Hierarchical Rule‐Based Activity Duration Estimation
Publication: Journal of Construction Engineering and Management
Volume 113, Issue 2
Abstract
Activity durations are often estimated by modifying standard work productivities for specific site and job characteristics. Modifications are typically developed from engineering judgment and past experience. In this paper, an explicit hierarchical rule‐based framework for making such modifications is investigated. By explicitly formulating estimation rules, the factors felt to influence work productivity can be identified and the accuracy of particular modification rules assessed. Alternative estimation methods such as statistical techniques and a hybrid rule‐and‐statistical framework are discussed. A prototype expert system for masonry construction duration estimation, MASON, is described and used to illustrate the rule‐based estimation approach. Facilities in MASON for explanation and productivity improvement analysis are also described.
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Information & Authors
Information
Published In
Journal of Construction Engineering and Management
Volume 113 • Issue 2 • June 1987
Pages: 288 - 301
Copyright
Copyright © 1987 ASCE.
History
Published online: Jun 1, 1987
Published in print: Jun 1987
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