Major Upcoming Improvement Works: 2026 and beyond

Planned improvement work taking place on Britain's Railway

We know that many of our customers are very interested in the improvements we can expect on our railway in the months and years to come.

On this page, we have listed details of some of the short-term and long-term railway projects in the pipeline, together with the work involved by Network Rail and others, and the benefits that we can all expect. We hope this information will whet your appetite, so we have added links to external articles so you can find out more. The information below is intended to compliment and support our future engineering work pages.

Short term midweek blockades

We know there’s never a good time to close the railway and that any cancellation of the daytime Monday to Friday service is likely to cause considerable disruption. However, for some improvement projects, closing the line for a week (or a bit longer for big projects) will get the essential engineering work done much more quickly and efficiently.

Some of the key upcoming midweek daytime engineering blockades (which may also include work on Saturday, Sunday and Bank Holidays) taking place will be published below:

Refurbishing Berrylands station

• When is the work taking place? Monday 11 May to end of September 2026

• What is the impact? Network Rail are carrying out essential upgrades at Berrylands station, to extend the life of the station and improve the experience for passengers travelling via this important suburban hub. To allow completion of the work, Berrylands station will be closed for over 4 months and trains will run through without stopping. Replacement buses will run between New Malden and Berrylands, and between Berrylands and Surbiton to provide connections to trains. Travel advice is available on the National Rail website.

• Tell me more about the work taking place: Berrylands station sits on a five-metre-high embankment with timber platforms that are no longer fit for purpose. This project will see the full replacement of Berrylands’ two timber platforms and supporting structures, which date back to the 1930s. Also, narrow sections of the platform will be widened to improve safety and accessibility, plus new platform lighting, CCTV, information screens and help points will be installed. This project will ensure Berrylands continues to serve the local community reliably and safely for years to come. More details on the work taking place are available on the Network Rail website.

Major electrification work and other improvements between Inverkeithing, Kirkcaldy and Perth / Dundee during October 2026

• When is the work taking place? Saturday 10 to Friday 23 October 2026

• What is the impact? The railway lines will be closed on various dates between Inverkeithing, Kirkcaldy and Perth / Dundee this October. This will have a disruptive impact on journeys on the Fife Circle, and also on longer distance journeys between Edinburgh and Perth, Dundee, Aberdeen and Inverness. From 10 to 19 October, no trains will operate between Inverkeithing and Markinch via Kirkcaldy. Trains may be diverted onto the line via Dunfermline City and Cowdenbeath, which will remain open during the engineering work, or will be cancelled. To serve stations on the closed line, a replacement bus service will operate between Inverkeithing and Markinch, calling at Dalgety Bay, Aberdour, Burntisland, Kinghorn, Kirkcaldy, Glenrothes with Thornton. From 20 to 23 October, no trains will operate between Markinch and Perth / Dundee, trains will be diverted or replaced by buses. Detailed travel advice can be found on the National Rail website.

• Tell me more about the work taking place: Network Rail will be carrying out a major programme of engineering to help prepare the railway for electrification. The work is part of the Scottish Government's £311.5m investment to electrify 118km of the Fife Circle route and introduce new battery-electric trains.

  Engineers will carry out bridge replacements, track and signalling upgrades, and other improvements in the area. The bridges at Bennochy Road in Kirkcaldy, Muriespot bridge near Coaltown of Balgonie, and Main Street in Thornton will be demolished and rebuilt. Teams will also upgrade the bridge on Cardenden Road in Cardenden, make track changes, install foundations and structures for electrification equipment, and carry out extensive signalling upgrades.

  More comment on this project is available on the Network Rail website.

Brighton Main Line will be closed for 9-days south of Three Bridges during February 2027

• When is the work taking place? Saturday 13 to Sunday 21 February 2027

• What is the impact? The railway lines will be closed for 9-days between Three Bridges and Brighton / Hove / Lewes via Haywards Heath. This is to allow Network Rail to carry out a number of very significant and large pieces of engineering work which cannot be done over regular weekend closures.

  This major programme of work has been timed to take place over the half-term holidays for most schools, when fewer people travel.

  More information about the impacts of this engineering work on your journeys, including details of the replacement bus and diverted train services that will be running, will be published later this year.

• Tell me more about the work taking place: Details will be published here and on the Southern website when available.

Longer Term Railway Improvement Projects

High Speed Two (HS2)

Once operational, HS2’s British-built bullet trains will provide zero-carbon journeys between the UK’s two largest cities, Birmingham and London, with services continuing on to Manchester, the North West and Scotland using the conventional railway network, cutting journey times.

Each train will be 400 metres long and will carry up to 1,100 customers. There will be up to 14 trains per hour in each direction.

Twice the length of Crossrail, HS2 is the first new intercity railway to be built north of London in over a century. Construction of the line is well underway, with 30,000 jobs supported by the project and over 3,200 UK-based businesses helping to build it.

Comprising 140-miles of track, four new state-of-the art stations, two depots, 32 miles of tunnel, and 130 bridges, HS2 will leave a legacy of environmentally responsible travel, economic regeneration and technological innovation for generations to come.

More details on this project are available here.

East West Rail

The communities between Cambridge and Oxford currently suffer from a lack of east-west transport options, to link their vibrant communities, universities and businesses.​​​​​​​ East West Rail is a major infrastructure project which will deliver these much-needed connections. It will bring faster journey times and lower transport costs, easing pressure on local roads.

The East West Rail line already has its first part in place following construction work between Oxford and Bicester.

Further services will be introduced in three 'Connection Stages':

Connection Stage 1: Oxford to Bletchley and Milton Keynes. The project began by rebuilding the Bletchley flyover back in 2021. Since then 66 kilometres of new track has been laid, plus the installation of signalling, testing and the construction of Winslow station. Passenger services between Oxford, Oxford Parkway, Bicester, Winslow, Bletchley and Milton Keynes Central will be operated by Chiltern Railways.

Connection Stage 2: Oxford to Bedford. This will involve an upgrade of the existing Marston Vale line between Bletchley and Bedford. It has been announced that work on the Marston Vale Line will be accelerated in order to accommodate one train per hour between Oxford and Bedford from 2030.

Connection Stage 3: Oxford to Cambridge.  Planning is underway for the final section between Bedford and Cambridge, which will cross the East Coast Main Line.

More details on this exciting rail development can be found on the East West Rail website.

South Wales Metro

Work has started on Metro, a modern integrated public transport which will transform travel in South Wales. Construction, engineering and infrastructure work is underway to upgrade the rail network so that it’s ready for Metro.

Work involves:

• electrifying around 170km of track

• upgrading all the stations and signalling in the Metro network

• building at least two new stations.

The railway lines to Aberdare, Coryton, Merthyr Tydfil, Rhymney and Treherbert are being upgraded. These lines are also known as the Core Valleys Lines and they’ll become an important part of the South Wales Metro.

Details of the disruption being caused by the transformation work can be found on the Transport for Wales website.

Transpennine Route Upgrade

The Transpennine Route Upgrade (TRU) is a major, multi-billion-pound programme of railway improvements which will bring better journeys to passengers travelling across the Pennines between Manchester, Huddersfield, Leeds and York.

TRU will transform the Transpennine main line into a high-performing, reliable railway, bringing more frequent, more reliable, faster, greener trains. The size of the project does mean that there will be planned disruption to services so the work can be delivered.

The benefits will include:

• Faster journeys - the fastest journey times are forecast to be 63-66 minutes between Manchester and York and 41-42 minutes between Manchester and Leeds

• Greener travel - the whole route will be electrified to enable greener trains to run, reducing the carbon footprint and improving air quality

• More reliable journeys - the railway will be made more reliable by re-modelling track, installing a new signalling system and upgrading bridges to bring you smoother, on-time journeys

• Better stations - improving stations on the Transpennine route, bringing you a better travel experience through improved, more accessible stations

• More trains - the improvements will enable more trains to run between Manchester, Huddersfield, Leeds and York with up to six fast services every hour between Leeds and Manchester and up to two stopping services for local connectivity

More details on this amazing rail development can be found on the Transpennine Route Upgrade website.

Bristol To Portishead Line Reopening

The original line between Bristol and Portishead was closed for passengers in 1964. But when the line is restored, it will reconnect more than 50,000 people to the railway.

The restored railway will provide an hourly direct train between Bristol Temple Meads and Portishead in 25 minutes, cutting travel times in half and reducing car commuting. The route runs along one of the most scenic stretches of railway in the country, through the Avon Gorge and past the Clifton suspension bridge.

The railway still exists from Bristol through Pill to Royal Portbury Docks, but only for freight. Three miles of railway from Pill to Portishead need to be rebuilt, new stations at Portishead and Pill need to be built and signals will need to be installed.

The core work is underway and will continue until the line is restored in 2028. Ecology work has already taken place to ensure species living near the railway are protected, such as toads and bats. A project page can be found on the Network Rail website.

All Planned Engineering Work

Details of all the planned engineering work (including other midweek work as well as at weekends and overnight) for approximately the next 12 weeks is available on our Status and Disruptions page. Use the calendar to search for the dates you want to look at.