The traffic lights on the St Peters Way roundabout in Northampton are set to be turned off from Monday.
Roadworks on the roundabout are set to restart again and, from January 5, it will operate as a conventional roundabout as opposed to a signal controlled junction. Give-way road markings will be painted and lane restrictions will also be in place.
During January, Black Lion Hill will be taken down to one lane on the approach to the roundabout to allow for the left hand turn to be built into Horsemarket.
Horsemarket/A508 will have a two lane approach on to the roundabout.
In Towcester Road there will only be a one lane approach to the roundabout.
In St Peters Way there will be a two lane approach onto the roundabout to allow for works to take place on the new central reservation and Carlsberg access route.
Throughout this time drivers are being urged to use the diversion routes, using either Mere Way or Spencer Bridge Road.