Crane signals are a standardized set of communication methods between the signal person and the crane operator to facilitate safe and efficient operations. These signals are essential for directing the crane's movement, including lifting, lowering, swinging, and stopping. Crane signals can be conveyed using various methods, such as hand gestures, voice commands, audible signals, or advanced technologies like video monitoring systems. The signals must be clearly understood and followed by the crane operator to ensure proper coordination and prevent accidents on construction sites or industrial settings.