§ Mr. Pawseyasked the Secretary of State for Transport if he has any plans to require all future motorways to be constructed in concrete instead of tarmacadam; and what is the life of a concrete motorway compared with tarmac.
§ Mrs. ChalkerNo. My Department is satisfied that both forms of construction are suitable. Bituminous roads are at present designed to last for 20 years and concrete for 40 years.