More DLR trains to run between Canary Wharf and Stratford by next spring
Work has begun to put more trains on the line between Stratford and Canary Wharf.
It means there will be an extra 1,000 passengers able to use DLR each hour when the improvements are completed in spring next year.
The work involves double tracking the line in the section around towards Stratford to allow trains to pass.
Pudding Mill Lane station will also be redeveloped.
TfL's director of rail, Jonathan Fox, said: "This work will bring a real boost to the service enjoyed by the thousands of passengers who use this route and help to encourage even more people on to the DLR.
"In addition, when the Pudding Mill Lane upgrade project is completed and a new station with the biggest capacity on the DLR is opened, it will provide excellent access for people travelling to events at Queen Elizabeth Olympic Park."
The works will also improve connection between Stratford and Lewisham with some trains continuing through to south London after Canary Wharf.
Links will also be improved to the Crossrail service which will have stations at both Canary Wharf and Stratford.
Currently, 5,500 passengers are able to travel in each direction between Stratford and Canary Wharf. This will be increased to 6,600 next spring.
However, the track infrastructure would allow for trains every four minutes, which could see capacity rise to 10,000 passengers per hour in each direction.
However, to achieve this extra funding is required for additional trains.
Works on the improvements will begin next Tuesday.
TfL said there will be some disruption to passengers towards the end of the engineering next year but none before.