Part 4Vehicle configuration and dimensions

Part 4—Vehicle configuration and dimensions

Note: This Part sets out various requirements covering suspensions on vehicles and size limits for single vehicles and combinations of vehicles, so that they can be operated safely with other traffic, without taking up too much road space or damaging the road and structures on the road.

Note: Generally, the limits specified in this Part apply to a vehicle and any load it may be carrying.

Note: Specific requirements for loaded vehicles are covered in other sets of regulations under the Road Transport Reform (Vehicles and Traffic) Act 1993. Those regulations also include a number of different size limits to cater for vehicles from which the load is allowed to protrude, for example height and allowable rear overhang of car carriers.

Note: The following terms defined in clause 10.6 are used in this Part:

articulated bus GVM
axle load‑sharing suspension system
axle group point of articulation
bus overhang
centre of an axle group rear overhang line
combination of vehicles road train
converter dolly semi‑trailer
dog trailer single axle
drawbar single axle group
fifth wheel coupling tandem axle group
ground clearance twinsteer axle group

Note: The following terms defined in section 4 of the Act are used in this Part:

motor vehicle trailer