What driving action is particularly hazardous on a high-speed highway?

Sudden lane changes are particularly hazardous on a high-speed highway due to several critical factors. High-speed highways are designed for fast-moving traffic, which means that vehicles are traveling at significant speeds. In such an environment, a sudden lane change can create a high risk of collisions, as other drivers may not have enough time to react to the unexpected movement. This sudden action can lead to loss of control of the vehicle or a rear-end collision, especially if the driver changing lanes does not adequately check their blind spots or fails to signal their intentions clearly.

Additionally, the speed at which most vehicles on a highway are traveling means that the time and distance needed for a safe lane change are greatly reduced. Drivers need to maintain a keen awareness of their surroundings and the behaviors of other motorists. Any abrupt maneuver can disrupt the flow of traffic and lead to accidents, significantly increasing the likelihood of dangerous situations on the road.

Other options, while they can contribute to hazards, do not have the same immediate and severe impact on highway safety. For instance, changing music may distract the driver, but it doesn't necessarily affect the movement of the vehicle as dramatically as a sudden lane change. Maintaining speed and proper following distance are essential for safe driving but are relatively standard practices that help to