Abstract
On 29 October 1993 the Government finally gave its consent and financial backing to the £1.9 billion extension of the Jubilee Line underground railway in London after a £400 million contribution from the private sector was secured. This extension will be the biggest addition to the underground system in London since the construction of the Victoria Line in the 1960s.
The extension will take the Jubilee Line from Green Park to Stratford in east London via the South Bank, London's Docklands and the North Greenwich peninsula (Fig. 1). Currently the Jubilee Line links Stanmore in northwest London with Charing Cross in central London. The section of the line between Green Park and Charing Cross will be closed to regular services. The line will contribute to the regeneration of the Docklands, relieve congestion on other underground lines, improve links between existing British Rail termini and bring parts of south and east London within reach of the underground network for the first time.
The extension has a total length of 15.8 km, 10.4 km of which is in twin bored 4.35 m internal diameter running tunnel. The remainder, from the portal at Canning Town to Stratford, is at the surface. It involves the construction of eleven additional stations, eight of which are underground, a new depot at Stratford and a control centre at Neasden Depot as well as an upgrade of the existing line. New station sites will be created at Southwark, Bermondsey, Canada Water, Canary Wharf, North Greenwich and Canning Town.
