Ordered Weighted Average optimization in Multiobjective Spanning Tree Problem
Rework adversely impacts the performance of building projects. In this study, data were analyzed from 788 construction incidents in 40 Spanish building projects to determine the effects of project and managerial characteristics on rework costs. Finally, regression analysis was used to understand the...
| Autores: | , , , |
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| Tipo de recurso: | artículo |
| Fecha de publicación: | 2017 |
| País: | España |
| Institución: | Universitat Politècnica de Catalunya (UPC) |
| Repositorio: | UPCommons. Portal del coneixement obert de la UPC |
| Idioma: | inglés |
| OAI Identifier: | oai:upcommons.upc.edu:2117/113316 |
| Acceso en línea: | https://hdl.handle.net/2117/113316 https://dx.doi.org/10.1016/j.ejor.2016.10.016 |
| Access Level: | acceso abierto |
| Palabra clave: | Combinatorial analysis Combinatorial probabilities Combinatorial optimization Multiobjective optimization Ordered median Ordered Weighted Average Spanning trees Combinatòria Probabilitats Classificació AMS::05 Combinatorics::05C Graph theory Classificació AMS::60 Probability theory and stochastic processes::60C05 Combinatorial probability Àrees temàtiques de la UPC::Matemàtiques i estadística::Matemàtica discreta::Combinatòria Àrees temàtiques de la UPC::Matemàtiques i estadística::Probabilitat |
| Sumario: | Rework adversely impacts the performance of building projects. In this study, data were analyzed from 788 construction incidents in 40 Spanish building projects to determine the effects of project and managerial characteristics on rework costs. Finally, regression analysis was used to understand the relationships among contributing factors and to develop a model for rework prediction. Interestingly, the rework prediction model showed that only the original contract value (OCV) and the project location in relation to the company’s headquarters contributed to the regression model. Project type, type of organization, type of contract, and original contract duration (OCD), which represents the magnitude and complexity of a project, were represented by the OCV. This model for rework prediction based on original project conditions enables strategies to be put in place prior to the start of construction, to minimize uncertainties, to reduce impacts on project cost and schedule, and, thus, to improve productivity. |
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