The consultation into the plan to close hundreds of ticket offices in England is set to be extended for at least another month, the BBC understands.
The 21-day period for passengers to share their views is due to end on Wednesday. But chairman of Network Rail, Lord Peter Hendy, told the BBC it was "going to be extended".
More than 170,000 responses have been received, according to Transport Focus.
The plan has been met with concern from unions and disability groups.
Lord Hendy told BBC Breakfast an extension to the consultation would be "a really good thing for our customers, because the railway ought to listen to its passengers."
Posters went up in stations earlier this month, inviting the public to send in their responses.
The Department for Transport has not denied a report in the Mirror newspaper that the extension might now run into September.
The ticket office closure proposals have been put forward by train operating companies. They are under pressure from the government to cut costs after being supported heavily during the Covid pandemic, and argue only 12% of tickets are now bought at station kiosks.
Currently 299 stations in England run by train companies with DfT contracts have a full time staffed ticket office. 708 are staffed part time. Under the proposals, most would close.
The industry argues staff would instead be present on platforms and concourses to sell tickets, offer travel advice and help people with accessibility.
However, the UK's largest rail union the RMT and the TSSA union both warned the plans could ultimately lead to job cuts.
Some rail experts have also said the complicated ticketing system should be reformed before ticket office changes are introduced.
Penny Melville-Brown, a blind Royal Navy veteran who regularly uses the railway said the proposals discriminated against people living with sight loss.
She told the BBC that she relied heavily on ticket office staff at a train station as she has "no idea where to go as I don't see anything".
She added: "I don't have huge problems with making things modern and work better for everyone, but when you design new systems, you need to start designing with the people who are going to have most problems, the most vulnerable."
The disability rights campaigner has written an open letter explaining how difficult commuting would be and criticising the consultation process.
There have been threats of legal challenges to both from some disability campaigners, and from five Labour metro mayors.
But the train operating companies' body, the Rail Delivery Group, has consistently defended the proposals and the consultation.
Last week its chief executive Jacqueline Starr told the BBC the industry was listening to accessibility groups' concerns, and had taken part in a 'round table' with the rail minister.
Asked if she could promise that every ticket would still be available from machines or online, including the cheapest, Ms Starr responded: "I'm not going to make promises that that that I can't keep".
She added that the industry would work hard to make sure vending machines did offer every ticket where possible.