At the NSW Roads and Maritime Services' display at Centenary Hall earlier this month, Albion Park resident of 47 years Rae Hazelton thought changes to traffic flow could affect the number of motorists using Tongarra Road.

"All the traffic from Terry Street will be coming along Tongarra Road," she said.

"To us, the problem at Albion Park Rail has been brought to Albion Park."

She also believed the road could exacerbate flooding.

"It already comes up to people's fences," she said.

Fellow resident Steve Burgess was also concerned about noise from the new road, especially if planners decided to raise the new highway above the town.

"I can hear the traffic from Albion Park Rail now, but it's going to be flying through the air - they don't have a plan for how they are going to accommodate this yet," he said.

Jamberoo resident Ruth Leeder, who shops at Albion Park and Shellharbour, said she was concerned about road access during construction, while Albion Park Rail resident Bill Williamson thought the road would have a lot of good aspects once it was finished.

"We've just got to live long enough to see it," he said.

"Or we might have our licences taken off us - they'll probably say, 'get off the road' by then."

RMS senior project manager Ian Archer said the purpose of the display was to inform the community of progress so far and gather feedback to factor into the concept design and environmental assessment, which would include flood modelling.

He said more than 400 people had visited the display.

"Most people say they just want the thing built, but they also want to know, 'how's it going to affect me?'," he said.

Mr Archer said it could be three to six years before the RMS is ready to call for tenders.

For more information or to submit feedback, visit rms.nsw.gov.au/roadprojects/projects/princes_hway/albion_park.