yellow striped caution tape warning sign barricade exclusion zone preventing from public access

access accident aid alert area attention background banner barricade beware black border building caution construction control danger dangerous defocused design equipment excavator exclusion extinguisher field fire first forbidden hazard hazardous hot icon illustration industrial industry information instruction isolated kit line message orange oxy preventing protection public restricted risk safety security sign stop strip stripe striped symbol tape using wall warning white work worker workplace yellow zone