A survey by the Guide Dogs charity found that 34% of passengers with sight loss have missed trains in London because they didn't get the help or information they needed to board a train.

Passengers with disabilities often rely on staff to help them on and off carriages. But the charity found that 47% of the people surveyed said they believed staff did not have the proper knowledge on what was required. Late changes to departure platforms was also another reason given why passengers were left stranded.

The charity is calling for more training for staff:

Whilst rail is undoubtedly one of the most complex methods of travel for someone with sight loss, there are several improvements which would make a huge difference if they could be made. For example, improved training and education for customer service staff at train stations and greater awareness and understanding.

Clive Wood, Engagement Officer at Guide Dogs

The Rail Delivery Group, which represents the train operators, said the Government is spending an extra £300m over the next five years to improve accessibility for disabled passengers.

We want everyone to be able to use the railway with confidence and we are making the railway more accessible to the visually impaired by improving staff training, providing free travel to guide dog trainers and delivering 7,000 more accessible carriages in the next few years.

Dominic Lund-Conlon, Rail Delivery Group