Glossary of Semi Truck Crash Terms
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Walking Beam Suspension: Type of truck and
tractor rear suspension consisting of two beams, one
at each side of the chassis, which pivot in the
center and connect at the front to one axle of a
tandem and at the rear to the other axle.
WIM (Weigh-In-Motion): Technology for
determining a vehicle's weight without requiring it
to come to a complete stop.



