Meetings are being held between gardaí and Cork City Council and Cork County Council ahead of the works at Little Island, Dunkettle interchange and Shannonpark roundabout in Carrigaline.
Up to 10,000 vehicles a day travel in and out of Little Island. Work is set to begin on Monday adding an extra lane to the East Gate Bridge near Little Island. The aim of the lane is to reduce congestion in the area. However, it is likely to place extra pressure on traffic in the area while the works are going on.
Also on Monday, contractors working on the major Dunkettle Interchange upgrade will begin groundwork investigations at the roundabout and will continue for a number of weeks. To avoid major disruption these works will be carried out at night.
Gardaí are also preparing for traffic chaos at the Shannonpark roundabout where upgrades are planned for roads in the area with construction due to begin in the coming days.
The long-awaited upgrade of Dunkettle interchange will also impact on traffic from the east and northeast into Cork city and also on to the N40 South Ring Road.
Between 80,000 and 100,000 vehicles use the interchange every day.
Under the new plan, the interchange will have the current roundabout and lights removed.
The project has a price tag in the region of €100 million.
Just this week, county councillors approved the Little Island Transportation Strategy, which is set to tackle the significant traffic congestion in the area.
Garda Inspector James Hallahan of the divisional Roads Policing Unit is appealing to motorists for their cooperation on the projects.