The fixed speed camera site on Kingsway at Miranda has proved to be one of the most effective in the state, a review has found.
The number of road accidents involving injuries has dropped by 86 per cent.
Two speed cameras were installed in the 400 metre long zone outside Miranda Public School and Port Hacking High School in 2007.
An annual review of the speed camera program by Transport for NSW, which was released in October, compared the number of accidents at camera locations in the five years before installation with the five years to the end of 2017.
At Miranda, there were 14 casualty crashes, with 19 people injured, two seriously, in the five years before the cameras started operating,
During the five years to the end of 2017, there were two casualty crashes, with two people injured, neither seriously.
This was the third best result in the state.
The report found fixed speed cameras across the state had reduced fatalities at the locations where they are installed by 80 per cent.
Injuries fell by more than a third.
Minister for Roads Andrew Constance said the review analysed all NSW speed camera locations finding fewer fatalities and injuries, despite an overall increase in traffic.
"Last year we lost 347 lives on our state's roads, and this year's toll is already at 292," he said.
"Speeding is the biggest killer.
"We know speed cameras in the right locations slow drivers down and save lives."
Mr Constance said, at the 171 intersections where red-light speed cameras operated, fatalities fell by 74 per cent, serious injuries dropped by 40 per cent and pedestrian casualties almost halved.
"Every year we review the speed camera program and if any aren't delivering benefits we remove them," he said.
The review also identified fewer heavy vehicle crashes along average speed camera enforcement lengths, with those fatalities falling by 44 per cent.
The mobile speed camera program enforced speed limits at 1024 locations for around 7000 hours per month in 2017, with the review finding more than 99 per cent of drivers stuck to the speed limit.