The procedure applies to heavy vehicles weighing more than 11800kg (26 000lb) and particularly to those vehicles having two or more articulation joints that allow rotation in a horizontal plane. The procedure pertains to the lateral directional response of multi-articulated vehicles in avoidance maneuvers performed at highway speeds without braking. Purpose- This test procedure is intended to be used for determining the rearward amplification and dynamic off tracking qualities of multi-trailer commercial vehicles (heavy trucks and buses).
SAE J2179-2000 history
2000SAE J2179-2000 A Test for Evaluating the Rearward Amplification of Multi-Articulated Vehicles
1993SAE J2179-1993 A Test for Evaluating the Rearward Amplification of Multi-Articulated Vehicles