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Table A2.1: Classification of vehicles for New Zealand

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Axles

Distinguishing features or identification algorithm

Vehicle types
in class

Length Axle Visual

Light or heavy?

NZTER

Length range

TNZ length class1

TNZ class

PEM class2

LTSA class3

2

Number of axles and wb < 3.2 m

o-o
(short vehicle)

 

S

1

Car and LCV

Motorcycle, light vehicles

Light

Car and LCV

3

3 axles and sp ax1-ax2 < 3.2 m or 4 axles and (sp ax1-ax2 < 3.2 and > 2.2) and sp ax3-ax4 ≤ 1.0 m

o-o-o
(short vehicle towing)

o-o-oo
(short vehicle towing)

 

S/M

S/M

2

Car and LCV

Light vehicles

Light

Car and LCV

2

Number of axles and wb ≥ 3.2 m

o--o
(long vehicle)

4–11 m

M

3

MCV

Bus, SU 2 axle

Heavy

HCV small
(3.5-7.5 t)

3

Number of axles and sp ax1-ax2 ≥ 3.2 m and sp ax2-ax3 ≤ 2.2 m

o-oo

7–11 m

M

4

HCV1

Bus, SU 3+ axle

Heavy

HCV small
(3.5-7.5 t)

3

Number of axles and sp ax1-ax2 ≥ 3.2 m and sp ax2-ax3 > 2.2 m

o-o--o

6–15 m

M/L

5

HCV1

Semi

Heavy

HCV medium
(7.5-12 t)

4

Number of axles and sp ax1-ax2 ≤ 2.2 m

oo-oo

8–11 m

M

6

HCV1

Bus, semi

Heavy

HCV medium
(7.5-12 t)

4

Number of axles and sp ax1-ax2 > 2.2 m and sp ax3-ax4 > 1.0 m

o--o-o--o

o-o-oo

8–19 m

10–17 m

M/L

M/L

7

HCV1

Bus, TT

Heavy

HCV medium
(7.5-12 t)

5

Number of axles

o--oo-o--o

o-oo--oo

16–19 m

11–17 m

L/VL

L

8

HCV2

Semi, TT

Heavy

HCV large
(> 12 t)

6

Number of axles and sp ax1-ax2 > 2.2 m and sp ax4-ax5 ≤ 1.4 m

o-oo--ooo

15–18 m

L/VL

9

HCV2

Semi

Heavy

HCV large
(> 12 t)

6

Number of axles and sp ax1-ax2 > 2.2 m and sp ax4-ax5 > 1.4 m

o-oo-o--oo

16–20 m

L/VL

10

HCV2

TT

Heavy

HCV large
(> 12 t)

7

Number of axles and sp ax1-ax2 > 2.2 m

o-oo--oo--oo
(B-train)

o--oo-oo--oo
(T & T)

o-oo--oo-o--o
(A-train)

18–21 m

18–21 m

18–21 m

VL

VL

VL

11

HCV2

Semi, TT

Heavy

HCV large
(> 12 t)

6, 7, 8

Number of axles (6, 7 or 8) and sp ax1-ax2 ≤ 2.2 m

oo--oo-o--o

oo--oo-o--oo

oo--oo-oo--oo

15–20 m

17–21 m

18–21 m

L/VL

VL

VL

12

HCV2

TT

Heavy

HCV large
(> 12 t)

8, 9

Number of axles and sp ax1-ax2 > 2.2 m

o-oo--ooo-oo
(B-train)

o-oo-ooo-o--o
(A-train)

o-oo-oo-o--oo
(A-train)

o-oo--ooo--ooo (B-train)

19–21 m

19–21 m

19–21 m

19–21 m

VL

VL

VL

VL

13

HCV2

Semi, TT

Heavy

HCV large
(> 12 t)

1 TNZ = Transit New Zealand; S = small (0-5.5 m); M = medium (5.5-11 m); L = large (11-17 m), VL = very large (> 17 m).

2 PEM = Transfund New Zealand Project Evaluation Manual; LCV = light commercial vehicle, two axles < 3.5 tonnes; MCV = medium commercial vehicle, two axles > 3.5 tonnes; HCV I = heavy commercial vehicle, type 1 trucks with three or four axles; HCV II = type 2 trucks with five or more axles.

3 LTSA = Land Transport Safety Authority; TT = rigid truck with trailer, semi-articulated semi-trailer; SU 2 = single unit truck with two axles; SU 3+ = single unit truck with three or more axles.