Road users in Hatfield are being urged to plan their journeys in advance due to works in the town.
According to Hertfordshire County Council, traffic signals are being refurbished at the junction between the A1057 St Albans Road West and Mosquito Way.
While works are taking place, temporary traffic signals will be in situ 24 hours, seven days each week, from Tuesday, August 30 until Friday, October 7.
Engineers may also need to shut lanes between 8.30am and 5pm.
A Hertfordshire Highways statement reads: "Plan ahead by checking your route for delays."
It adds: "Traffic signal refurbishment works will be taking place on A1057 St Albans Road West junction with Mosquito Way under 24/7 temporary signals and lane closures between 8:30am - 5pm from August 30 until October 7."
The junction sits near the University of Hertfordshire De Hallivand Campus, Comet Roundabout and The Galleria.
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