What do underground signs mean?

Answer 1

Underground signs, often found in urban environments, typically indicate the presence of subterranean infrastructure such as utilities, tunnels, or transit systems. They serve as warnings or information for construction workers, engineers, and the public to ensure safety and prevent accidental damage to these hidden systems. The signs may also provide directions, indicate access points, or mark areas that require caution. Understanding these signs is crucial for maintaining safety in areas where underground work is taking place.