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国際安全衛生センタートップ > 事例研究 > Cases Involving Construction Vehicles

What kind of accident is about to happen?
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?

Look what happened!

When trying to offload the roller, the retaining wall of the site collapsed, causing the truck to tip over and the roller to slide off the back. The operator fell into the waterway with the roller and was pinned beneath it.

Tips for preventing similar accidents
1. Unloading activities should only be performed on flat, solid surfaces.
2. If a vehicle must be parked near a shoulder where the ground is weaker, check the ground and the shoulder area, assign someone to serve as a guide, and park as far away as possible from the shoulder.
3. Be sure to place chock blocks during offloading.
4. When offloading a machine, keep an eye on its center of gravity, and perform all necessary hazard prediction activities in advance.

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