Weights and Dimensions
1. For all LCV combinations:
- The lead semi-trailer of the configuration must be heavier than the second trailer or semi-trailer.
- The first trailer may be shorter than the second trailer as long as it is heavier.
- Exemptions for length are allowed in accordance with s. 7.08 of the Commercial Transport Regulations.
- Maximum second trailer weight will be as per Appendix G of the British Columbia Commercial Transport Regulations (A- and C- train special calculations apply). Rocky Mountain Doubles - All Rocky Mountain Double LCVs must conform to the following specifications:
Rocky Mountain Doubles
Long Combination Vehicles Program
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All Rocky Mountain Double LCVs must conform to the following specifications:
|
LIMIT |
A TRAIN |
B TRAIN |
C TRAIN |
Overall Length:
Interior / Lower Mainland
Peace River District |
Max 32 m
Max 31 m
|
Max 32 m
Max 31 m
|
Max 32 m
Max 31 m
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Maximum Gross Combination Vehicle Weight as per number of axles in the combination:
5 AXLES:
6 AXLES:
7 AXLES:
8 OR MORE AXLES: |
38 000 kga
49 800 kg
53 500 kg
53 500 kgb |
38 000 kga
48 600 kg
56 500 kg
63 500 kg |
38 000 kga
49 800 kg
54 600 kg
60 500 kg |
Trailer One: |
Box Length |
Min 12.2 m
Max 16.2 m |
Min 12.2 m
Max 16.2 m |
Min 12.2 m
Max 16.2 m |
Wheelbase (WB) |
Min. 6.25 m
Max 12.5 m |
Min 6.25 m
Max 12.5 m |
Min 6.25 m
Max 12.5 m |
Hitch Offset:
Trailer length 12.2 – 13.7 m
Trailer length > 13.7 mc |
Max 1.8 m
Max 2.8 m
|
N/A
N/A
|
Max 1.8 m
Max 2.8 m
|
Effective Rear Overhang |
Max 35% of WB |
Max 35% of WB |
Max 35% of WB |
Tridem Spread |
Min. 2.4 m
Max. 3.1 m |
Min. 2.4 m
Max. 3.1 m |
Min. 2.4 m
Max. 3.1 m |
Tridem Axle Group Weight |
Max. 17 000 kg |
Max. 24 000 kgd |
Max. 17 000 kg |
Converter Dolly: |
Drawbar Length |
Max 2.0 m |
N/A |
Max 2.0 me |
Max Number of Axles |
2 |
N/A |
1 |
Tandem Axle Group Weight |
9 100 kg |
N/A |
N/A |
Trailer Two: |
Wheelbase |
Min. 6.25 m |
Min 6.25 m |
Min. 6.25 m |
Effective Rear Overhang |
Max 35% of WB |
Max 35% of WB |
Max 35% of WB |
Tridem Spread |
Min. 2.4 m
Max. 3.1 m |
Min. 2.4 m
Max. 3.1 m |
Min. 2.4 m
Max. 3.1 m |
Tridem Axle Group Weight |
Max. 17 000 kg |
Max. 17 000 kgc |
Max. 17 000 kg |
Turnpike Doubles
Turnpike Double LCVs must conform to the following specifications:
|
LIMIT |
A TRAIN |
B TRAIN |
C TRAIN |
Overall Length |
Max 41 m |
Max 41 m |
Max 41 m |
Maximum Gross Combination Vehicle Weight as per number of axles in the combination:
5 AXLES:
6 AXLES:
7 AXLES:
8 OR MORE AXLES: |
38 000 kga
49 800 kg
57 700 kgb
63 500 kgb |
38 000 kga
49 800 kg
57 700 kg
63 500 kg |
38 000 kga
49 800 kg
57 700 kg
63 500 kgb |
Trailer One: |
Box Length |
Min 12.2 m
Max 16.2 m |
Min 12.2 m
Max 16.2 m |
Min 12.2 m
Max 16.2 m |
Wheelbase (WB) |
Min. 9.5 m
Max 12.5 m |
Min. 9.5 m
Max 12.5 m |
Min 9.5 m
Max 12.5 m |
Hitch Offset:
Trailer length 12.2 – 13.7 m
Trailer length > 13.7 mc |
Max 1.8 m
Max 2.8 m |
N/A |
Max 1.8 m
Max 2.8 m |
Effective Rear Overhang |
Max 35% of WB |
Max 35% of WB |
Max 35% of WB |
Tridem Spread |
Min. 2.4 m
Max. 3.1 m |
Min. 2.4 m
Max. 3.1 m |
Min. 2.4 m
Max. 3.1 m |
Tridem Axle Group Weight |
Max. 17 000 kg |
Max. 24 000 kga |
Max. 17 000 kg |
Converter Dolly: |
Drawbar Length |
Max. 2.0 m: Single Axle
Max 3.65 m: Tandem Axle
|
N/A |
Max 2.0 me |
Max. Number of Axles |
2 |
N/A |
1 |
Tandem Axle Group Weight |
Max. 9 100 kg: Single axle booster
Max 17 000 kg: Tandem axle booster
|
N/A
N/A |
N/A
N/A |
The following maximum weights apply for combinations of axle groups on the lead trailer and dolly as per the following inter-axle spacing.
|
Configuration |
Inter-axle Spacing* |
Maximum Combined Weight |
Tandem to Single |
< 3.0 m |
23 000 kg |
Tandem To Tandem |
< 3.0 m |
23 000 kg |
|
3.0 m < 5.0 m |
30 000 kg |
*Inter-axle spacing is the distance between the closest axles in adjacent axle groups and is measured from the centre of the axles.
Note: For a lead trailer with a tandem axle and a dolly with a tandem axle (i.e., tandem to tandem configuration), the maximum combined axle group weight of 30,000 kg can be achieved with an inter-axle spacing of 3.0 m, which is also the maximum allowable combined axle group weight for all inter-axle spacings between 3.0 m and 5.0 m.
Trailer Two: |
Box Length |
Min 12.2 m
Max 16.2 m |
Min 12.2 m
Max 16.2 m |
Min 12.2 m
Max 16.2 m |
Wheelbase
|
Min. 9.5 m
Max 12.5 m |
Min 8.25 m
Max 12.5 m |
Min. 9.5 m
Max 12.5 m |
Effective Rear Overhang |
Max 35% of WB |
Max 35% of WB |
Max 35% of WB |
Tridem Spread |
Min. 2.4 m
Max. 3.1 m |
Min. 2.4 m
Max. 3.1 m |
Min. 2.4 m
Max. 3.1 m |
Tridem Axle Group Weight |
Max. 17 000 kg |
Max. 17 000 kgc |
Max. 17 000 kg |
a Max. GCVW 38 000 kg for truck tractor equipped with single drive axle.
b A term overload permit must be purchased as part of the LCV permit to operate in excess of 53 500 kg for A-Train-RMD.
c The tridem axle group, because of hitch offset requirements, can only be present on A and C- trains on lead trailers of lengths greater than 13.7 metres.
d The second fifth wheel must be located within the suspension spread of the lead trailer’s tridem axle group.
e The 2.0 metre maximum drawbar length is applicable to “C” converters manufactured in 1993 or later which meets the compliance requirements to the CMVSS under the Motor Vehicle Safety Act, Canada.
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