Those with hidden ailments will be able to wear the new “please offer me a seat” badges around the Tube, allowing other passengers to identify their need, without the user causing a fuss.
More than 1,200 people tested the new badges to check their usefulness. 72 per cent of journeys were said to be easier as a result.
Mayor of London Sadiq Khan said: “I’m proud that Londoners embraced this innovative trial and that Londoners wearing the badges found traveling around our capital easier as a result.
“It’s great news that next year we will be able to offer them to all those with hidden disabilities and conditions, and I’m really looking forward to the blue badges becoming as recognisable on public transport as our hugely successful baby on board ones.”