HALF-a-million euros, two different reconstruction attempts and we're more or less back where we started.
It's enough to drive Killiney motorists around the twist.
Two years ago Dun Laoghaire Rathdown County Council (DLRCC) decided to remodel the roundabout at the junctions of Killiney Road, Glenageary Road Upper, Barnhill Road and Avondale Road in an effort to make it safer for cyclists.
A €275,000 cycle lane around the perimeter of the roundabout came into service in February last year, but a spate of accidents and complaints saw the council go back to the drawing board and spend €155,000 removing the cycle lane.
Problems arose when cyclists thought they had right of way over motorists and motorists thought they had right of way over cyclists.
The council has admitted that the cycle lane design was "unduly ambitious".
But even though the roundabout has been remodelled again, reactions are still mixed.
Local man Bruce Arnold says the fact that the new system makes cyclists use the pavements to negotiate the roundabout means pedestrians are now at risk from cyclists.
"The situation is now more dangerous than ever," he said.
Other locals say they've had enough roadworks for the past two years and want the roundabout to stay the way it is now.
"The cycle lane was a disaster. There were two people taken to hospital after the cycle lane was put in," said Sighle Creagh, who lives beside the roundabout.
"One was a man in his 80s and the other was a teenager. They thought that the cycle lane gave them right of way.
"I think it is safer now and it should be left alone. The footpath is wide enough."
Another local resident, Olive McTurk (84), agreed that the cycle lane didn't work.
"I have been here for 56 years and there were no accidents on the roundabout, but then two people got knocked down when they put in the cycle lane," she said. A DLRCC spokesperson said the design for the original cycle lane did not change the status quo in relation to the right of way on roundabouts.
"It merely reinforced the status quo whereby a cyclist remaining on a roundabout has right of way over exiting vehicular traffic," he said.
"With the benefit of hindsight it became clear that this design, however well intended, was unduly ambitious.
"A design solution was arrived at to remove the potential conflict with the right of way issue.
"The newly constructed scheme fully complies with the National Cycle Manual, and an independent road safety audit of the scheme will be undertaken in the coming week."