asked the Minister of Transport if he will consider instructing local authorities to paint bold white lines on main roads through London to assist drivers during fog.

I have carefully considered the suggestion of the hon. Member, but I do not think that the considerable expenditure involved would be justified.

Is the Minister aware that, with the removal of the tramway track, traffic congestion in South-East London will be worse, and if he considers that it would be too expensive to provide these white lines, would he at least consider leaving one tramway line on each side of the road as a guide to traffic during fog?

That is an interesting suggestion, but I should have to give it very careful thought.