Accident Prone Zone Sign

Shape: Equilateral triangle (pointing up) · Colour: Yellow/white with red border

This stretch has a high history of road accidents — extra caution is mandatory.

What It Means

India's National Highways Authority and state road departments maintain a database of "black spots" — road sections where five or more accidents or ten or more casualties have occurred over a defined period. These locations are posted with Accident Prone Zone signs. They exist because of geometry (blind curves, sudden narrowing), surface issues (perennial potholes, flooding), or traffic pattern problems (unmarked intersections, undisciplined pedestrians). The Ministry of Road Transport has committed to eliminating the top 1,000 black spots across national highways.

📍 Where You'll See It

On road sections with a documented accident history, often in combination with other warning signs and advisory speed boards.

✅ What You Must Do

Reduce speed significantly. Heighten alertness. Observe all advisory signs in the zone. Do not use mobile devices.

⚠️ Common Mistake

Treating the sign as a recommendation rather than a serious statistical warning. Black spot designations are based on real deaths, not hypothetical risk.