It is about human talking about a hazard in construction. It is regarding about near miss accident. the question from workers to safety officer, 1.) This lift it not save to use? Answer: How many person of you to use in this passenger hoist, exp: 5 persons. Average of them is 50kg. 50kg x 5 persons = 250kg. Then we use a material weight same around 250kg, then we put that material inside and operate the passenger hoist and see the results. If got any accident that we call near miss accident.