A performance by the Dunedin public deemed "not brilliant" means the Dunedin City Council will continue to monitor the new traffic layout in Andersons Bay Rd.
Senior traffic engineer Ron Minnema surveyed the new layout and traffic lights, at the entrance to Countdown Dunedin South, over three days last week and would return later this week.
Traffic at the Hillside Rd-Andersons Bay Rd-Orari St intersection was "working quite well", as was the right-hand turn into the supermarket car park.
However, "lane utilisation" by cars turning out of the supermarket into reduced lanes was "not as good as it should be".
Drivers were also exiting the supermarket on red lights and pedestrians were crossing when they should not.
Mr Minnema also said a lack of room for cyclists was identified through Hillside Rd.
"We are going to look at some options to see how we can provide some more space for cyclists in the short term."
Further "fine tuning" of the lights would occur, but the public also needed to help by adjusting their behaviour.
"To be honest, it was not brilliant, but having said that, we weren't overly concerned. It's part of a learning thing and we don't want to do a whole lot of knee-jerk reactions."