Wimmera Police say they were pleased by drivers' adaptation to a new law mandating they slow down to 40 kilometres an hour past emergency vehicles when their lights are flashing.
While carrying out Operation Nexus on the region's roads over the long weekend, Goroke Leading Senior Constable Jim Richardson said officers from three police units patrolled the Wimmera Highway.
"If one of the members pulled the car up, other members would be in the vicinity to get a clear vision of the intercept, and then monitor the speed of passing traffic," Leading Senior Constable Richardson said.
"We were pleasantly surprised at how well the general community obeyed the law. No infringements were issued, and considering how heavy the traffic was, it was a big surprise.
"There is anecdotal evidence of people not understanding the laws, which is what prompted us to do the operation yesterday: Many officers have had moments where they've felt drivers have gone by a bit too quickly, so we thought we'd look into it."
Statewide, three people were killed in collisions during the five-day Operation Nexus which ended on Monday night.
The incidents have taken Victoria's road toll for 2019 to 101, 40 above the tally at the same time last year.
Leading Senior Constable Richardson said residents needed to understand the trauma of a fatal road crash flowed on to the entire community.
"I had to respond to a fatality in April, and it makes you stop and think," he said.
"Someone has to be the first on the scene, and that can have an adverse effect on people."
Police will continue to have a strong presence on the roads through the Anzac Day public holiday as part of Operation Kinetic.