"Road work ahead" is a common traffic sign that indicates construction or maintenance activities are taking place on the road. This sign alerts drivers to be cautious and prepared for potential delays, detours, or changes in traffic patterns. The work may involve repairing pavement, installing new infrastructure, or improving safety features. When drivers see the "road work ahead" sign, they should reduce their speed and pay attention to any additional signs or flaggers. Following these precautions helps ensure the safety of both workers and motorists. It is important to stay alert, as conditions can change quickly in construction zones.