Cost Estimation Model Using Modified Parameters for Construction Projects

Construction projects require huge amounts of capital and have many risk factors due to the unique industry characteristics. For a project to be successful, accurate cost estimation during the design phase is very important. Thus, this research aims to develop a cost estimation model where a modification method integrates influential factors with significant parameters. This study identified a modified parameter-making process, which integrates many influential factors into a small number of significant parameters. The proposed model estimates the cost using quantity-based modified parameters multiplied by their price. A case study was conducted with 24-residence building project, and the estimation accuracy of the suggested method and a CBR model were compared. The proposed model achieved higher overall cost-estimation accuracy and stability. A large number of influence factors can be modified as simple representatives and overcome the limitations of a conventional cost estimation model. The paper originality relates to providing a modified parameter-making process to enhance reliability of a cost estimation. In addition, the suggested cost model can actively respond to the iterative requirements of recalculation of the cost.

[1]  Christopher K. Riesbeck,et al.  Inside Case-Based Reasoning , 1989 .

[2]  Muhammad T. Hatamleh,et al.  Factors affecting the accuracy of cost estimate: case of Jordan , 2018 .

[3]  Martin Skitmore,et al.  Drivers of the accuracy of developers’ early stage cost estimates in residential construction , 2016 .

[4]  J. M. Castelain,et al.  Cost Estimation During Design Step: Parametric Method versus Case Based Reasoning Method , 1999 .

[5]  Gwang-Hee Kim,et al.  Comparing Cost Prediction Methods for Apartment Housing Projects: CBR versus ANN , 2005 .

[6]  Kwonsik Song,et al.  Covariance effect analysis of similarity measurement methods for early construction cost estimation using case-based reasoning , 2017 .

[7]  Robert I. Carr.  Cost-Estimating Principles , 1989 .

[8]  Sangyong Kim.  Interval Estimation of Construction Cost Using Case-Based Reasoning and Genetic Algorithms , 2012 .

[9]  Sabah Alkass,et al.  Computer-Integrated System for Estimating the Costs of Building Projects , 2007 .

[10]  Chang-Taek Hyun,et al.  A CBR-based hybrid model for predicting a construction duration and cost based on project characteristics in multi-family housing projects , 2010 .

[11]  Kyung In Kang,et al.  A case-based reasoning cost estimating model using experience by analytic hierarchy process , 2007 .

[12]  Jaeyoul Chun,et al.  Cost Estimating Methods for RC Structures by Quantity Takeoff and Quantity Prediction in the Design Development Stage , 2015 .

[13]  Adrian J. Smith.  Estimating, Tendering and Bidding for Construction , 1995 .

[14]  Chang-Taek Hyun,et al.  A Study on the Development of a Cost Model Based on the Owner's Decision Making at the Early Stages of a Construction Project , 2010 .

[15]  Nie-Jia Yau,et al.  Case‐Based Reasoning in Construction Management , 1998 .

[16]  Andrew Whyte,et al.  Evaluation of non-cost factors affecting the life cycle cost: an exploratory study , 2016 .

[17]  Agnar Aamodt,et al.  Case-Based Reasoning: Foundational Issues, Methodological Variations, and System Approaches , 1994, AI Commun..

[18]  Paul Teicholz.  Forecasting Final Cost and Budget of Construction Projects , 1993 .

[19]  Hyun-Soo Lee,et al.  Cost estimation model for building projects using case-based reasoning , 2011 .

[20]  M. Porter.  Competitive Advantage: Creating and Sustaining Superior Performance , 1985 .

[21]  Samuel Famiyeh,et al.  Major causes of construction time and cost overruns , 2017 .

[22]  Joseph Ahn,et al.  Military Facility Cost Estimation System Using Case-Based Reasoning in Korea , 2011, J. Comput. Civ. Eng..

[23]  Brian Everitt,et al.  Miscellaneous Clustering Methods , 2011 .

[24]  Richard Kirkham.  Ferry and Brandon's Cost Planning of Buildings , 2007 .

[25]  Sevgi Zeynep Dogan,et al.  Determining Attribute Weights in a CBR Model for Early Cost Prediction of Structural Systems , 2006 .

[26]  Akintola Akintoye,et al.  A survey of current cost estimating practices in the UK , 2000 .

[27]  Ratnasamy Muniandy,et al.  Construction tender price estimation standardization (TPES) in Malaysia , 2018 .