Warning triangleChina
247. Warning triangle
A warning triangle is a portable reflective safety device used to warn approaching traffic about a stopped, broken-down or crashed vehicle or another obstruction on the road. It should be placed far enough from the hazard to give other drivers time to react and should remain clearly visible. The required distance and situations in which a warning triangle must be used vary between countries, so drivers should know the local rules and keep the triangle easily accessible in the vehicle.
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What is a warning triangle?
A warning triangle is a portable reflective device placed on the road to warn approaching traffic about a stopped vehicle, accident or other hazard.
🔗 gov.uk • Great Britain Highway Code, Annex 6, warning equipment; national guidance example
When should a warning triangle be used?
Use a warning triangle only where the applicable rules permit or require it and where placement is safe. Do not assume it belongs on every road after a breakdown: Great Britain specifically advises against placing one on a motorway.
🔗 gov.uk • Great Britain Highway Code, Annex 6, warning equipment; national guidance example
How far from the vehicle should a warning triangle be placed?
There is no universal placement distance. Check the rules for the country and road type, including whether use is prohibited altogether. For example, Great Britain’s motorway guidance says not to place a warning triangle there; moving it farther away is not the answer.
🔗 gov.uk • Great Britain Highway Code, Annex 6, warning equipment; national guidance example

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