London had snow on Sunday 10 December 2010, which was predicted at least a day before by several weather forecast channels (Google, BBC, etc.). While the debate is open weather the snow was severe or not, I do not think it was considered as exceptional, the Mayor of London did not post anything on his facebook page about this topic.
On Sunday, I traveled thru London and did not see any gritting on any roads or pavement. I live next to North circular road which is a main roads serving the city, and no sign of salt or sand whatsoever. The traffic had to go on snow which finally melted later during the day. Is there any reports available on how many accidents were caused by road conditions, and specifically caused by snow or ice? Oxford tube service was suspended due to "unsafe road conditions". What is the economical impact of people not be able to use transport, and for companies for stopping their business because of weather conditions? Planes and many other transport were deeply affected.
Similar for pavement conditions which were not gritted: how many accidents happened and what is the financial impact?
Piccadilly tube was also suspended for part of the line, and there was severe delays on most of the network. While it is understandable that some equipment may stop working, it is still hard to believe that a few centimeters of snow can cause major damage to TFL electrical equipment, and that there is no backup solution apart from suspending the traffic. Many people are working on Sunday and rely on public transport. The impact would have been much higher if this happened on a weekday and near Bank or London bridge area, but I suppose many workers from private and public services can afford a private driver, or a black cab.
Basically, I see a evident lack of service from the city, for a weather event which was, or could have been somewhat next to nothing. My tax seem to be more useful to pay for fancy fireworks than for being able to commute safely in Winter.