What is indicated when a driver demonstrates sudden or jerky movements while starting or stopping?

The scenario where a driver exhibits sudden or jerky movements while starting or stopping indicates a level of control that is less than optimal. This type of driving behavior suggests that the driver may not be smoothly transitioning between acceleration and braking, which can lead to a rough ride and potential safety issues.

When a driver has fair control, they may be attempting to manage the vehicle but are not doing so with fluidity or precision. Sudden movements can also be a sign of either inadequate experience or improper techniques in handling the vehicle, making it challenging for the driver to maintain stability and comfort. In contrast, excellent or perfect control would exhibit smooth, gradual movements that allow for a seamless response when starting or stopping, promoting both safety and passenger comfort.

Thus, in assessing the situation of sudden or jerky movements, the conclusion of fair control accurately reflects a limitation in the driver's handling abilities, differentiating it from a higher level of proficiency demonstrated by smooth operational maneuvers.