Review of Causes of Delay in Construction Projects

2020 ◽  
Vol 17 (2) ◽  
pp. 715-728
Author(s):  
Abdulhamid Al-Gheth ◽  
Md. Sayuti Bin Ishak
Keyword(s):  
Construction Industry ◽  
Construction Projects ◽  
Research Study ◽  
Project Delivery ◽  
International Studies ◽  
Exploratory Research ◽  
Factors Affecting ◽  
Project Completion ◽  
Financial Factors ◽  
Main Factors

Globally, construction delay is the main factors which have a high impact on countries’ economy and development. The present paper reports an exploratory research study of previous international research into delay factors affecting project delivery. The objective of this study was to deliver an overview of construction delays in order to classify the main groups of delays and compare the UAE construction industry with international studies. In total, 14 groups were found to contribute to causing construction delays. Studies of the global and UAE construction industry are in agreement that the leading group of factors that affect project completion are management factors; then, the second group comprises financial factors.

scholarly journals Application of Quality Assessment System in Sudanese Construction Industry

2021 ◽  
Vol 9 (3) ◽  
pp. 52-57
Author(s):  
Yasir Mohamed Hassan Amin ◽  
Mohamed Abdulla Nugdalla Ahmedi
Keyword(s):  
Literature Review ◽  
Quality Assessment ◽  
Construction Industry ◽  
Construction Projects ◽  
Assessment System ◽  
Construction Process ◽  
Standard Score ◽  
Factors Affecting ◽  
Assessment Systems ◽  
Main Factors

Quality management is considered one of the most important obstacles facing the construction industry in Sudan. The application of a quality assessment system contributes to the development of quality in projects as it is possible to measure the quality in projects. This paper aims to introduce one of the quality assessment systems, which is the system followed and applied in the Singapore (CONQUAS). This system assesses quality based on structural, architectural, mechanical and electrical work. The paper also aims to study the factors affecting the application of the quality assessment system in Sudan. The study is carried out in the region of Khartoum. The study is focusing on the construction projects. The study is carried out by questionnaires and other literature review. The respondents are consultants and contractors. The data has been distributed and analyzed by using the Average Index. From the study it was found that CONQUAS standard is assessed the building based on workmanship standards by the assessors from the BCA on site using standard score sheets. The assessment is done throughout the construction process for structural, mechanical and electrical works, and from questionnaire results the main factors affect construction industry in Sudan is lack of standardization in Sudan. The author recommended that more study shall be conducted to identify factors affecting quality in Sudanese construction industry and how to improve the quality.  

Inhibiting Factors of Cost Performance in UAE Construction Projects

2020 ◽  
Vol 11 (2) ◽  
Author(s):  
Ahmed Salem Ahmed Marey Alhammadi ◽  
◽  
Aftab Hameed Memon ◽  
Keyword(s):  
Construction Industry ◽  
Construction Projects ◽  
Past Research ◽  
Cost Overrun ◽  
Index Method ◽  
Cost Performance ◽  
Factors Affecting ◽  
Inhibiting Factors ◽  
Critical Problems ◽  
Structured Questionnaire

UAE construction industry frequently faces poor cost performance which commonly known as cost overrun problem. This problem is resulted from several factors and it is important to identify these cost overrun factors in order to avoid and minimize it. Hence, this paper focused on determined the relevancy of factors affecting cost performance in construction projects of UAE. Through a review of past research works conducted globally, 27 factors of cost overrun were listed and used for developing a structured questionnaire. A survey was conducted with 33 practitioners from client, consultant and contractors organizations involved in handling construction projects in UAE. The respondents were requested to state their perception regarding the relevancy of each of the factors that was perceived in context with cost overrun issue using 5-points Likert scale. The responses were analysed using average index method and the results found that all the 27 factors are relevant with construction industry of UAE in causing cost overrun. These factors can be used for further investigation to uncover critical problems of cost overrun.

scholarly journals Value Management in Practice: An Interview Survey

2012 ◽  
Vol 4 (2) ◽  
pp. 11-18 ◽  
Author(s):  
Therese Daddow ◽  
Martin Skitmore
Keyword(s):  
Construction Industry ◽  
Construction Projects ◽  
Project Delivery ◽  
Value Management ◽  
Practical Implementation ◽  
Construction Work ◽  
Value For Money ◽  
Extra Time ◽  
Prescriptive Literature ◽  
Interview Survey

Despite its obvious theoretical benefits, there has been some reservations regarding the practical implementation of Value Management (VM) for construction projects. In particular, these concerns the extra time and costs involved in conducting VM in relation to the actual benefits gained as a consequence of its use. This paper provides the result of an interview survey of the experiences and observations of 17 professionals working in the property and construction industry to establish the extent to which this is an issue. The main conclusion is that the process is working well, with VM being popular among those with experience in its use - which has been extended into the area of consultant selection. However, in contrast with the prescriptive literature, much of the participants' experiences appear to be more concerned with VM's contribution to the identification and management of the risks involved in project delivery than the straight value-for-money aspects. This may be due to the higher levels of uncertainty involved in construction work than in VM's original use in construction.

Exploring influential factors leading to the poor performance of public construction project in Ethiopia using structural equation modelling

2020 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Benti Gadisa ◽  
Hong Zhou
Keyword(s):  
Construction Industry ◽  
Construction Projects ◽  
Construction Project ◽  
Poor Performance ◽  
Project Performance ◽  
Influential Factors ◽  
Project Design ◽  
Content Type ◽  
Factors Affecting ◽  
Public Construction

PurposeIt is well recognized that the construction industry is characterised by inefficient and ineffective service delivery due to various causative factors. Thus this study aims to examine the influential factors affecting public construction project performance in Ethiopia to improve the industry's service delivery.Design/methodology/approachFrom the extensive literature reviewed, 58 potential factors affecting construction project performance have been compiled. Based on the evidence accumulated, the conceptual model of this paper has been developed. By using survey questionnaires, valuable data were collected from the construction industry professionals in Ethiopia; analysed and interpreted with the use of both SPSS and AMOS software.FindingsIt is concluded that failure factors related to the “performance” of the contractor, the “capability” of the owner, the “project design-procurement process,” and project contract management can significantly contribute to the poor performance of public construction projects in Ethiopia. Ten key factors include inadequate contractor capacity, weak project site management and supervision, weak project management skills and capabilities of the owner, additional work orders, delayed payment, lack of comprehensive project plans between parties and incomplete project design, rising material prices, ineffective project schedules, and cost management, rising market prices and devaluation of the currency.Research limitations/implicationsThe scope of this study confined to public projects in Ethiopia. It suggests that further research needs to consider public and private construction from a comprehensive perspective in the developing countries.Practical implicationsIt provides practitioners with information and guidance on the factors that affect the performance of construction projects.Originality/valueIt provides inclusive evidence related to many factors that affect the performance of public construction projects.

Factors affecting tender price in the Ghanaian construction industry

2017 ◽  
Vol 22 (3) ◽  
pp. 252-268 ◽  
Author(s):  
Ernest Kissi ◽  
Theophilus Adjei-Kumi ◽  
Edward Badu ◽  
Emmanuel Bannor Boateng
Keyword(s):  
Construction Industry ◽  
Structural Equation ◽  
Construction Projects ◽  
Negative Influence ◽  
Positive Influence ◽  
The Body ◽  
Content Type ◽  
Factors Affecting ◽  
Practical Implications ◽  
Structured Questionnaire

Purpose Tender price remains an imperative parameter for clients in deciding whether to invest in a construction project, and it serves as a basis for tender price index (TPI) manipulations. This paper aims to examine the factors affecting tender price in the construction industry. Design/methodology/approach Based on the literature review, nine independent constructs and one dependent construct relating to tender pricing were identified. A structured questionnaire survey was conducted among quantity surveyors in Ghana. Partial least squares structural equation modelling (PLS-SEM) examined the influences of various constructs on tender price development (TPD) and the relationships among TPD and TPI. Findings Results showed that cultural attributes, client attributes, contractor attributes; contract procedures and procurement methods; consultant and design team; external factors and market conditions; project attributes; sustainable and technological attributes; and TPI have a positive influence on tender price, whereas fraudulent attributes exert a negative influence. Practical implications The findings offer construction professionals broader understanding of factors that affect tender pricing. The results may be used in professional decision-making in the pricing of construction projects, as they offer clearer causal relations between how each construct will influence pricing. Originality/value This study adds to the body of construction pricing knowledge by establishing the relationships and degree of influences of various factors on tender price. These findings provide a valuable reference for practitioners.

CONTRACTS EVALUATION THROUGH CLASSIFIED REWORK ROOT CAUSES IN THE CONSTRUCTION STAGE OF PROJECTS

2020 ◽  
Vol 7 (2) ◽  
Author(s):  
Ramin Asadi ◽  
Suzanne Wilkinson ◽  
James Olabode Bamidele Rotimi
Keyword(s):  
Construction Industry ◽  
Construction Projects ◽  
Project Performance ◽  
Mitigation Measures ◽  
Rational Approach ◽  
Review Of Literature ◽  
Construction Stage ◽  
Financial Factors ◽  
Resource Material ◽  
The Relationship

Rework occurs across the life cycle of projects and has significant impacts on construction project performance. A rational approach to managing rework is by identifying the main sources of rework; then mitigation measures can be implemented to enhance performance on projects. Rework has been widely studied within the construction industry, but the link between rework and contract conditions remain unexplored. This study identifies and classifies the root causes of rework at the construction stage of projects. It then examines the relationship between the conditions of contracts with the identified root causes. A comprehensive list of rework root causes was determined through the review of literature, which was categorized into five classified factors. The classified factors include process, human resource, material/equipment, technical, and other related environmental and financial factors. The next step comprises a questionnaire survey designed to determine relationships between rework and contracts. The result of the study is presented descriptively for ease of understanding. The results show that rework could be managed more efficiently through contracting processes, which ultimately benefits construction projects’ performance.

AN ENTROPY-BASED STUDY ON THE EFFECTIVENESS OF PREFABRICATION IN ACHIEVING SUSTAINABLE CONSTRUCTION

2016 ◽  
Vol 3 (2) ◽  
Author(s):  
Peter S. P. Wong ◽  
Luke Edmonson ◽  
Michael Phillip Kanellopoulos
Keyword(s):  
Construction Industry ◽  
Energy Efficient ◽  
Construction Projects ◽  
Carbon Materials ◽  
Sustainable Construction ◽  
Project Delivery ◽  
Design Stage ◽  
Construction Process ◽  
Industry Survey ◽  
Ranking Analysis

Prefabrication has been widely adopted in the construction projects in recent years. It has also been advocated as a greener and more sustainable approach of project delivery. However, with a wealth of evidence supporting other reasons as the drivers of using prefabrication, it is questionable whether the real goal of prefabrication is to achieve sustainable construction. This study aims to investigate the roles of prefabrication in fostering sustainable construction. The effectiveness of prefabrication on fostering sustainable construction was evaluated on the five aspects enlisted by the UK’s Green Construction Board: Waste, Water, Carbon, Materials, and Biodiversity. An industry survey was conducted in Melbourne, Australia for data collection. 200 questionnaires were sent via email or post to a variety of fields within the construction industry. Entropy ranking analysis was adopted to analyze the effectiveness of using prefabrication in construction. The results suggest that prefabrication is effective in reducing construction waste and sourcing energy efficient materials. However, the utilization of prefabrication was found unsuccessful in reducing carbon emissions during the construction process. It is suggested that proactive actions should be taken at the design stage to unleash the potential of prefabrication in construction.

scholarly journals Safety Leadership Defined within the Australian Construction Industry

2015 ◽  
Vol 15 (4) ◽  
pp. 1-15 ◽  
Author(s):  
Luke Daniel
Keyword(s):  
Construction Industry ◽  
Construction Projects ◽  
Legal Framework ◽  
Substantial Contribution ◽  
Exploratory Research ◽  
Leadership Positions ◽  
Safety Leadership ◽  
Knowledge Based ◽  
Universal Definition ◽  
Definition Of

This research explores the tenets of safety leadership within the Australian construction environment. The scope of this research aims to establish a universal definition of safety leadership and how it differs from other leadership disciplines. The literature review into this topic was governed by the parent disciplines of Safety and Leadership.  Gaps were identified in the literature that indicated safety leadership is not a well-defined concept and much of the work into safety leadership has been borrowed from other schools of leadership. An exploratory research methodology was utilised which rooted the research into the post-positivist methodology. There were twenty interviews conducted for this research, with participants coming from various leadership positions across multiple construction projects around Australia. Findings detailed a saturation of data that allowed for an empirical definition towards safety leadership to be established. As a person’s scope of responsibility increases, their view of safety leadership becomes synonymous with leadership; although differences do exist. These differences were attributed to the importance of demonstrating safety and working within the legal framework of Australian construction projects. It is proposed that this research offers a substantial contribution to knowledge, based upon a well-defined definition into safety leadership. 

scholarly journals An Investigation on Factors affecting Construction Productivity

2021 ◽  
Vol 9 (VI) ◽  
pp. 2116-2118
Author(s):  
Ajit Ambekar
Keyword(s):  
Construction Industry ◽  
Construction Projects ◽  
Significant Part ◽  
Work Schedule ◽  
Internal Factors ◽  
Factors Affecting ◽  
Total Cost ◽  
Construction Productivity ◽  
Constant Change ◽  
Cost Of Construction

Productivity is important in construction. Construction productivity is a significant part of production for construction projects. In the construction industry, many external and internal factors are never constant and difficult to predict. This factor leads to a constant change in productivity. It is necessary to make sure that the reduction of construction productivity does not affect the plan and work schedule and does not cause delays. The consequences of these delays can lead to serious loss of money. In addition, significant costs can be saved if productivity is improved, as the same work can be done with less labor, thereby reducing the total cost of construction.

scholarly journals Typical Moroccan goat Lactic Acid Bacteria and their assay as starters

2021 ◽  
Author(s):  
Linda Zaaraoui ◽  
Abdellah Bouksaim ◽  
Maha Elhamdani ◽  
Aouatif Benali ◽  
Mohammed Oukassou ◽  
...  
Keyword(s):  
Lactic Acid ◽  
Lactic Acid Bacteria ◽  
Research Study ◽  
Goat Milk ◽  
Lactobacillus Brevis ◽  
Raw Milk ◽  
Isolation And Identification ◽  
Lactobacillus Pentosus ◽  
Factors Affecting ◽  
Main Factors

The knowledge of lactic acid bacteria of raw milk and the main factors affecting their variability are particularly important issues for the control of cheese processing and the bioconservation of farm raw milk food products. The present research study concerned the isolation and identification of twenty strains of the Lactobacillus genus from goat milk originating from the Oulmes region, using the API 50 CH system. All isolates found represented five species: Lactobacillus plantarum (43.75 %), Lactobacillus brevis (37.75 %), Lactobacillus pentosus (6.25 %), Lactobacillus salivarus (6.25 %), and Lactobacillus acidophilus (6.25 %). According to biochemical activities, the majority of the strains displayed weak acidification and autolysis activities in milk. In contrast, they showed high extracellular proteolytic activity. All isolates produced exopolysaccharides and most of them could metabolize citrate. The absence of hemolytic activity may suggest the use of these isolates as adjunct starters in the food fermentation process.

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