Transport for London (TfL) will roll out new trains, introduce step-free upgrades and improve mobile connectivity to modernise journeys and make the network more accessible for everyone.
One of the headline changes will be the arrival of a new fleet on the Piccadilly line.
TfL says the 94 new trains will offer air conditioning, walk-through carriages and improved accessibility.
They will replace trains in operation since 1975 and are expected to enter service from mid-2026.
The Piccadilly line upgrade is part of a wider £2.9 billion modernisation programme.
Capacity through central London will increase from 24 to 27 trains per hour during peak times.
Other lines are also seeing improvements.
The Four Lines Modernisation programme covers the Circle, District, Hammersmith & City and Metropolitan lines.
Passengers are already seeing quicker journeys thanks to signalling upgrades between Stepney Green and Upminster.
The next section to come into service will be on the Metropolitan line between Finchley Road and Preston Road in mid-2025.
Step-free access remains a priority.
Colindale became the 94th step-free station in December 2025 with a new lift and ticket hall.
Leyton station is currently being upgraded to improve accessibility and is due for completion in spring 2027.
On the digital front, Transport for London and Boldyn Networks are working to deliver full 4G and 5G mobile coverage across the Tube, Elizabeth line, DLR and Overground.
Coverage is already available on large sections of the Bakerloo, Central, Jubilee, Northern, Piccadilly and Victoria lines.
In 2025 we will be delivering coverage on the subsurface lines.
Other long-term projects are also moving forward.
A new entrance and ticket hall at Elephant & Castle will increase capacity by more than 30 per cent and deliver step-free access.
Passenger tunnel works start in 2026 and are scheduled for completion in late 2027.
Plans are also in place to improve South Kensington station with step-free access and a larger ticket hall.
The full programme of works is intended to create a more accessible, efficient and digitally connected transport network for London.
