Quantifying the Delay from Lost Productivity

Mikhail, Carol A.; Serag, Engy

doi:10.1061/(asce)la.1943-4170.0000322

Cited by 8 publications

(3 citation statements)

References 10 publications

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“…One of the most imperative project deliverables to be considered when making a construction contract is project duration; however, it is difficult to accomplish a construction project in which many construction activities are beyond the control of the contractor [50], [51]. It was also detected in this study that most of the projects end up with disputes due to delays in projects.…”

Section: Discussionmentioning

confidence: 70%

Identification of Dispute Sources in the Construction Industry via Court Files

Cevikbas

2023

Turkish Journal of Civil Engineering

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Contracting parties generally tend to resolve their disputes through the litigation process. The lengthy litigation process reduces the belief among the parties that the disputes are resolved peacefully, and this destabilizes the sustainable structure of the construction industry where disputes are very common. Determining the most common sources of disputes in construction lawsuits is very important in terms of taking necessary precautions beforehand. Additionally, increasing the competency levels of construction and judicial actors regarding construction processes is extremely important in terms of making the judicial process more efficient and faster. Therefore, this study aims to reveal the most frequent dispute sources in the construction industry, the competency levels of judicial actors including expert witnesses and the average duration of the construction-related litigation process for the superior courts. Hence, 346 construction-related lawsuits conducted between 2018 and 2021 were examined via content analysis to classify the common themes. Lawsuits were investigated via the official websites of Courts of Cassation and National Judicial Network Information System (UYAP). Next, the frequency analysis was conducted to detect the significance of each theme via SPSS software. It is highly believed that this study will enable the decision-makers to take necessary precautions before the dispute occurs as well as improve the dispute resolution process in the construction industry. Projects related to superstructure works constituted the majority of the disputes ending up with the judicial process. Additionally, the majority of the disputes detected from lawsuits resulted from “Debit and Credit” related issues. Moreover, the litigation process was also detected as a very lengthy process. Furthermore, it is detected that majority of the lawsuits were rejected by the Courts of Cassation due to inadequacies of the competency levels of the judicial actors.

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Section: Discussionmentioning

confidence: 70%

Identification of Dispute Sources in the Construction Industry via Court Files

Cevikbas

2023

Turkish Journal of Civil Engineering

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“…Therefore, a difficult hurdle for disruption claims is often proving causation – that the alleged act of one party resulted in the disruption or loss of productivity in the other. The loss of labor productivity reflects that more resources are required to perform a certain task, which in some cases might lead to taking a longer duration to perform this task (Mikhail and Serag, 2019).…”

Section: Methods Of Analyzing Lost Productivitymentioning

confidence: 99%

“…Recently, Mikhail and Serag (2019) maintained that to accurately calculate the delay duration due to loss of labor productivity, a logical method for analyzing schedule delay was required; the authors proposed an approach based on the measured mile study, one of the most recommended methods of loss of productivity calculations, to quantify the delay due to lost productivity. Zhao and Dungan (2019) discussed how to develop a project-specific productivity curve regarding the effect of a key project variable on productivity, and then demonstrated the application of project-specific productivity curves to loss of productivity analysis through a case study.…”

Section: Literature Review Of Lost Productivitymentioning

confidence: 99%

Quantifying costs of the productivity loss due to schedule changes in construction projects

Lee

2021

ECAM

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PurposeThe purpose of the paper is to develop a method to integrate the schedule-based analysis with a productivity-based analysis to prove and support the result of the damages calculation.Design/methodology/approachIn this paper, a “cost and schedule impact integration” (CSI2) model is proposed to objectively show and estimate lost productivity due to changes in construction projects.FindingsA schedule-based analysis to include separate tracking of change order costs can be used to predict productivity due to the delay and disruption; changes in construction projects almost always result in delay and disruption. However, the schedule-based analysis needs to be integrated with a productivity-based analysis to prove and support the result of the damages calculation.Practical implicationsThe results of this study expand upon construction practices for proving and quantifying lost productivity due to changes in construction projects.Originality/valueThe contribution of the paper is summarized as the introduction of a “schedule impact analysis” into a “cost impact analysis” technique to assess the damages, as well as to demonstrate the labor productivity impact due to delay and disruption in construction projects.

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