A stretch of the Piccadilly line will close for two weeks from Saturday for engineering works, Transport for London has announced.
There will be no service on the northernmost section of the line between Cockfosters and Wood Green until September 1 because of engineering works to get the track ready for 94 new trains set to be introduced next year.
TfL said rail replacement buses will connect both stations and also call at Oakwood, Southgate, Arnos Grove and Bounds Green.
The planned works will prepare the railway sidings for the new trains in the Cockfosters area, as well as refurbishing the infrastructure, points and crossings in the Arnos Grove area.
Separately, from 12.30am and 6am on Saturday, no service will operate between Kings Cross St Pancras and Cockfosters on the Piccadilly line.
The first new trains are due to arrive in summer 2025, and will be the first “deep level” trains on the London Underground to have air conditioning and walk-through carriages.
They will provide extra on-board capacity and an increase in peak hour frequencies from 24 to 27 trains per hour.
But because they are longer than the existing 45-year-old trains, platform edges at some stations will have to be “shaved”, creating a bigger gap for passengers boarding or alighting from the old trains to step across.
The Piccadilly line will operate a mix of old and new trains until all 94 of the new trains, part of a £3billion upgrade of the line by Transport for London, enter service by 2027.
