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Resealing and repairs have been happening in Main South Rd, just north of a planned roundabout at the intersection with Church St.
There are also plans to raise three pedestrian crossings in Main South Rd.
Introduction of a 30kmh speed limit has been another recent development.
Dunedin City Council transport delivery manager Ben Hogan said the resealing work was next to the planned roundabout, but the projects were otherwise unlinked.
The council had been concerned about pedestrian safety and traffic congestion in Green Island.
Work on the pedestrian crossings and roundabout is expected to be completed by June.
It is expected to cost about $1.2million.