The fourth 24-hour Tube strike has now finished and unions are already warning that the industrial dispute could escalate in 2011.
With no agreement on the horizon, this dispute has now become the source of a political row.
In the video above, BBC London's political correspondent Karl Mercer reports on the war of words between Boris Johnson and Ken Livingstone, and he also compares industrial relations on the London Underground with the no-strike deal on the New York subway.
Stay informed with the latest travel information and get involved with BBC London. Scroll down for all useful links.
18:00: With the evening rush hour in full swing here is what
Transport for London
have to say about the Tube service:
The Circle Line is completely suspended
A 'special service' is running to all destinations on the Northern, Metropolitan, Victoria and Waterloo & City Lines.
There are 'part suspensions' on all other lines.
Travellers are also advised to check the list of station closures on the TfL website.
15:45: The Mayor of London Boris Johnson has told BBC London that there needs to be legislation to prevent any further Tube strikes in the new year.
The mayor says it is not right that 'public transport in a great city like London could be held to ransom.'
Commuters on the Tube strike
13:45: While this will be of little comfort to people who have struggled to get around London today, our Transport Correspondent
tweets that union leaders will not be recommending further strikes over Christmas. However they warn there could be an escalation of the dispute in 2011.
Once again we are trialling our
interactive Tube strike map.
You can click on various locations on the map (Tube stations, railway stations etc) to see updates from our travel news team and BBC reporters who are out and about.
You can also upload useful information and share your travel tips with the rest of London.
So, if you know of a station closure or where you can catch a bus without fighting your way through the crowds, help out your fellow Londoners by putting the information on the map.
See the following hashtags for the latest on Twitter:
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