Proc. 27th Annual Conference of the International Group for Lean Construction (IGLC)最新文献

{"title":"Process Versus Operations Workflow – Making the Case for Continuous Monitoring of Construction Operations","authors":"D. Grau, Amin Abbaszadegan, Rizan Assanair","doi":"10.24928/2019/0197","DOIUrl":"https://doi.org/10.24928/2019/0197","url":null,"abstract":"This article argues that an opportunity to leverage operations flow in construction exists. Operations flow represents the flow of work within a unit of production such as a worker or workstation. To date, construction has mostly neglected operations flow and solely focused on process flow. Process flow represents how the flow of work on a product moves through workstations or tasks. For example, the Last Planner System (LPS) exemplifies a successful approach to plan for tasks with resolved constraints, so that production units (e.g. crews) can flow smoothly through the built product or project. In order to spark a discussion in the construction community, this article provides a theoretical review of process and operations flow concepts and practices. In addition, interviews with subject matter experts in the automobile industry are leveraged in order to unveil how work and information flows are monitored in assembly lines. Based on the previous insights, a model for the continuous monitoring of operations in construction with the support of advanced technologies is discussed. The model is partially implemented in a healthcare project.","PeriodicalId":278113,"journal":{"name":"Proc. 27th Annual Conference of the International Group for Lean Construction (IGLC)","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132049501","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Lean Construction Practice: Culture, Standardization and Informatization — A Case From China","authors":"Lixuan Jiang, Hua Zhong, Jianghong Chen, Zhenmin Su, Jinhua Zhang, Xiao Wang","doi":"10.24928/2019/0274","DOIUrl":"https://doi.org/10.24928/2019/0274","url":null,"abstract":"Many construction enterprises in the world are practicing lean construction and benefiting from it. China, with a big construction industry, has promoted lean concepts in recent years, but there are still obstacles in practice. The aim of this study therefore is to introduce a Chinese construction company, demonstrating some the most successful lean construction outcomes in China. A case study approach is used with whole process of the project's implementation being tracked. Data are collected from interviews, meetings and statistics. The study shows that three important aspects collaboration lead to the success of lean construction implementation. Relationships among culture, standardization and informatization are explored. The study recommends a lean culture frame of employee value and customer value integration and incentives providing. Standardization is employed as Work structuring tool to provide operability and offer the foundation to informatization. Last Planner®system (LPS) practice is aided by an hour level precision control to improve efficiency. This research presents a case for improving lean construction effectiveness in Chinese context.","PeriodicalId":278113,"journal":{"name":"Proc. 27th Annual Conference of the International Group for Lean Construction (IGLC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130271830","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Lean Construction Techniques and Individual Performance","authors":"Shuquan Li, Meng Fan, Xiuyu Wu","doi":"10.24928/2019/0136","DOIUrl":"https://doi.org/10.24928/2019/0136","url":null,"abstract":"The adoption of lean construction techniques in construction industry can eliminate waste and increase profit, and this paper is to test the maturity of implementation of lean construction tools in construction project, as well as the impact of lean construction tools on individual performance. In this research, five widely used lean construction techniques were selected (Last Planner system (LPS), visualization tool, six step plan(6S), Just-in-time (JIT) and Total quality management (TQM)), and individual performance was divided into two dimensions: task performance and contextual performance. The data collection methods included interviews and questionnaires, and the data analyzed via SPSS software. The results showed that the highest maturity implementation of lean construction tools in the investigated projects was TQM, had positive impact on individual performance, while LPS was the lowest maturity tool and had least impact on individual performance; for task performance, 6S was the most effective technique, and for contextual performance, the most effective tool was visualization tool. This study provides theoretical support and guidance for construction enterprises to select lean construction techniques to improve individual performance.","PeriodicalId":278113,"journal":{"name":"Proc. 27th Annual Conference of the International Group for Lean Construction (IGLC)","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129265008","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Implementing Lean Visual Tools on the Closeout Phase of a Globalscale Industrial Project","authors":"M. Farzad, Vhybirt A. Cameron","doi":"10.24928/2019/0184","DOIUrl":"https://doi.org/10.24928/2019/0184","url":null,"abstract":"The construction industry has long been struggling with issues such as safety, efficiency, and quality. Many tools and methods have been introduced to alleviate the current problems of this industry. Lean practices have been promising in recent years in the matter of improving project safety, communications and efficiency. However, these tools have mainly been implemented at the peak of a construction project’s activities, where resources are at their highest levels, but seemed to be neglected at the ending phase of closeout. To study the effectiveness of lean practices in this phase, this paper has evaluated the utilization of visual management methods as a case study on a large-scale multi-phase, multi-cultural industrial project in Mexico. Hence, a visual matrix was developed after thorough analysis and continues improvement. Moreover, procedures were developed to use this tool to communicate, track and coordinate the closeout process. After the completion of the project, five milestone dates were extracted, and the information was compared against previous phase data. The result of the study shows that using this tool can decrease the duration of the closeout process, improve the communication between different stakeholders and aid to overcome challenges derived from differences in culture, methods, and expectations.","PeriodicalId":278113,"journal":{"name":"Proc. 27th Annual Conference of the International Group for Lean Construction (IGLC)","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125411072","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Optimizing Material-Related Costs Using Dynamic Site Layout and Supply Chain Planning","authors":"S. A. Dargham, Sena Assaf, Karim Faour, F. Hamzeh","doi":"10.24928/2019/0135","DOIUrl":"https://doi.org/10.24928/2019/0135","url":null,"abstract":"Understanding a construction site layout is a crucial step before allocating resources to it; space is a critical factor that impacts both labor productivity and ease of material reach when needed. There is little research performed on the cost aspect of material management on site in compliance with the schedule and the type of supply chain strategy. The process of delivering bulk Glass Reinforced Concrete (GRC) units based on a push-supply system to a congested site with limited storage space all the way to their storage and installation on site is studied in this paper. The resources' cost, deterioration cost, transportation-delay cost, and the corresponding space turnover rate associated with the process are also addressed. The aim of this paper is to incorporate lean thinking to develop, model, and simulate an optimized and dynamic site layout that allows for a smooth flow of materials to the site thus minimizing their accumulated logistics and handling costs using the simulation software EZStrobe. Results showed 16% reduction in the total cost and 15% in the total simulation time from the base model of the process under study by adopting a pull-based supply chain of GRC units and combining certain activities of the process.","PeriodicalId":278113,"journal":{"name":"Proc. 27th Annual Conference of the International Group for Lean Construction (IGLC)","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126714440","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Risk Management in Procurement of Blue-Green Roofs – A Project Owner Perspective","authors":"E. Andenæs, B. Time, Olav Torp, T. Kvande, Jardar Lohne","doi":"10.24928/2019/0263","DOIUrl":"https://doi.org/10.24928/2019/0263","url":null,"abstract":"Blue-green roofs are vegetated roofs used for stormwater management purposes. With the roof serving several different purposes at the same time, the risk that any of its functions could be compromised needs to be addressed. Risks related to roof defects may present a threat to the long-term operation of a building, and could lead to waste by making defective products. This article presents an investigation to explore how the Norwegian building sector handles and manages this risk. Tender documents for green roof construction projects in the Norway are examined. Technical documents are studied to chart how the projects manage risks related to the integrity of the roofs in the tender phase. Findings suggest that risk in relation to building physics is not systematically analysed and managed in design and procurement phase of the project. Contractors are given significant control of design elements in certain common contract strategies. Risk is effectively not being managed in the early phase, with much of the risk management given to the contractors. The project owner will yield little control over decisions whose outcomes will only manifest long after the warranty period expires.","PeriodicalId":278113,"journal":{"name":"Proc. 27th Annual Conference of the International Group for Lean Construction (IGLC)","volume":"64 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122286324","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"From Concept Development to Implementation: Choosing by Advantages Across an Organization","authors":"Annett Schöttle, Luisa Maria Gigler, Brent Mingle","doi":"10.24928/2019/0205","DOIUrl":"https://doi.org/10.24928/2019/0205","url":null,"abstract":"Decision-making is one of the most important and underestimated activities of every organization. Decisions define the commitment of our most limited resources and are the determining factor between success and failure. How individual decisions are taken directly impacts the decision outcome. Therefore, the method used to decide is of utmost importance. Choosing by Advantages (CBA) is a decision-making method that has been growing in application and acceptance in the last few years within the International Group for Lean Construction (IGLC) community. Existing publications regarding CBA mainly discuss the benefits of the method in theory and in practice, but none of them explain how the method was applied nor if it was also broadly implemented across organizations to the different project levels. This paper closes the gap by giving guidance and insights on the development and rollout of CBA trainings for the construction industry based on the case study of Daimler AG. The authors conclude that the implementation of CBA requires a thoughtful plan that leaves room for adjustments in accordance to the project team’s needs.","PeriodicalId":278113,"journal":{"name":"Proc. 27th Annual Conference of the International Group for Lean Construction (IGLC)","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122328668","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Theory of Quality Management: Its Origins and History","authors":"L. Koskela, A. Tezel, Viranj Patel","doi":"10.24928/2019/0259","DOIUrl":"https://doi.org/10.24928/2019/0259","url":null,"abstract":"Purpose: Determination of the theoretical and philosophical foundations of quality management, as they have evolved and changed over time. Methodology/Approach: Conceptual and historical. Findings: At the origin of the quality movement, Shewhart defined quality through an account of production (later called value generation theory), and suggested the scientific model (later to be named as Plan-Do-Check-Act cycle, PDCA) as the epistemology for improving quality. Somewhat later, Deming recommended ideas falling into process ontology as applicable in the quality context. These prescriptions were not presented in terms of theory, epistemology or ontology but through examples. Perhaps partly for that reason, in subsequent developments these prescriptions were often forgotten or rejected. Especially, the ISO standard for quality management rediscovered the original PDCA epistemology only in 2015. Thus, the degeneration of the original theoretical and philosophical foundation seems to be one of the longstanding problems in the area of quality. On the other hand, it has turned out that the value generation theory of production is a partial theory. As the success of the lean movement indicates, production should also be seen through the flow theory. The achievement of quality can, for its part, also be explained through this flow theory of production. However, there has been very little theoretical work both regarding production and quality, and thus the integration of theories on production has not been achieved. Lacking theoretical evolution is another long-standing problem that arguably has hindered the progress of quality. Research implication: The findings call for a sustained effort to explicate and develop the theoretical and philosophical foundation of quality management. Originality/Value of paper: It is widely perceived that quality as a managerial focus has lost its attraction in the last two decades. In this presentation, the argument that weaknesses of the theoretical and philosophical foundation of quality have contributed to this lack of attraction is forwarded. 1 Professor, Department of Architecture and 3D Design, University of Huddersfield, Queensgate, Huddersfield, HD1 3DH, UK, +44 1484 472892, l.koskela@hud.ac.uk 2 Senior Lecturer, Department of Architecture and 3D Design, University of Huddersfield, Queensgate, Huddersfield, HD1 3DH, UK, +44 1484 472939, a.tezel@hud.ac.uk 3 Research Assistant, Department of Architecture and 3D Design, University of Huddersfield, Queensgate, Huddersfield, HD1 3DH, UK, +44 7459359697, viranjkumar@gmail.com Koskela, L., Tezel, A., and Patel, V.","PeriodicalId":278113,"journal":{"name":"Proc. 27th Annual Conference of the International Group for Lean Construction (IGLC)","volume":"51 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122595552","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A Survey of Simulation Modelling Techniques in Lean Construction Research","authors":"W. Shou, Peng Wu, Jun Wang","doi":"10.24928/2019/0142","DOIUrl":"https://doi.org/10.24928/2019/0142","url":null,"abstract":"Over the past two decades, discrete event simulation (DES) has been increasingly employed in lean construction research as a response to the requirement of evaluating the impact of the implementation of various lean initiatives. A systematic review of DES application in lean construction research is necessary to examine how DES has been implemented in lean research. This review was conducted by reviewing 49 DES papers published in peer-reviewed journals and IGLC conference between 1997 and 2018, which aims to identify the state of the art development in this specific research area and propose future research directions. The papers are analysed in terms of publications, DES techniques, value of DES, and topic coverage. 13 types of DES techniques, 6 value of DES in lean construction research, and 8 research topics are identified and summarised. The findings of this study are expected to provide useful suggestions for the future research opportunities of DES in lean construction research.","PeriodicalId":278113,"journal":{"name":"Proc. 27th Annual Conference of the International Group for Lean Construction (IGLC)","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131173813","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"BIM-Based Construction Progress Measurement of Non-Repetitive HVAC Installation Works","authors":"P. Dallasega, A. Revolti, Camilla Follini, Christoph Paul Schimanski, D. Matt","doi":"10.24928/2019/0152","DOIUrl":"https://doi.org/10.24928/2019/0152","url":null,"abstract":"Construction projects are often delivered over time and over budget. Deviations are often identified only during the finishing stages when improvement actions to recover from delays become limited. Building Information Modeling (BIM) will transform the construction industry to come in line with more digitally developed industries like manufacturing. However, up to now, BIM has been mainly used to support the information flow of the construction design process and limited effort has been invested to investigate how it could support the management of the construction execution process. The paper shows how BIM can be used to schedule and monitor non-repetitive construction tasks. The proposed approach shows how important information needed for scheduling (like the number of pieces to be installed in a certain location) could be extracted from the BIM model. Moreover, it shows how BIM could support a quantitative monitoring of the reached progress and how this information can be displayed in an intuitive way to the user. The approach was developed during the project COCkPiT (Collaborative Construction Process Management) and especially by collaborating with a Heating Ventilation and Air Conditioning (HVAC) company using as a case study a medium sized hospital construction project located in Northern Italy.","PeriodicalId":278113,"journal":{"name":"Proc. 27th Annual Conference of the International Group for Lean Construction (IGLC)","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128073689","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}