PIREM: A new model for conceptual cost estimation

Yu, W D (2006) PIREM: A new model for conceptual cost estimation. Construction Management and Economics, 24(3), pp. 259-270. ISSN 01446193

Abstract

A new conceptual construction cost estimating method, namely, Principal Item Ratios Estimating Method (PIREM), is presented. The proposed PIREM integrates several existing conceptual estimating methods (including parametric estimating, ratios estimating, and cost significant model) with advanced nonlinear mapping techniques, and adopts a scheme that separates unit prices with the quantities of a cost item. It allows estimators to estimate based on the prevailing unit prices in the marketplace, thus the fluctuation of prices can be reflected on a real-time basis. Two comprehensive case studies were conducted for verification of PIREM. The demonstration case studies show that PIREM is able to provide accurate and the most updated estimates when advanced mapping technologies are incorporated.

Item Type: Article
Uncontrolled Keywords: conceptual cost estimation; nonlinear mapping; parametric estimation; project planning
Index terms: estimating, estimate, estimator, parametric estimating, estimation, cost estimating, construction cost, mapping, project planning, case study
Subjects: spatial and geospatial analysis, data collection methods, financial and cost management, control systems, profession
Topics: Cost Management, Roles and Professions, Research Practice, Project Management
Descriptive scope: 3 PCE

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