What is an axle group?
What are the regulated dimension limits?
What are the regulation mass limits?
What is a road train?
What is a turntable/fifth wheel?
What is a semi-trailer?
What is a converter dolly?
What is a pig trailer?
What is a dog trailer?
What is a B-double?
What is a block truck?
What is a trailer drawbar?
Who can I contact for more information?
Vehicles can be built to or carry loads to various dimensions, which are outlined in the following:
Single Steer 2 Tyres
Twin steer axle group 4 tyres
Single axle 4 tyres
Tandem axle groupDual tyres (8)
Tri-axle groupDual tyres (12)
Vehicles must not exceed any manufacturer's limit. The least value should be noted for components such as:
A combination, except a B-Double, consisting of a motor-vehicle towing at least two trailers (counting as a single trailer a converter dolly supporting a semi-trailer).
A device (except the upper rotating element and the king pin, which are parts of a semi trailer) used with a prime mover semi-trailer, or converter dolly.
Semi-trailer Road train with two (2) semi-trailers and one (1) converter dolly
Pig trailer Rigid truck and pig trailer combination
Dog trailer Triple road train with 2 dog trailers
Lead semi trailer B-double
Heavy Vehicle Operations
Phone: 138 HVOE-mail: firstname.lastname@example.org Fax: (08) 9475 8455