| Title |
Conceptual Cost Estimating System Development for Public Apartment Projects |
| Authors |
Lee, Hyun-Soo ; Lee, Heung-Keun ; Park, Moonseo ; Kim, Sooyoung ; Ahn, Joseph |
| DOI |
http://dx.doi.org/10.6106/KJCEM.2012.13.4.152 |
| Keywords |
Cost Estimation ; Case-Based Reasoning(CBR) ; Public Apartment ; System ; Conceptual Phase |
| Abstract |
At the conceptual phase of a construction project, estimated construction cost is very important as it significantly influences the owner's decision-making. Accurate cost estimating, in the early stage of a public construction project, serves as a critical factor because initial decision-making effects the final cost of a construction project. However in the cases of Korean public apartment projects, excluding a few of the public owners, there is a problem in properly estimating construction cost due to the lack of construction cost estimating system. Thus, this research developed a public apartment cost estimating system using case-based reasoning that was suggested by a previous research with 66 cases of Korean public apartment projects. Based on the system experiments involving 19 public officers and 10 cases of Korean public apartment projects, the effectiveness of the system in terms of estimation accuracy and user-friendly was confirmed. As a result, the developed system has an error range of 1.47% to 13.74% and mean of 6.15%. In addition, the system was evaluated that it could greatly improve the current estimation task of public officers. Consequently, the results of this research can be used as a foundation for a technological advance in estimating construction cost and improving the accuracy and consistency of construction cost estimation. |