Virginia CDL General Knowledge Practice Test

When driving, watching for traffic and brake lights is crucial because it allows a driver to anticipate the actions of other vehicles. Being aware of brake lights indicates that vehicles in front are slowing down or stopping, which is essential for maintaining a safe following distance and preventing collisions. This focus on traffic behavior helps in making timely decisions, such as adjusting speed or changing lanes, ensuring not just the driver's safety but also that of others on the road.

While road signs and signals are important for understanding legal requirements and navigating the roadway, and weather conditions affect driving performance and safety, they do not provide immediate information about the actions of other drivers. Scenery and surroundings may provide some context but do not offer critical information needed for safe driving. Thus, prioritizing traffic and brake lights ensures that drivers can react appropriately to dynamic road conditions and surrounding vehicles.