On July 25, 2008, 15-year-old Andrew James was working as a labourer for Interlake Paving in Stony Mountain, Manitoba. Interlake, a small company owned by Gerald Shepell, had been contracted to pave a parking lot. James was standing on the box of a semi-trailer, scooping out asphalt with a shovel. The trailer gate unexpectedly swung open, shaking the truck. James lost his footing and fell into the asphalt in the trailer, which quickly poured out through the trailer gate onto the ground, burying him. James died almost immediately from the intense heat of the asphalt. Shepell tried to dig James out, sustaining severe burns to his own hands, arms, feet, and legs. Shepell later pled guilty to breaches of the Workplace Safety and Health Act and the Employment Standards Code (James was under-age) and was fined 34,000.
How would you prioritize the identified hazards?