HC Deb 17 November 1983 vol 48 c545W
Mr. Marlow

asked the Secretary of State for Transport what is the purpose of the television cameras attached to lamp-posts between junctions 13 and 14 of the M1.

Mrs. Chalker

These video cameras monitored traffic behaviour on the contraflow section so that any potential dangers could be identified and as far as possible eliminated, both here and at future similar road works

Heavy goods vehicles—recorded daily flows
Hertfordshire Site Derbyshire Site
Saturday Sunday Weekday Saturday Sunday Weekday
1980
June 3,056 2,165 15,771 1,743 927 9,055
July 2,964 1,891 15,708 1,625 796 8,201
August 2,479 1,766 12,630 1,598 963 8,285
1981
June 3,051 1,810 16,890 1,541 822 9,140
July 3,003 2,022 16,597 1,461 831 8,915
August 2,988 1,904 14,264 1,782 761 8,632
1982
June 3,334 2,045 16,634 1,780 943 9,700
July 3,541 2,266 16,567 1,388 904 9,205
August 2,874 1,890 15,173 1,642 915 9,418
1983
June 3,213 2,140 16,552 1,644 1,003 9,818
July 3,607 2,280 15,876 1,520 939 7,661
August 2,744 1,939 15,065 1,564 990 8,547