Pedestrian Workers Struck by Operating Forklifts
highForklifts operating in areas shared with pedestrian workers create struck-by hazards causing fatal crushing injuries when workers are hit by traveling forklifts, pinned between forklifts and fixed objects, or struck by loads protruding from forks during transport. Limited visibility from operator positions, particularly when carrying loads that obscure forward vision, prevents operators from seeing workers in travel paths. The mass of loaded forklifts (often 5-8 tonnes total including machine and load) creates momentum that cannot be stopped quickly even at slow speeds, with stopping distances of 3-5 metres typical even when operators brake immediately upon seeing hazards. Pedestrian workers focused on their tasks may not hear approaching forklifts despite reversing alarms, particularly in noisy construction or industrial environments. Congested work areas with multiple activities occurring simultaneously create situations where workers must enter forklift operating areas to access their work locations, equipment, or facilities. Reversing operations create particular hazards as operators have very limited rear visibility even with mirrors, with workers behind forklifts invisible to operators. The routine nature of forklift movements can create complacency among both operators and pedestrians, with reduced vigilance increasing incident likelihood.
Consequence: Fatal crushing injuries when pedestrians are run over by forklifts or pinned between forklifts and structures, serious injuries including broken bones and internal damage from being struck by moving forklifts, head and spinal injuries when workers are knocked down and struck by loads or equipment, and psychological trauma for operators involved in struck-by incidents even when not at fault.
Forklift Tip-Over from Overloading or Instability
highForklifts can tip forward over front wheels when loads exceed capacity limits or when operating on slopes, and can tip sideways when turning with elevated loads, traveling across slopes, or operating on uneven ground. The stability triangle principle governs forklift stability—three-wheeled forklifts have stability triangle formed by two front wheels and single rear wheel pivot point, while four-wheeled forklifts have rectangular stability base. The combined center of gravity of forklift plus load must remain within this stability zone to prevent tip-over. Factors causing tip-over include: exceeding rated capacity for load weight and load center distance, lifting loads to maximum height which raises center of gravity, operating with loads extended forward beyond normal carry position, traveling with elevated loads rather than maintaining low carry position, operating on slopes particularly when traveling across slope rather than up/down, turning at excessive speeds creating lateral forces, operating on soft or uneven ground causing differential wheel heights, and sudden stops or direction changes causing momentum-induced instability. Attachments such as side-shifters, load stabilizers, or specialized forks change the forklift's capacity and stability characteristics requiring capacity recalculation. Tip-over incidents occur with little warning and happen so quickly operators cannot react—forward tip-overs throw operators onto steering wheels or through overhead guards, while lateral tip-overs trap operators as ROPS contacts ground.
Consequence: Fatal crushing of operators during tip-over incidents particularly if operators are not wearing seatbelts and are ejected from operator compartments, serious crush injuries to operators even with ROPS protection due to violent impact forces during rollover, fatal injuries to nearby workers struck by tipping forklifts or falling loads, and destruction of forklifts and loads with equipment replacement costs of $50,000-$150,000 per incident.
Loads Falling from Elevated Forks
highLoads carried on elevated forks can fall forward off forks, slide backward toward operators, or tip sideways during transport if not properly secured or positioned. Palletised loads placed unevenly on forks with unbalanced weight distribution create tipping moments during travel particularly when turning or braking. Damaged pallets with broken boards or stringers can collapse during lifting or transport, dropping contents from height. Shrink-wrapped or strapped loads can have inadequate securing allowing individual items to shift or fall even when overall load remains on forks. Fork positioning with unequal penetration depth (one fork deeper into load than other) creates lateral imbalance causing loads to slide sideways off forks during travel. Traveling with loads elevated increases drop height and impact energy if loads fall—loads dropped from 3-metre heights can penetrate vehicle cabs, crush personnel, and cause severe structural damage. Load backrests prevent most backward load movement but cannot prevent forward or lateral load displacement. Sudden stops or starts create inertial forces that can dislodge poorly secured loads. Stacking operations create hazards when placing loads onto existing stacks—misjudging placement can cause loads to fall from stack heights of 5-7 metres in high-bay warehouses.
Consequence: Fatal crushing injuries when falling loads strike workers below or in adjacent areas, serious injuries from partial load collapse where portion of load falls striking workers, product damage potentially totaling hundreds of thousands of dollars for valuable construction materials or equipment, and vehicle damage when loads fall onto delivery trucks or light vehicles positioned under forklifts during loading operations.
Forklift Collision with Structures and Racking
mediumForklifts operating in warehouses with racked storage or on construction sites with temporary structures can collide with racking uprights, building columns, doorways, and other fixed objects. Racking system collisions are particularly dangerous as damage to uprights can cause catastrophic rack collapse with tonnes of stored materials falling from height. Even minor impacts to rack uprights can cause structural damage not immediately visible, with racks failing hours or days after impact when loaded. Fork impacts to lower rack beams during insertion or extraction can dislodge beams causing loads to fall. Doorway and corridor collisions occur when operators misjudge clearances, particularly when carrying wide loads or using attachments extending beyond standard fork widths. Overhead clearance impacts occur when masts contact overhead structures, pipes, or cables during lifting operations. The mast's vertical movement means overhead clearances must be assessed throughout the full range of lift heights. Construction site collisions include impacts with scaffolding, temporary fencing, materials stored near traffic routes, and equipment parked in operating areas. Each collision risks damaging the forklift's hydraulic cylinders, mast structures, or steering components, potentially causing mechanical failures during subsequent operations.
Consequence: Catastrophic rack collapse causing multiple fatalities when tonnes of stored materials fall onto workers and forklifts below, serious injuries from partial rack collapse or individual loads falling from damaged racks, forklift damage requiring expensive repairs or equipment replacement, product damage from impacts or collapses, and facility downtime while damaged racking is inspected, certified safe, or replaced.
Visibility Impairment and Blind Spots
mediumForklift operators face significant visibility challenges reducing their ability to see hazards, pedestrians, and obstacles in their path. Carrying loads on forks obscures forward visibility, with bulky or tall loads completely blocking operators' forward sightlines requiring reverse travel for visibility. The mast structure and overhead guard create visual obstructions even without loads. Rear visibility is extremely limited, with operators having only small mirrors providing restricted view behind equipment. Environmental conditions including dust in warehouses or construction sites, rain on windows, sun glare on reflective surfaces, and darkness in poorly-lit areas compound visibility problems. Congested work areas mean hazards constantly move into and out of operators' fields of view, requiring continuous scanning and attention. Forklift operational tasks including checking load position, operating hydraulic controls, and monitoring load stability divide operators' attention away from traffic and pedestrian awareness. Fatigue during long shifts reduces visual scanning effectiveness and increases reaction times to hazards that do come into view. Complacency from routine operations can cause operators to reduce vigilance, making assumptions about clear paths rather than actively verifying through visual scanning.
Consequence: Pedestrian struck-by incidents occurring when operators reverse without seeing workers behind equipment, collisions with other forklifts or mobile plant operating in same areas, impacts with stationary objects including parked vehicles, racking, and structures, and loads striking overhead obstacles causing loads to fall or equipment to tip backward from impact forces.
Operating on Slopes and Uneven Ground
mediumConstruction site operations frequently require forklifts to operate on slopes, rough ground, and uneven surfaces that significantly affect stability and control. Operating across slopes creates lateral tip-over risks particularly when carrying loads, with tip-over threshold as low as 5-7 degrees when loaded depending on load height and position. Traveling uphill with loads reduces rear wheel traction causing steering difficulties and potential loss of control on descents. Traveling downhill facing forward with loads creates forward instability as load weight shifts forward, reducing rear wheel contact and steering effectiveness. Uneven ground causes one wheel to lift reducing stability triangle to linear contact on remaining two wheels, dramatically increasing tip-over likelihood. Soft ground including mud, sand, or inadequately compacted fill can cause wheels to sink creating sudden instability or causing forklifts to become bogged requiring recovery. Obstacles including rocks, timber, debris, and curbs can cause forklifts to bounce or tilt suddenly, dislodging loads or causing tip-over. Temporary ramps used for accessing different levels may have inadequate load capacity for loaded forklifts, insufficient width for safe travel with clearances, or excessive gradients beyond safe operating limits.
Consequence: Forklift tip-overs crushing operators and nearby workers, loss of control on slopes causing collisions with pedestrians or structures downhill, loads falling from forks during travel over uneven ground, forklifts becoming stuck requiring expensive recovery operations and disrupting site logistics, and suspension or steering damage from repeated impacts on rough ground requiring equipment repair.