Tonkin Highway's reputation as one of the worst drag strips in Perth has been confirmed by figures showing lead-footed drivers sped through two Bayswater intersections more than 24,000 times during the past year.
Among the 30 Perth intersections fitted with integrated speed and red light cameras, the intersection of Tonkin Highway and Guildford Road recorded by far the most speeding motorists during the year to November 30, with 14,379.
The next worst was Tonkin Highway and Collier Road, with 9904, meaning the top two intersections accounted for more than a third of the total infringements recorded by the devices, introduced to Perth roads in mid-2010.
Road Safety Minister Liza Harvey said she was shocked by the driver behaviour on the highway but pointed to a 60 per cent reduction in fatal and serious injury crashes at camera-fitted intersections as evidence of their value.
She said she was encouraged that this year's road toll, which stood at 157 last night, was on track to be the lowest since it was first recorded in the mid 1960s. Of the 64,790 speeding infringements generated by the 30 cameras, 40,600 were for going up to 9km/h faster than the limit; 22,900 were for going up to 19km/h faster; 1113 were for going up to 29km/h faster and 147 were for going up to 40km/h faster.
Twenty-three motorists were snapped doing 41km/h or more over the limit and of those, six were travelling more than 45km/h over the limit and had their cars impounded under hoon laws.
Mrs Harvey said the 60 per cent reduction in fatal and serious crashes at camera-fitted intersections appeared to be driven by a 46 per cent drop in devastating right-angle or "T-bone" crashes.
"(The integrated cameras) must be changing driver behaviour," she said. "First of all, compliance with the speed limit and secondly, fewer people running the red light and having those crashes."
Road Safety Council chairman Murray Lampard said the evidence suggested motorists were resisting accelerating to get through orange traffic lights in the knowledge the cameras would nab them speeding.
He said the lowest road toll for 50 years was a good achievement.