The Australian Road Assessment Program report, released last week, found several sections of the Western Highway were among the state's riskiest, based on traffic, death and serious injury data.

RACV general manager of public policy Brian Negus said the three worst sections of Victoria's highways accounted for just 3 per cent of the road network but 9 per cent of road deaths.

Joining the Western Highway in the top three were the Princes Highway (Strzelecki Highway to Traralgon) and Princes Highway East (Rosedale to Sale).

The Western Highway was upgraded with the construction of the Deer Park bypass in April 2009 and the RACV said it expected this would result in improved performance in the next analysis.

Melton's Leading Senior Constable Allan Edwards said he didn't think the road was "all that bad. It has been improved with wire rope barriers ... historically, it may have accounted for many fatalities, but not any more".

Senior Constable Edwards said most collisions occurred around Caroline Springs Boulevard and the Western Highway's problems were worse before the bypass was built.

Melton Council's acting general manager, Les Stokes, said it had been actively advocating for safety improvements on the highway through VicRoads and the Western Highway Action Committee.

"Over time this work has achieved significant improvements such as the Deer Park bypass, Anthonys Cutting realignment, Leakes Road interchange and numerous crash barrier installations between Melton and Caroline Springs," he said.

Melton Residents' Association president Peter Rowan said the Anthonys Cutting project had made the highway a safer road.

Both Mr Rowan and local road safety campaigner Narelle Bowden believed the Melton Highway to be more of a concern.

As reported by the Weekly, Ms Bowden has been calling for the duplication of Melton Highway since the death of a relative.