a physical structure, such as a fence, barricade, or wall metal, wood, or concrete can vary in height may have spikes or barbed wire may have a gate or other openings may be painted or have signage
barrier which is a physical structure, such as a fence, barricade, or wall barrier which has metal, wood, or concrete barrier which can vary in height barrier which may have spikes or barbed wire barrier which may have a gate or other openings barrier which may be painted or have signage