HL Deb 04 November 1999 vol 606 c106WA
The Marquess of Ailesbury

asked Her Majesty's Government:

In what percentage of cars which enter London on the M.4 is the driver unaccompanied. [HL4200]

Lord Whitty

Video data of the traffic using the M.4 between Junction 3 and the elevated section has been analysed by the Transport. Research Laboratory to assess vehicle occupancy.

The results show that on average, 80 per cent of cars entering London via the M.4 appear to contain only the driver.