Texas Department of Public Safety Practice Exam

Before merging onto the highway, drivers must yield to oncoming traffic. This is crucial for maintaining safety and ensuring that drivers do not create hazardous situations by forcing their way into high-speed traffic. Highways are typically designed for heavier and faster traffic flows, and understanding right-of-way rules is key to smoothly entering this environment.

Yielding allows drivers to assess the speed and spacing of vehicles already on the highway, enabling them to merge safely without disrupting the flow of traffic. Proper yielding can prevent collisions and contribute to a more orderly merging process.

The other choices, while relevant to different aspects of driving, do not align with the primary responsibility of drivers as they approach a highway merge. For instance, matching traffic speed is important, but it should be done after yielding. Changing lanes immediately neglects the need to ensure it is safe to do so, and signaling after merging implies a lack of communication before entering the highway, which could confuse other drivers and compromise safety.