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Mr. Hal Miller
asked the Minister of Transport what research has been undertaken by his Department into the proportion of road accidents which is caused by inadequacy in the road environment.
Mr. Kenneth Clarke
A four-year study by the Transport and Road Research Laboratory indicated that 2½ per cent. of road accidents were attributable wholly to road environment factors. In a further 25½ per cent. such factors were present in combination with road user errors or vehicle defects.