Road safety campaigners say their messages finally seem to be getting through after WA's road toll was last night on track to equal the second lowest since records began in 1965.
Police figures show 163 people died on WA's roads last year - 19 fewer than in 2012 and just one above the lowest road toll on record set in 2005.
Though the number of deaths on metropolitan roads was the same as in 2012 at 89, fatalities on country roads fell from 93 to 73.
Road Safety Council chairman Murray Lampard said the fall in the road toll was a terrific effort, especially because the number of motorists had increased along with the State's population.
Mr Lampard said he believed the lower road toll could be attributed to motorists driving more responsibility, improving safety on dangerous stretches of road and road safety projects funded by the Government's Road Trauma Trust Account.
He also said the car industry was making safer vehicles and motorists were driving slower and making important decisions such as not to drink and drive.
"However, 162 (deaths) is still too many," Mr Lampard said.
Road Safety Minister Liza Harvey warned against complacency.
"We need to remember that the road toll isn't just a number - it represents lives and the reality is that these are people who have families that are left behind to deal with pain and suffering," Mrs Harvey said.
RAC spokesman Will Golsby said WA's fatality rate had been in decline since the start of 2011, but the trend needed to be put into context because the State's fatality rate remained higher than the national average.
Mr Golsby said the rate of road fatalities in country WA was still unacceptably high, with 14 fatalities per 100,000 people compared with five per 100,000 people in the metropolitan area.
Police Assistant Commissioner Nick Anticich said the State Government's Towards Zero road safety strategy, disqualification notices, bigger penalties for drink-drivers and better camera technology had contributed to the lower toll.
The father of Gordana Grgurinovic, 23, who died after her car hit a stationary water truck in Beeliar in February, said one death was too many.
Gordon Grgurinovic, of Wattleup, urged people to be careful and stay alert.
A woman has died after a car rollover in Lake Argyle yesterday afternoon.
The woman was a passenger in car which rolled on Victoria Highway in Lake Argyle.
Police said it appeared the vehicle had aqua-planed after hitting water that remained in the low part of the road after recent heavy rainfall.
The male driver and his female passenger were taken to Kununurra District Hospital. The woman later died in hospital.