What is the characteristic of Type D lights?

Type D lights are characterized by high visibility 360-degree coverage. This feature is crucial for traffic control and safety, as it ensures that the lights can be seen from all directions, making it effective for alerting drivers and pedestrians about potential hazards or work zones. The ability to provide a full range of visibility is essential in reducing accidents in areas where traffic patterns may be unpredictable or where visibility is limited. This characteristic enhances the safety of both flaggers and road users by ensuring that everyone in the vicinity can be easily alerted to any changes in traffic conditions or work activities.