HC Deb 18 December 1973 vol 866 cc300-1W
Mr. Cormack

asked the Secretary of State for Trade and Industry whether he will take immediate steps to impose a 30 m.p.h. speed limit on all heavy commercial vehicles in order to conserve fuel Stocks still further and to avoid the hazards created by large lorries crowding small cars on the roads.

Mr. Tom Boardman

I do not accept that there would in fact be any fuel saving if a 30 m.p.h. speed limit were to be imposed on heavy commercial vehicles. Most of the roads in this country are not flat and even in the run up to a small incline these vehicles could be involved in more gear changing if they were restricted to 30 m.p.h. and this, in turn, would lead to increased use of fuel.

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