Oversize Road Train & B-Double

The Oversize Road Train and B-Double Period Permit covers oversize prime movers and trailers (Class 3 RAVs carrying over width/over height indivisible loads).

Applying for a permit

  

Roads and conditions 

The table below provides links to road tables for each network.

  • Image: Icon for RAV Mapping Tool Network links.JPGClick on the map links below to access the RAV Mapping tool displaying the approved roads for the respective network.

Note: Heavy Vehicle Services – Main Roads Western Australia (HVS), as part of any HVS route assessment for a Restricted Access Vehicle (RAV), does not assess any access driveway adjoining a RAV network road.  It remains the responsibility of the property owner to ensure safe ingress and egress to the property.

 

 Cat
Vehicle Configuration
Max
Height (m) 
Max 
Width (m)
Network 

1

Vehicles not exceeding 27.5 m in length

 1.1

B-Double

 Image: B Double.PNG

4.6

3.5

Operates on RAV Network 2

 

 

2

Vehicles not exceeding 27.5 m in length

​2.1

​Prime mover, semi trailer towing a dog trailer

Image: Category 2.1 Oversize Road Train - 27.5m.PNG​2.9*​3.5

27.5m Oversize Road Train Network (LG Order)

27.5m Oversize Road Train Network (Road Name Order)

3​

​ ​ ​ ​ ​Vehicles greater than 27.5 m but not exceeding 36.5 m in length

3.1

Prime mover, semi trailer towing a 4 or 5 axle dog trailer

 Image: Category 3.1 Oversize Road Train - 36.5m.PNG

4.3-4.6**

3.5

36.5m Oversize Road Train Network (Road Name Order)

 

36.5m Oversize Road Train Network (LGA Order)

 

 

 3.2

Prime mover, semi trailer towing a 6 axle dog trailer

Prime Mover, semi trailer & 6 axle dog trailer 

4.6 

3.5 

 3.3

B Double towing a  dog trailer 

B Double towing a 5 or 6 axle dog trailer 

4.6 

3.5 

3.4

Prime mover, semi trailer towing a B Double

Prime Mover, semi trailer towing a B Double

4.6

3.5

3.5

B-Triple

Image: B-triple.PNG

4.6

3.5

Vehicles greater than 36.5 m but not exceeding 53.5 m in length         

4.1 

Triple Road Train

Triple Road Train 

4.3 

3.048 

53.5m Oversize Road Train Network

 

 

 *The load height on the trailers must not exceed 2.9 metres. The height of the prime mover may exceed 2.9 metres, but   must not exceed 4.3 metres.

  ** Refer to sub-clause 7.2 Height Limits in the Oversize Road Train and B-Double Period Permit Operating Conditions.

Modified: 27 May 2020