Commuters on the DLR face disruption this weekend while the line is tested ahead of the Olympic Games.
Different timetables will be trialled from today until next Tuesday to allow Transport for London (TfL) bosses to see how trains will cope with the extra passengers this summer.
The DLR will serve Games venues such as the Olympic Park and the ExCeL Centre.
London Underground services will be unaffected this weekend, although an additional peak service will be tested early next month.
Jonathan Fox, director of the DLR, added: “A comprehensive programme of testing and readiness is in full swing.
“This five-day live timetable-testing will take place on the DLR to help trial a number of different timetables.”
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