scholarly journals Lean approach in precast concrete component production

2019 ◽  
Vol 9 (3) ◽  
pp. 457-470 ◽  
Author(s):  
Suryani Ahmad ◽  
Robby Soetanto ◽  
Chris Goodier

Purpose This study applied the lean approach to the reinforcement work process in the component production of industrialised building system precast concrete construction (IBSPCC). The purpose of this paper is to identify and eliminate non-value added (NVA) activities to enhance the efficiency of the production process. Design/methodology/approach Data were collected via a case study of six-storey precast concrete building. A mapping of the reinforcement work process was conducted based on observations using time study technique and time-lapsed video, complemented by semi-structured interviews. Findings Through this application, several NVA activities, such as unnecessary inventory, excessive movement and coordination issues, were identified. Production performance could be enhanced by implementing Just-in-Time, Kanban, and layout improvements, which would address NVA activities. Research limitations/implications Due to the complexity of the construction process, only specific process elements were observed. To map the complete process, comprehensive observation must be conducted from beginning to end, which, though worthwhile, would be very time and resource intensive. Originality/value This paper focusses on strategies for improving the efficiency of the IBSPCC production process in Malaysian construction by developing a conceptual framework of the lean approach for the reinforcement work process. Certain aspects in the process such as layout and inventory need to be redesigned and simplified by minimising NVA activities.

2019 ◽  
Vol 27 (4) ◽  
pp. 850-871 ◽  
Author(s):  
Shuqiang Wang ◽  
Jia Tang ◽  
Yiquan Zou ◽  
Qihui Zhou

Purpose The purpose of this paper is to investigate the process optimization of a precast concrete component production line by using value stream mapping. Design/methodology/approach This paper is an empirical focused on of lean production theory and value stream mapping. The data in the case study were collected in real time on-site for each process during the production process of a prefabricated exterior wall. Findings The results of the current value stream map indicate that the main problems of the current production process are related to equipment, technology and organization. The equipment problems include simple demolding and cleaning tools and the lack of professional transfer channels. The technology problems include the lack of a marking mechanism and pipeline exit mechanism. There is a lack of standard operating procedures and incomplete process convergence. A comparison and analysis of the current value stream and the future value flow indicate that optimizations of the process flow, the production line layout, and the standard operating procedures have shortened the delivery cycle, reduced the number of workers, improved the operator’s operating level and balanced the production line. Practical implications The results of this study provide practitioners with a clear understanding of the optimization of the precast concrete component production and represent a method and basis for the process optimization of a factory production line; the approach is suitable for process optimization in other areas. Originality/value This research represents an innovative application of lean production theory and value stream mapping in a complex production line of precast concrete components and thereby fills the gap between the theory and practice of the optimization of a precast concrete component production line.


2019 ◽  
Vol 12 (2) ◽  
pp. 57-70
Author(s):  
Joanna Bohatko-Naismith ◽  
Carole James ◽  
Maya Guest ◽  
Darren Anthony Rivett ◽  
Samantha Ashby

Purpose The purpose of this paper is to provide insight into the injured worker’s perspective of experiences with their workplace return to work coordinator (RTWC), and explore some of the barriers they encountered in the return to work process. Design/methodology/approach Semi-structured interviews were conducted with ten injured workers from New South Wales, Australia. The thematic analysis of transcripts was completed. Findings The findings provide an insight into the experiences of injured workers and their relationship with RTWCs. Five key themes emerged from the data: return to work experiences and the RTWC role, high turnover and lack of consistency in the role, RTWC “ideal”, knowledge and skills, communication skills and the RTWC role and GP visits privacy and conflict of interest with peer RTWCs. Practical implications The role of the workplace RTWC in the return to work process for injured workers is important and these findings are highly relevant to the return to work sector. Consistency within the role at the workplace and careful consideration of the specific traits and characteristics required by an individual to perform the role need to be observed during the selection process by employers when appointing a workplace RTWC to assist injured workers return to work. Originality/value This is the first Australian study to examine the injured workers views and experiences with the workplace RTWC and other factors that shape the return to work process.


2022 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Thianthip Bandoophanit ◽  
Siwaporn Pumprasert

Purpose study aims to investigate the implementation and impact of a just-in-time (JIT) system in a food manufacturing and exporting company in Thailand. Design/methodology/approach At the company, the authors used an anomaly case study. The authors performed content analysis on the data collected through semi-structured interviews and direct observations to determine operational flows through customer order, production and delivery. The authors constructed a framework that helped in mapping current operations and subsequently assessing JIT’s impacts; the authors reported the best practices to the company’s owner. Based on the follow-up after a year, the authors used an abductive approach to refine the JIT theory using data from case organizations and relevant studies. Findings The company encountered errors and delays in international delivery owing to inadequate inputs resulting from uncertain agricultural production, delayed contact with freight forwarders, improper documentation and insufficient staffing. Besides the highly centralized system, the limitations of the JIT philosophy contributed to the issues, thereby increasing mental and physical health problems and turnover rate. Owing to these paradoxical effects, the authors extended the JIT theory. Of the study’s several recommendations, the company observed only the following: contacting the freight forwarder after the purchase order confirmation, not production completion. The authors observed increased customer satisfaction, despite the additional cost of booking containers early. Originality/value This research presents a balanced JIT that can minimize JIT’s impacts and resource shortage, owing to demand-supply uncertainties and sustain competitiveness.


Author(s):  
Liliana Rivera ◽  
David Gligor ◽  
Yossi Sheffi

Purpose – The purpose of this paper is to analyze the benefits of logistics clustering, with the intent to explain their growth and popularity among private agents and policy makers during the last decade. Design/methodology/approach – Because of limited knowledge about the benefits of logistics clustering a main objective of this paper is theory building. The authors employed a grounded theory approach and conducted 135 open and semi structured interviews with logistics executives, government officials, academics, and chambers of commerce representatives. Findings – Study results revealed that, the agglomeration of logistics firms provides several key benefits to companies. Specifically, it was found that logistics clustering facilitates collaboration-related benefits, offering of value added services, career mobility for the logistics workforce within the cluster, and promotes job growth at multiple levels within the cluster. The authors offer a rich description of these benefits and the mechanisms that facilitate these outcomes. Research limitations/implications – This paper uses a qualitative approach. Further research using a quantitative approach to measure the magnitude of the impacts and benefits of logistics clusters would be desirable. Originality/value – This paper identifies the benefits associated with logistics clustering and thus provides justification for public authorities and private agents to invest in this phenomenon.


Tibuana ◽  
2019 ◽  
Vol 2 (02) ◽  
pp. 1-8
Author(s):  
Indah Apriliana Sari

The purpose of this research is to calculate the value of productivity carried out in the production of Bolt Hexagon Nut M10X 60MM that have applied the Just in Time method. Machine productivity calculations are carried out using Manufacturing Cycle Effectiveness (MCE) to reduce non-value-added processes. The results of research conducted from January to December 2017 showed an increase in the MCE value of 35%, and productivity increased by 139.75 kg / hour for one year. The calculation shows that MCE is very effective for use in planning and improving value-added activities.


2017 ◽  
Vol 30 (4) ◽  
pp. 456-486 ◽  
Author(s):  
Haifen Lin ◽  
Mengya Chen ◽  
Jingqin Su

Purpose The purpose of this paper is to address how management innovations are implemented deeply at the most micro level of organizations, namely, organizational routines, or to investigate the process through which organizational routines evolve in implementing management innovations, with existing routines overturned and new routines created and solidified. Design/methodology/approach This paper adopts an interpretive and exploratory case study on the case of Day-Definite (DD) innovation which has successfully brought Arima World Group Company Limited (HOAU) into a new value-added arena, in terms of timing, security and high service quality. Considering that DD innovation reflects a systematic innovation of the whole organization, this paper focuses on it to explore the complex implementation mechanism of management innovation. Multiple approaches were utilized during data collection to meet criteria for trustworthiness, including semi-structured interviews, archival data and observation; and the data analysis went through a five-step process. Findings The results confirm management innovation as a complex project concerning organizational routines which represent a central and fundamental element of organizations. Also, it finds that organizational routines evolve in innovation implementation through a three-phase process consisting of the existing-routine-domination phase, the new-routine-creation phase and -solidification phases, each exhibiting different innovation activities and characteristics of participants’ cognition and behaviors; recreation of new routines is the key for routine evolution, thus for success of management innovations. Research limitations/implications This research is constrained by several limitations. The set-up framework of organizational routine evolution in innovation implementation needs a further confirmation in more organizations; other elements, such as cognition of managers, resource orchestration, environmental elements or organizational culture, should be considered for the success of innovation implementation; and more attention should be paid to the potential power asymmetries among participants and its potential influence on forming shared schemata and subsequent new routines, besides interactions and role taking. Originality/value The findings offer some valuable insights for further research on management innovation and organizational routines and hold important implications for management practices. This research extends research on management innovation and the Kurt Lewin Change Theory and Change Model to explore innovation implementation at a most micro level; furthers research on organizational routines, especially routine dynamic theory, by holding the two-component view and exploring the process through which organizational routines evolve; and contributes to research on the relationship between organizational routines and innovations by taking an organizational routines’ perspective. It reminds managers of the depth and complication of innovation implementation.


2019 ◽  
Vol 26 (8) ◽  
pp. 1593-1607
Author(s):  
Cheong Peng Au-Yong ◽  
Shirley Jin Lin Chua ◽  
Azlan Shah Ali ◽  
Matthew Tucker

Purpose The purpose of this paper is to illustrate the maintenance prioritising for facilities services in high-rise residential buildings in Peninsular Malaysia. Maintenance prioritisation is becoming more prominent in the building maintenance industry due to budget constraints, poor maintenance management and to yield better maintenance performance. Design/methodology/approach Two main categories with eleven facilities services that require maintenance were identified through extensive literature review. A total of 321 returned questionnaires were analysed to distinguish the relationship between the maintenance priority and cost variance. Semi-structured interviews were then conducted to validate the findings. Findings The findings revealed that five essential facilities services were significantly correlated to cost variance and a regression model which examines the probability of over-budget was developed. Meanwhile, the interviews recognised that maintenance prioritisation has impact towards maintenance cost. Research limitations/implications This research focusses on the maintenance priorities of facilities services and their effects to maintenance cost. However, it is undeniable that the maintenance cost can be affected by other factors, contributing to a lower percentage of the total variance in the regression model. Thus, it creates research opportunity to study the factors (i.e. manpower, materials, wear and tear, etc.) affecting the variance of maintenance cost. Practical implications This study is useful to property managers in efforts to enhance the cost performance via appropriate maintenance prioritisation. The essential facilities services should be highly prioritised compared to the value-added facilities services. Originality/value The paper signifies the importance of maintenance prioritisation. It serves as a guide to plan and execute maintenance planning in a more logical way within budget and time constraints.


2020 ◽  
Vol 6 (4) ◽  
pp. 907-928
Author(s):  
Chris Hattingh ◽  
Juan-Pierré Bruwer

Purpose The purpose of this paper is to ascertain the factors that led to Cape Town’s gay village to transform from a “gaytrified” tourism mecca to a “heterosexualised” urban space, from a gay leisure space owner perspective. Design/methodology/approach Empirical observations of the six remaining gay leisure space owners in De Waterkant (population) are taken into account by using semi-structured interviews. All narratives are analysed in Altas.ti – qualitative data analysis software – to identify applicable factors, which participants believe are contributing to the “de-gaying” of Cape Town’s gay village. Findings From the conducted analyses, it becomes apparent that Western theorisation of the “de-gaying” of gay villages is not universally applicable as certain factors contributing to De Waterkant’s demise appear to be location-specific, suggesting that Western theory is insufficient to explain gay spatial realities in non-Western contexts such as South Africa. The identified factors responsible for the “de-gaying” of De Waterkant adversely affect Cape Town’s status as a gay capital and its ability to market this gay neighbourhood to attract the gay tourism market. This may result in lost socio-economic opportunities considering the financial contribution of gay travellers to the local tourist economy. Originality/value This study is the first of its kind to use first-hand narratives of the six remaining gay business owners in De Waterkant and marks the first attempt to investigate the factors, from a non-Western perspective, which led to the “de-gaying” of Africa’s only gay village. Taking into account the socio-economic value added by gay tourism, the findings provide the first non-Western perspective on the demise of Africa’s and South Africa’s only gay neighbourhood from a gay leisure space owner perspective, including the possible repercussions on Cape Town’s local tourist economy. Some tactical considerations and recommendations are suggested to ensure the continuation of gay tourism in the city.


2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Zeyad Mahmoud ◽  
Nathalie Angelé-Halgand ◽  
Kate Churruca ◽  
Louise A Ellis ◽  
Jeffrey Braithwaite

PurposeMillions around the world still cannot access safe, timely and affordable surgery. Considering access as a function of efficiency, this paper examines how the latter can be improved within the context of operating theatres. Carried out in France and Australia, this study reveals different types of waste in operating theatres and a series of successful tactics used to increase efficiency and eliminate wastefulness.Design/methodology/approachData for this qualitative study were collected through 48 semi-structured interviews with operating theatre staff in France (n = 20) and Australia (n = 28). Transcripts were coded using a theory-driven thematic analysis to characterise sources of waste in operating theatres and the tactics used to address them.FindingsThe study confirmed the prominence of seven types of waste in operating theatres commonly found in industry and originally identified by Ohno, the initiator of lean: (1) underutilised operating rooms; (2) premature or delayed arrival of patients, staff or equipment; (3) need for large onsite storage areas and inventory costs; (4) unnecessary transportation of equipment; (5) needless staff movements; (6) over-processing and (7) quality defects. The tactics used to address each of these types of waste included multiskilling staff, levelling production and implementing just-in-time principles.Originality/valueThe tactics identified in this study have the potential of addressing the chronic and structurally embedded problem of waste plaguing health systems' operating theatres, and thus potentially improve access to surgical care. In a global context of resource scarcity, it is increasingly necessary for hospitals to optimise the ways in which surgery is delivered.


2020 ◽  
Vol 7 (2) ◽  
pp. 14-25
Author(s):  
Vanya Annisa Syafira ◽  
Cholid Mawardi ◽  
Mawan Nugraha

ABSTRACT The Management Information System (MIS) transforms the control system in most of the production processes into automation to achieve the efficiency and effectiveness of production time. If a business is to excel against its competitors, it must be able to meet consumer demand on time, eliminating non-value-added production time and making time spent on activities more efficient. value-added. By researching data by compiling flowcharts and creating tables, authors make direct observations on CV. True printing service. The print production process has machine performance standards which are the standards necessary to determine the capacity of the printing machine. To determine the efficiency of the printing process, it is necessary to know the detailed steps of the process according to the work sequence displayed as a flowchart of the printing process. This flowchart is a key factor in achieving rapid production so that it supports Just In Time (JIT) as the processes in each subsection can be clearly identified. By using a flowchart, any errors that arise in a process can be resolved quickly and correctly so that the results obtained can be optimal and do not interfere with other processes. Therefore, MIS supports the realization of the JIT by facilitating traceability and seeing as early as possible if there is a lack of time and quantity of production. JIT is designed to achieve the most efficient delivery time possible by eliminating all kinds of waste in the production process so that the print production process is optimal. The integration of MIS and JIT is achieved by preparing automatic calculation tables for input, process and output which are the optimal and non-optimal decisions of the printing process. 


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