Efficient safety management for subcontractor at construction sites

The present research seeks to offer an in-depth analysis of safety management cost that is handed down to subcontractor by its general contractor. In so doing, this research will thoroughly evaluate how safety management cost is used and handled by subcontractor and present an overview of the intricate relation between construction safety standard and its safety management cost. Only two of ten scaffolders continued to work until their work finished at one construction site while eight of them moved from one work site to another. Consequently, a general contractor could not provide more effective safety training. Eventually, the same training contents had been administered to no avail. This questionnaire survey has been administered to the CEO who is working directly at a construction site as a subcontractor in order to find out the currently occurring problems, and the possible solution. 85 percent of the respondents replied that the lowest bidder contract system is the first reason for not receiving an order. Therefore, the current bidding and awarding of a contract system cannot contribute to establishing reasonable safety management cost for subcontract works. Questionnaire survey result was verified by kappa and Annova analysis. It is shown that they are P-value = 0, 000, DF = 1, Chi-sq = 43,561. A verification chi-square was made for reasonability of safety management cost which subcontractors are spending based on the subcontract amount received from a general contractor. kappa(2) (kai analysis) test (chi-square test) shows that p-value is "0,000" Therefore, null hypothesis is disregarded. It is safe to assume that the subcontractor's allocation of their safety management cost depends on how much of safety management cost the subcontractor receives from its general contractor. The insufficient amount of safety management cost, as provided by general contractor, may be due to the undervalued safety management cost received by the general contractor upon signing of the contract for which the general contractor's presence was needed in the first place. Consequently, there must be some sort of a mechanism to evaluate, analyze and improve the relaying of safety management cost between general contractor and its subcontractor(s). It is thought that establishment of a feedback system between awarding system of a general contractor with reasonable contract amount and subcontractor is a key method to ensure subcontractor's safety cost.