How can a driver minimize the risk of a rear-end collision while driving a combination vehicle?

Maintaining a safe following distance and adjusting for traffic conditions is essential for minimizing the risk of a rear-end collision when driving a combination vehicle. This practice allows the driver to have adequate time to react to changes in traffic flow, such as sudden stops or slowdowns. A safe following distance provides not only a buffer zone for collision avoidance but also enables the driver to gauge the behavior of vehicles ahead, increasing situational awareness.

Adjusting for traffic conditions means being aware of factors like weather, road surface quality, and the behavior of surrounding vehicles. For example, in poor weather, the stopping distance required increases, so a greater following distance is necessary to ensure safety. By consistently assessing and modifying driving behavior according to these conditions, a driver can significantly reduce the likelihood of being involved in rear-end collisions.

The other options do not contribute effectively to minimizing this risk. Frequently switching lanes can lead to unpredictable driving patterns that may confuse other drivers or eliminate safe buffers. Using the vehicle's horn as a signal might not provide any real benefit in preventing collisions and can create distractions. Driving at higher speeds typically reduces the time available for stopping and increases the severity of any potential collision, further heightening the risk.