Which factor is not considered when determining the off-track of rear wheels?

The determination of the off-track of rear wheels primarily takes into account the physical characteristics and the environment in which the vehicle operates. The layout of the streets, including curves, turns, and intersections, plays a significant role in how the rear wheels follow the path of the vehicle. The length of the vehicle is also crucial since longer vehicles have a greater turning radius and, consequently, a different off-track pattern. Traffic at the intersection can impact maneuverability and turning dynamics, but it does not directly influence the calculation of off-track distance.

Speed of the vehicle, while it may influence how quickly a vehicle can navigate through a turn or an intersection, does not affect the actual geometry of off-track. The physical characteristics are fixed regardless of how fast the vehicle is traveling; thus, speed is not a factor in determining the off-track measurements of rear wheels.