Berwick MP Sir Alan Beith has welcomed the clear timetable given by the Department for Transport for action on the A1 through Northumberland.
A feasibility study assessing the business case for dualling is currently being carried out but submissions must be made by the end of this month.
The findings will then be presented to central Government and if strict value-for-money criteria are met funding could be released to upgrade the route.
Sir Alan said: “I will keep working to secure a firm funding commitment for the work from the Coalition Government, and to make sure that, unlike the Conservative Government’s hollow commitment to dual the A1 made in 1992 which came to nothing, the upgrading work is carried out.”
Councillor Grant Davey, leader of Northumberland County Council, added: “We know how important an issue this is to local people and the business community.
“The aim is to build a business case for dualling the A1 in Northumberland and looking at the economic case for more investment in other transport projects along the route.
“We look forward to getting more detailed ideas and we will be working hard to make our case at a national level.”