The Barton Highway is a step closer to duplication after the New South Wales Government agreed to put money towards a new plan for the road.
Around $150,000 will fund half the study, which will assess the priorities along the stretch of highway between Yass and Canberra.
NSW is calling on the new Federal Government to match the funding.
Yass Valley Council general manager David Rowe says the study will provide a blueprint for a new dual carriageway road.
"It should be a strategic document that really outlines the steps towards duplication, the sorts of things that haven't been done to date and what the triggers might be, so that as soon as some money becomes available all the information's on the table to proceed," he said.
Mr Rowe says the highway has had a substantial increase in traffic since 2006, but little has been done to keep up.
"We hope it does get some progress happening on the Barton Highway in terms of duplication," he said.
"[The] council's frustration and the frustration of all local residents has been that there's just no activity on the highway towards duplication in the last few years."