TfL is due to begin introducing a new fleet of DLR trains in 2024, with all 54 new trains to have entered service by 2026.<br /><br />Of those, 33 are to replace old DLR stock, while 21 will be additional trains, delivering increased capacity.<br /><br />Among their improvements will be real-time travel information displays, air conditioning and mobile device charging points.<br /><br />TfL confirmed it has begun testing the fleet, with Arran Rusling, TfL’s head of programme for the DLR Rolling Stock Replacement Programme, saying: “We have just completed our first weekend of signalling integration testing for the new B23 DLR train, which was very successful overall. <br /><br />"Testing of the new trains will continue both in the evenings during engineering hours and during planned closures at weekends.<br /><br />“Later this year customers will start to see this train being tested between regular services, with it easily identified by its new teal colour livery and specially designed train wrap.”