#road safety
- Coupling — The act of hooking and its result; the technical process of coupling, securing, or structurally hanging objects or vehicles. In the context of road safety, the term defines the unforeseen event whereby a moving vehicle clips a pedestrian, cyclist, or fixed roadside element without causing a direct head-on collision.
- Aquaplaning — A dangerous physical and hydrodynamic phenomenon occurring when a vehicle or aircraft rolls over a water-covered surface, consisting of a total loss of tire adhesion due to the formation of a liquid film between the wheel and the road. This structural loss of direct contact negates braking and steering efficiency, leading to a loss of vehicle control.