GuardrailFrance
An introduction to the traffic rules and road signs of France. Learn about driving, road safety and much more in our illustrated book, with answers to frequently asked questions.
For informational purposes only. Always follow official regulations. Some content and images were created with AI assistance.
234. Guardrail
A guardrail is a roadside safety barrier designed to reduce the consequences of a vehicle leaving the roadway. It can help redirect or contain an errant vehicle and separate traffic from hazards such as steep slopes, bridge structures, fixed objects or opposing traffic.
Guardrails are intended to reduce the severity of a collision rather than prevent every crash. Their design, location and construction depend on the road, traffic conditions and the hazard they are intended to protect against.
Wikimedia.org • Marc Mongenet • CC BY-SA
Does a guardrail make leaving the road safe?
No. Hitting a guardrail can still cause serious injury or vehicle damage. The barrier is used when it is expected to reduce the consequences compared with reaching the hazard located behind it.

Traffic rules
France