Many commuters switched to using the capital's bike hire scheme to get to and from work.
Barclays Cycle Hire journeys were up by 50% yesterday, with almost 30,000 hires.
The same trend has been seen today, with over 11,000 hires by 10am.
Transport for London are operating a limited service on most tube lines, but they advise to check before you travel.
Union leaders were under pressure tonight to call off the strike after it emerged new peace talks would take place on Friday.
Bob Crow has told ITV News that he does not use ticket offices at London Underground stations.