Motorists are being warned they could face delays for up to three weeks while work is carried out at a junction on a main road near Chesterfield..
Electronic warning signs on the A619 Chesterfield Road approximately 100m before the junctions of Inkersall Green Road and Troughbrook Road, in Hollingwood, are being replaced.
Derbyshire County Council said the current signs which warn drivers of turning traffic at the junctions "have come to the end of their working life".
The new signs will work in the same way, illuminating as traffic approaches, but are powered by more advanced technology.
The work is set to start on Monday, February 26 and take place weekdays between 7am and 4pm.
Work has been scheduled to take three weeks but could be finished earlier, the county council said.
Temporary three-way signals will be used close to the site of the works. They will be manually controlled from 7am and removed at the end of each day.
Some of the work may be carried out without the need for temporary lights.
A temporary one-way system will be in place on Troughbrook Road throughout the work. This is just for traffic turning off Chesterfield Road into Troughbrook Road.
Traffic wanting to exit Troughbrook Road onto Chesterfield Road will be able to join the main road from nearby local roads.