guard rail

US /ˈɡɑːrd reɪl/
UK /ˈɡɑːrd reɪl/
"guard rail" picture
1.

barandilla de seguridad, guardarraíl

a barrier alongside a road, bridge, or other dangerous area to prevent vehicles or people from falling or straying

:
The car crashed into the guard rail on the highway.
El coche chocó contra la barandilla de seguridad en la autopista.
Pedestrians should stay behind the guard rail for safety.
Los peatones deben permanecer detrás de la barandilla de seguridad por seguridad.