HighSite establishment often occurs in locations with active vehicle and pedestrian traffic including urban streets, operating car parks, functioning facilities, and adjacent to schools or public areas. Workers installing fencing, signage, and barriers must operate in proximity to moving traffic while handling materials, using tools, and positioning themselves in vulnerable locations near roadways. Vehicles approaching work areas may not anticipate workers' presence, particularly during initial establishment before full traffic controls are implemented. Workers reversing vehicles to deliver materials, positioning temporary facilities, or manoeuvring equipment create strike risks for other workers and the public. Inadequate segregation between work areas and active traffic lanes, insufficient warning signage, poor visibility due to weather or time of day, and driver inattention all contribute to vehicle strike risk. The dynamic nature of establishment with constantly changing site conditions and multiple activities occurring simultaneously increases complexity and risk. Vehicle strikes can result in catastrophic injuries including multiple fractures, internal injuries, head trauma, or fatalities. Pedestrian workers are particularly vulnerable, lacking the protection afforded by vehicle cabs or structures.
Consequence: Serious injuries or fatalities from vehicle strikes including crushing injuries, fractures, head trauma, and internal organ damage; potential for multiple casualty incidents affecting workers and public.
HighTemporary electrical installations during site establishment create multiple electrocution risks including working on energised systems, inadequate earth fault protection, damaged cables and connectors, water ingress to electrical equipment, and overloading of temporary supply systems. Licensed electricians performing installations may work on energised systems during connection to mains supply or existing facility power. Temporary cables are routed across ground surfaces, suspended overhead, or buried shallowly, exposing them to damage from vehicles, equipment, digging, and weather. Connectors and distribution boards may be inadequately weatherproofed creating water ingress pathways. The sequential nature of establishment means some electrical systems may be energised before all installations are complete, creating hazards for other trades working nearby. Inadequate residual current devices (RCDs), missing or damaged earth connections, use of non-compliant equipment, and modification of temporary systems by unqualified persons all create electrocution risk. Electric shock can cause immediate cardiac arrest, severe burns at contact points, secondary injuries from falls triggered by shock, and long-term neurological effects. Electrical incidents in wet conditions or where workers are in contact with conductive structures are particularly dangerous due to enhanced current pathways through the body.
Consequence: Electrocution resulting in cardiac arrest and death; severe electrical burns requiring extensive treatment; falls from height triggered by electric shock; long-term neurological damage; psychological trauma.
HighInstallation of site hoarding, high-level signage, temporary lighting, and security fencing often requires work at height using ladders, elevated work platforms (EWPs), scaffolding, or access to roofs and structures. Workers may operate from ladders while securing hoarding panels, drilling fixings into walls, or installing overhead signage. Elevated work platforms are used for high-level installations but can present stability issues on uneven ground common during site establishment. Roof access may be required for installing site lighting, communications equipment, or surveying site conditions. The temporary nature of this work, combined with time pressures to complete establishment quickly, can result in inadequate fall protection planning and implementation. Ladders may be used inappropriately for tasks requiring more secure access, fall protection equipment may be omitted for 'quick' tasks, or workers may access roofs without edge protection. Unguarded roof edges, fragile roof materials, unstable ladder placements, and inadequate harness anchor points all create fall hazards. Falls from even relatively low heights (2-3 metres) can result in serious injuries including fractures, spinal damage, head injuries, and fatalities. Statistics indicate falls from height cause more construction fatalities than any other hazard type, emphasising the critical importance of fall protection even during temporary establishment activities.
Consequence: Death or permanent disability from falls; spinal injuries causing paralysis; traumatic brain injuries; multiple fractures requiring extended hospitalisation; long-term impacts on workers and families.
MediumSite establishment involves numerous different activities occurring concurrently including fencing installation, electrical connections, plumbing works, facility positioning, signage installation, traffic management, and materials deliveries. Multiple contractors and subcontractors may be working simultaneously in overlapping areas with different hazards, work methods, and safety requirements. This creates coordination challenges including conflicting work sequences, shared access requirements, overhead and underground hazards from different trades, and communication difficulties between separate work groups. For example, excavation for electrical trenches may occur while fencing contractors drive posts nearby, or crane operations positioning temporary facilities may occur adjacent to electricians working on power connections. Inadequate coordination can result in workers being struck by equipment from another trade, energised systems being disturbed by unaware workers, excavations being entered without adequate shoring, or overhead loads being lifted above workers from other trades. The high activity level and time pressure during establishment can result in insufficient prestart coordination and hazard communication between groups. Interface incidents between different trades account for a significant proportion of construction injuries, particularly during mobilisation and demobilisation phases when multiple specialists operate in confined areas.
Consequence: Injuries from struck-by hazards, exposure to energised systems, falls into excavations, or being caught between equipment; incidents affecting workers from multiple trades simultaneously.
MediumSite establishment requires extensive manual handling including lifting and positioning of fencing panels (typically 20-50kg each), hoarding sheets (15-40kg), temporary signage, traffic barriers and cones, electrical equipment, site furniture, and building materials. Workers must manoeuvre these items across uneven ground, lift panels into position, and secure them while working in awkward postures. Temporary buildings and containers require precise positioning using cranes or forklifts, but workers must guide loads, connect components, and secure facilities involving manual handling in close proximity to suspended loads. Unloading delivery trucks involves repetitive lifting and carrying as materials are distributed around site. The physical demands are compounded by time pressures to complete establishment quickly and by working on unprepared surfaces without level, stable footing. Fencing installation in particular creates cumulative strain through repetitive lifting of panels, post driving requiring overhead work, and maintaining awkward postures while securing panels. Poor manual handling technique, inadequate mechanical aids, and sustained physical work without adequate rest periods can result in acute back injuries, shoulder strains, knee damage, and chronic musculoskeletal disorders. Manual handling injuries account for approximately 40% of workers' compensation claims in construction, with site establishment activities contributing significantly to this total.
Consequence: Acute back injuries requiring time off work; shoulder, knee, and wrist injuries; chronic musculoskeletal disorders causing long-term disability; reduced workforce capacity and productivity.