Browsing by Author "Oladapo, Babatunde I."

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    Barriers to Building Information Modelling Adoption in Nigeria.
    (Department of Civil Engineering, University of Ilorin, Ilorin, Nigeria., 2017) Amuda-Yusuf, Ganiyu; Adebiyi, Ranti T.; Olowa, Theophilus; Oladapo, Babatunde I.
    Building Information Modeling (BIM) adoption is still evolving in Nigeria and there are no many examples of its usage for project execution by industry practitioners. There is a dearth of studies on how barriers to BIM adoption can be overcome. Following the identification of barriers to BIM adoption from literature, an online survey approach was used to investigate the perception of Nigerian construction industry professionals on the significant barriers to BIM adoption based on a five point Likert scale from 1 “not at all a barrier” to 5 “extreme barriers”. Class means difference among professional group was used to identify barriers to BIM adoption and a discriminant analysis was used to established disagreement among the respondents. The result shows that, the various groups have equal mean discriminant function score on 16 barrier factors to BIM adoption, indicating agreement in the opinion of the groups on these factors. However, 5 items have the most significant predictive power in differentiating the professional groups from the standpoint of perceived barriers to BIM adoption. Implying that there is difference of opinion between the group on whether the 5 factors constitute barriers to BIM adoption or not. The factors in order of magnitude are: clients low level of awareness, lack of funding, poor power supply, legal uncertainty and lack of transparency. The barrier factors identified in this study will assist industry stakeholders in formulating appropriate strategies to overcome them in order to ensure successful BIM implementation. Findings from this study indicates the need for construction industry stakeholders to encourage practitioners to adopt BIM at various level for project execution.
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    Evaluation of Risk Factors Impacting Cost and Time Performance of Mechanical and Electrical Services Installations in North Central Nigeria.
    (Faculty of Environmental Design and Management, Obafemi Awolowo University, Ile-Ife., 2018) Amuda-Yusuf, Ganiyu; Adebiyi, Ranti T.; Olowa, Theophilus; Oladapo, Babatunde I.; Olorunoje, Lukman
    Mechanical and Electrical (M:&E) services project are complex in nature and a number of risk arises at the design and installation stages resulting into poor cost and time performance. This paper identified and ranked the risk factors affecting cost and time performance of M&E services projects. Thirty risk factors identified from preliminary investigations were adopted as basis for a questionnaire survey to architects, engineers, quantity surveyors and project managers in North Central Nigeria. Initial statistical analysis produced 23 risks factors that would affect cost and time performance of M&E services projects and analysis of variance results show that no significant difference exists among the opinions of the professionals surveyed on the 7 risk factors. Factor analysis was adopted to classify the risk factors into five principal components namely, pre-contract risks, post contract risks, clients' related risks, procurement and external risks.The risk identification and ranking are good tools for assessment of risks related to M&E services projects. In addition, the classification of the risk factors can be used to establish important risk factors that require the attention of project participants. This will allow the client and contractor to understand the high-risk areas in M&E services projects and assign responsibility for those risks to the party or parties best situated to control them.