Quantification of Productivity Changes Due to Work Schedule Changes in Construction Projects: A Case Study

In a copper-molybdenum open pit mine in Chile, a collective labor dispute in April 2012 halted work on the site; the main problem was the negotiation of unified work schedules for contractors, subcontractors and their own staff. To avoid conflicts that could delay this project, the parties agreed to...

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Autores principales:	Arriagada,Ricardo E, Alarcón C,Luis F
Lenguaje:	English
Publicado:	Escuela de Construcción Civil, Pontificia Universidad Católica de Chile 2014
Materias:	Probabilistic model working day extended productivity loss mining project case study
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-915X2014000100001
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spelling	oai:scielo:S0718-915X20140001000012014-11-06Quantification of Productivity Changes Due to Work Schedule Changes in Construction Projects: A Case StudyArriagada,Ricardo EAlarcón C,Luis F Probabilistic model working day extended productivity loss mining project case study In a copper-molybdenum open pit mine in Chile, a collective labor dispute in April 2012 halted work on the site; the main problem was the negotiation of unified work schedules for contractors, subcontractors and their own staff. To avoid conflicts that could delay this project, the parties agreed to submit to arbitration by an external agency, to determine and quantify the existence of lost productivity caused by the change of work schedules. The external agency considered three basic elements: a) the temporal dimension to allow the comparison of two work schedules, b) the acceptable range of productivity losses associated with these schedules; and c) an unbiased mechanism to allocate a productivity loss within the range associated with each schedule. This paper presents the analysis of productivity loss when work schedules are extended, the method utilized, and the results obtained. This probabilistic model randomly assigns discrete values of productivity loss for each day of the work schedules, and uses inefficiency ranges from industry research; this allows a non-biased, easy to implement, comparison of work schedules.info:eu-repo/semantics/openAccessEscuela de Construcción Civil, Pontificia Universidad Católica de ChileRevista de la construcción v.13 n.1 20142014-04-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-915X2014000100001en10.4067/S0718-915X2014000100001
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Probabilistic model working day extended productivity loss mining project case study
spellingShingle	Probabilistic model working day extended productivity loss mining project case study Arriagada,Ricardo E Alarcón C,Luis F Quantification of Productivity Changes Due to Work Schedule Changes in Construction Projects: A Case Study
description	In a copper-molybdenum open pit mine in Chile, a collective labor dispute in April 2012 halted work on the site; the main problem was the negotiation of unified work schedules for contractors, subcontractors and their own staff. To avoid conflicts that could delay this project, the parties agreed to submit to arbitration by an external agency, to determine and quantify the existence of lost productivity caused by the change of work schedules. The external agency considered three basic elements: a) the temporal dimension to allow the comparison of two work schedules, b) the acceptable range of productivity losses associated with these schedules; and c) an unbiased mechanism to allocate a productivity loss within the range associated with each schedule. This paper presents the analysis of productivity loss when work schedules are extended, the method utilized, and the results obtained. This probabilistic model randomly assigns discrete values of productivity loss for each day of the work schedules, and uses inefficiency ranges from industry research; this allows a non-biased, easy to implement, comparison of work schedules.
author	Arriagada,Ricardo E Alarcón C,Luis F
author_facet	Arriagada,Ricardo E Alarcón C,Luis F
author_sort	Arriagada,Ricardo E
title	Quantification of Productivity Changes Due to Work Schedule Changes in Construction Projects: A Case Study
title_short	Quantification of Productivity Changes Due to Work Schedule Changes in Construction Projects: A Case Study
title_full	Quantification of Productivity Changes Due to Work Schedule Changes in Construction Projects: A Case Study
title_fullStr	Quantification of Productivity Changes Due to Work Schedule Changes in Construction Projects: A Case Study
title_full_unstemmed	Quantification of Productivity Changes Due to Work Schedule Changes in Construction Projects: A Case Study
title_sort	quantification of productivity changes due to work schedule changes in construction projects: a case study
publisher	Escuela de Construcción Civil, Pontificia Universidad Católica de Chile
publishDate	2014
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-915X2014000100001
work_keys_str_mv	AT arriagadaricardoe quantificationofproductivitychangesduetoworkschedulechangesinconstructionprojectsacasestudy AT alarconcluisf quantificationofproductivitychangesduetoworkschedulechangesinconstructionprojectsacasestudy
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Quantification of Productivity Changes Due to Work Schedule Changes in Construction Projects: A Case Study

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