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A wire is attached to the hook of a drag shovel with a crane attachment, and is being used to move a steel arch support at a tunnel construction site.
Can you predict what's about to happen? 
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Workers are leveling out the pavement while concrete is being poured into a second-story floor with a concrete pump truck.
Can you predict what's about to happen?
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Workers are assembling a plastic greenhouse. A tractor shovel is being used to move a bundle of pipes for the frame while a worker steadies the bundle.
Can you predict what's about to happen?
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A worker is trying to offload a roller at a work site from the bed of a truck. The work site runs along a waterway.
Can you predict what's about to happen?
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During demolition work, a drag shovel is being used to remove rubble. A worker is spraying water nearby to reduce airborne dust.
Can you predict what's about to happen?
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Dirt has been produced at a nearby construction site and is going to be reused at a rock quarry. A wheel loader is therefore being used to smooth out the piled up dirt.
Can you predict what's about to happen? |
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A worker is raising an aerial lift to install a ventilation duct in the ceiling of a sports stadium over the spectators' stands.
Can you predict what's about to happen? |
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While extracting steel sheet piles, a worker connects the chuck portion of the Vibrohammer to the steel pile, and starts the machine.
Can you predict what's about to happen? |
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To remove a steel plate placed in a rice paddy for construction work, workers attached a wire rope to the hanging hook of the bucket of a drag shovel and pulled it.
Can you predict what's about to happen? |
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A worker is trying to remove an attachment pin to replace the breaker attachment on a hydraulic shovel with a bucket.
Can you predict what's about to happen?
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To load a drag shovel onto a transport vehicle, the bucket is being used as a support to lift the body of the shovel onto the bed of the truck.
Can you predict what's about to happen? |
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An aerial lift truck is being used to perform electrical work near a wall.
Before moving on to the next work site, the worker tries to stow the outriggers using the operating levers on the side of the vehicle.
Can you predict what's about to happen?
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Workers at a construction site are trying to offload steel plates from a truck using slinging clamps and a drag shovel with a crane attachment.
Can you predict what's about to happen?
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When trying to attach furring strips (the base materials for a wall) to a steel frame, the worker is extending his reach from an aerial lift while working alone.
Can you predict what's about to happen?
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Case15 |
After excavating a pile hole using an excavation auger, a worker tries to hang the pile for a temporary placement. Because the site has a weak foundation, the machine is placed on steel support plates.
Can you predict what's about to happen?
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Case16
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Logs are being collected using a bulldozer. To extend the tow wire from the winch of the bulldozer, the operator is trying to start the engine from the step, without actually sitting properly in the operator's seat.
Can you predict what's about to happen?
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Case17
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Workers are loading wet concrete into the bucket of a drag shovel from the chute of a cement truck. One of the workers is standing on the step and scraping out the concrete as it comes down the chute. The operator of the drag shovel is watching concrete coming out of the truck and has stepped out of the operator's seat.
Can you predict what's about to happen?
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The bucket of an aerial lift has gotten caught in the protective netting around a building. The worker is standing on the handrail of the bucket in an attempt to climb onto a beam so he can release it, and is trying to attach his safety belt to the wire on the beam.
Can you predict what's about to happen? |
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During earth pushing work, the operator has stopped his bulldozer on a 15< incline, has risen from his seat, and is stepping on a crawler.
Can you predict what's about to happen?
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During excavation work using a small drag shovel, workers tried to remove a large rock from the excavation site by tying a wire around the rock and pulling it up with the bucket. When the shovel began to wobble, one worker tried to keep the shovel balanced by standing on the back.
Can you predict what's about to happen? |
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Wet concrete for a retaining wall construction project is being loaded into the bucket of a hydraulic shovel. The arm of the shovel, which is parked on the edge of a shoulder, is being extended to pour the concrete into the wall frame. A worker is standing on the lower edge of the frame.
Can you predict what's about to happen?
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Some lumber (bundled square logs) that has been loaded onto a truck is starting to fall off the rear. Workers are trying to use the bucket of a tractor shovel to push the logs back in place using a prop. One worker is riding in the bucket to help do this.
Can you predict what's about to happen? |
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A worker is working on the underside of an elevated bridge (8 m high) on an aerial lift, hanging netting to prevent concrete from falling.
The aerial lift is being moved so that the worker can begin working on the next location.
Can you predict what's about to happen?
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A drag shovel with a crane attachment is being used to lift and move a sewer pipe in a partially sloped work yard, and the workers are trying to lay the pipe on the ground.
Can you predict what's about to happen? |
Case25
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The concrete casting is finished, and a worker is cleaning the inside of the hopper on a concrete pump truck.
To remove the concrete that has solidified in the hopper, the worker has brought the water hose closer to spray water on the equipment while the agitator is still spinning.
Can you predict what's about to happen? |
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Workers are trying to unload a drag shovel from the bed of a two-ton truck that is resting at a construction site location that has a weak foundation.
Two aluminum gangplanks have been placed between the ground and the truck bed.
Can you predict what's about to happen?
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Case27
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The driver of a truck is leaning out of his window to pass documents to the operator of a hydraulic shovel with the engine running that is stopped next to it.
Can you predict what's about to happen? |
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A worker in the bucket of an aerial lift is trying to do some wiring on an overhead crane of a factory building with an uneven floor.
Can you predict what's about to happen?
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Case29
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A clamshell set on a gantry is being used to load dirt collected underground to a truck.
While the signaler is signaling the clamshell operator with a wireless device, he is also signaling a basement level bulldozer by turning a revolving light installed near the clamshell on and off.
Can you predict what's about to happen?
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A worker is performing repairs on a water catchment square (60 x 60 x depth 66 cm) at a site where pavement work is being done. A roller is performing surface compaction in the same area.
Can you predict what's about to happen?
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Case31
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A concrete pump truck with its outriggers extended is being used to pour concrete at a construction site at which the foundation is relatively weak.
A worker is casting the concrete by supporting the boom end (nozzle).
Can you predict what's about to happen?
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