ISO 16715:2014

Overview

ISO 16715:2014 - Cranes - Hand signals used with cranes specifies requirements for standard hand signals used in lifting operations. Its objective is to achieve uniform, unambiguous hand signals-particularly important on projects where personnel from multiple countries or organizations work together. The standard covers general signalling principles and defined signals for vertical and horizontal movements, equipment-related actions and lifting-attachment control.

Key Topics and Requirements

• Scope: Requirements for hand signals used during crane lifting operations.
• Signal categories:
  • General signals (start, stop, emergency stop, cease operation, inching)
  • Vertical movements (raise, lower, raise/lower slowly, indicate vertical distance)
  • Horizontal movements (travel/slew directions, crawler track travel, turnover)
  • Equipment-related movements (main/auxiliary hoist, boom/trolley raise, extend, retract)
  • Lifting-attachment control (e.g., clamshell bucket open/close)
• Core requirements:
  • Signals must be clear, concise and fully understood by crane operators.
  • The signaller must be in a safe position, clearly visible to the operator, and have a clear view of the load or equipment.
  • Only one person shall give signals to the operator (exception: emergency stop).
  • Non‑specific one‑arm signals may use either arm; specific left/right indications are distinct.
  • Signals may be combined where applicable; after some equipment-specific signals other signals apply only to that hoist or attachment.
• Terminology: Uses and references definitions such as slewing (radial horizontal movement with crane base stationary) and travel (movement of the whole crane), referencing ISO 4306-1.

Applications and Who Uses It

ISO 16715:2014 is used to improve safety, communication and interoperability on construction sites, ports, industrial plants and any location using cranes for lifting. Typical users include:

• Crane operators and signallers
• Site managers and lift planners
• Health & safety officers and trainers
• Crane manufacturers and equipment suppliers
• Training providers and competency assessors

Implementing ISO 16715 helps reduce miscommunication during lifts, supports training and competency programs, and facilitates international crew cooperation.

Related Standards

• ISO 4306-1 - Cranes - Vocabulary (referenced normative definitions)
• ISO 15513 - Competency requirements for crane drivers, slingers, signallers and assessors (bibliographic reference)

Keywords: ISO 16715:2014, crane hand signals, hand signals for cranes, lifting operations, crane signaller, crane operation safety, crane signalling standard.