Logistical model to approximate the S Curve of the planning of sewage projects

Authors

DOI:

https://doi.org/10.13140/RG.2.2.22509.33769

Keywords:

S curve, logistic equation, construction projects planning, control of works

Abstract

The engineering projects have a plan of activities to be carried out in an estimated initial time, which is contrasted with the real time that the execution of the project took. This initial plan is of utmost importance for both the builder and the contracting entity of the work, since this represents a direct relationship of the costs of each stage and the time they demand. The graphic representation of this relationship is adopted as a planning resource, and its form is similar to the S curve. On this graph, it can be seen that at the beginning of the project the accumulated costs are increasing, and at the end of the project it is observed that they decrease. For these reasons, this paper presents a logistic equation model that predicts the planning of a sewer construction project based on a given budget for its execution and the estimated initial time. The model is constructed from a representative sample of sewerage projects executed in the province of Pichincha, and is validated using other that not taken into account in said sample. The model proposed in this paper has as an added value its usefulness in decision-making by public entities because it provides a more accurate estimate of the project's valued timeline

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Author Biographies

Juan Carlos Osorio López, Pontificia Universidad Católica del Ecuador. Ecuador

Research Professor at the Pontifical Catholic University of Ecuador, Faculty of Natural and Exact Sciences, Ecuador, Mail: JCOSORIO@puce.edu.ec

Juan Enrique Merizalde Aguirre, Pontificia Universidad Católica del Ecuador. Ecuador

Research Professor at the Pontifical Catholic University of Ecuador, Faculty of Engineering, Ecuador and the Central University of Ecuador, Faculty of Engineering Physical and Mathematical Sciences, Ecuador, Mail: JEMERIZALDE@uce.edu.ec

Fernando Francisco Castro Carrera, Pontificia Universidad Católica del Ecuador. Ecuador

Research Professor at the Pontifical Catholic University of Ecuador, School of Engineering, Ecuador, Email: FFCASTRO@puce.edu.ec

Edwin Patricio Castro Merino, Pontificia Universidad Católica del Ecuador. Ecuador

Docente Investigador de la Pontificia Universidad Católica del Ecuador, Facultad de Ingeniería, Ecuador, EPCASTROM@puce.edu.ec

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Published

2019-07-31

How to Cite

Osorio López, J. C., Merizalde Aguirre, J. E., Castro Carrera, F. F., & Castro Merino, E. P. (2019). Logistical model to approximate the S Curve of the planning of sewage projects. Gaceta Técnica, 20(2), 35-50. https://doi.org/10.13140/RG.2.2.22509.33769

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Section

Research articles