4th Edition Modified Elements
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V25. Contributing Circumstances, Motor Vehicle


Definition:

Pre-existing motor vehicle defects or maintenance conditions that may have contributed to the crash.
Element Attributes:

None
Subfield 1: Motor Vehicle Circumstance 1:

Brakes
Exhaust System
Body, Doors
Steering
Power Train
Suspension
Tires
Wheels
Lights (head, signal, tail)
Windows/Windshield
Mirrors
Wipers
Truck Coupling / Trailer Hitch / Safety Chains
Other
Unknown
Subfield 2: Motor Vehicle Circumstance 2:

See attributes in Subfield 1


Rationale:

Important for determining the significance of pre-existing problems, including equipment and operation, in motor vehicles involved in crashes that could be useful in determining the need for improvements in manufacturing and consumer alerts.