§ Mr. Rookerasked the Secretary of State for the Environment if he has approved any experiments involving resurfacing of motorways to bring about a reduction in surface/tyre noise.
§ Mr. CarmichaelA short length of surfacing has been laid on Ml, near Watford Gap.
§ Mr. Rookerasked the Secretary of State for the Environment if he will make a statement on departmental research into quieter road surfaces.
§ Mr. CarmichaelStudies are in progress to develop quieter surfaces which retain the advantages of skid resistance, spray control and longevity.
§ Mr. Rookerasked the Secretary of State for the Environment how many miles of motorway have been resurfaced during each of the past three years.
§ Mr. CarmichaelAs follows:
1972–73 55 miles 1973–74 50 miles 1974–75 53 miles
§ Mr. Rookerasked the Secretary of State for the Environment how many miles of motorway will be resurfaced during each of the next three years.
§ Mr. Carmichael1975–76 —91 miles. Lengths of road to be treated beyond this date cannot be given precisely. The overall length to be treated in 1976–77 and 1977–78 will probably be much the same as that for 1975–76.