Examination of Job-site Layout Approaches and their Impact on Construction Job-site Productivity

Small, Edgar P.; Baqer, Marwa

doi:10.1016/j.proeng.2016.11.634

Cited by 10 publications

(9 citation statements)

References 2 publications

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“…Another factor that indirectly affects process time durations is site layout. Site layout refers to locations of temporary offices, worker rest areas, crane locations, storage and workshop areas, access points and access roads, and other critical features (Small and Baqer, 2016). Poor planning of site layouts eases the opportunities for variability to emerge.…”

Section: Discussionmentioning

confidence: 99%

Accounting for Variability: Identifying Critical Activities as a Supplement to the Critical Path

Salhab

Møller

Lindhard

et al. 2022

J. Constr. Eng. Manage.

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Successful realization of construction activities requires simultaneous integration of various resource input flows, giving rise to considerable sources of flow variability. Such variability might manifest as schedule variations which jeopardize the project performance, especially when using deterministic scheduling. Current scheduling techniques fail to efficiently tackle variability and rely on deterministic approaches. Therefore, this study fills the gap by developing a Discrete Event Simulation model, where activity durations are modeled using beta distributions and Program Evaluation and Review Technique assumptions. By applying the Spearman correlation coefficient, activities with higher influence on the schedule are identified, highlighting where to reduce variability. An application example was conducted involving a Critical Path Method (CPM) network containing eleven activities. Two types of waste emerging due to variability are identified as waiting time and variation gaps. Out of the eleven activities in the example network, two sets of critical activities are identified. Results reveal that an 80% reduction in variability in these critical activities leads to a 51.9% increase in likelihood of completing the project on schedule, 30% decrease in waiting time, and 28.6% decrease in variation gap. An important implication of this research is that near critical paths could become critical based on the amount of variability contained in the activities lying on each path. Acquiring such information early on during planning provides proactive, eye-opening insights into potential problematic scheduling areas. The study's contribution includes investigating the variability effect on two types of waste in production and providing project planners with a stochastic approach to manage the hidden waste in production systems; This is a pre-published version

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Section: Discussionmentioning

confidence: 99%

Accounting for Variability: Identifying Critical Activities as a Supplement to the Critical Path

Salhab

Møller

Lindhard

et al. 2022

J. Constr. Eng. Manage.

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show abstract

“…Based on the study about PC at individual and organizational levels, it is noted that the association between PC and performance depends on the background on which the task is carried out, for instance, success in healthcare is due to informed PC planning and oversight. If anyone is to utilize PC for performance improvement, proper job layout and communication are necessary (Small and Baqer, 2016). Identifying the PC as a key dimension of measuring organizational outcomes helps practitioners to be more conversant with performance appraisal and evaluation instruments (Kim and Holzer, 2014).…”

Section: Discussionmentioning

confidence: 99%

A review of performance-geared contracting

Odongo

Wang

Bishoge

et al. 2019

TQM

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Purpose The purpose of this paper is to provide a systematic review of numerous writings addressing quality performance-geared contracting (PC) and self-stated performance. Design/methodology/approach The study systematically reviewed 134 refereed papers across various fields published between from 2000 to 2018. A categorization framework of PC is suggested addressing fundamental dimensions of its plan and management. Findings The relative analysis of pertinent articles advancing interdisciplinary perspective encourages learning and provides knowledge about quality management in organizations especially at individual and organizational levels. Research limitations/implications The outcomes indicate that much of the present-day wide-ranging performance contracting studies do not have robust theoretical grounds. Studies are also inclined to certain theories for instance agency theory and play down other theories with the likelihood of contributing to quality management. Practical implications Performance contracting between citizens and public entities is important in that the written contract limits what the public entities, for instance, the government can and cannot do and informs on the rights and privileges of citizens, thus contracts to form the core of a free society. Originality/value This review demonstrates that performance contracting is useful in performance improvement if proper job design and contract management exist.

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“…Tay et al (2017) informed of the safety and quality trends and applications of three-dimensional printing towards construction precision and sustainable buildings. These technologies are applicable in many areas of improvement, including, post-disaster reconstruction (Moles et al, 2014), worksite and building use optimisation (Small and Baqer, 2016;Chardon et al, 2016), decrease environmental issues, including carbon foot-print (Foroozanfar et al, 2017;Wong et al, 2014) and project constructability (Kifokeris and Xenidis, 2017). These emerging technologies compel the industry practitioners to embark on a personal development path towards improving competence.…”

Section: Competencementioning

confidence: 99%

What do post-disaster reconstruction project success indicators look like? End-user’s perspectives

Charles

Chang‐Richards

Yiu

2021

IJDRBE

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Purpose This paper aims to investigate the emergence of new success measures for buildings and infrastructure post-disaster reconstruction projects, beyond the traditional ”iron triangle”, which have gained prominence with the increased involvement of clients and end-users in these projects. Consequently, the industry is obliged to reconsider the critical factors regarding what constitutes a successful outcome from the perspectives of these stakeholders. Design/methodology/approach Data was gathered from end-users in four Caribbean islands using a questionnaire survey on eight empirical success indicators obtained from an extensive systematic literature review. To elicit a ranking and correlations amongst the end-user’ perspectives on the indicators, factor analysis and structural equation modelling techniques (SEM) were conducted. Findings The factor analysis found “safety” to be the most important empirical success measure, while “change” ranked the least important. Correlation analysis using SEM identified two new composite indicators, namely, “competence” with delivering timely and quality environmentally friendly and sustainable projects and “adaptability” in ensuring project objectives reflect beneficiaries’ expectations amidst internal and external influences, to be critical of end-users’ measurement indicators that describe their assessment mechanism. Measurement and structural models validated “safety” and “satisfaction” to be the highest loading variables in the two composites, respectively. Research limitations/implications The research focussed on findings in English language articles; therefore, any claim to a complete list of indicators from the literature can be amiss. Practical implications Results confirm the traditional “iron triangle” of time, cost and quality to be limited in assessing reconstruction project outcomes and the views and expectations of the potential beneficiaries need to be factored in the planning, design, execution and post-handover stages in all reconstruction projects. Originality/value This paper was very specific in its attempt to investigate new success indicators for reconstruction project outcomes, aiming to assist with developing comprehensive project objectives that resonate with all stakeholder groups.

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Examination of Job-site Layout Approaches and their Impact on Construction Job-site Productivity

Cited by 10 publications

References 2 publications

Accounting for Variability: Identifying Critical Activities as a Supplement to the Critical Path

Accounting for Variability: Identifying Critical Activities as a Supplement to the Critical Path

A review of performance-geared contracting

What do post-disaster reconstruction project success indicators look like? End-user’s perspectives

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