scholarly journals Lean Construction Technique

Author(s):  
Raj Suryawanshi

Lean construction is as an effective management tool to enhance the productivity in construction field. Large research is being done in recent past and is an on-going process to adopt lean principles from manufacturing industry to the construction industry. In order to improve the efficiency, reduction of waste, the lean construction has been introduced as new management tool. There are many challenges in implementing the lean concept in construction industry in India. Due to lack of attention and illiteracy towards the lean management principle, stake holders associated to this like builder, contractor, and engineering and project management firms etc. are still in process of adopting this principle for construction project. In this project report efforts are made to find out main barriers towards the implementation of lean techniques in Indian construction industry with the help of questionnaire survey and actual site implementations are made to develop a process map for on-going projects. Results of the survey showed that some of the lean techniques should be given more focus to enhance the process. The framework results show that the NVA (Non Value Added) and ENVA (Essential Non Value Added) activities have the highest impact on the project duration. Therefore with implementation of the proposed lean techniques, the NVA and ENVA activities have found to be improved and their durations can be reduced considerably.

Author(s):  
Harshil Thakkar ◽  
Vismay A. Shah

Lean construction technique has been arisen from endeavouring and applying Japanese lean manufacturing philosophy to the construction industry. Large research is being done recently and an ongoing process to adopt lean principles to the construction industry to enhance the efficacy, amelioration of waste. The success of the lean technique is evident, but some major reports indicated that major challenges are related to the Mis-conceptualisation of lean thinking, and some case studies have ascertained that the lean technique was either applied partially or erroneously. The purpose of this paper is to elucidate the lean concept, wastes in construction, features of lean project delivery, lean principles and the barriers to implementing the lean technique in the Gujarat construction industry. A compendious review of the literature had been done with the perspective of reaping pertinent data needed for the paper and to make a questionnaire. To check the reliability of data Cronbach’s alpha was used. Followed by a statistical analysis of data by Relative Important Index (RII) and ranks were given. Further analysis discovered that only nine of these barriers were determined significant, where dominant factor was Resistance to change and culture with an RII value of 0.63. The results of this study could be used to help researchers, practitioners and companies in the Gujarat construction industry to fasten their attention on the suggestive issues to the prosperous implementation of the lean concept. Lean construction technique has been arisen from endeavouring and applying Japanese lean manufacturing philosophy to the construction industry. Large research is being done recently and an ongoing process to adopt lean principles to the construction industry to enhance the efficacy, amelioration of waste. The success of the lean technique is evident, but some major reports indicated that major challenges are related to the Mis-conceptualisation of lean thinking, and some case studies have ascertained that the lean technique was either applied partially or erroneously. The purpose of this paper is to elucidate the lean concept, wastes in construction, features of lean project delivery, lean principles and the barriers to implementing the lean technique in the Gujarat construction industry. A compendious review of the literature had been done with the perspective of reaping pertinent data needed for the paper and to make a questionnaire. To check the reliability of data Cronbach’s alpha was used. Followed by a statistical analysis of data by Relative Important Index (RII) and ranks were given. Further analysis discovered that only nine of these barriers were determined significant, where dominant factor was Resistance to change and culture with an RII value of 0.63. The results of this study could be used to help researchers, practitioners and companies in the Gujarat construction industry to fasten their attention on the suggestive issues to the prosperous implementation of the lean concept.


2020 ◽  
Vol 10 (6) ◽  
pp. 160
Author(s):  
Silvia Martínez Sanahuja

Lean Thinking is a methodology based on improving the efficiency of productive processes by removing non-value-added issues. This methodology was firstly applied in the manufacturing industry, but it has also been applied to many service companies, bringing very good results. In the last decade, some works have tried to research the adaptation of Lean principles and practices to teaching, especially in technology and other STEAM subjects. In this sense, the aim of this work is to deepen this new trend by establishing what issues are non-value-added (waste) ones in education and classifying these kinds of waste in order to be able to analyze how to eliminate them. For this purpose, we adapt the classification made in other kinds of processes and extend other authors’ findings regarding this topic.


Author(s):  
Mohamed Saad Bajjou ◽  
Anas Chafi ◽  
Abdelali En-Nadi

The growing context of globalization permanently increases pressure on the construction companies to improve their performances in order to resist to the constraints of competitiveness in the international market. It has become ineluctable to look for introducing a new alternative capable of bringing creative improvement to the traditional production system. This paper will relate mainly to the most relevant management techniques in the construction industry, and more specifically, the lean construction concept. Initially, we will determine the main characteristics of the construction industry compared to the manufacturing industry according to three levels: on-site production, one of a kind projects, and complexity. Subsequently, we will focus our attention on the main sources of waste in the construction industry. Finally, a rigorous comparative study will be carried out to show the contribution of the lean construction tools in the promotion of traditional construction especially at the level of the following factors: Creating value and eliminating waste; Planning and mutual coordination; Site organization. Lean construction as Last Planner System (LPS), Value Stream Mapping (VSM), Just-in-Time philosophy, Visual management (VM) and 5S have shown a great ability to improve the traditional production system through waste reduction, encouraging people involvement, ensuring a pull flow production, and promotion of a continuous improvement philosophy.


2021 ◽  
Author(s):  
Sam Ataei

For many years, productivity improvement through value stream mapping and simulation has been studied in manufacturing industry where the flow of materials is visible and the work can be standardized. In recent years, the service industry has become a new arena for lean operations. Within the service industry, client-based companies have distinct challenges in streamlining their process, as it may not be feasible to standardize the needs of different clients. This thesis focuses on a case from a client-based company in the area of graphic communications and brand point management services. The thesis examines the application of lean principles towards a set of subjective processes and provides directions for improving productivity. Some lean methods utilized in the study include creating process flows, conducting operator interviews to back-up the process flow, collecting data such as processing time and creating a detailed values stream map of the retail packaging process in order to analyze any necessary areas of improvement. Value stream mapping has been used to identify the areas where the non-value-added tasks can be reduced, and simulation models have been used to imitate and predict the company's different scenarios in dealing with bottlenecks, different kinds of wastes, and to assess potential areas for improvements. The analysis of results indicates that it is necessary to have two different streams of the processes; one for a team-based job and another one for a non-team-based job. The proper touch points from each department have been found and value-added and non-value added times have been determined in order to create the current-state. Furthermore, future-states have been created with some recommendations kept in mind to validate the time savings. The results have been verified through a simulation analysis.


2020 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Shakil Ahmed ◽  
Md. Mehrab Hossain ◽  
Iffat Haq

PurposeConstruction management is enriched in many ways by direct and indirect support of lean construction concept. The objectives of this study are to assess the current level of awareness about lean construction practice, to identify the potential benefits and challenges to implement lean construction in the Bangladeshi construction industry and to prioritize them.Design/methodology/approachA comprehensive literature review has been done to design a questionnaire for the survey. The final questionnaire has been designed with 27 lean tools, 41 challenges, and seven benefits of implementing lean principles in the construction industry. A total of 164 valid responses have been collected from Bangladeshi construction practitioners involved in different types of construction organizations. The result has been analyzed by Relative Important Index (RII).FindingsThe findings revealed 41 challenges to implement lean construction with seven benefits in the Bangladeshi construction industry. The result shows that an appreciable number of respondent familiar with the techniques of lean construction but they don't practice. The findings have also pointed out that the lean construction approach adds a positive impact especially on quality, safety, cost, productivity, and environmental level. The top-ranked challenges to implementing lean construction are: lack of awareness and skill, poor management, traditional culture and attitude of employees, inadequate resources and equipment and nonuse of modern techniques and technologies.Originality/valueThis study reveals real scenario of lean construction in Bangladesh. It contributes to the body of knowledge, as it uncovers for the first time the awareness level, benefits and challenges to implement lean construction with reference to the social, economic and cultural context of Bangladesh. Exploring the findings, the study could help the stakeholders, construction firms, academician, researchers and government to focus their effort and resources on the significantly appropriate issues. Again, the study may be beneficial to developing countries especially in South Asia which share the same socio-economic status with Bangladesh.


Author(s):  
S. Nallusamy ◽  
M.A. Adil Ahamed

Value stream mapping has the reputation of uncovering waste in manufacturing, production and business process. This helps in identifying and removing or streaming value added steps and eliminating non value added steps. In this study the process was analyzed to find an opportunity to drastically reduce the number of actions and to simplify the same. By reducing waste the proportion of value adding time increases in the whole process and the process throughput speed could also be increased. This makes the redesigned process more effective and more efficient. The reengineered process was flow charted in its future state with process steps and information flows re-engineering, simplified and economized. The current layout was analysed to identify and eliminate the non value added activities through lean tools like 5S, VSM and line balancing in a manufacturing industry. From the observed results, it was concluded that the non value added time could be reduced by about 13% while the process cycle efficiency could be increased by about 10%. Virtual simulation was conducted to verify and validate the existing situation as well as to propose the results and the effectiveness of lean principles in a systematic manner with the help of ARENA.


2016 ◽  
Vol 4 (1) ◽  
pp. 60-78 ◽  
Author(s):  
Begum Sertyesilisik

AbstractThe world’s habitat is being deteriorated despite of the precautions taken. Construction industry is among the industries which highly effect the environment adversely not only through its outputs but also through the construction process and its inputs. The main focus in dealing with the reduction of its footprint has been on sustainable building certificates which mainly analyse the output of the construction activies. There is need to analyse the construction supply chain as a whole and to embed sustainability dynamics in construction supply chain management. Lean construction project management contributes to the reduction of the environmental footprint of the construction industry, enabling reduction in waste, and increasing value added activities. For this reason, based on an in depth literature review, this paper analyses and establishes the principles of the integration of the sustainability dynamics into lean construction supply chain management.


10.29007/g7dr ◽  
2020 ◽  
Author(s):  
Pardis Pishdad-Bozorgi ◽  
Sooraj Kumar

Speed-driven projects require extensive planning and coordination for their successful execution within the specified time and cost. With an increasing demand for flash track execution, more efficient ways for project implementation is needed. Lean construction is having a profound impact on the construction industry, which is perceived to be suffering from cost and schedule overruns. This review paper investigates the use of various lean tools and principles in flash track projects and if there is any synergy between lean and flash track projects to improve productivity and schedule performance. Through rationalizations and with the help of case studies and theoretical evidence found in literature, eleven lean tools and eight lean principles have been analyzed for their synergy with flash track construction. The results indicate that all except one lean tool (Just in Time) and one lean principle (reduce inventory) facilitate successful implementation of flash track project.


Author(s):  
Nguyen Manh Tuan

The concepts of Building Information Modeling (BIM) and Lean construction are increasingly popular and used for the purpose of improving the efficiency of construction projects. The Lean construction approach helps optimize the system, thereby minimizing the waste and increase the maximum amount of value for clients. This is in line with the effectiveness of BIM for the purpose of analyzing, evaluating, and managing projects based on the virtual information model before, during and after construction. The combination of BIM and Lean construction will certainly be the trend of the construction industry in the near future. This paper aims to analyze the integration of Lean construction principles in the BIM coordination process through a specific case study. The project management unit is responsible for managing and evaluating BIM models from consultants and contractors and serves as the project's BIM coordinator. Keywords: building information modeling; BIM coordination process; Lean construction; Lean principles. Received 20 November 2018, Revised 30 December 2018, Accepted 25 January 2019


2019 ◽  
Vol 11 (19) ◽  
pp. 5294 ◽  
Author(s):  
Rodrigo F. Herrera ◽  
M. Amalia Sanz ◽  
Laura Montalbán-Domingo ◽  
Tatiana García-Segura ◽  
Eugenio Pellicer

Lean philosophy introduces a new approach for maximizing value while minimizing waste, facilitating sustainable practices at the same time. Companies have become aware of these improvements and are demanding students well formed in Lean concepts. However, to meet this demand, universities must adapt their curricula to include courses that use alternative teaching methods to connect to real contexts. This paper seeks to analyze the benefits of lecture- and game-based learning for developing students’ understanding of Lean Construction Principles. A case study is carried out in the “Lean Construction” course of the Master of Planning and Management in Civil Engineering of the Universitat Politècnica de València. A combination of a traditional lecture and three simple games is applied. Descriptive statistics, the Mann–Whitney U-test, and the Wilcoxon test are performed to analyze the impact of each activity on the understanding of each Lean Construction Principle. Results highlight the importance of combining the lecture class with multiple games to effectively impart knowledge about Lean principles and their application in the construction industry. In addition, they emphasize the importance of selecting the game according to the Lean principle to be taught.


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