HC Deb 14 June 1972 vol 838 cc318-9W
86. Mr. Rose

asked the Secretary of State for the Environment what is his Department's estimate of the increase of traffic on the M1 between London and the M45 and M6 turn-offs as compared with the opening of the route.

Mr. Speed

Between 1960—the first full year after opening for which information is available—and 1971 the traffic flow on the M1 section south of Luton increased by 170 per cent.