Adoption of Building Information Modelling (BIM) in the global construction industry is fast growing. This paper expounds the Critical Success Factors (CSFs) for BIM implementation and explore their ranking and underlying relationships. A total of 28 CSFs was identified from the review of previous studies on success factors. Survey questionnaire containing these 28 factors was used to collect data from industry practitioners in Nigeria. Benchmark metrics was developed to rank the success factors. The topmost five success factors for BIM implementation in order of importance are: standard platforms for integration and communication; cost of development; education and training; standardization (product and process); and clear definition and understanding of users’ requirement. Analysis of variance shows that significant differences exist in the pattern of rating for the topmost CSFs based on turnover. Factor analysis was further adopted to group the 28 CSFs into five components, using rotated component matrix method. The five components extracted are: (i) industry stakeholders’ commitment and knowledge of BIM, (ii) capacity building for technology adoption, (iii) organisational support, (iv) collaborative synergy among industry professional and (v) cultural orientation. The rankings of the CSFs provide basis for prioritising the most significant factors that industry stakeholders should focus attention for successful implementation of BIM. In addition, the underlying relationships among the success factors identified in this study, will assist industry stakeholders to determine best strategy to adopt in implementing BIM at industry level.
Urban green space (UGS) is a very important determinant of social and environmental fairness. Many developing countries are faced with a dearth of public green spaces and Ilorin in Nigeria is no exception. Despite the numerous benefits of these facilities, they are still the target of encroachment by other land uses. The study assesses green space distribution in Ilorin City, using the World Health Organization (WHO) standard indicators to evaluate its accessibility and availability. The primary instruments used are the Geographic Information System (ArcMap 10.3), Google Earth Engine (GEE), and administrative shapefiles of Ilorin West and South Local Government Areas. The results show that UGS is inadequate and only one out of the fourteen wards in the city meets the WHO 9m2green space standard and also offers 64.2 percent public access within a 300m distance radius. This result implies that Ilorin is not developing along the path of sustainability since the dearth of green space predisposes its inhabitants to immense danger. A recommendation was made for the design of a comprehensive green space master plan for the city. This shall put a check on the city's growth to foster sustainable development.
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