Final answer:
Exit signs in public buildings serve to guide individuals to the nearest exit, particularly in emergencies, and are crucial for preventing accidents by facilitating quick and safe evacuation.
Step-by-step explanation:
The purpose of exit signs in public buildings is primarily to guide people to the nearest exit during an emergency, such as a fire
In the case of a critical situation where quick evacuation is necessary, these signs serve as vital indicators that lead occupants to safety, thereby reducing the risk of harm or preventing accidents.
Visibility and clarity are essential, which is why exit signs are designed to be noticeable and easy to read, often illuminated to be effective in power outages or smoke-filled environments.