What type of notification do construction signs provide in a work zone?

Construction signs serve as visual alerts for traffic changes, making this the correct choice. These signs are strategically placed in work zones to guide drivers through areas where road conditions, lane configurations, or speed limits may be altered due to construction activities. They help ensure the safety of both drivers and construction workers by clearly indicating that extra caution is required, and they communicate necessary adjustments that drivers need to make in real-time while navigating through the work zone.

In contrast, while information about worker safety might be a consideration on some signs, it is not the primary function of construction signs. Signs might mention details about construction work being done or provide information on road closures and detours, but their primary role is to alert drivers to immediate changes in traffic patterns and ensure safe passage through potentially hazardous areas.