The ongoing East London Line Phase Two Project to connect Surrey Quays with Clapham Junction will be split into three work packages to meet its deadline of May 2012, prior to the Olympic Games.
Work package 1, the biggest of the three packages, involves building a 1.3km line to connect the East London Line Phase One route to the existing rail infrastructure.
Work package 2 involves constructing a rail line to connect Old Kent Road Junction to the existing South London Line near South Bermondsey station.
Work package 3 involves removing the existing lineside equipment at Clapham Junction to reinstate a former platform.
London Transport will complete package 1, while Network Rail will complete packages 2 and 3.
The total work under Phase Two of East London Line will complete the London Overground network and create an orbital railway around the capital.