Detailed images have been published of the trains that will run on Crossrail.
Mayor of London Boris Johnson unveiled the designs of the Bombardier-built vehicles.
When fully open in 2019, Crossrail will add 10% to London’s rail capacity, and is expected to carry 200M passengers each year.
Each 200m-long train will provide space for 1,500 customers in nine fully-interconnected, walk-through carriages.
Features will include intelligent lighting and temperature control systems as well as the ability to regenerate electricity back into the power supply when braking to use up to 30% less energy.
Free Wi-Fi will be available on trains and platforms, and people will have access to 4G.
There will be four dedicated wheelchair spaces on each train.
Johnson said: “It’s fantastic to think that these sleek new trains will soon be transporting millions of people across our great city and beyond.
“They’re feature packed, eye-catching machines that showcase the best of British design and engineering.
“They’ll add vital capacity to our rail network and will help to ensure our economy continues its onward journey full-steam ahead. The largest construction project in Europe is another tantalising step closer to becoming a brand new working railway for the capital.”