scholarly journals DEVELOPING AN UNCERTAINTY ANALYSIS MODEL FOR OFF-SITE BUILDING PRODUCTION

2015 ◽  
Vol 2 (1) ◽  
Author(s):  
Mehrdad Arashpour ◽  
Ron Wakefield
Keyword(s):  
Uncertainty Analysis ◽  
Construction Projects ◽  
Production Data ◽  
Analysis Model ◽  
Modeling Uncertainty ◽  
Construction Companies ◽  
Risk Seeking ◽  
The Past ◽  
Project Complexity ◽  
Management Of Uncertainty

The hybrid use of off-site and on-site processes in construction projects has increased significantly over the past decade. The analysis and management of uncertainty in hybrid projects is not a trivial task as workflow variability in off-site and on-site operations can interact and amplify one another. The aim of this paper is to analyze various drivers of uncertainty such as high levels of project complexity, risk seeking behaviors, unavailability of resources, and combined variability in hybrid projects. Production data of two Australian construction companies were collected and utilized in modeling uncertainty. Findings show the significant effect of uncertainty drivers on project plan reliability and the necessity of an adequate uncertainty analysis and management in hybrid projects. The results of this study enhance the knowledge about management of hybrid projects and have the potential to improve the way construction companies deal with uncertainty in project environments.

scholarly journals A Research Oriented Framework for the Development of Marketing Strategies in the Turkish Construction Sector

2014 ◽  
Vol 5 (15) ◽  
pp. 7-24
Author(s):  
M. Yaman ÖZTEK ◽  
Özgür ÇENGEL
Keyword(s):  
Economic Growth ◽  
Construction Projects ◽  
Management Strategies ◽  
Business Environment ◽  
Marketing Strategies ◽  
Marketing Management ◽  
Construction Sector ◽  
Construction Companies ◽  
The Past ◽  
Fierce Competition

In the Turkish Business Environment, construction sector plays a crucial role in the context of overall economic growth and sustainability. However, there have not been effective marketing strategies being implemented in order to enhance the profitability of the sector. This had occurred partly due to the fact that demand had been above the level of supply in the past. In contrast, nowadays fierce competition enforces that many construction projects are being promoted, thereby increasing the level of supply compared to the level of demand unlike what has happened in the past. As a result, genuine marketing strategies need to be emerged in order for construction companies to stay alive in this sector. With a sample size of 152, this paper aims to research the economic growth in terms of Turkish economy and construction sector. Besides, construction types, the biggest markets of construction companies, marketing/management strategies, and problems associated with the sector have been researched and debated with a specific focus on e-marketing/management approaches that have recently been revealed.

SEJARAH KONFLIK KEBANGKITAN ISLAM DI MINANGKABAU: Sebuah Tinjauan Awal Terhadap Proses Kemunculannya

2018 ◽  
pp. 33-48
Author(s):  
Ihsan Sanusi
Keyword(s):  
Human Life ◽  
Initial Period ◽  
Analysis Model ◽  
Islamic Revival ◽  
Religious Texts ◽  
Interactive Analysis ◽  
The Past ◽  
The Reformation ◽  
History Of ◽  
Correct Understanding

This article in principle wants to examine the history of the emergence of the conflict of Islamic revival in Minangkabau starting from the Paderi Movement to the Youth in Minangkabau. Especially in the initial period, namely the Padri movement, there was a tragedy of violence (radicalism) that accompanied it. This study becomes important, because after all the reformation of Islam began to be realized by reforming human life in the world. Both in terms of thought with the effort to restore the correct understanding of religion as it should, from the side of the practice of religion, namely by reforming deviant practices and adapted to the instructions of the religious texts (al-Qur'an and sunnah), and also from the side of strengthening power religion. In this case the research will be directed to the efforts of renewal by the Padri to the Youth towards the Islamic community in Minangkabau. To discuss this problem used historical research methods. Through this method, it is tested and analyzed critically the records and relics of the past. In analyzing the data in this research basically used approach or interactive analysis model by Miles and Huberman. In this analysis model, the three components of the analysis are data reduction, data presentation, and conclusion drawing or verification, the activity is carried out in an interactive form with the process of collecting data as a process that continues, repeats, and continues to form acycle.

scholarly journals Research for Risk Management of Construction Projects in Taiwan

2021 ◽  
Vol 13 (4) ◽  
pp. 2034
Author(s):  
Chien-Liang Lin ◽  
Bey-Kun Chen
Keyword(s):  
Risk Management ◽  
Risk Analysis ◽  
Structural Equation ◽  
Construction Projects ◽  
Construction Project ◽  
Equation Modeling ◽  
Analysis Model ◽  
Sustainable Operation ◽  
Management Procedure ◽  
Risk Managers

Risks inevitably exist in all stages of a project. In a construction project, which is highly dynamic and complex, risk factors affect the expected achievement rates of the three main performance goals, namely schedule, cost, and quality. A comprehensive risk management procedure requires three crucial steps: risk confirmation, analysis, and treatment. Risk analysis is the core of risk management. Through structural equation modeling, this study developed a risk analysis model that takes a different perspective and considered the occurrence probability of risk events and the extent to which these events affect a project. The contractor dimension was discovered to exert the strongest influence on an overall project, followed by the subcontractor and design dimensions. This paper proposes a novel construction project risk analysis model, which considers the entire project. The proposed model can be used as a reference for risk managers to make decisions about project risks, so as to achieve the ultimate goal of saving resources and the sustainable operation of the construction project.

Empirically validating five propositions regarding 3D visualizations for subsurface utility projects

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Mechiel van Manen ◽  
Léon olde Scholtenhuis ◽  
Hans Voordijk
Keyword(s):  
Construction Projects ◽  
3D Visualization ◽  
Three Dimensional ◽  
Urban Environments ◽  
Content Type ◽  
Complexity Level ◽  
Daily Work ◽  
Complex Projects ◽  
Project Complexity ◽  
Multiple Case

PurposeThis study aims to empirically validate five propositions about the benefits of three-dimensional (3D) visualizations for the management of subsurface utility projects. Specifically, the authors validate whether benefits from 3D in the literature of building construction project management also apply to subsurface utility projects and map them using a taxonomy of project complexity levels.Design/methodology/approachA multiple case study of three utility construction projects was carried out during which the first author was involved in the daily work practices at a utility contractor. 3D visualizations of existing project models were developed, and design and construction meetings were conducted. Practitioners' interactions with and reflections on these 3D visualizations were noted. Observational data from the three project types were matched with the five propositions to determine where benefits of 3D visualizations manifested themselves.FindingsPractitioners found that 3D visualizations had most merit in crowded urban environments when constructing rigid pipelines. All propositions were validated and evaluated as beneficial in subsurface utility projects of complexity level C3. It is shown that in urban projects with rigid pipelines (project with the highest complexity level), 3D visualization prevents misunderstanding or misinterpretations and increases efficiency of coordination. It is recommended to implement 3D visualization approaches in such complex projectsOriginality/valueThere is only limited evidence on the value 3D visualizations in managing utility projects. This study contributes rich empirical evidence on this value based on a six-month observation period at a subsurface contractor. Their merit was assessed by associating 3D approaches with project complexity levels, which may help utility contractors in strategically implementing 3D applications.

Development, operational experience and implications for future design of fast reactors in Western Europe

1990 ◽  
Vol 331 (1619) ◽  
pp. 367-380
Keyword(s):  
Fast Reactor ◽  
Western Europe ◽  
Development Programme ◽  
Operational Experience ◽  
Zero Energy ◽  
Small Power ◽  
Construction Companies ◽  
Future Design ◽  
The Past ◽  
Commercial Size

Over the past 30 years, the partners now collaborating in Europe on fast-reactor development have taken the technology from a theoretical possibility to an engineering reality. In that time there has been a progression from experimental zero energy facilities followed by small power-producing engineering test reactors, to prototype reactors and a large commercial-size reactor. The paper describes the highlights of the reactor programmes in the partner countries and by example illustrates the experience gained from reactor operation and some of the principal activities in the supporting development programme. These include such topics as fuel performance, fast-neutron physics, liquid-metal thermal hydraulics, sodium chemistry, instrumentation and safety aspects. The paper concludes by summarizing some of the main objectives of the current development programme, which is directed to the support of the European Fast Reactor design being prepared by the European design and construction companies.

Safety Analysis Model of DUCG Based on FMEA/FTA

2018 ◽  
Author(s):  
Zhenxu Zhou ◽  
Hao Nie ◽  
Chunling Dong ◽  
Qin Zhang
Keyword(s):  
Failure Modes ◽  
Fault Tree Analysis ◽  
Safety Analysis ◽  
Nuclear Industry ◽  
Analysis Model ◽  
Industrial Systems ◽  
The Past ◽  
Research Cycle ◽  
Dynamic Uncertain Causality Graph ◽  
Analytical Power

Failure Modes and Effects Analysis (FMEA) is a useful tool to find possible flaws, to reduce cost and to shorten research cycle in complex industrial systems. Fault Tree Analysis (FTA) has gained credibility over the past years, not only in nuclear industry, but also in other industries like aerospace, petrochemical, and weapon. Both FMEA and FTA are effective techniques in safety analysis, but there are still many uncertain factors in them that are not well addressed until now. This paper combines FMEA and FTA based on Dynamic Uncertain Causality Graph (DUCG) to solve this issue. Firstly, the FMEA model is mapped into a corresponding DUCG graph. Secondly, FTA model is mapped into a corresponding DUCG graph. Thirdly, combine the above DUCG graphs. Finally, users can modify the combined DUCG graph and calculations are made. This paper bridges the gap between FMEA and FTA by combining the two methods using DUCG. And additional modeling power and analytical power can be achieved with the advantages of the combined DUCG safety analysis model and its inference algorithm. This method can also promote the application of DUCG in the system reliability and safety analysis. An example is used to illustrate this method.

scholarly journals Measuring the performance of project risk management: a preliminary model

2019 ◽  
Vol 11 (1) ◽  
pp. 1984-1991
Author(s):  
Alfredo Federico Serpell ◽  
Ximena Ferrada ◽  
Larissa Rubio
Keyword(s):  
Risk Management ◽  
Construction Projects ◽  
Research Literature ◽  
Lessons Learned ◽  
Project Risk Management ◽  
Project Risk ◽  
Know How ◽  
Construction Companies ◽  
Important Concern ◽  
Preliminary Model

Abstract The function of project risk management (PRM) is to understand the uncertainty that surrounds a project and to identify the potential threats than can affect it as well as to know how to handle these risks in an appropriate way. Then, the measurement of the performance of PRM becomes an important concern, an issue that has not yet been addressed in the research literature. It is necessary to know how successful the application of the PRM process is and how capable is the process within the organization. Regarding construction projects, it is essential to know whether the selected responses to mitigate or eliminate identified risks were suitable and well implemented after the execution of the project. This paper presents a critical analysis of the relevance of measuring the performance of PRM and the benefits of doing so. Additionally, it presents a preliminary and pioneering methodology to measure the performance of PRM through the evaluation of the adequacy of responses applied to mitigate risks as well as to evaluate the resulting impacts as indicators of the effectiveness of these actions at the end of the project. This knowledge will allow construction companies to incorporate good practices, generate lessons learned, and thereby to promote a continuous improvement of the whole PRM process.

scholarly journals Application of BIM and 3D Laser Scanning for Quantity Management in Construction Projects

2020 ◽  
Vol 2020 ◽  
pp. 1-10
Author(s):  
Thu Anh Nguyen ◽  
Phong Thanh Nguyen ◽  
Sy Tien Do
Keyword(s):  
Construction Industry ◽  
Construction Projects ◽  
Laser Scanning ◽  
Essential Role ◽  
Industrial Revolution ◽  
Management Process ◽  
3D Laser Scanning ◽  
Economic Sectors ◽  
Construction Companies

The construction industry has played an essential role in the process of modernization and industrialization and it has also been a major factor in determining the development of the infrastructure for other economic sectors. Construction companies consider the measurement of work progress, which often wastes time and has a low resolution, to be one of the most challenging problems faced by project management. Therefore, this research aimed to propose practical solutions by applying recent technological achievements of the 4.0 industrial revolution to improve the efficiency of the quantity management process. By utilizing the advantages and features of a BIM model and 3D laser scanning, this paper proposes that adopting a BIM model and 3D laser scanning has the potential to improve the accuracy and efficiency of the quantity management process. The case study demonstrated some typical tasks to evaluate accuracy and efficiency as well as to showcase the research proposal.

scholarly journals Characteristics of Procurement Methods in Malaysia – Comparing Design-Bid-Build, Design-Build and Construction Management

2020 ◽  
Vol 11 (3) ◽  
Author(s):  
Azeanita Suratkon ◽  
◽  
Riduan Yunus ◽  
Rafikullah Deraman ◽  
◽  
...  
Keyword(s):  
Construction Industry ◽  
Construction Management ◽  
Construction Projects ◽  
Building Construction ◽  
Technical Expertise ◽  
Time Cost ◽  
Project Complexity ◽  
Design Build ◽  
Procurement Method ◽  
Design Bid Build

Design-Bid-Build (DBB) or commonly known as Traditional method is the earliest and most prevalent procurement method used in Malaysian construction industry. Design-Build (DB) and Construction Management (CM) procurement methods were later introduced in Malaysia as an endeavour to satisfy and accommodate the increase in project complexity and the need for avoiding drawbacks of the Traditional methods. Each procurement method has different nature and possesses certain characteristics. Therefore, this study was carried out to ascertain and compare the characteristics of these three procurement methods that are implemented in building construction projects in Malaysia. A questionnaire survey was conducted among architects, consultants, contractors and owners or developers to elicit their feedback on the characteristics which were categorised into time, cost, quality, complexity and flexibility, degree of involvement and responsibility allocation and technical expertise. The findings indicated that only DB method almost fulfils all the characteristics under the six categories, whereas, DBB methods garnered agreement only for certain characteristics under time, cost, complexity and flexibility and technical expertise categories. Meanwhile, the only CM method’s characteristics that satisfy agreement from the respondents are the often used of fast track approach and lack of certainty in price. This study concludes that when a procurement method is adopted for a construction project, not all the features or characteristics will turn out as expected. There are many factors that contribute and are influential on the success in procurement methods that are worth for further investigation.

scholarly journals Integration of digital technologies in the field of construction in the Russian Federation

2019 ◽  
Vol 11 (3) ◽  
pp. 38-47 ◽  
Author(s):  
Elena Aleksandrova ◽  
Victoria Vinogradova ◽  
Galina Tokunova
Keyword(s):  
Russian Federation ◽  
Construction Projects ◽  
High Performance ◽  
Digital Technologies ◽  
Unmanned Vehicles ◽  
Business Relationships ◽  
Construction Companies ◽  
Digital Ecosystem ◽  
The Russian Federation ◽  
The Government

Abstract The article presents the study that mainly focused on the changes made as a result of collaborative innovations in business relationships developed during the period of digitalisation in the construction field of the Russian Federation. It is a conceptual piece of work based on the systematic approach to the analysis, literature review and comparative analysis. The digitalisation of investment and construction projects is technologically based on the integration of solutions, such as the building information model (BIM), high-performance IT-systems, cloud platforms and the Internet-of-Things, resulting in unified and constant connectivity, specialised mobile applications, robotic equipment, unmanned vehicles, additive technologies, AR/VR services for the analysis of Big-Data, and blockchain technologies. The integration of digital technologies is a radical innovation, which highlights collaborative innovations in business relationships and makes it possible to form a united digital ecosystem that allows firms to manage, control and regulate the full lifecycle of a construction project, and then, the property in real-time. The contribution of this work to the construction field is the offered model for the creation of a digital ecosystem and the described role of the government in the model. Also, this work can be used for the integration of BIM technologies in construction companies.

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