DRIVERS are being warned to watch their speed when travelling on the Dukes Hwy after two new point to point cameras were made operational on Monday.
Located on a 13km stretch from Coonalpyn to Ki Ki, they calculate the average speed between the two points as well as detect the actual speed of a passing vehicle.
This means motorists could potentially get pinged twice if they are travelling faster than the legal limit.
Traffic going in both directions will be monitored 24 hours a day, seven days a week and are appropriately marked with "safety camera ahead" and "average speed camera zone" signs.
Between 2009 and 2013, 17 people died on the Dukes Hwy.
According to research there has been a 50 per cent reduction in fatal and serious crashes in locations where point-to-point cameras have been installed.
In 2013, speed contributed to 26 per cent of fatal crashes on SA roads.
Eventually there will also be point-to-point cameras operating on Victor Harbor Rd, Sturt Hwy, the South Eastern Freeway and the Northern Expressway.