Guardrail (disambiguation)

Guardrail can refer to

Guard rail, a system designed to keep people or vehicles from (in most cases unintentionally) straying into dangerous or off-limits areas.
Guard rail (or guardrail) is another term used in North America to refer to traffic barriers that are installed on road sides or medians (central reservations) for automobile safety
Guard rails (railroad) installed parallel to trackbed rails, for railway safety
RC-12 Guardrail, a U.S. Army intelligence-gathering aircraft based on the C-12 Huron
Roof edge protection, rails installed on roofs to protect construction and roofing workers

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