Cranes. Safe use. Tower cranes|Materials handling operations, Ropes, Hand signals, Lifting, Materials handling, Legislation, Wire ropes, Safety devices, Mechanical testing, Operators (personnel), Lifting equipment, Control signals, Inspection, Materials handling equipment, Safety measures, Construction equipment, Safe working load, Occupational safety, Demolition, Selection, Terminal fittings (ropes), Maintenance, Construction workers, Cranes, Lifting chains, Installation, Siting, Defects, Erecting (construction operation)