Risk came from occupational health and safety is commonly
occured. Actually, the occupational health and
safety professionals should be expected of risk and they
possessed tools and methods for identifying the possibility
of harm to man at work, and for determining its probability
(Saari, 1995). However, it is difficult to undertake risk
assessment on construction site as the work nature of construction
industry is highly hazardous, quickly changing
and workforce is highly dynamic.