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London Victoria track and signalling upgrades

We’re working on a major four-year package of upgrades to modernise 1980s track and signalling on the lines into London Victoria station.

Aerial view of London Victoria station
Victoria station signalling upgrade

The upgrades will improve reliability on the network, helping even more passenger and freight trains arrive at their destinations on time.

The installation of the new equipment will see signalling control of the area moving from the Victoria Area Signalling Centre to our new state-of-the-art centre Three Bridges Rail Operating Centre.

The first phase of work, to take place at weekends between London Victoria, Clapham Junction and Balham, and the West London Lines from Clapham to Shepherds Bush, got full underway in 2021 and will continue until after Christmas 2022.

Upgrades between Tulse Hill, Peckham Rye and Crystal Palace, and between Herne Hill, Nunhead, and the Battersea area will follow between 2022 and 2025.

Phase 3 – London Victoria to Clapham and Balham, 2020 to 2022

Work on this phase of the project is now underway and involves:

  • Replacement of all signalling equipment in the Clapham and Balham areas, and lines into London Victoria.
  • Relocation of signalling control for the area from Clapham, to the state-of-the-art Three Bridges Rail Operating Centre (TBROC).
  • Upgrade of track at key junctions surrounding Clapham and Balham with new, more reliable equipment.
  • A new and improved track layout will be installed between Clapham and Victoria stations, improving line speeds and reliability.

Upgrades to track and signalling on other South London lines will follow:

  • Tulse Hill to Peckham Rye and Crystal Palace – 2022 to 2024
  • Battersea (Stewarts Lane) to Herne Hill, Nunhead and Ravensbourne – 2023 to 2025.


Improved reliability and performance of trains in South London and the wider region

  • The new, modern equipment will mean fewer faults and fewer delays for passengers travelling on lines into and out of Victoria.
  • Relocating the signallers for the area to the state-of-the-art Three Bridges Rail Operating Centre will help them work as a team get trains back on time when an incident occurs.
  • The new equipment installed will be easier to maintain, fix and find faults when something does go wrong.
  • New turnback facilities at Clapham and at Balham, will help signallers keep more trains moving during planned engineering work and, when disruption on the railway.

Capacity uplift for the future

  • The improvements will allow an uplift in train services between Clapham Jct and London Victoria in the future.

Victoria to Clapham and Balham upgrades in numbers

Growing investment icon

£160m investment in signalling, track, civils, power systems and telecoms

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93 new modern LED signals

Railway track points icon

8 key junctions and 50 renewed points to achieve greater track reliability and minimise disruption

17 new, easier to maintain signal gantries

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3 new power systems for the signalling and points heating equipment

Signal monitoring displays icon

Re-control to the Three Bridges Rail Operating Centre – state-of-the-art signalling centre allows signallers to get trains back on time more quickly.

How will journeys be affected by the work?

There will be changes to journeys to support the deliver of the work.

  • Saturday 24 to Sunday 25 September
  • Saturday 15 to Sunday 16 October
  • Saturday 29 to Sunday 30 October
  • Saturday 26 to Sunday 27 November
  • Sunday 25 December 2022 to Tuesday 3 January 2023. 

Further dates will be added as and when they are confirmed.

Changes for some of the above dates may not yet be showing in journey planners or on our planned engineering works page. Please check again closer to your travel date.

How will this affect my journey?

Most trains will be diverted to London Bridge, and limited rail replacement bus services will run between East Croydon or Balham and Clapham Junction for local journeys.

To help you with your journey, tickets will be accepted on the following routes:

  • South Western Railway between Clapham Junction / Vauxhall and London Waterloo London
  • Buses between: London Victoria and Clapham Junction Balham and Streatham Hill
  • Tube services between: London Victoria and Balham / Clapham Junction / Vauxhall / London Bridge / Euston London Bridge and Canada Water
  • London Overground between Canada Water and Clapham Junction / Crystal Palace / West Croydon and between Clapham Junction and Watford Junction via Willesden Junction
  • London Northwestern Railway between London Euston and Watford Junction / Milton Keynes Central.

Planned and unplanned closures may affect alternative routes. Please check other operators’ websites for up-to-date information.

Please follow the latest Government advice and always check every journey before you travel at National Rail or the Southern Railway website.

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Managing the impact of our work on our neighbours

We hope this information is helpful and apologise for any inconvenience these essential works may cause.

However, if you have any additional questions or concerns, please telephone our 24-hour national helpline on 03457 11 41 41 quoting Victoria resignalling project.

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