Rabbits on the Anzac Drive, New Brighton and Travis Rds roundabouts could be culled or caught and released elsewhere.
The New Zealand Transport Agency is yet to make a decision on their future.
However, an NZTA spokeswoman said the highway maintenance team is putting in place a rabbit control operation over the coming weeks.
"In the meantime, we encourage people to take their safety responsibilities and that of the other drivers on this busy road seriously and concentrate on the road and safe driving," she said.
"People should not be venturing on to the traffic island for their own safety and the safety of other drivers."