A strike by London Underground staff will severely disrupt commuters this morning.
With up to three million people likely to be affected, road traffic and those seeking to travel via bus are likely to come under heavy pressure.
The Rail Maritime and Transport (RMT) union called the one-day strike in opposition to the British government's plans to bring in private engineering companies to modernise the Tube.
It has been estimated that the strike could cost the economy between £60 and £100 million sterling due to the number of workers opting to take the day off.