Quantity Surveying- Scholarly Publications

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Browsing Quantity Surveying- Scholarly Publications by Author "Akinsiku, O. E."

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    Assessment of Quantity Surveyor' Service Quality
    (Covenant University, 2014-06) Akinsiku, O. E.
    Quality service delivery is an important and effective factor in the success and failure of any organisation. As a fundamental factor, it should be considered very important for the organisation to remain afloat. As a matter of fact, all service organisations must provide high quality service in order to gain the confidence of their clients. This paper assesses the quality of service being rendered by quantity surveyors with respect to construction clients' perception of it. The questionnaire was designed to collect data based on a 22 item variable which assesses service quality on the premise of tangibility, reliability, responsiveness, assurance and empathy. The data collection involves the assessment of quantity surveyors service by clients. The collected data were analyzed using pair t-test analysis using the SPSS software. Research results show that highest perceived gap was in the reliability dimension and the lowest gap was in the empathy dimension.
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    Open Access
    Comparative accuracy of floor area, storey enclosure and cubic methods in preparing preliminary estimate in Nigeria
    (Macmillan Publishers Ltd., 2011) Akinsiku, O. E.; Babatunde, S.O.; Opawole, A.
    The aim of construction cost forecasting is to provide an estimate of a construction contract. Construction clients are interested in knowing their financial commitment before the completion of a detailed design. There are various methods used by estimators to forecast the construction cost of building and civil engineering projects. The accuracy of these techniques is, however, impeded by some external factors that need to be overcome or are provided for in order to get a realistic estimated value. This study examined the three most common techniques used in preparing preliminary estimates in Nigeria, namely, the floor area or superficial method, the cubic method and the storey enclosure method. Total construction costs were extracted from the final accounts of 10 bank projects executed within the last 15 months in Lagos metropolis, Nigeria. From the extracted costs, using a random selection, a project was used as the base on which other techniques were used. The data were analysed using their respective deviation from the final cost and the Pearson correlation coefficient was used to test their degree of relationship with the final cost. The study revealed the cubic method of calculating preliminary estimates as having the highest frequency of accuracy closest to the obtained construction value with respect to the 10 projects sampled, whereas the floor area and storey enclosure methods followed behind. However, using the Pearson product moment correlation coefficient, the floor area or superficial method has the greatest relationship to the construction cost; the cubic method came second, whereas the storey enclosure method has the least relationship with the construction cost.
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    Open Access
    Constraints of Nigeria Indigenous Construction Contractors (NICCS) In a Competitive Business Environment
    (2020) Akinsiku, O. E.; Oyediran, O. S.
    Nigeria Indigenous Construction Contractor (NICC) is facing a lot of constraints among which are the quest for survival and relevance in the Nigeria construction sector. Majority of high net-worth construction projects are awarded and executed by foreigners’ managed firms which constitute less than 5 percent of the total number of construction companies operating in Nigeria. This has put the NCCs into a precarious condition as the nation’s construction sector is completely monopolized by foreigners. However, the NICCs are the architects of their own misfortune as over the years, researchers have observed that the outputs of construction activities by NICCs fall below the expected quality standard required, as such, clients’ preference for foreigners’ managed construction companies. This study sets out to investigate the causes of these constraints and why NICCs are majorly predisposed to poor project performance. The study adopted the review of literatures as well as the use of questionnaire to elicit information from construction practitioners. The study identified 19 factors, ranked in order of importance on why clients prefer foreigners’ managed construction enterprise in Nigeria. Factor analysis was used to group these factors into 5 principal factors namely: poor monitoring, controlling and funding challenges, bankruptcy and cost overruns, technical issues, site organization and layout, and materials and construction methods. The findings of the study will assist in improving the competitiveness of NICCs, by so doing; reduce the cost of construction as the competition nest of performing contractors in Nigeria would be widened.
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    Open Access
    Critical success factors in public-private partnership (PPP) on infrastructure delivery in Nigeria
    (Emerald Group Publishing Limited, 2012) Babatunde, S.O.; Opawole, A.; Akinsiku, O. E.
    Purpose – Federal and State Governments began to explore more subtle alternatives for accessing private sector resources in the delivery and operation of public facilities. The purpose of this paper is to examine the types of infrastructural projects most suitable using public-private partnership (PPP) for executions and identify the critical success factors in PPP on infrastructural projects with a view to strengthening the partnership between the public (government) and private sector. The overall goal is to enhance infrastructural projects delivery in Nigeria. Design/methodology/approach – The primary data consists of survey questionnaires, drawn based on the identified factors on existing literature on critical success factors (CSFs). The structured questionnaires were administered on participants that were involved in the execution of PPP projects, either during the initial stage, construction stage or maintenance and operating stages in Lagos State. Findings – The results of the mean score ranking indicate that transportation, which include roads, rails and airports construction ranked highest followed by provision of electricity and water. Real estate and educational construction projects ranked lowest in terms of suitability of execution using PPPs. However, the result of the one-way analysis of variance (ANOVA) indicates that, there was no significant difference in the suitability of PPP for execution of the types of infrastructural projects delivery. The paper further identified nine CSFs in public-private partnerships as follows: competitive procurement process, thorough and realistic assessment of the cost and benefits, favorable framework, appropriate risk allocation and risk sharing, government involvement by providing a guarantee, political support, stable macroeconomic condition, sound economic policy and availability of suitable financial market. The study, however, showed that well organized and committed public agency; social support; project technical feasibility and multi-benefits objectives are the CFSs that are most important to the private investors. On the other hand, factors such as transparency in the procurement process; shared authority between public and private sector; thorough and realistic assessment of the cost and benefits; commitment and responsibility of public and private sector and strong and good private consortium are the CSFs that are most important to the public clients. Originality/value – The results indicated that there was no significant difference in the suitability of PPP for execution of infrastructural projects delivery. This shows that PPP is suitable for all types of infrastructural projects. What needs to be done is to ensure that all the success factors responsible for successful implementations of PPPs are well structured in a way that its optimum performance can be guaranteed. Also, in identification of the critical factors in PPP it would help to develop a body of PPP knowledge. This knowledge would help in the establishment of relevant laws, regulations and guidelines and in the development of efficient frameworks for best PPP practices.
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    Open Access
    Decision support weighted score system (DSWSS) for selection of construction contractor in Nigeria
    (Obafemi Awolowo University Faculty of Environmental Sciences, 2014-09) Ajayi, O.M.; Ogunsanmi, E.O.; Akinsiku, O. E.
    The aim of this study was to develop a computer aided methodology to determine the weights of the different parameters for contractor selection as there is no standard assessment procedure for evaluating contractor selection criteria (CSC) by decision makers in Nigeria. A survey research is adopted for this study via descriptive research design. The populations are public clients and consultant organisation. Stratified sampling technique method is used because they are of the same homogenous group, that is divided into strata. Questionnaires were distributed to clients' organization and construction professionals in consulting firms. The lists of practicing construction professionals were obtained from their professional bodies. The sample size was calculated using Cochran formula while Statistical Package for Social Science (SPSS) 17th version was used to analyse the biographical information of the respondents. The computer aided methodology used is a desktop application known as C Sharp (C#). The result gives the weights in percentage that could be assigned to contractor selection criteria (CSC) at both prequalification and tender and tender evaluation criteria. In conclusion, the weighted percentage can be used by decision makers during selection of contractor for construction projects to ensure objectivity judgement.
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    Open Access
    The impacts of Building Information Modelling (BIM) on quantity surveying practice
    (University of Lagos Faculty of Environmental Sciences, 2016-06) Akinsiku, O. E.
    Building Information Modelling (BIM) is gradually gaining grounds in the global construction industry. The aim of this research is to identify the effects of the adoption of BIM on quantity surveying practice. Questionnaire survey was adopted for eliciting information from respondents who were mainly quantity surveyors. The data obtained were analyzed using Mean Item Score. The findings show that BIM has the capabilities to enhance quantity surveyors’ performances as well as poses a threat to the relevance of the profession in the face of the various capabilities of BIM. The study also found that there are various survival strategies that quantity surveyors can adopt in the face of the adverse impacts of BIM adoption in order to remain relevant in the construction industry. The research will serve as an eye opener on the nobility of BIM to quantity surveyors as well as an early warning signs of what can be of the profession should BIM be fully implemented and functional in the construction industry in Nigeria.
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    Implementation of total quality management of construction companies in Lagos state, Nigeria
    (University of Ilorin Faculty of Environmental Sciences, 2018) Ajayi, O.M.; Akinsiku, O. E.; Salami, T.O.
    Total Quality Management (TQM) is a continuous method of sustaining improvement and satisfying the clients’ demands. The essence is to increase competitive, innovation, profits and also to reduce rework. Construction companies had been reluctuant in the implementation of TQM. Thus, the purpose of this study is to assess the challenges and constraints in the implementation of Total Quality Management (TQM) of construction companies with a view to ensure conformity to client specification and satisfaction. Cross sectional research design was used for this study and the population entails construction professionals in indigenous and expatriate construction companies in Nigeria. Random sampling procedure was used to select the respondents. Statistical Package for Social Science (SPSS) 17th version was used to analyse using descriptive statistic and the relative importance index(RII) of the level of importance of the factors were calculated. Findings showed that management commitment factors, role of quality department, training and education, employee involvement and client’s satisfaction orientation were constraints affecting the implementation of TQM. The difficulties faced in implementation of TQM were challenges of lack of available quality system documentation, lack of understanding in the process requirement, high cost to implement TQM, lack of TQM exposure and lack of planning. In conclusion, Nigeria construction companies practice TQM at the management level with no adequate quality control and assurance manual. It was therefore recommended that Nigeria construction companies should developed a framework for the purpose of quality standard and for them to compete with their counterpart globally.
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    An Investigation of Barriers to Females’ Involvement in the Nigeria Construction Industry
    (University of Benin Faculty of Environmental Sciences, 2018-10) Akinsiku, O. E.; Ajala, N. O.
    The continuous domination of the Nigeria construction industry by men remains an issue of concern to construction stakeholders as females in the Nigerian construction industry continue to be largely underrepresented. The objective of this study was to investigate the barriers to females' involvement in the Nigerian construction industry with a view to suggesting strategies that will assist to bridge this barrier. The survey reviewed literature on the level of female participation, the perceptions about women, the opportunities available to females and strategies of increasing the number of female participation in the industry. The instrument for data collection was obtained by the use of a survey questionnaire as well as the reviews of extant literature. The sampling method employed is stratified random sampling. The questionnaires were administered to built environment practitioners in consulting and contracting establishment in Lagos metropolis, Nigeria. The findings revealed that the barriers which influence female under-representation in the Nigerian construction industry include; the male-dominated structure of the construction industry, family commitments such as marriage and childbirth, masculine nature of the job, long working hours. The strategies recommended to bridge this barrier include the formulation of employment policies which prevent sexism, educating young women about the industry, providing better working conditions and flexible working policies for women, provision of incentives in order to attract more women into the Nigerian construction industry.
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    Stakeholders’ Perception of the Causes and Effects of Construction Delays on Project Delivery
    (Korea Institute of Construction Engineering and Management, 2012-11) Akinsiku, O. E.; Akinsulire, A.
    The growing rate of delays is adversely affecting the timely delivery of construction projects. This study therefore assesses construction stakeholders’ perception of the causes of delays and its effects on project delivery in a bid to proffer solution in minimizing the occurrences of delays. Questionnaire was used to elicit responses from construction stakeholders; a total of thirty three causes of delays, seventeen resultant effects of delays and fifteen methods of minimizing construction delays were identified for the study based on literature reviews. The results suggest that client’s cash flow related problems are the main causes of delays while time and cost overruns are the major identifiable effects of delays in construction projects. However, adequate project planning and budgeting were suggested as possible ways of minimizing the occurrences of delays.
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    Sustainable Project Delivery of Public Procurement Projects: Contractor Selection Procedure
    (Springer Nature Switzerland, 2020) Akanmu, J.O.; Ajayi, O.M.; Akinsiku, O. E.
    Selecting a competent contractor is a yardstick for sustainable project delivery. It ensures the project is completed within time, cost and quality standard. This study assesses the procedure of Nigeria’s public procurement Act of 2007 and identifies the frequency of use of prequalification criteria. The research is both exploratory and quantitative in nature. The population for the quantitative study was public clients and consulting organization. Stratified random sampling technique was used. The sample size was calculated using Cochran formula. A total of 300 questionnaires were distributed using Cochran formula to generate the sample size. From the sample size calculated, 196 were from consulting firms and 31 from public clients’ organization. Statistical Package for Social Science (SPSS) 21st version was used to analyse the data using frequency, percentage, relative importance index (RII) and t-test. There was an agreement between public clients’ and consultant organisation on the frequency of use of contractors’ prequalification criteria. In conclusion, it is important to consider the method of procurement, size of the project and complexity of the project to ensure the optimum balance of experience, positive references, working chemistry and teamwork.