Define "traffic control devices" used in highway construction.

Traffic control devices play a crucial role in highway construction by ensuring the safety of both construction workers and motorists. This category comprises signs, signals, and various devices designed to regulate, warn, or guide traffic in construction zones.

These devices provide essential information to drivers, indicating changes in traffic patterns, speed limits, or directions, especially when detours or lane closures are implemented due to construction activities. For instance, warning signs might alert motorists to upcoming construction, while guide signs help navigate through altered routes.

The presence and proper use of these devices are vital for minimizing confusion and preventing accidents in areas where normal traffic operations are disrupted by construction work. Overall, they facilitate an organized flow of traffic while prioritizing safety in hazardous conditions.