HC Deb 20 February 1990 vol 167 c607W
Mr. Higgins

To ask the Secretary of State for Transport when his Department's experiment to ascertain the effect on vehicle speeds of substituting 70 mph road signs for white circles with a black diagonal stripe took place; what the result of the experiment has been; and if he will place the data collected in the Library.

Mr. Atkins

An experiment to test the effect of 70 mph repeater signs has been carried out on a stretch of the M1 and the results are now being assessed. Initial indications are that these signs had no effect on the speed of the majority of vehicles. When a report has been prepared I shall place a copy in the Library.

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