Extensive disruption caused by the part-closure of one of London's busiest railway stations over the Christmas period could affect as many as 12 million trips, rail authorities have warned.
Travel chaos is predicted just in time for the traditional Christmas getaway, with cancellations between December 20 to January 4, when Southern and Thameslink trains will no longer call at London Bridge.
And from December 22-24, some Southeastern Charing Cross services will not call at London Bridge in the morning peak.
The planned service disruptions will allow engineers to open two new platforms and modernise nearby track and signalling equipment as part of the £6.5 billion Thameslink works programme.
"In the longrun our work here will improve the journeys of millions of passengers across the south, but we understand that until we've finished some people may have to change their journey to or from London," Thameslink programme director Simon Blanchflower said.
"We've worked very hard to make sure there are alternative routes so please plan ahead and find one that works for you."
Plans for the 178-year-old station - London's oldest surviving rail terminus - include a new concourse that will be bigger than the pitch at Wembley.
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