Work is set to start on an £8m scheme in South Ribble to cut congestion on a key route into Preston.
The first phase will begin on May 27, with the A582 at its junction with Chain House Lane being widened to provide more lanes for traffic.
The junction will also be improved to make it easier for cyclists to use, with toucan crossings to allow cyclists to cross alongside pedestrians.
Following this, work will start in June to upgrade the A582 north of Cop Lane to a dual carriageway with improvements to the junction with Leyland Road.
The project is part of plans to increase capacity on vital routes outlined in Lancashire County Council’s Highways and Transport Masterplan for the area, and one of four major highway schemes to receive funding under the Preston, South Ribble and Lancashire City Deal.
County Coun John Fillis, Lancashire County Council cabinet member for highways and transport, said: “The City Deal and further transport improvements outlined in our transport masterplan are vital to trigger the creation of thousands of new jobs and thousands of new homes over the next decade.
“This scheme on the A582 will have an immediate impact to relieve existing congestion and I’m very pleased to be getting started.
“We know how busy this route is and will be making every effort to minimise disruption, with work which will restrict traffic flow only being done outside peak times.”
Councillor Margaret Smith, leader of South Ribble Borough Council, said: “The beginning of this work is a significant step.
“Any short-term disruption to road users will be far outweighed by the long term benefits to our communities. I welcome the commitment to carrying out this work as considerately as possible, on what is an extremely busy route.
“Not only will our residents reap the rewards of shorter journey times, this and other infrastructure projects included in the City Deal will pave the way for investment in our town centres and open spaces, as well as other improved facilities for our residents.”
Preparation work took place earlier this year to remove trees and hedging within the highway before the bird nesting season.
Further congestion-busting work on the A582 will take place from October 2014 to March 2015.
Traffic signals will be added to the roundabout at Stanifield Lane, and the section of Golden Way south of Cop Lane to the Broad Oak roundabout will be widened to dual carriageway.