Traffic signal refurbishment works will be carried out at the at junction of Stockway North and Clevedon Road.
The improvements, which will include replacing the traffic signal controller, signal heads, poles and cabling, are part of North Somerset Council's 15-year replacement programme.
Cllr Hannah Young, North Somerset Council's executive member with responsibility for roads said the scheme was needed to ensure the smooth management of traffic in the town in the future.
"We appreciate that the work may cause some disruption but we would ask people to be patient while this essential maintenance scheme is completed which will help traffic move smoothly through this junction in the future."
The works, which will be carried out by Yunex Traffic, will take three weeks to complete and temporary signals will be used throughout the scheme.