent. of the measures installed. The research found that injury accidents were reduced by around 60 per cent. and child injury accidents by 67 per cent. It was also found that there was no apparent overall accident migration on to surrounding roads.