| Title |
A Study on the Construction Cost Index for Calculating Conceptual Estimation : 1970-1999 |
| Authors |
남송현(Nam, Song Hyun) ; 박형근(Park, Hyung Keun) |
| DOI |
https://doi.org/10.12652/Ksce.2020.40.5.0527 |
| Keywords |
과거공사비;공사비지수;개략공사비;다중회귀분석 Past construction cost;Construction cost index;Conceptual estimation;Multiple regression analysis |
| Abstract |
A significant factor in construction work is cost. At early- and advanced-stage design, costs should be calculated to derive realistic cost estimates according to unit price calculation. Based on these estimates, the economic feasibility of construction work is assessed, and whether to proceed is determined. Through the Korea Institute of Civil Engineering and Building Technology, the construction cost index has been calculated by indirect methods after both the producer price index and construction market labor have been reprocessed to easily adjust the price changes of construction costs in Korea, and the Institute has announced it since 2004. As of January 2000, however, the construction cost index was released, and this has a time constraint on the correction and use of past construction cost data to the present moment. Variables were calculated to compute a rough construction cost that utilized past construction costs through surveys of the producer price index and the construction market labor force consisting of the construction cost index. After significant independent variables among the many variables were selected through correlation analysis, the construction cost index from 1970 to 1999 was calculated and presented through multiple regression analysis. This study therefore has prominent significance in terms of proposing a method of calculating rough construction costs that utilize construction costs that pre-date the 2000s. |