Commuters in south London say they're furious with TfL after being asked to avoid part of the Northern Line during rush hour, because it's too busy.
In a pilot project, Transport for London is offering advice on alternative routes, or suggesting that people walk or cycle to avoid the busy stretch between Tooting Bec and Clapham North while improvement works are carried out. Our Political Correspondent Simon Harris reports.
"During the 2012 Games many of our passengers made small changes to their journeys which meant we were able to carry record numbers without the transport network feeling any busier.
"This section of the Northern Line is exceptionally busy during part of the morning and while the modernisation of the line will help to relieve crowding when complete next year this trial will look at whether we can improve the situation now.
"By making a small change to the time they travel our passengers' journeys could be faster and more comfortable."
– Gareth Powell - TfL director of strategy and service development
Rush hour commuters are being asked not to get on the Northern Line between Tooting Bec and Clapham North - because TfL say it's just too busy.
The pilot project, which starts on Monday, will see TfL offering advice on alternative routes and asking commuters to walk or cycle instead of boarding trains on the line between 0800 and 0845 on weekday mornings.
The scheme follows similar tactics adopted during the Olympics to reduce overcrowding.