Introduction
During recent years we have often shared road crash reports where road users crashed into guardrails and road barriers.
In some incidents, we witnessed rather horrific injuries, and these often create questions regarding these traffic safety systems.
How much thought and planning are behind erecting these guardrails and how do they make our roads safer?
We decided to approach the South African National Roads Agency to gain some insights on guardrails and roadside barriers.
How would we best describe or define a guard rail?
Guardrails form part a larger system known as traffic safety barriers or vehicle restraint systems. Vehicle restraint systems are systems intended to stop or re-direct a vehicle that is leaving the roadway and it is utilized to shield road users from potential hazards alongside the travelled way and should be able to redirect or contain:
An errant vehicle without imposing intolerable vehicle occupant forces;
Vehicles in a...
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