Activity Analysis for Direct-Work Rate Improvement in Construction

Gouett, Michael C.; Haas, Carl T.; Goodrum, Paul M.; Caldas, Carlos H.

doi:10.1061/(asce)co.1943-7862.0000375

Cited by 97 publications

(77 citation statements)

References 10 publications

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“…A workface assessment method called activity analysis was developed to continuously improve productivity performance by efficiently measuring the time expenditure of workers onsite and identifying productivity inhibitors that management must reduce or eliminate to provide workers with more time for direct-work activities (Gouett et al, 2011). The research concluded that activity analysis, as a continuous performance improvement process, is feasible and when continually applied to a construction site, can significantly improve direct-work rates through the life of a project.…”

Section: Safety Activity Analysismentioning

confidence: 99%

“…In most industries an error of ±5% at a confidence level of 95% is generally acceptable (Gouett et al, 2011). Generally, activity analysis has more than two categories of which this study is not an exception and therefore, it is multinomial.…”

Section: Stage 1: Goal Definition and Action Planningmentioning

confidence: 99%

“…Choudhry and Fang (2008) pointed out that on a construction project, thorough evaluation and step-by-step job safety analysis followed by the development of written safe operating procedures can influence workers to improve their safety behaviors when performing work tasks. In conjunction with the Construction Industry Institute (CII) Research Team, the benefits derived from activity analysis were used to improve the direct work rate in construction (Gouett et al, 2011). The observation of unsafe acts and conditions were also implemented as a means for continuous improvement of safety management in a petrochemical plant (Chen & Yang, 2004).…”

Section: Safety Activity Analysismentioning

confidence: 99%

“…Therefore, the probability of reporting one result wrong in the entire study is significantly greater than 1 in 20 (Gouett et al, 2011). The sample size for a multinomial distribution is determined using Equation 3.1 (Thompson, 1987).…”

Section: Stage 1: Goal Definition and Action Planningmentioning

confidence: 99%

“…This research uses activity observation or activity sampling (Glendon & Litherland, 2001;Jenkins & Orth, 2003;Cooper & Phillips, 2004;Gouett et al, 2011;Zhang & Fang, 2013) to continuously collect data of safe behaviors and conditions, as well as unsafe behaviors and conditions on construction sites for analysis and decision-making. The activity observation (or activity analysis) results can be used to set and implement improvement targets, and then provide continuous feedback so that construction workers can adjust their performance accordingly.…”

Section: Motivation and Research Objectivesmentioning

confidence: 99%

See 4 more Smart Citations

Safety Activity Analysis Framework to Evaluate Safety Performance in Construction

Awolusi

2017

J. Constr. Eng. Manage.

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The construction work environment remains one of the most hazardous worldwide. As a result of dangerous working environments, construction workers often face safety and health risks throughout the construction process. However, it is worth noting that an emphasis on construction safety has increased mainly in the aspect of safety performance, and efforts are required to not only monitor but also seek to improve safety performance. The main objective of this research is to assess safety performance on construction sites using safety activity analysis technique. A safety activity analysis framework as well as a safety activity analysis tool are developed to facilitate the collection and analysis of the safety activity data for continuous evaluation of safety performance.Additionally, a case study is carried out to implement the framework and tool on an active construction project. Activity observation is used to continuously collect data of safe behaviors and conditions, along with unsafe behaviors and conditions on construction sites for analysis and decision making. It is expected that the observation results can be used to set improvement targets and provide continuous feedback so that construction workers can adjust their performance accordingly. The findings of the case study show that the safety index of the construction site ranged from 37.0% to 62.8% with an average of 53.8%. Results obtained also indicate that the stage of a construction process can affect the safety performance of a project. It was recommended that well-informed decisions and far-reaching efforts have to be made to ensure the safety index is brought as close as possible to 100% by reducing the unsafe behaviors and conditions on the construction site.iii

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Section: Safety Activity Analysismentioning

confidence: 99%

Section: Stage 1: Goal Definition and Action Planningmentioning

confidence: 99%