South-east London is currently almost totally reliant on bus and rail.
However, there is likely to be some local controversy over the siting of the stations and, crucially, three deep ventilation shafts needed for the work, as they will be close to residential areas.
Some TfL insiders also remain nervous about how the project will be paid for as although it is identified as a capital scheme by the Mayor’s transport body, funding is not yet in place.