If you travel on the Victoria line, one of the most obvious changes you'll have noticed is that all trains are new and the new signalling system allows trains to run faster and more frequently.
From January 2013 we've been operating up to 33 trains an hour - meaning they are less than two minutes apart at peak times. This is one of the highest frequency lines on the London Underground and in the UK. For the Victoria line it allows us to carry about 10,000 more passengers an hour overall.
Our new trains are bigger and more comfortable with wider aisles and doors, and higher ceilings.
They also have dedicated spaces for wheelchairs and security features like CCTV in every carriage and push-button emergency alarms connecting directly to the driver.
They're equipped with regenerative braking technology, which means energy is returned to the rails to be used by other trains, rather than adding to heat in the tunnels.
Platform humps have now been installed at all stations on the Victoria line (except Pimlico). These provide level access with the trains, meaning easier journeys for customers with mobility impairments, luggage or pushchairs.
Finsbury Park station
As part of the Tube Improvement works, both spiral staircases at Finsbury Park station will be refurbished, in order to double their capacity.
To carry out this work, the staircases will be closed to the public from Monday 19 August until the end of March 2014. These improvements will reduce congestion at the station.
Green Park station
Green Park station has been renovated. The station now has step-free access to all platforms, and between all lines. Platform humps provide level access to trains.
Above ground, the new, ramped station entrance provides direct access from Green Park.
Highbury & Islington station
We have refurbished one of the two escalators at Highbury & Islington and work on the remaining machine will continue until mid-October.
Both these 45-year-old machines had reached the end of their useful life, but by working on one escalator at a time, we've been able to keep the other running in the 'up' direction. This has allowed us to keep the station open.
If you are entering the station on weekdays between 08:00-09:30 or 17:00-18:30, one entrance/exit will be for the Victoria line/National Rail platforms and the other for the London Overground platforms. These will be clearly signed.
To change, in either direction, between London Overground services and the Victoria line/National Rail platforms, you must touch out on one gateline, exit the station then touch in on the other gateline. This route will be clearly signed and your Oyster card will not be charged twice. If you are not travelling via Zone 1, you should continue to also use the pink route validators on the London Overground platforms as usual.
At other times the entrance to the station will be via the ticket hall and you will be able to change between lines without exiting the station.
King's Cross St. Pancras station
In 2010, we completed a massive redevelopment of King's Cross St. Pancras that quadrupled the size of this important station.
It already sees more passengers a year than Heathrow Airport with more than 100,000 people passing through the station at peak times every day.
King's Cross St. Pancras is now modern and spacious, has step-free access to all lines, and is less congested thanks to new ways to enter and exit the station.
If you've been to Victoria station lately, you may have noticed that it's busier than usual as we're doing a great deal of work at the station.
It's a really exciting project that'll mean fewer delays, less congestion, step-free access and quicker journeys in and out of the station.
There's a lot to be done before we finish work in 2018, so please bear with us.