Large parts of the Tube and rail networks close completely, and some commuter lines remain out of action for up to 11 days this year.
There will be no Tubes, trains or buses on Christmas Day, with a much-reduced service returning on Boxing Day.
The Metropolitan and Jubilee line will be shut down on 26 December, with station closures on six other lines - including Northern, Central and Hammersmith & City.
A Saturday service will run on the Underground until New Year's Eve, when there is free travel throughout the night, although 15 stations will be closed or have limited opening. Visit www.tfl.gov.uk for more information.
Caroline Pidgeon, the Lib-Dem London Assembly transport spokeswoman, said: "TfL and the Mayor need to work together to ensure that our transport doesn't come to a halt. It's difficult because work needs to be done on the Tube and rail network but we need more help for businesses and shoppers in London."
More on this story can be seen at http://www.thisislondon.co.uk/standard/article-23607212-details/Don%27t+let+travel+network+go+to+sleep+over+the+holiday/article.do
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