Vehicle Number Of Wheels

Source of Definition: MVA

Source of Data: MVA

A count of the total number wheels used to support a vehicle. Wheels on truck axles that can be raised and lowered to the ground, are counted. Spare wheels are not counted.

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Usage Note: Most commonly:

• a motorcycle has 2 wheels,
• a trike 3,
• an automobile 4,
• a truck 4 or more. Note, each tandem axel on a truck contributes 4 wheels to the total number of wheels (see diagram).

  Logical Format (Type/Max Length): N/2

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wheelQuantity type: number-integer