What does off tracking refer to in terms of vehicle movement?

Off tracking refers specifically to the phenomenon where the rear wheels of a vehicle follow a different path than the front wheels during a turn. This is particularly noticeable in larger vehicles such as trucks and trailers due to their length and the way they handle turns.

When a vehicle goes around a corner, the front wheels take a narrower path than the rear wheels, which can lead to the rear wheels following an outside route. This difference in paths can cause the rear wheels to "track off" from the path of the front wheels. Understanding off tracking is critical for safe vehicle operation, especially for drivers of large trucks, as it affects clearance and positioning when navigating turns and intersections.

The other options, while mentioning related vehicle movements, do not accurately describe the concept of off tracking. They involve aspects of vehicle dynamics that do not specifically capture the relationship between the paths of front and rear wheels during turns.