Adelaide residents along the North-South Corridor say they are tired of the uncertainty around the project.
Some West Hindmarsh residents have been contacted with updated acquisition notices, with new plans for the project expected to be released this week.
George Czerwinski has lived in his home for 41 years and was previously told his whole property was to be acquired.
Then he received a letter last week stating while his property was no longer "completely" required, there would still be some impacts.
He said he was told only part of his backyard would now be needed.
The 71-year-old said that was cold comfort because the plans will impact the value of his home.
"Now we have to find out how much that part is going to be and if there's going to be any compensation for it," he said.
Mr Czerwinski said the ongoing uncertainty had been stressful.
"It's frustrating, you really don't know how to live your life and you don't know where you're going," he said.
Mr Czerwinski said "we just want some answers".
"In my view I've got no choice really, I've got to get out of here," he said.
"I've got to get the right compensation."
Opposition infrastructure spokesman Vincent Tarzia said the "vague details" in correspondence with impacted residents was "not good enough".
"What people need here is certainty," he said.
Mr Tarzia also said for the government to release plans "in the lead-up to Christmas is simply not good enough".
"They're only doing it because they know there's so many other distractions happening in our state at the moment," he said.
A government spokesperson said the process of contacting affected individuals was underway and they would be making "no further comment" on those plans in the meantime.
"We've always said we would be informing affected residents and businesses as a first priority once we had completed our review, and that is what we are doing," the spokesperson said.
"Residents along the North-South corridor deserve to hear from the government first about how our plans will affect them."
