Well, folks, it's tea-time on Sunday and for anyone involved in keeping people moving it has been a hell of a weekend. Thousands have had their journeys wrecked, tens of thousands have been delayed getting away for Christmas; and for those Londoners who feel aggrieved by the performance of any part of our transport services, I can only say that we are doing our level best.

Almost the entire Tube system was running on Sunday and we would have done even better if it had not been for a suicide on the Northern Line, and the temporary stoppage that these tragedies entail. Of London's 700 bus services, only 50 were on diversion, mainly in the hillier areas. On Saturday, we managed to keep the West End plentifully supplied with customers, and retailers reported excellent takings on what is one of the busiest shopping days of the year.

Footprints remain after people walked on the snow-covered beach at Weston-Super-Mare, England. Credit:Getty Images

We have kept the Transport for London road network open throughout all this. We have about 90,000 tons of grit in stock, and the gritters were out all night to deal with this morning's rush. And yet we have to face the reality of the position across the country.

It is no use my saying that London Underground and bus networks are performing relatively well - touch wood - when Heathrow, our major international airport, is still effectively closed two days after the last heavy snowfall; when substantial parts of our national rail network are still struggling; when there are abandoned cars to be seen on hard shoulders all over the country; and when yet more snow is expected today, especially in the north.