However, as the below official animation video shows, there is no benefit in traffic flow. It even shows cars and motorcycles undertaking and making dangerous manoeuvres around trucks spread across the four-lane freeway.
A Victorian Transport Workers Union spokesman says the trial failed because it resulted in other vehicles performing dangerous manoeuvres around trucks.
A spokesman for Minister for Roads and Road Safety Luke Donnellan confirms the speed reduction “did not support the benefits of a truck and car differential speed limit below 100km/h”.
“The second phase of the Monash Speed Trial, where trucks will be banned from travelling in the far right lane, will commence when road works are completed later this year,” he says.
Extend to more vehicles?
Road safety and traffic could also be improved if other slow-moving vehicles were also limited to the left lane (right or slow lane in countries where they drive on the right side of the road).
Trucks, caravans, buses and towed vehicles are restricted to the “slow” lane in European autobahns and only allowed to pass in designated areas.
These passing areas are never on hills as it takes trucks longer to pass each other going up or down a hill.
How many times have you been stuck behind two trucks blocking both lanes?
This simple system of lane restriction would separate trucks from smaller traffic, particularly vulnerable motorcycles and would allow the rest of the traffic to move more smoothly without being hindered by trucks.
Trucks are responsible for the deaths of more than 300 people a year in Australia and 4500 a year in the US.
His research showed that moving 10% more freight by rail would save 25 lives in Australia every year, and 100 serious injuries such as quadriplegia or brain damage. Yet, road freight is increasing while rail is decreasing.