HC Deb 22 November 1966 vol 736 c283W
Sir R. Russell

asked the Minister of Transport if she will now have an investigation made into the cost and practicability of the plan put forward by Mr. A. E. T. Matthews at the recent International Road Federation Conference, a copy of which has been sent to her, for a system of motorways in tunnels to relieve traffic congestion in London and other cities.

Mrs. Castle

Yes, an investigation is already in hand.