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Effects of uncertainty on scheduling of highway construction projects

Gómez, Hernán Darío and Orobio, Armando (2015) Effects of uncertainty on scheduling of highway construction projects. DYNA, 82 (193). pp. 155-164. ISSN 2346-2183

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Resumen

Time and cost overruns in highway construction are usual in Colombia. Contractors regularly fail in cost estimation and construction scheduling. An analysis of important factors on time and cost overruns in highway construction in southwest Colombia is presented in this paper. Forty highway construction projects were reviewed. Data from construction documents were collected to prepare a data base for probabilistic analysis. Data collected include scheduled construction time and cost, actual construction time and cost, and unexpected events which could have affected the construction process. Data were used in a probabilistic cost and schedule risk analysis to identify critical factors in construction time and cost overruns in the region. It was found that the activities that most affect the time and cost overruns are the construction of the granular base and the asphalt layer. The most common causes of construction overruns were found to be poor cost and duration estimates, rain, and materials supply problems.

Tipo de documento:Artículo - Article
Palabras clave:Highway Infrastructure, construction scheduling, time overrun, cost overrun
Temática:6 Tecnología (ciencias aplicadas) / Technology > 62 Ingeniería y operaciones afines / Engineering
Unidad administrativa:Revistas electrónicas UN > Dyna
Código ID:58989
Enviado por : Dirección Nacional de Bibliotecas STECNICO
Enviado el día :31 Oct 2017 17:20
Ultima modificación:27 Noviembre 2017 22:05
Ultima modificación:27 Noviembre 2017 22:05
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