scholarly journals Resource-Based Quality Performance Estimation Method for Construction Operations

2021 ◽  
Vol 11 (9) ◽  
pp. 4122
Author(s):  
Young-Jun Park ◽  
Chang-Yong Yi
Keyword(s):  
Construction Projects ◽  
Estimation Method ◽  
Project Managers ◽  
Performance Estimation ◽  
Construction Simulation ◽  
Construction Operations ◽  
Quality Performance ◽  
Management Objectives ◽  
Performance Indexes ◽  
Reducing Costs

Construction quality is one of the primary management objectives relating to duration and cost for construction projects. Project managers struggle with minimizing duration and cost while maximizing quality for construction projects. In construction projects, duration and cost have management priorities. On the other hand, quality is considered a matter of achievement only when it reaches a certain level. Although the importance of quality control in construction management has been constantly discussed, it has still been sacrificed under the goal of shortening construction duration and reducing costs. This study presents a method for estimating the quantitative quality performance of construction operations in which the level of detail is breaking into the work task level for intuitive quality performance evaluation. For this purpose, quality weights of resources that have a proportional quality importance weight and quality performance indexes of resources are utilized for estimating the quantitative quality performance of construction operations. Quality performance estimation and the resource allocation optimization system is presented and validated using a construction simulation model.

Cost Performance Estimation in Construction Projects Using Fuzzy Time Series

2015 ◽  
Vol 6 (1) ◽  
pp. 66-75 ◽  
Author(s):  
Mostafa Salari ◽  
Nooshin Yousefi ◽  
Mohhmad Mahdi Asgary
Keyword(s):  
Time Series ◽  
Construction Projects ◽  
Project Managers ◽  
Performance Estimation ◽  
Fuzzy Time Series ◽  
Linguistic Terms ◽  
Cost Performance ◽  
Times Series ◽  
Future Performance ◽  
Proposed Model

In this paper, the authors develop a model to estimate future performance of construction projects. For the purpose of estimation, fuzzy times series models are used as an effective approach in estimation process. Furthermore, linguistic terms are applied to interpret the fuzzy-based results. The proposed model can assists project managers to develop their knowledge concerning the future aspects of project cost performance. It also provides the early warning of weak upcoming performance of project and extends the feasible time for corrective actions. Eventually, a small example has been provided to illustrate how the new model can be implemented in reality.

scholarly journals Project Leadership and Quality Performance of Construction Projects

2017 ◽  
Vol 4 (2) ◽  
Author(s):  
SPG Buba ◽  
BL Tanko
Keyword(s):  
Leadership Styles ◽  
Leadership Style ◽  
Construction Projects ◽  
Poor Quality ◽  
Project Managers ◽  
Performance Criteria ◽  
Quality Performance ◽  
Aesthetic Quality ◽  
Public Projects ◽  
The Impact

Background: The construction industry in Nigeria, is pigeonholed by poor quality of construction products as a result of the inherent corruption in the country. Lack of purposeful leadership and inappropriate choice of leadership styles in the industry have been attributed to project failure. Abandoned and failed projects are more predominant in the public sector which litters every corner of the country. Objectives: The objective of this paper is to assess the impact of leadership styles on quality performance criteria of public projects in Nigeria. Methodology: A total of 43 questionnaires were distributed to 3 key groups of respondents (Quantity Surveyors, Builders, and Architects) who are project managers in Nigeria. Descriptive and Inferential statistics were used to analyse the data using the Statistical Package for Social Sciences (SPSS). Likert Scale was used to measure the independent variables (leadership style): facilitative, coaching, delegating and directing; and the level of achievement of projects based on the dependent variables (quality and function performance criteria) which are: achieving highest aesthetic quality; and functional building that fits its purpose. Findings: The study revealed that Directing is the major leadership style used by project managers in Nigeria. Amongst the leadership styles which has the most impact on quality performance indicators is also directing which has the most relative influence on achieving highest aesthetic quality and functional building that fits its purpose. Conclusion/Recommendation/Way forward: The underlying relationship between Directing leadership styles and the performance criteria of achieving highest aesthetic quality and functional building that fits its purpose will be beneficial to the Nigerian construction environment.

Cost Performance Estimation in Construction Projects Using Fuzzy Time Series

2016 ◽  
pp. 359-370
Author(s):  
Mostafa Salari ◽  
Nooshin Yousefi ◽  
Mohhmad Mahdi Asgary
Keyword(s):  
Time Series ◽  
Early Warning ◽  
Construction Projects ◽  
Project Managers ◽  
Performance Estimation ◽  
Fuzzy Time Series ◽  
Cost Performance ◽  
Times Series ◽  
Future Performance ◽  
Proposed Model

In this chapter, the authors develop a model to estimate future performance of construction projects. For the purpose of estimation, fuzzy times series models are used as an effective approach in estimation process. Furthermore, linguistic terms are applied to interpret the fuzzy-based results. The proposed model can assist project managers to develop their knowledge concerning the future aspects of project cost performance. It also provides the early warning of weak upcoming performance of project and extends the feasible time for corrective actions. Eventually, a small example has been provided to illustrate how the new model can be implemented in reality.

Investigation of Cost-Influencing Factors Potentially ‎Controllable by Main Contractors in Construction Projects in ‎Iraq

2020 ◽  
Vol 38 (7A) ◽  
pp. 1069-1076
Author(s):  
Layth T. Ali ◽  
Raid S. Abid Ali ◽  
Zeyad S. M. Khaled
Keyword(s):  
Construction Projects ◽  
Project Managers ◽  
Cost Overrun ◽  
Public And Private ◽  
Importance Index ◽  
Labor Recruitment ◽  
Supply Planning ◽  
Major Factors ◽  
And Control ◽  
The Impact

Cost overrun in construction projects is a common phenomenon in Iraq. This might occur due to diversity of factors. This study aims to identify the factors influencing construction projects cost that are potentially controllable by main contractors. A field study through a questionnaire survey was directed to a sample of related Iraqi professional engineers from general contracting companies at both public and private sectors. Their opinions on the impact and frequency of each factor were investigated. The questionnaire offered (59) factors classified in (8) categories namely; legislations, financial and economic, design, contractual, site management, material, labor and equipment. The factors were ranked according to the highest Relative Importance Index (RII). The study revealed (10) major factors that are potentially controllable by main contractors namely; labor productivity, sub-contractors and suppliers performance, equipment productivity, site organization and distribution of equipment, experience and training of project managers, scheduling and control techniques, planning for materials supply, planning for equipment supply, materials delivery and planning for skilled labor recruitment. Recommendations to aid contractors and owners in early identification of these factors are also included in this study.

Implementation of medium voltage remote controlled switches to improve quality performance indexes – a case study

2020 ◽  
Vol 21 (4) ◽  
Author(s):  
Julio Cezar Santos ◽  
Wagner Santos ◽  
Guilherme Cestaro ◽  
Marcio Zamboti Fortes ◽  
Henrique Henriques
Keyword(s):  
Energy Distribution ◽  
Electric Energy ◽  
Regulatory Agencies ◽  
Quality Performance ◽  
Medium Voltage ◽  
Fast Detection ◽  
Performance Indexes ◽  
Short Time ◽  
Operation Center

AbstractThe growing demand for quality in the Energy Distribution Service, both by consumers and by regulatory agencies, obliges most distribution utilities to apply technologies that can be easily implemented and produce results in a short term horizon. The telecontrol technology is an essential tool every time it is necessary to fast restore the energy supply. This technology, which is completely supervised and controlled by the system operation center, allows the fast detection of a fault at a distance and switch an equipment without the aid of the operating crew, thus reducing the time that the power supply is unavailable. The present paper describes a Telecontrol Project, incorporated in an electric energy distribution utility in Brazil and compares the results in quality improvement with others usual investment actions, such as operating and maintenance procedures, laterals protection and network reinforcement. This paper shows, analyzing the results, that to improve the reliability indexes in a short time, when the company’s economic recovery is more important, the application of remotely controlled switch is more effective.

Factors affecting the delivery of optimum health and safety on construction projects during the covid-19 pandemic in Zimbabwe

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Benviolent Chigara ◽  
Tirivavi Moyo
Keyword(s):  
Factor Analysis ◽  
Construction Projects ◽  
Health And Safety ◽  
Project Managers ◽  
Small Sample ◽  
Related Factors ◽  
Content Type ◽  
Factors Affecting ◽  
Related Risk ◽  
Monitoring And Enforcement

Purpose The purpose of this study was to investigate the perceptions of construction professionals relative to factors that affect the delivery of optimum health and safety (H&S) on construction projects during the COVID-19 pandemic. Design/methodology/approach The study adopted a quantitative design which entailed the distribution of a web-based questionnaire among construction professionals, namely, architects, construction/project managers, engineers, H&S managers and quantity surveyors working for contractors and construction consultants in Zimbabwe. The data were analysed with descriptive and inferential statistics. Factor analysis was used to reveal interrelated significant sets of factors affecting the delivery of optimum H&S. Findings Factor analysis revealed nine components/factors: change and innovation-related, monitoring and enforcement-related, production-related, access to information and health service-related, on-site facilities and welfare-related, risk assessment and mitigation-related, job security and funding-related, cost-related and COVID-19 risk perception-related factors as the significant factors affecting the delivery of optimum H&S during the COVID-19 pandemic in Zimbabwe. Research limitations/implications The results highlighted the need for social dialogue among construction stakeholders to support initiatives that will enhance the delivery of H&S on construction projects. Construction stakeholders may find the results useful in highlighting the areas that need improvement to protect workers’ H&S during the pandemic. However, the small sample limits the generalisability of the results to construction sectors in other regions. Originality/value The study investigated factors affecting the delivery of optimum H&S during the COVID-19 to inform interventions to enhance H&S.

scholarly journals Rationale for the choice of the enterprise performance estimation method

2013 ◽  
Vol 2 (2(10)) ◽  
pp. 40-42
Author(s):  
Ірина Ігорівна Смачило ◽  
Тетяна Володарівна Смачило
Keyword(s):  
Estimation Method ◽  
Performance Estimation ◽  
Enterprise Performance

scholarly journals The Importance of Communication Management Improving the Performance of Construction Project Managers in Developing Countries

2021 ◽  
Vol 56 (3) ◽  
pp. 473-484
Author(s):  
Zulkifli Lubis
Keyword(s):  
Developing Countries ◽  
Public Relations ◽  
Construction Projects ◽  
Construction Project ◽  
Project Managers ◽  
Infrastructure Development ◽  
Communication Management ◽  
The Public ◽  
Study Results

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.

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