A suggestion by Victoria's most senior traffic police officer that the zero blood alcohol limit should be extended to all drivers under 26 has not been backed by the roads minister.
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The disagreement over the best ways to deal with road safety came as a stretch of road on one of Melbourne's busiest freeways became the first in Australia to trial dynamic speed limits.
Assistant Commissioner Doug Fryer used the 40th anniversary of the introduction of random breath testing in the state to start a discussion widening the drinking ban.
"We know young drivers are at the highest risk on our roads and they are consistently over-represented in alcohol-related road trauma," Mr Fryer said on Monday.
A mixture of inexperience and self-determined invincibility leaves them exposed and extremely vulnerable to road trauma, he said.
In 2014, of the 468 injured drink-drivers tested in hospital, 31 per cent were aged under 26.
But the roads minister, Luke Donnellan, said expanding drink-driving laws was not being considered by the government.
"Victorians rightly find drink-driving abhorrent and that is why the Andrews Labor Government recently tightened laws to deter people from getting behind the wheel while over the limit," Mr Donnellan said.
Any Victorian convicted of drink-driving is required to fit an interlock device and those caught with a blood alcohol content over 0.10 will also have their cars impounded on the spot.
Speed limits on the Monash Freeway will move up and down based on live traffic conditions in what the Victorian government describes as an Australian-first technology trial.
Mr Donnellan said the trial would allow speed limits to change in response to road conditions, such as an increase or decrease in traffic volumes, weather conditions and the time of day.
The six-month trial will operate between High Street in Ashburton and Glenferrie Road in Toorak and will see speeds increase from 80km/h to 100km/h when conditions allow.
"We're making the speed on the Monash reflective of the conditions meaning that when it is safe to do so, motorists will be able to travel at 100km/h," Mr Donnellan said on Monday.
It will use existing technology including CCTV, road sensors and overhead electric signs to change the speed limit and if successful could be rolled out across other roadways across Melbourne.
The trial will run in three phases which will include changing speeds at night, overnight and off-peak periods and finally 24-hours a day.