Transport Minister Gladys Berejiklian has announced that the government will provide lift access to one platform on Redfern station, allowing disabled people and senior citizens who have trouble with stairs to get to the trains.

Meanwhile, those with disabilities, the elderly and even mums with prams who live at Unanderra have to face a set of stairs to reach the platform.

A Transport for NSW spokeswoman said Redfern was more deserving than Unanderra because it was busier.

"Redfern station is the sixth busiest station on the Sydney Trains network and is a major transport hub with around 50,000 customers passing through the station every day," the spokeswoman said.

The lift would "allow customers to access all train lines via Central station", she said.

The news that Unanderra had been overlooked again has angered Richard Kramer, a quadriplegic who uses a mouth-operated motorised wheelchair and lives near the station.

"I'm just upset," Mr Kramer said.

"It's been 20 years we've been trying to get access to a station. Before 20 years ago the trains weren't accessible enough to get on for someone like myself anyway.

"I just think it's ridiculous. Because we're a safe Labor seat we aren't going to get anything anyway."

Because Mr Kramer can't get to the platform at his local station, he has to catch a taxi to either Dapto or Wollongong stations - a $30 cost.

But he said he was lucky, at least compared to senior citizens who couldn't walk up those stairs. He said he received a 50 per cent taxi subsidy while elderly citizens had to pay the full taxi fare.

Mr Kramer said there were also less expensive options to create access to Unanderra station.

"All of us would be happy with just a level crossing," he said, "at a minimum cost."

Spinal Cord Injuries Australia's regional services manager, Alex Traill, has been part of the campaign to get lifts installed at Unanderra for a number of years.

"I don't know what Transport NSW priorities are any more," Mr Traill said.

"The people of this region always feel that Unanderra is a very highly populated area for aged people, people with disabilities and a lot of young families. We also see people lugging prams up those steps.

"We just wonder what the hell you have to do to get it accessible. In this day and age, have you seen many stations with steps like that?"

The Transport for NSW spokeswoman said "more planning and design work" would now take place to see what Transport Access Program projects would be funded next.

"Unanderra station will be considered as part of this ongoing work," she said.