Heavy Vehicle (Mass, Dimension and Loading) National Regulation (NSW)

The mass of a heavy vehicle, other than a road train or a B-double, relating to an axle spacing of the vehicle must not be more than—

for a complying steer axle vehicle, or Euro VI vehicle (single steer axle), for which the steer axle is used to calculate the axle spacing—the table 2 limit increased by 0.5t; or

for a Euro VI vehicle (twinsteer) for which the twinsteer axle group is used to calculate the axle spacing—the table 2 limit increased by 0.5t; or

for a Euro VI vehicle (complying steer axle) for which the steer axle is used to calculate the axle spacing—the table 2 limit increased by 1.0t; or

otherwise—the table 2 limit.

The mass of a B-double relating to an axle spacing of the B-double must not be more than—

for a complying steer axle vehicle, or Euro VI vehicle (single steer axle), for which the steer axle is used to calculate the axle spacing—the table 3 limit increased by 0.5t; or

for a Euro VI vehicle (twinsteer) for which the twinsteer axle group is used to calculate the axle spacing—the table 3 limit increased by 0.5t; or

for a B-double that is a Euro VI vehicle (complying steer axle) for which the steer axle is used to calculate the axle spacing—the table 3 limit increased by1.0t; or

otherwise—the table 3 limit.

The mass of a road train relating to an axle spacing of the road train must not be more than the table 4 limit.

Each of the following is an axle spacing of a heavy vehicle—

the distance from the centre-line of a single axle to the centre-line of another single axle;

the distance from the centre-line of a single axle to the centre-line of the furthest axle in any axle group;

the greatest distance between the centre-lines of axles in any 2 axle groups.

Examples—

Axle spacings of a heavy vehicle

The mass limits imposed by subsections (1) to (3) apply to the sum of the mass on each axle group or single axle within the heavy vehicle’s axle spacing.

The axle groups or single axles that are within an axle spacing of a heavy vehicle are the end axles and every axle group or single axle between the end axles.

Example—

In the examples under subsection (4), for the longest axle space, the mass limits imposed by subsections (1) to (3) apply to the sum of the mass on each of the axle groups or single axles made up of the 6 axles shown as included within the spacing.

In this section—

end axles, in relation to an axle spacing, are the axle groups or single axles on each end of the axle spacing.

table 2 limit, in relation to an axle spacing, means the mass limit stated in Table 2 of Part 2 in relation to the axle spacing.

table 3 limit, in relation to an axle spacing, means the mass limit stated in Table 3 of Part 2 in relation to the axle spacing.

table 4 limit, in relation to an axle spacing, means the mass limit stated in Table 4 of Part 2 in relation to the axle spacing.