The effect of safety system in construction which result on productivity rate a case study: wall tile external building
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The purpose of this research is to study the effect of a safety system provided for wall tile external building activity on productivity. The safety system composed of (1) stable scaffolding system, (2) providing clean and not slip walkways on the scaffold, (3) installation of handrails not less than 0.90 meters in height along sides of the scaffold, (4) installing safety nets around outside perimeters of the scaffolding, (5) indicating working area, (6) installing stairs, (7) providing protection for people who works below, (8) providing tools and equipments for transporting material which are safe and ready for using, and (9) providing personal protective equipment for workers. Cost of the safety system is 79,318 baht for a wall tile area of 385 m2, or approximately 206 baht/m2. Productivity rates for prior and after the used of safety system are 1.91 and 1.85 m2/person/day, respectively. The productivity declines for approximately 3 %. In addition, our study found an impact of work is a height of Building, the wall tile external productivity could decrease for 6 %.
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