Ranking cost overrun factors in the mega hospital construction projects using Delphi-SWARA method: an Iranian case study

Author(s):  
Amirhossein Balali ◽  
Robert C. Moehler ◽  
Alireza Valipour
2015 ◽  
Vol 749 ◽  
pp. 410-414
Author(s):  
Hayroman Ahmad ◽  
Abdul Rashid Abdul Aziz ◽  
Mastura Jaafar

Over the past few decades, doubts among construction researchers arise about how hospital project success is measured. However, only some general consensus of that matter was agreed upon. Therefore, the aim of this study is to identify the holistic success criteria (SC) of public hospital construction projects. This article describes the criteria, which then conceptually classified the SC into five, which are meeting client requirements; meeting for management of construction goals; meeting for production of construction goals; benefit to the project teams (D&B contractors) developments; and benefiting the community. Every SC describes a set of problem statements as well as dimensions which were based on the following issues: unsatisfactory product quality; prolong of completion period; cost overrun; unsafe site condition; clients’ dissatisfaction; and non-benefit to the community. To realise the objective, questionnaire survey was distributed to the client (Ministry of Health, Malaysia and client’s project manager) and D&B contractors throughout Malaysia. The raw data were analysed using factor analysis (FA) method reduced the variables from 93 items to only 16. Principal components analysis (PCA) procedure considered only the factor loading with a value of 0.500 and above. Each component underwent a process of reliability analysis (RA) with the overall value of Cronbach’s alpha of more than 0.700. Result was found that a set of new measure consisting 16 variables called SC measures were determined. Generally, it covered efficiency of the process and effectiveness of the product. The major limitation of the study was that the key players of the project always changed and most of projects were 95% completed. However, it is important to understand that most of the construction projects are project-basis with temporary organisation. Therefore, extra effort should be emphasised to enhance the quality of the data collected and more research should be done to overcome the issues which still grow concurrent with the development.


2016 ◽  
Vol 23 (1) ◽  
pp. 125-136 ◽  
Author(s):  
Roya DERAKHSHANALAVIJEH ◽  
Jose Manuel Cardoso TEIXEIRA

Cost overrun in construction projects is a common issue affecting project performance, and Gas-Oil con­struction projects in Iran are no exception. This paper presents the results of a questionnaire conducted to identify and evaluate the relative importance of the significant factors contributing to the Gas-Oil construction industry of Iran as a case study for developing countries. The survey respondents included project owners, contractors and consultants in­volved in Iranian Gas-Oil construction projects. The results of the survey revealed that the main causes of cost overrun in this industry include inaccurate cost estimations, improper planning, frequent design changes, inadequate labour/skill availability, inflation of costs of machinery, labour, raw material and transportation prices. The first three factors are the project consultants’ responsibility and the appointment of qualified consultants and personnel training are strongly recommended to alleviate cost overrun. The paper also reviews and compares findings of a set of similar researches in a number of developing countries.


Author(s):  
Chukwuemeka Patrick Ogbu ◽  
Raphael Ehigiator-Irughe

Engineering, procurement and Construction (EPC) projects in the oil and gas sector of Nigeria are under-researched. This leaves investors with little or no guide on the cost-overrun risks of oil and gas depot projects. Using the qualitative case study research technique, this study investigated cost overrun in the civil works of a petroleum products depot project in Lagos, Nigeria. The objectives were to ascertain the reasons for cost overrun and the areas of substantial cost overrun in the project. It was found that except for the cost of construction of “gantry” which was under-measured as a result of use of a wrong method of costing, the rest of the major facilities experienced cost overrun with a cumulative difference of 106%. It was also discovered that the cost overruns mainly originated from design and construction activities. The study recommends the timely engagement of consultants to review the conceptual designs of contractors and monitor the activities of EPC contractors for oil and gas depot projects on behalf of clients. Such consultants should not, however, have powers to control the contractors. As much as possible, parties to EPC contracts should use standard conditions of contract that will better reflect their intentions rather than contrive bespoke conditions.


2020 ◽  
Vol 38 (7A) ◽  
pp. 1069-1076
Author(s):  
Layth T. Ali ◽  
Raid S. Abid Ali ◽  
Zeyad S. M. Khaled

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.


Author(s):  
Ahmed Salem Ahmed Marey Alhammadi ◽  
◽  
Aftab Hameed Memon ◽  

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.


Author(s):  
Mostafa Namian ◽  
Mohammad Khalid ◽  
George Wang ◽  
Yelda Turkan

Unmanned aerial vehicles (UAVs) have gained their prevalent recognition in construction because of their exceptional advantages. Despite the increasing use of UAVs in the industry and their remarkable benefits, there are serious potential safety risks associated that have been overlooked. Construction is one of the most hazardous industries in the United States. In addition to the ordinary hazards normally present in dynamic construction workplaces, UAVs can expose workers to a wider range of never-before-seen safety risks that must be recognized and controlled. The industry is not equipped with safety measures to prevent potential accidents, because of scarce research on drone-associated hazards and risks. The aim of this research was to (1) identify the UAV-associated hazards in construction that may expose personnel and property to potential harms, and (2) study the relative impact of each hazard and the associated safety risks. In Phase I, the researchers conducted an extensive literature review and consulted with a construction UAV expert. In Phase II, the researchers obtained data from 54 construction experts validating and evaluating the identified hazards and risks. The results revealed that adopting UAVs can expose construction projects to a variety of hazards that the industry is not familiar with. “Collision with properties,”“collision with humans,” and “distraction” were identified as the top three safety risks. Moreover, the study introduces effective strategies, such as having qualified crew members, proper drone model selection, and drone maintenance, to mitigate the safety risks. Finally, a post-hoc case study was investigated and presented in this article.


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