A Glenrothes campaign group calling for safety improvements to the A92 says it is “disappointed” the project was overlooked in the Edinburgh City Deal.
Dr Bob Grant, the chairman of the Glenrothes Area Futures Group, said he and fellow members are prepared to act with “vigour” should there be no upgrades to the route.
He was speaking after the the £1 billion deal was signed, promising to create jobs and attract millions of pounds of investment to Fife.
However, dismayed that improving the A92 at Glenrothes has not been allocated funding as part of the deal, Mr Grant said: “We are disappointed but not surprised.
“The A92 campaign has been going since 2007 and we have had support and encouragement from successive transport ministers, but had no action.
“What is it going to take to make people react? What sort of accident has to take place?”
Members of the Futures Group met Transport Minister Humza Yousaf earlier in the year, with Mr Yousaf promising to visit the site this year.
While optimistic of action resulting from this, Mr Grant added: “We will have that meeting and if nothing comes from it then I think we will be reacting with vigour.”
As a trunk road, the A92 is the responsibility of Transport Scotland, a Scottish Government agency.
A spokesperson said that while the City Deal scheme had not targeted cash for the project, upgrades would be considered by the agency as part of its own review process.
He said: “We fully recognise the important role that the A92 plays in supporting the economy of Fife and we have made it clear that it will be considered within the review of the Strategic Transport Projects Review.
“Fife Council did not include delivery of improvements to the A92 in their city deal proposals.
“City and Region Deals provide the opportunity to target spending on the needs and aspirations of local communities.
“Although each deal is bespoke to the city and region concerned, the focus is on identifying priorities, including transport priorities, that improve the regional economy.
“Over £34 million has been invested on the A92 since 2007 to ensure it is well maintained and operates safely.
“Whatever happens to the trunk road does not happen in isolation of the local road network and we will continue to have a joined up approach with the council and the communities along the route.”