What effect do reflective tape and signs have in work zones?

Answer: B — They enhance visibility

Reflective tape and signs play a crucial role in work zones by enhancing visibility. In environments where roadwork is present, visibility becomes paramount for ensuring the safety of both workers and motorists. Reflective materials are designed to bounce back light, making them visible in low light conditions or during inclement weather. This characteristic is essential for drawing attention to hazards, detours, or lane restrictions, thereby aiding drivers in making informed decisions as they navigate through work zones. The use of reflective signage can significantly reduce the risk of accidents by allowing drivers to become aware of changes in roadway conditions in advance. In contrast, other options do not accurately reflect the significance and function of reflective materials in work zones. For example, stating they confuse drivers overlooks their intended purpose of providing clear and visible guidance. Similarly, describing them as unnecessary fails to recognize their vital role in promoting safety. Finally, suggesting that reflective tape and signs could replace flaggers ignores the fact that flaggers are crucial for direct traffic control and communication, which is essential in managing vehicle flow during construction activities.