Motorists using the A92, between Redhouse Roundabout in Kirkcaldy and Bankhead Roundabout in Glenrothes, will benefit from a smoother road surface as improvement works worth £750,000 get underway.
The Transport Scotland funded works began on Monday and are expected to last for two weeks on the northbound section.
They will then continue for one week on the southbound carriageway from Monday, July 28.
The works will be carried out from 8.00 p.m to 6.30 a.m. each night to help minimise delays to motorists.
The A92 northbound Thornton bypass is closed to all traffic while works are carried out to ensure the safety of motorists and roadworkers. The A92 southbound between these roundabouts will remain open during this time.
From Monday, July 28, the southbound Thornton bypass will be closed to all traffic whilst the northbound will be open.
A diversion will be signposted throughout the works. Andy Thompson, operating company representative for BEAR Scotland, said: “This resurfacing programme is essential to ensure the continued safe use of this stretch of the A92 which requires upgrading.”