Which action has been identified to reduce hazards in vacant buildings?

Marking buildings with visual cues to indicate hazards is recognized as an effective action to reduce risks associated with vacant structures. This practice enhances safety for first responders as well as the public. When buildings are marked with clear visual cues, it communicates critical information about potential dangers—such as structural instability, hazardous materials, or other risks—that might not be immediately apparent. This allows firefighters and emergency personnel to make informed decisions during an emergency response, fostering a safer working environment.

In contrast, closing off all access points may limit unauthorized entry but does not necessarily communicate specific hazards. Evacuating the surrounding area can be an important safety measure but is more reactionary than preventative. Conducting regular maintenance on a vacant building is beneficial but may not directly address the immediate hazard communication that visual cues provide.