A passenger on the Severn Beach train line through Bristol says the service is so bad they're often left stranded.
Ashley Bridle told ITV News the vast majority of services he relies on end up delayed or even cancelled.
Mr Bridle kept a week-long video journal documenting his experiences using the Severn Beach line.
He says some services were running 20 minutes late which affected later trains. He also says a service to Avonmouth was cancelled entirely.
Mr Bridle is looking for a job and relies on the train to get to the job centre. He says even a small delay can cause problems.
The line runs from Bristol Temple Meads to Severn Beach, stopping at small stations along the way.
Some passengers claim that if the service is running late it will terminate at Avonmouth, forcing them to make their own way to Severn Beach.
Services along the line were upgraded earlier this month with the introduction of new turbo trains.
But Mr Bridle says services are less reliable since the changes.
GWR said in a statement they attribute the delays to the new system but are expecting services on the line to improve soon.