Quantity Surveying- Conference Paper

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Browsing Quantity Surveying- Conference Paper by Author "Akinsiku, O. E."

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    Open Access
    Causes and effects of rework in building projects in Lagos state, Nigeria
    (INTERNATIONAL COUNCIL FOR RESEARCH AND INNOVATION IN BUILDING AND CONSTRUCTION, 2014-01) Ajayi, O. E.; Akinsiku, O. E.; Oyeyipo, O.
    Rework occurs as a result of design, construction changes and also as variation which is addition, omission and modification of design. Rework cost is on the increase as a result of these changes and it has indirectly affected contract sum, period of completion and quality of the project. Hence this study intends to examine the causes and effects of rework in building projects. Descriptive research design was used for this study and the population consists of construction professionals from consulting and contracting organization. Simple random sampling technique method was used. A structured questionnaire was used as the principal instrument for collecting data from construction professionals in the industry. A total of 98 questionnaires were distributed and 52 were returned given an average response rate of 52%. Statistical package for social sciences (SPSS) 17th version was used for analysis via descriptive and inferential statistic. The findings of the study indicates that changes, defect and quality deviation are the most significant sources of rework on construction projects. Poor communication with design exerts the greatest influence on the rework occurrence on construction sites. The paper also showed that there is significant relationship between rework cost and initial contract sum, initial and final contract period, with exception of final contract sum. In conclusion poor communication with design consultant, use of poor quality materials and poor workmanship are the main causes of reworks in building projects, hence this will affect the client and the project performance in terms of time, cost and quality standard. The paper recommends that early identification of the causes and sources of reworks by consultants and contractors on building projects will reduce the effect of reworks cost on the contract sum, completion time and changes during the design and the construction changes either from the part of the client or the consultant.
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    Open Access
    Contributions of Construction Project Team to Cost Overruns: The Contractors’ Perspective
    (American Society of Civil Engineers (ASCE), 2014-05) Akinsiku, O. E.; Akintola, A; Ameh, O.; Ige, A.
    A project is adjudged successful if it is completed to time, within the budgeted cost and meets client’s expectation. However, there is the global issue of construction cost and time overruns, which has contributed to poor project performance. Contractors have always been seen as the culprit in this regard, whereas, the contractor is not solely involved in construction projects, there are other project team members who determine the path of the project success. This study assesses the causes of cost overruns, viewing this from the contractor’s assessment of the contribution of its project team members. The study was conducted using questionnaire surveys in which 100 questionnaires were distributed to contractors using purposive sampling; data were analyzed by the use of descriptive statistics. The results show that lack of adequate pre-contract planning and project team coordination are the most significant factor among construction professionals leading to cost overruns. The study made recommendations which are of good benefit to the client, project team members and contractors.
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    Open Access
    Correlates of clients’ payment pattern and construction project performance
    (School of Construction Economics and Management University of the Witwatersrand, Johannesburg, South Africa., 2014-02) Akinsiku, O. E.; Olubunmi, A.J.
    Construction projects all over the world are infamous with the occurrence of time overruns and non-performance. The non-performance in this sector of the economy has been a source of concern to stakeholders in the industry. Studies have identified several factors responsible for this. The effects of client's payment pattern on construction project delivery and performance was examined in this study with a view to identifying the various payment patterns utilised in a construction project, discover the major effects imposed on the project by these payment patterns, and the most suitable payment pattern for effective project delivery. To achieve these objectives, a survey was undertaken to obtained data from 120 respondents who practice as project consultants, contractors, project management organisations and financiers. The respondents were selected from construction practitioners in Lagos State, Nigeria, being a core area of construction activities. Six payment patterns were used during the course of the research; cost-reimbursement, incentives, open-book pricing approach, advance payments, milestone payments, and direct payments. Advance payment was found to be the most acknowledged payment while claims and extension of time was established to be the major effects of client's payment patterns on construction project delivery. The study also presents a relationship between client's payment pattern and project performance. Key implication of the study to construction practitioners is that prompt payment by clients to contractors will make the construction industry less litigious and prevents contractors from factoring risks of delayed payment into bids.
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    Open Access
    Effects of delayed payment of contractors on construction project delivery in Nigeria
    (The Construction, Building and Real Estate Research Conference of the Royal Institution of Chartered Surveyors, 2016-09-20) Akinsiku, O. E.; Ajayi, O.M.
    Delay in paying construction contractors has impacted negatively on the effectiveness of the contractor and as such affect project delivery schedule. Failure to pay contractors for work executed might lead to the contracting firm being insolvent. This research is a form of quantitative research and it a cross -sectional research survey which is a combination of descriptive and explanatory research design. The population of the study comprises of clients, consultant and contractors. A total of 65 questionnaires were distributed and 47 were returned and used for the analysis. It gives a response rate of 72%. Random sampling technique method was used, thus the respondents has equal chances of being selected. Statistical package for social sciences (SPSS 20th version) was used to analyse the data via descriptive and inferential statistic. The finding shows that the causes of delayed payment were unrealistic cash flow, error in claims, poor financial problems and disagreement on valuation of work. The impact of delayed payment is delay in project progress which affects the schedule of work and leads to cost overrun and extension of time. In conclusion clients should seek co- investors for support on financial commitment. It was recommended that the stakeholders should work as a team in the execution of project to avoid bottlenecks usually encountered in agreeing contractors’ payment.
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    Open Access
    Effects of project management on abandonment of building projects in Lagos State, Nigeria
    (University of Lagos Press, 2014-10) Dosumu, O.S.; Akinsiku, O. E.
    The study was conducted to investigate the roles of project management on building projects in Lagos, Nigeria. The objectives of the study are to determine the project management factors responsible for project abandonment, effects of poor project management on construction projects and the ways of reducing project abandonments in Lagos state. The study made use of 66 questionnaires out of the 80 that were administered on project managers within Lagos metropolis. The project managers of selected public and private abandoned projects were used for the study and the results of the study were analyzed with SPSS software using percentages and mean scores. The results of the study show that 15 project management factors lead to project abandonments to a high extent while another 15 lead to project abandonments to an average extent. The effects of poor project management on construction project abandonments and stakeholders include conflicts, loss of economic value and reduced standard of living. Project abandonment could be reduced by adequate planning, use of competent professionals and standard project management procedure. The conclusion of the study is that poor project management is key to construction project abandonments and to prevent project abandonment, the study recommends that project managers must engage in adequate planning, cost control and resource management.
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    Open Access
    Utilization of public private partnership (PPP) for social infrastructure provision in Nigeria
    (University of Lagos Press, 2015-11) Akinsiku, O. E.; Ajayi, O.M.
    Public Private Partnership (PPP) has been widely used to deliver public infrastructure and services in most developed countries like UK, Australia and Canada. However in Nigeria, the implementations of PPP for social infrastructure have not been fully adopted despite the benefit of the procurement system in terms of the usage of private sector finances to provide public infrastructure. This study thus assesses the utilization of PPP for social infrastructure in Nigeria. Cross-sectional research design is used for this study and the population comprises of professionals involved in the execution of PPP projects, government agencies and parastatals, public and private institutions, and contracting organisation. Convenience sampling technique method is used for this study of which 68 questionnaires were distributed and 49 was returned and used for the analysis, given an average response rate of 72%. The study shows that the level of utilisation of PPP procurement system is very low as most respondents have not been involved in PPP procurement system in Nigeria, this is attributed to the fact that this procurement system is yet to be fully embraced and adopted as a means of providing critical infrastructural need although professionals are quite aware of the procurement system.