HC Deb 25 January 1967 vol 739 c312W
Mr. Ian Lloyd

asked the Secretary of State for the Home Department what information he has on the number and percentage of vehicles which at present fail to observe the fixed speed limits imposed on the M4 between London Airport and central London.

Mr. Roy Jenkins

Of 3,995 vehicles counted during a recent check on the level section, 480 or 12 per cent. were exceeding 70 m.p.h.; 183 or 4.6 per cent. of the total were exceeding 74 m.p.h. In a check of 1,217 vehicles on the eastbound carriageway counted during the morning peak 66, or 5.4 per cent. were exceeding 70 m.p.h.; of these 25 or 2 per cent. were exceeding 75 m.p.h.