Steep Ascent Sign
Shape: Equilateral triangle (pointing up) · Colour: Yellow/white with red border
A steep uphill gradient lies ahead.
What It Means
Steep ascent signs (often with a percentage gradient shown, like "1:10" or "10%") warn of uphill stretches that significantly reduce vehicle performance. Heavy vehicles may slow dramatically on ascents; underpowered vehicles may stall. Ascending vehicles also have reduced visibility over the crest. Overtaking on or near an ascent is particularly dangerous because the vehicle ahead moves slowly but the oncoming descent brings fast traffic.
📍 Where You'll See It
On ghats, mountain passes, hilly highways, and roads with gradients above 8–10%.
✅ What You Must Do
Shift to a lower gear before the ascent begins — do not wait until speed drops. Heavy vehicles should not attempt overtaking. Maintain steady throttle.
⚠️ Common Mistake
Shifting to neutral or disengaging the clutch on an ascent to "save fuel" — this removes engine braking control and is dangerous.
⚖️ Legal Note
No specific sign violation, but stalling/stopping on a blind ascent creates hazard. If you must stop, use hazard lights immediately.
Frequently Asked Questions
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Other Cautionary Signs
School Ahead
A school is nearby. Children may be crossing or walking on or near the road.
Pedestrian Crossing
A pedestrian crossing (zebra crossing) is ahead. Pedestrians have right of way.
Narrow Road Ahead
The road narrows significantly ahead — from both sides. Reduced width for the oncoming stretch.
Steep Descent
A steep downhill gradient lies ahead.
Slippery Road
The road surface is slippery — due to rain, oil, loose gravel, or mud.
Road Hump
A speed breaker or road hump is present on the road ahead.