Monash speed trial

We’re exploring new and innovative ways to manage the Monash Freeway, to encourage all road users to share the road and drive safely.

We’re trialling a 90 km/h speed limit for trucks over 4.5 tonnes along the Monash Freeway, between Huntingdale Road in Mount Waverley and Jacksons Road in Noble Park. The trial started 25 August and will run for 18 months.

Share your experiences

Tell us about your experience with the trial.

If you drive a truck or car, ride a motorbike or commute on public transport we’d like you to hear from you.

To join the discussion, visit our forum or complete the survey here.

Why are we doing the trial?

The aim of the trial is to determine whether reducing the speed limit for trucks will improve road safety and reduce the number of crashes.

Reducing the speed will create greater distances for cars to navigate safely around trucks, which will reduce the likelihood of rear end and side swipe crashes.

Why the Monash Freeway?

The Monash Freeway was chosen because it is one of Victoria’s busiest freight routes with over 200,000 cars and trucks driving along it every day. The freeway is also four lanes which allows for safer overtaking.

A shared responsibility

The road is a truck driver’s workplace and we share a common responsibility to ensure everyone’s workplace is safe and as hassle free as possible.

A reduced truck speed will improve your drive but you also have a responsibility to keep the road safe. You should play your part to keep truck drivers safe by not driving in or changing lanes into the braking gap of a truck.

Large trucks travelling at 100km/h need approximately 32 car lengths to safely stop.

How will drivers know about the 90km/h speed limit?

We have installed new speed limit signs on the trial section of the Monash. These signs show the speed limit for cars and the speed limit for trucks.

How will we evaluate the trial?

An independent evaluation will determine the success of the trial. This evaluation will look at a number of factors including:
  • the number of recorded crashes and incidents
  • travel efficiency
  • impact on commercial and private productivity
  • environmental impacts such as noise and pollution

We'll utilise technology that records driver behaviour including speed, tailgating, lane changes and lane occupancy.

The trial will also provide information to assist in any future heavy vehicle speed policies for urban areas in Victoria. 

This does not mean that truck restrictions will be permanently introduced on the Monash after completion of the trial.

Contact us

If you'd like more information or to keep informed of future updates, please get in touch.

Message us online

What is defined as a truck, and how does this apply to buses and other vehicles? 
For the purposes of the trial a truck is those trucks heavier than 4.5 tonnes. The trial will not affect buses. 
Are trucks causing all of the accidents on the Monash?
This trial does not place blame on trucks for the volume of accidents on the Monash. All road users have equal responsibility to share the road and drive safely.  

How will having trucks and cars travelling at different speeds reduce crashes?
The aim of the Monash Speed Trial is to determine whether reducing the speed limit for trucks will improve road safety and reduce the number of crashes involving cars and trucks.
Reducing the speed that trucks are travelling will open a gap between cars and trucks that doesn’t currently exist. This will ease the traffic tension between trucks and cars.

Why not just implement a right hand lane ban given this has been proven in other areas?
VicRoads is committed to exploring new and innovative ways to manage Victoria’s arterial roads, keeping them safe and efficient. 

If required, a second phase of the trial will see trucks banned from travelling in right hand lanes. This will be done in conjunction with the 90km/hour speed limit.

Why are you not conducting the trial on the entire length of the Monash?
The trial is being conducted on the 100km/hour section of the Monash. The section of the Monash from the tunnels to High Street is 80km/hour and therefore the 90km/hour speed limit reduction would not be relevant for that section.

How is this related to the Dynamic Speed Trial on the Monash Freeway?
The trials are two separate initiatives. 

The Dynamic Speed Trial starts well away from the Monash Speed Trial in order to minimise confusion for divers and to ensure the results can be measured independently.

Both trials aim to reduce frustration for all motorists with the Monash Speed Trial aiming to reduce tension between cars and trucks.

The Dynamic Speed Trial will allow for increased speeds when conditions allow, potentially reducing travel times.   

If the trials are running at the same time, on different parts of the Monash Freeway, won’t drivers get confused?

The Monash Speed Trial changes will be clearly communicated before the trial begins and truck drivers need only obey the new speed signage and trucks the right hand lane ban when this is in place. For the Dynamic Speed Trial, drivers will just need to observe the overhead electronic speed signs as they usually do.   

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