scholarly journals ANALYSIS OF UNCERTAINTY IN A CONSTRUCTION PROJECT

YMER Digital ◽  
2021 ◽  
Vol 20 (12) ◽  
pp. 324-332
Author(s):  
Dr. A Paul Makesh ◽  

This article presents the analysis of uncertainty and effectiveness in cost to construction project. Theoretical part describes various definitions of uncertainty, risk both with there sources as calculation bias, information ambiguity and data inaccuracy in construction projects. Main analysis is connected with the project's appraisal phase and its stages were the detailed information is the crucial factor for correct decision- making procedures under uncertainty and risk. Consequently this article is presenting various types risk what are undistinguishable from uncertainty circumstances in construction. After the description of risk and uncertainty types list of solutions were prepared. Application of the suggested risk and uncertainty extenuating techniques in practice was shown as analysis of precision and bias dependence with available information at different stages of appraisal phase.It is emphasized on uncertainty and risk management problem in the construction's decision- making. Recently methods based on the utility theory, game theory, statistical distribution and probability, were improved and adjusted due to decision-making needs in construction. That is why the model with implemented multiple-criteria approaches is suggested both as a tool for dealing with the uncertainty and risk problems and to meet the needs of project managers in appraisal phase.

2021 ◽  
Vol 56 (3) ◽  
pp. 473-484
Author(s):  
Zulkifli Lubis

The biggest threat that results in the project not being successful is failure to build a stakeholder project. Based on research on construction projects in developing countries, the lack of communication among workers due to cultural uniformity and the uniqueness of their respective regions can become work constraints that can affect implementation performance and productivity, namely, there is a 69.61% decrease in time performance. The main objective of this research is to analyze the role of communication management in improving the performance of construction project managers in developing countries, particularly the role of construction managers in implementing a construction project. This research uses a qualitative approach and a case study method. Sampling using purposive sampling. Forum Group Discussion to see how the opinions of construction project managers in Indonesia view the importance of communication management in the success of construction projects. The study results explain that the need for Public Relations Infrastructure management plays a role in ensuring various policies and communication to the public. This is a reflection of the effective function of public relations in the implementation of infrastructure development. In carrying out the construction, the construction project manager must pay attention to communication dynamics to support the success of infrastructure development projects. Contractors and other parties involved in infrastructure development must raise awareness of the essence of effective communication in fostering trust in the public concerned with infrastructure development.


2020 ◽  
Vol 27 (9) ◽  
pp. 2287-2313 ◽  
Author(s):  
Duc Hoc Tran

PurposeProject managers work to ensure successful project completion within the shortest period and at the lowest cost. One of the main tasks of a project manager in the planning phase is to generate the project time–cost curve, and furthermore, to determine the most appropriate schedule for the construction process. Numerous existing time–cost tradeoff analysis models have focused on solving a simple project representation without regarding for typical activity and project characteristics. This study aims to present a novel approach called “multiple-objective social group optimization” (MOSGO) for optimizing time–cost decisions in generalized construction projects.Design/methodology/approachIn this paper, a novel MOGSO to mimic the time–cost tradeoff problem in generalized construction projects is proposed. The MOSGO has slightly modified the mechanism operation from the original algorithm to be a free-parameter algorithm and to enhance the exploring and exploiting balance in an optimization algorithm. The evidential reasoning technique is used to rank the global optimal obtained non-dominated solutions to help decision makers reach a single compromise solution.FindingsTwo case studies of real construction projects were investigated and the performance of MOSGO was compared to those of widely considered multiple-objective evolutionary algorithms. The comparison results indicated that the MOSGO approach is a powerful, efficient and effective tool in finding the time–cost curve. In addition, the multi-criteria decision-making approaches were applied to identify the best schedule for project implementation.Research limitations/implicationsAccordingly, the first major practical contribution of the present research is that it provides a tool for handling real-world construction projects by considering all types of construction project. The second important implication of this study derives from research finding on the hybridization multiple-objective and multi-criteria techniques to help project managers in facilitating the time–cost tradeoff (TCT) problems easily. The third implication stems from the wide-range application of the proposed model TCT.Practical implicationsThe model can be used in early stages of the construction process to help project managers in selecting an appropriate plan for whole project lifecycle.Social implicationsThe proposal model can be applied to multi-objective contexts in diversified fields. Moreover, the model is also a useful reference for future research.Originality/valueThis paper makes contributions to extant literature by: introducing a method for making TCT models applicable to actual projects by considering general activity precedence relations; developing a novel MOSGO algorithm to solving TCT problems in multi-objective context by a single simulation; and facilitating the TCT problems to project managers by using multi-criteria decision-making approaches.


2017 ◽  
Vol 5 (1) ◽  
Author(s):  
I Gde Eka Dharsika ◽  
IN Budiartha ◽  
I W Yansen

Abstract: Problems in construction projects caused by the extension of working time and an increase in labor costs. A limited ability of project management contribute to the decline in the quality of project work. The quality of project manager has an important role to smooth a construction project. Dedication in this profession requires project managers to carry out the work going according to plan. Analyzing the quality of the project manager for the implementation of construction projectsis one wayto measure the quality of a project. It needs  a right measurements way to providean accurate assessment of qualified and reliable project managers. This study aimed to obtain and analyze the factors that affect the quality of the project manager and its to construction projects.This used a sample of 45 respondents from several construction projects in the area of Badung and Denpasar during the period 2007-2012. The method used in this study is the method of multiple linear regression analysis by testing for the F-test and t-test. The results found 8 dominant factor that has a value eigen values??> 1. Sequentially, the factors that have been named are experience 41.63%,  education 9.278%, knowledge 7.240%, ability 5.088%, character 4.047%, network 3.843%, relationship communication 3.550%, confidence 3.357%. Influence the quality of the project manager on the performance fee of 51.9%, against 43.1% for quality performance, on-time performance, with a value of 57.9%. The results of this study prove that the powerful influence between the quality of the construction project manager to the implementation of construction projects.


2021 ◽  
Vol 13 (19) ◽  
pp. 11035
Author(s):  
Hossam H. Mohamed ◽  
Ahmed H. Ibrahim ◽  
Asmaa A. Soliman

One of the most vital construction project aspects is to complete a project in minimum time restricted to the time–cost trade-off. Overlapping activities’ planning and their impact on the project under limited resource constraints should be considered. This study aims to develop a model for optimizing the project schedule and cost regarding overlap activities and their impacts. This study reviews previous studies on changes in past activities likely to produce additional reworking of subsequent activities. In addition, an AHP model is developed to assess the reworking time of subsequent activities based on possible changes in previous activities. In addition, five realistic construction projects are applied. Finally, an optimizing model is developed for optimizing project time and cost using overlapping techniques by using the Java program. The results indicate that the proposed model can be used by project managers easily for solving time and cost optimization problems. In addition, it can be updated to continuously improve its functionality. Finally, it can be updated later to support AI for finding better solutions.


2020 ◽  
Vol 6 (4) ◽  
pp. 1365-1375
Author(s):  
Shahid Iqbal ◽  
Nabeel Ehtisham ◽  
Syed Farqaleet K. Bukhari ◽  
Shahid Mahmood

Project Risk management is known as an important workout for the achievement of desired objectives for the construction projects. Success in construction project is quantified by attaining its enactment in terms of project quality, project cost, project time, project safety. Construction projects in Pakistan, typically in the whole world have a high risk of being pointedly late and over budget. However, a bit of schedule and cost related risks are unavoidable in any construction project around the world. It was found out that the engineers were generally nominated earlier the design phase of any project. Due to this reason maximum projects did not get the advantage from SMEs at the planning stage of the project. This study also supports that project managers who are engineers be involved in construction projects site selection, in preliminary budget and schedule development by using good Engineering Management Practices.


Author(s):  
Alexander Krasilnikov

The paper discusses evolution of the concept of risk in economics. History of probabilistic methods and approaches to risk and uncertainty analysis is considered. Expected utility theory, behavioral approaches, heuristic models and methods of neuroeconomics are analyzed. Author investigates stability of neoclassical program related to risk analysis and suggests further directions of development.


Author(s):  
Mohd Affendi Ahmad Pozin ◽  
Mohd Nasrun Mohd Nawi ◽  
Md Azree Othuman Mydin ◽  
Salman Riazi Mehdi Riazi ◽  
Ayub Ilfandy Imran

In this article, we discuss about WhatsApp application practise around project managers in managing IBS construction projects. The WhatsApp application offera great advantages, especially in collecting, managing information and data in a timely manner. Previous study highlighted effective communication become as a bridge between practitioners to share a knowledge, information and integration. Unfortunately, there is still a lack of empirical studies on how efficiencies of WhatsApp application overcome the communication barriers while managing distributed project teams on construction project. Thus this study seeks to explore communication performance perceived through WhatsApp application. The semi-structured interview methodology was used to gain in-depth knowledge from several project managers who have experiences in managing construction projects virtually through WhatsApp application. The finding from this study revealed that WhatsApp application has become an effective communication channel to overcome the barriers of communication while managing distributed teams and allowing timely information sharing.


2020 ◽  
Vol 10 (2) ◽  
pp. 97-123 ◽  
Author(s):  
Amin Mahmoudi ◽  
Mehdi Abbasi ◽  
Xiaopeng Deng ◽  
Muhammad Ikram ◽  
Salman Yeganeh

PurposeSelecting a suitable contract to outsource construction projects is an ongoing concern for project managers and organizational directors. This study aims to propose a comprehensive model to manage the risks of outsourced construction project contracts.Design/methodology/approachTo employ the proposed model, firstly, the types of contracts and risks in the organization should be identified, then, to prioritize the contracts, the identified risks are considered as criteria. After receiving the experts' opinions, the best–worst method (BWM) integrated with grey relation analysis (GRA) method was used to prioritize the contracts. BWM and GRA are multi-criteria decision-making methods with different approaches and applications. In the current study, BWM has been employed to calculate the weights of criteria because it has better performance than other methods such as the analytic hierarchy process (AHP). After calculating the weights of criteria, the GRA method has been utilized for ranking the alternatives.FindingsAccording to the results obtained from the case study, the cost plus award fee contract is the most suitable alternative for outsourcing construction projects. The proposed methodology can be practically applied through different types of the projects such as construction or “engineering, procurement and construction”.Originality/valueTo the best of our knowledge, this is the first time a conceptual model has been proposed to select an appropriate contract for construction projects. Also, for the first time, the BWM integrated with GRA method has been used to prioritize project contracts based on the potential risks. The proposed model can contribute to project managers for selecting a suitable contract with the least risk in construction projects.


2020 ◽  
Vol 12 (24) ◽  
pp. 10376
Author(s):  
Sławomir Wawak ◽  
Žanesa Ljevo ◽  
Mladen Vukomanović

Project management frameworks describe the preferred approaches to project quality management, as well as applicable methods and tools. Despite this, quality problems in the construction project are still widespread. This study aimed to identify crucial quality-related factors in construction project management and find relations between them, to help researchers and project managers better respond to quality issues. A systematic literature review (SLR) was used to identify previous studies on quality-related factors. Literature review and further quantitative analysis revealed that quality-related factors are related to three categories: Quality of project process, quality of organisational processes, and quality of results (products), which together create the quality of the whole construction project. The results highlight quality-related factors (14 related to the quality of processes, 6 to quality of an organisation, and 13 to quality of products) that should be taken into account in further research, as well as planning and executing construction projects. Their inclusion at the planning stage should help project managers, sponsors, and steering committees avoid or minimise quality-related problems. Moreover, this study sheds an interesting light on quality. We found that the quality of processes and quality of an organisation has precedence over the final product quality. Based on the results of the study, structural equation modelling (SEM) was used to create a null model that will be the starting point for further research in the construction enterprises.


2019 ◽  
Vol 276 ◽  
pp. 02007
Author(s):  
Kartika Puspa Negara ◽  
Fiona Lamari ◽  
Connie Susilawati ◽  
Bambang Trigunarsyah

The influence of active client involvement towards project construction success is gaining recognition in the last few decades. The growing concern on the client involvement has drifted the perception towards client away from the passive role into contributor of project success. During client involvement in the construction project, a representative from client or client project manager (CPM) should be complemented with certain competencies in order to succeed in commissioning construction projects. Evidence shows that some public construction projects in Indonesia failed due to the lack of competency of client project managers. Whilst most of the previous studies concern on the competency of general project managers, this paper specifically investigates competency of project manager from client side who works as a civil servant, and commissioning public construction sectors. This paper aims to identify the important competencies required by CPM in construction projects in Indonesia and examine current Indonesian CPM competency standard. Relative Importance Index (RII) was employed to assess the important level of competencies. The findings will enrich understanding on client project manager competency and become a basis to undergird further empirical research in client project manager development areas.


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