Which of the following is NOT a proper behavior when driving in heavy traffic?

Driving aggressively to change lanes is not a proper behavior when navigating heavy traffic. In any driving situation, especially in heavy traffic, safety should be the foremost concern. Aggressive driving can lead to unsafe maneuvers, increasing the likelihood of collisions and road rage incidents. It disregards both the safety of the driver and other road users, ultimately contributing to a more chaotic driving environment.

On the other hand, maintaining a safe following distance is crucial as it allows for adequate reaction time in case of sudden stops or slowdowns. Being alert for possible stops helps drivers prepare for changes in traffic conditions, while signaling intentions clearly communicates a driver's actions to others, enhancing overall safety on the road. All these behaviors contribute to a safer driving experience, while aggressive lane changing typically detracts from it, making it the inappropriate choice in heavy traffic conditions.