scholarly journals Factors Affecting Supervision Practice of Public Building Construction Projects in Dire Dawa Administration

2021 ◽  
Author(s):  
Emer Tucay Quezon
Keyword(s):  
Construction Projects ◽  
Time Budget ◽  
Construction Materials ◽  
Weather Conditions ◽  
Building Construction ◽  
Public Building ◽  
Factors Affecting ◽  
Quantitative And Qualitative Research ◽  
Supervision Practice ◽  
Construction Supervision

Proper completion of a public building construction project is dependent on the effectiveness of the construction supervision. However, it has become increasingly difficult to finish construction projects within the specified time, budget, and quality standards due to poor supervision practices. Approaches such as quantitative and qualitative research and descriptive research types were used in this study. Questionnaires survey were issued to 104 respondents, with 11 representing clients, 22 representing consultants, and 71 representing contractors. There were 33 factors identified, which were then divided into seven groups for further analysis. It was discovered that the top-ranked factors that influence construction supervision practice are: supervisors' lack of skills and experience, incompleteness and consistency in the design, lack of appropriate decision making, location of the project, material and equipment costs, a lack of construction materials supply, and effect of weather conditions. The Relative Importance Index was calculated to determine whether or not the parties agreed on the factors and ranked them according to their importance. Most respondents suggested that supervisors should receive proper training, and comprehensive and detailed drawings should be provided on time. In addition, it was discovered that the top three essential group elements affecting supervision practice of the public building project are supervisory, design, and management-related aspects.

scholarly journals Causes of Delay in Public Building Construction Projects: A Case of Addis Abeba Administration, Ethiopia

2019 ◽  
Vol 8 (2) ◽  
pp. 4-9
Author(s):  
Abdurezak Mohammed Kuhil ◽  
Neway Seifu
Keyword(s):  
Construction Projects ◽  
Addis Ababa ◽  
Construction Materials ◽  
Site Investigation ◽  
Building Construction ◽  
Negative Effects ◽  
Price Inflation ◽  
Main Category ◽  
Public Building ◽  
Grade One

The time overrun in construction projects has become one of the most common problems in the industry that cause multitude of negative effects on the projects and its stakeholders. This study focused on assessing the main causes of delay in public building construction projects in Addis Ababa Administration mainly undertaken by grade one contractors. In these projects, 42 delay causing events in the Addis Ababa public building construction projects were identified and categorized in to five main category groups, and the most important and critical causes of public building construction delay causing factors were evaluated and ranked based on the RRI(Ranking and computation of relative importance index)values from the data collected in a questionnaire survey of three groups of respondents- clients, consultant and contractors in the construction industry. The survey findings revealed the top ten factors that cause construction delays in the public building construction projects in Addis Ababa are: (1) Difficulty in project financing (poor financial system); (2) Poor Project management system;(3) Delay in issuance of designs and working drawings; (4) Shortage of availability of imported construction materials and goods on market; (5) Design errors and complexity of designs;(6)Delay in progress payments for completed works; (7) Late start & resource mobilization to site; (8) Financing problems; (9) Inaccurate Site investigation Report;(10) Price Inflation. Furthermore, the ranking of the factors tested the agreement among the respondents and finally agreement test reveal that there appears a positivecorrelation between the groups in noticing and ranking the set of delay causes. The study recommended in general and particularly to all the parties for mitigating factors causing time overrun.

scholarly journals ASSESSMENT OF FACTORS AFFECTING ACCURACY OF COST ESTIMATION IN PUBLIC BUILDING CONSTRUCTION PROJECTS IN WESTERN OROMIA REGION, ETHIOPIA

2020 ◽  
Vol 11 (2) ◽  
pp. 111-124
Author(s):  
Jifara Chimdi ◽  
Sisay Girma ◽  
Alemu Mosisa ◽  
Degefe Mitiku
Keyword(s):  
Cost Estimation ◽  
Construction Projects ◽  
Rank Correlation ◽  
Correlation Coefficients ◽  
Building Construction ◽  
Public Building ◽  
Factors Affecting ◽  
Public Projects ◽  
Spearman’S Rank Correlation ◽  
Importance Index

Construction projects are getting progressively complex and their scales are getting sophisticated. Along these lines, it is getting more problematic to finish the projects inside planned cost limits. In Oromia public building construction projects these problems were raised as a typical challenge. Hence, evaluation of factors affecting the accuracy of cost estimation in public projects was the aim of this study. Both quantitative and qualitative methods were utilized for information assortment. Relative Importance Index (RII) was utilized for information investigation. Totally sixty -two variables were investigated and the best five most significant were selected by this assessment based on the average view of respondents. These significant factors are; Material price/accessibility /source /quality /imports, Experience and ability of the consultant, Variability in the Economy of the country, and financial conditions of client.  Spearman's rank correlation coefficients (rho) investigation was conducted by the assistance of SPSS 20 version for a testing level of connections among respondents on the positioning of the factors affecting the accuracy of cost estimation. Spearman’s rank correlation results were 0.823 among Clients and Consultants, 0.813 among clients and contractors, and 0.802 among Consultants and Contractors. The outcome shows that the rate of the rank correlations was a high positive number, which implies there is a positive connection between them on the ranking of factors disturbing the accurateness of cost estimation in public building construction projects in western Oromia.

scholarly journals Assessment on Materials Quality Control Implementation of Building Construction Projects and Workmanship: A Case Study of Ambo University

2021 ◽  
Author(s):  
Arthur G. Ibanez ◽  
Emer Tucay Quezon ◽  
Woyesa Ararsa
Keyword(s):  
Construction Projects ◽  
Building Materials ◽  
Construction Materials ◽  
Code Of Conduct ◽  
Vital Role ◽  
Building Construction ◽  
Factors Affecting ◽  
Project Construction ◽  
Quota Sampling ◽  
Major Factors

Quality of material issues have been a significant source of concern since the dawn of recorded history. Building materials are essential and should be performed according to standard specifications because they cover around 60% of the project cost. Prior to project construction, specific codes, standards, and specifications should be available. Using all required materials does not guarantee a sound building appearance or function. Even with suitable materials, workmanship, and supervision, unexpected output can affect a building. Quality workmanship is a comprehensive approach to bolstering building durability, serviceability, and safety. The study evaluated Ambo University's building construction materials and quality. Convenience and quota sampling techniques were collected from all contractors and consultants involved in building construction via questionnaires and interviews. A comprehensive literature review identified 15 major factors affecting building construction materials quality and workmanship, and respondents ranked them in the order of importance. Defects in existing buildings and ongoing projects had observed due to non-compliance with construction materials and workmanship based on specifications and standards. The results indicated that Ambo University building has no defect free structure, including the degree and type of defects vary. A 94% of the studied buildings had moisture leakage, plastering defects, paint peeling, and cracks. Hence, the consultants and Ambo University project representatives should adhere with the standard specifications, and must exercise their profession according to the ethical code of conduct. All of these, it will play a vital role in the success of construction projects.

scholarly journals Achieving Sustainability in the Construction Supervision Process

2019 ◽  
Vol 5 (3) ◽  
pp. 47
Author(s):  
Svetlana Mjakuškina ◽  
Maija Kavosa ◽  
Inga Lapiņa
Keyword(s):  
Construction Industry ◽  
Literature Survey ◽  
Point Of View ◽  
Building Construction ◽  
Social Aspects ◽  
Public Building ◽  
Market Surveillance ◽  
Supervision Process ◽  
Construction Supervision ◽  
The Government

In recent years, the construction industry faced major challenges in ensuring a balance between environmental, economic, and social aspects. There are a lot of different studies on different aspects of the construction industry. Most of the available studies look at the construction supervision process mainly from the constructor’s point of view. However, there is little research on the market surveillance and supervision process performed by the government and its role in ensuring sustainability in a particular area. The aim of this study was to identify the main activities within the construction supervision process to achieve the sustainability of construction. The theoretical framework of the concept of sustainability in construction and in the activities of the supervision process was analyzed on the basis of a literature survey. The research revealed a connection between sustainability elements and the construction supervision activities. The results of the survey identified the most important factors that influence, negatively as well as positively, the achievements of sustainability in the supervision process. The research results are significant in order to create a construction supervision process which would not only ensure the compliance with the set requirements but also help achieve sustainability in the particular area. Research Limitations/Implications: Research is focused on the supervision process of public building construction in Latvia.

scholarly journals Assessment of Human Productivity Drivers for Construction Labor through Importance Rating and Risk Mapping

2020 ◽  
Vol 12 (20) ◽  
pp. 8614
Author(s):  
Murat Gunduz ◽  
Abdulrahman Abu-Hijleh
Keyword(s):  
Labor Productivity ◽  
Construction Projects ◽  
Rank Correlation ◽  
Weather Conditions ◽  
Risk Mapping ◽  
Importance Rating ◽  
Factors Affecting ◽  
Importance Index ◽  
The Impact ◽  
Productivity Factors

Labor constitutes a significant portion of the overall cost of a construction project, where labor productivity is often the main driver of the cost. Although studies on labor productivity factors exist, their frequency of occurrence in terms of their ranking remains unexplored. This study differs from other studies in the literature by introducing the frequency component to the productivity factors, a more realistic ranking of the factors by adjusting the importance by frequency (frequency adjusted importance index) and risk mapping of the factors. Moreover, this study is the first to apply risk mapping on labor productivity drivers. The aim of this paper is to identify the project factors affecting the labor productivity in construction projects and to rank these factors considering the perception of the industry on project performance. A literature review of past relevant studies was performed to identify and draft a list of factors affecting labor productivity in construction projects. Thirty-seven labor productivity factors were presented in a questionnaire to investigate the impact and frequency of their occurrence in construction projects. A 9-point scale structured questionnaire was constructed to measure the importance and the frequency of the factors and to evaluate the ranking for different categories. The frequency adjusted importance index (FAII), Spearman’s rank correlation, and risk mapping were used to study and analyze the 105 completed responses. The participants rated the following factors as the five most significant labor productivity-influencing factors: (1) poor labor supervision, (2) delays in payments, (3) poor work environment, (4) lowly skilled labor, and (5) bad weather conditions.

Research of Construction Process Quality Control in Building Engineering

2013 ◽  
Vol 438-439 ◽  
pp. 1637-1640
Author(s):  
Dong Ming Xu ◽  
Kai Wen Yang ◽  
Yi Jun Shi
Keyword(s):  
Quality Control ◽  
Construction Projects ◽  
Construction Project ◽  
Process Quality ◽  
Building Construction ◽  
Construction Process ◽  
Schedule Control ◽  
Control Cost ◽  
Factors Affecting ◽  
Building Engineering

By analyzing the points of construction process quality control in the building construction project and the relationship among quality control, cost control and schedule control, the main factors affecting the construction process quality control in the building construction project are given out, and a practical system is established. This system includes pre-construction quality planning, quality control, drawings reviewing technical tests, building products quality control, responsibility for quality and other aspects. The practical application of this system in some building construction projects proved its effectiveness in the project quality control.

scholarly journals FACTORS AFFECTING THE PRODUCTIVITY OF BUILDING CRAFTSMEN ‐ STUDIES OF UGANDA

2007 ◽  
Vol 13 (3) ◽  
pp. 169-176 ◽  
Author(s):  
Henry Mwanaki Alinaitwe ◽  
Jackson A. Mwakali ◽  
Bengt Hansson
Keyword(s):  
Construction Projects ◽  
Labour Productivity ◽  
Weather Conditions ◽  
Project Managers ◽  
Time Cost ◽  
Factors Affecting ◽  
Construction Methods ◽  
Importance Index ◽  
Building Craftsmen ◽  
Major Factors

Poor productivity of construction workers is one of the causes of cost and time overruns in construction projects. The productivity of labour is particularly important especially in developing countries, where most of the building construction work is still on manual basis. This paper reports on a survey made on project managers of building projects in Uganda, where an increase in productivity is being sought. Respondents were required to rate using their experience how 36 factors affect productivity with respect to time, cost and quality. The survey was carried out by a questionnaire and responses received over a period of 3 months. The ten most significant problems affecting labour productivity were identified as incompetent supervisors; lack of skills from the workers; rework; lack of tools/equipment; poor construction methods; poor communication; inaccurate drawings; stoppages because of work being rejected by consultants; political insecurity; tools/equipment breakdown; and harsh weather conditions. Although lack of materials is ranked highest with regard to average rating on loss of time, it was not ranked among the top ten using the importance index that takes into account time, cost as well as work quality. The policy makers and researchers should focus on the identified major factors in order to improve productivity.

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