TRAM services to New Addington have been suspended until next Thursday while major engineering works take place.
But Transport for London (TfL) is promising passengers will end up with a smoother ride and more reliable service.
The main work started today and trams will not be operating between Sandilands and New Addington until Sunday (December 8)
From Monday until Thursday (December 12) the service is suspended between Addington Village and New Addington.
The work at Larcombe Close curve, Coombe Lane/Shirley Hills tram crossing and down to New Addington includes track replacement, signal system maintenance, platform repaving and road resurfacing.
TfL says diversion routes for drivers are in place and replacement school and local buses in operation.
Sharon Thompson, director of LondonTramlink, said: "We are undertaking major improvement work on the New Addington branch of the network.
"The works, which are essential to ensure the continued safe and reliable service that we provide to our customers, include track replacement, systems maintenance and road resurfacing.
"We're doing everything we can to keep disruption to a minimum including working a 24-hour rota."
