The London Underground’s Circle Line is to be extended to Hammersmith in an effort to improve services.
From December, trains will start from a fixed terminus at Hammersmith and run along the Hammersmith & City tracks through Shepherd’s Bush to Edgware Road.
It will then join the current Circle route to Liverpool Street and Victoria, then back to Edgware Road afer a single loop.
It is the first phase of the Sub Surface lines upgrade, which will include a fleet of air conditioned trains and a new signalling system.
London Underground spokesman Howard Collins said: "The Circle Line shares tracks with the District, Hammersmith & City and Metropolitan lines and if there are service problems the Circle line inevitably becomes disrupted.
"The changes to service patterns on the Circle Line will improve the reliability of the line, enabling services to recover more quickly if there is a disruption.
"It will still be called the Circle Line and shown as a circle on the Tube map but with the additional extended service out to Hammersmith.
"The added benefit will be the improved service on the Hammersmith & City Line from Edgware Road round to Hammersmith, almost doubling the frequency on that route."
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