COMMUTERS fear being caught short in a £1billion rail upgrade which includes trains with no toilets.
The electric tram-trains will be brought in as part of “improvements” in South Wales.
But one passenger said it was “absolute madness” that the carriages will be without loos.
Rail staff admitted they were “dreading” the likely problems with the elderly, children, disabled people and drunks.
The Welsh Labour government says the new South Wales Metro project will “provide better transport options”.
Passengers needing the loo will have to get off at a station.
One commuter said it was “absolute madness”, adding: “We certainly are going backwards in Wales!”
Another added: “No public toilets at the vast majority of stations either.
“I regularly travel from Cardiff to Merthyr and also Aberdare. Both big towns and not a toilet in sight.”
One shocked commenter added: “I have a funny feeling there’s going to be lots of urine on the floor on a Friday and Saturday night.”
Transport for Wales said on-board toilets would “significantly reduce capacity” and that passengers would always be within a 20-minute journey of a loo.