When will you see flashing Traffic Warning Lights?

Real-time Warnings: When Emergencies Occur
In road safety, traffic warning lights are the most direct visual warning signal. When the following emergencies occur, they will flash at a high frequency, immediately attracting the driver's attention and forcing them to slow down or stop:
1. Traffic accident scene: When vehicles collide, overturn, or a major accident occurs, the warning lights will quickly illuminate, warning other vehicles to slow down and avoid the area to prevent secondary collisions.
2. Traffic congestion or jams: When congestion occurs on highways or urban roads, the flashing warning lights remind vehicles to slow down, maintain distance, and prevent rear-end collisions.
3. Road facility failure: Such as collapsed road poles, damaged guardrails, or road subsidence, the warning lights will immediately flash, warning vehicles to avoid the dangerous road section.
Planned Construction: Road Maintenance and Repair
In traffic management, the flashing of construction warning lights is a sign of planned engineering work, usually used in conjunction with construction signs to clearly indicate changes in road use:
1. Road maintenance and construction: When performing road repairs, bridge inspections, or asphalt paving, the warning lights will flash, combined with speed limit signs, reminding drivers to slow down.
2. Temporary detours and traffic organization: When a road is temporarily closed or detoured, the flashing warning lights guide vehicles into temporary lanes or detour routes.
Special Facility Reminders: When speed bumps, stop lines, or other traffic facilities are installed on the road, the flashing warning lights serve as supplementary warnings to reinforce the driver's visual memory.