Cost assessment model for sustainable health and safety management of high-rise residential buildings in Korea

Abstract

The accident rate in the Korean construction industry is much higher compared to the one in other industries. One of the main reasons for this problem is the health and safety management cost (HSC) estimation method which does not reflect the project features at construction sites. In Korea, health and safety management cost is estimated by applying a legally designated ratio in proportion to construction cost without reflecting construction features, such as the building’s shape, number of floors, and construction period. However, such a method does not fulfill the cost for the gradually strengthening safety management of high-rise residential buildings. Therefore, the objective of this paper is to develop a cost assessment model for sustainable health and safety management of high-rise residential buildings. For this purpose, actual data of 23 completed projects were collected and analyzed to identify problems and influence factors of HSC assessment and to establish a regression model. By applying the model established for five new sites as a case, its validation was verified. The results of this study will be utilized as reference data for the HSC estimation method and its relevant policy establishment.

Keywords

• health and safety management
• cost assessment
• cost unbalance
• high-rise residential building
• regression model