I accept that, but I suggest that the control of the flow of traffic should be at the exit from the motorway. The hon. Member has already spoken of the tapering of the exit from the motorway, which has been agreed, from three lanes to two. I see no compelling reason why this should not be reduced to one lane if it were found that two lanes led to impossible traffic congestion.

It is right to use the exit of the motorway to control the traffic and ensure that the flow is not colossal further in towards the centre of London, so causing major traffic jams in my Constituency, which will tend not only to cause the motorway traffic to spill over into residential side roads but to make local journeys difficult for local drivers. I hope that my hon. Friend the Under-Secretary will bear these points in mind.