Vehicles have struck wire rope barriers in the North East nearly 250 times this year, with a VicRoads spokesman stating each strike has averted a potentially serious collision.
The roads authority has been rolling out the safety system on the Hume Highway at a cost of $107 million, with 780 kilometres now covered.
The remaining 120 kilometres is expected to be installed by the end of the year.
More vehicles are hitting the rope as the coverage increases.
There were 114 strikes recorded between Seymour and Wodonga last year, and 247 strikes have been recorded between Benalla and Wodonga so far this year.
Spokesman Scott Lawrence noted the benefits of the safety measure.
"We're rolling out flexible barriers on the Hume Freeway to prevent the tragic loss of life caused by head-on and run-off-road collisions," he said.
"Our installation works are on the home stretch and by the end of this year there will be safety barriers all the way from the M80 Ring Road through to Wodonga.
"So far this year there have been 247 barrier strikes along the Hume Freeway between Benalla and Wodonga - which represents potentially serious or fatal crashes that have been avoided."
According to VicRoads, flexible roadside barriers can reduce the risk of head-on and run-off-road crashes by up to 85 per cent.
It also reduces the severity of crashes.
One person died on the highway last year with 29 injured, down from 7 in 2017 with 38 people injured.