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Development of project cost contingency estimation model using risk analysis and fuzzy expert system

Idrus, Arazi and Nuruddin, F and Rohman, M.Arif (2010) Development of project cost contingency estimation model using risk analysis and fuzzy expert system. Expert Systems with Applications, Volume (Issue ). pp. 1501-1508.

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Abstract

Contractors traditionally estimate cost contingency based on subjective judgment, such as 5–10% from the cost estimated by considering past similar project. However, such method does not have a sound basis and is difficult to justify or defend. Therefore, more objective methods for estimating project cost contingency have been presented. However, most of the methods still rely on formal modeling techniques, which is not easy to be applied in construction industry. This research proposes a method to estimate cost contingency using a flexible and rational approach that could accommodate contractors’subjective judgment based on risk analysis and fuzzy expert system concept. In this research, the proposed method involved the development of cost contingency model for building and infrastructure projects in Malaysia. According to the validation result, it was found that the predictions given by the system were within 20% accuracy compared to actual cost contingencies.

Item Type:Article
Subjects:T Technology > TH Building construction
Academic Subject Two:Geosciences
Departments / MOR / COE:Departments > Civil Engineering
ID Code:3281
Deposited By: Prof Ir Dr Muhd Fadhil Nuruddin
Deposited On:22 Nov 2010 09:15
Last Modified:20 Mar 2017 07:48

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