✓Guardrails have multiple uses, including protecting people from falling and keeping vehicles on the road.
✓Construction: Guardrails protect workers from falling from roofs, balconies, and stairways.
Keeping vehicles on the road
✓Roads: Guardrails protect motorists who have left the roadway by deflecting the vehicle back to the road or slowing it down
✓Bridges: Guardrails protect people and vehicles from falling off the bridge