Theoretical model of trust-based relationships in building information modelling supply chain for construction projects

The structure of relationships among project participants has a significant impact on trust development, while the number of participants involved in the relationship increases the complexity of trust. Hence, it becomes inappropriate to generalise the existing dimension and components of trustbased relationships to trust-based relationships among the building information modelling (BIM) supply chain members because of the multiple structures of relationship and the numerous interpersonal and inter-organisations that participate on BIM-based construction projects. This article investigates the nature of trust-based relationships among the BIM supply chain members and establishes whether the requirements of  the BIM process influence trust-based relationships among the BIM supply chain members. A five-stage PRISMA was adopted for systematic reviews and meta analysis. The systematic review enabled the development of a theoretical model of trustbased relationships in BIM supply chain which was subjected to meta-analysis for validation. The findings revealed that trust-based relationships among the BIM supply chain members entail trusting and trustworthy behaviours, positive expectations, and positive reputations, under which twenty-seven components were identified and classified appropriately. The article concludes that the nature of trustbased relationships among the BIM supply chain members, as influenced by the requirements of the BIM process, can be explained as trusting and trustworthy behaviours, positive expectations, and positive reputations. The article advances the understanding of trust-based relationships among the BIM supply chain members and recommends a first-hand investigation into the nature of trust-based relationships among the BIM supply chain members in future studies.&nbsp

Influence of Construction Materials Supply Chain Network Structures and Strategies on Project Delivery in Obafemi Awolowo University, Ile-Ife, Nigeria

The selection of type of contract for specific materials supply chain has been identified as one of the factors affecting materials management; and also affecting the objectives of construction material supply chain network systems which are the minimization of procurement cost, enhancement of material delivery and quality improvement. However, the influence of supply chain network systems as being practiced in the Nigerian Construction Industry on project delivery has not been well researched into. Therefore, this study carried out a questionnaire survey to address the problem. In total, 60 questionnaires were administered to small contractors and material suppliers in the study area with a response rate of 100%. The data was analysed using percentage tables, relative importance index, linear regression and Pearson’s coefficient of correlation and determination. The findings revealed that the use of phone and personal interaction are the network systems employed by small contractors to relate with material suppliers as both systems ranked 1st and 2nd respectively.  The findings also revealed that suppliers and small contractors are not employing Information Technologies in their supply chain network, and that strategies employed by contractors to select suppliers have positive influence on cost, quality and schedule of projects. Keywords: Construction materials, Supply Chain Network, Supply chain

Modeling the determinants of BIM-enabled integration and collaboration

Purpose – BIM research to date has in general zeroed in on featuring the significance of BIM-enabled integration and collaboration (BIMIC) rather than giving exact proof of its occurrence. Accordingly, this research quantitatively explored the determinants of BIMIC in South Africa. Design/methodology/approach – This research conceptualized a four-pillar model of BIM-enabled integration and collaboration. The speculations in the model were examined using SEM-MLE. Findings – The aftereffects of the SEM-MLE demonstrated that network communication, knowledge sharing, and transfer, information sharing and exchange and trust-based relationships are critical determinants of BIMIC. The model's prescient power demonstrates an acceptable validity, and the boundary gauges showed that all the hypotheses were measurably huge. Research limitations/implications – This research gives a hypothetical premise for further investigation of BIMIC by supporting the postulations on the occurrence of collaboration and integrations among the BIM-SCM. Practical implications – The idea investigated involving SEM in this research gives a holistic view to the BIM managers in arranging BIM-based activities and overseeing BIM cycles and supply chain members. It likewise offers rules and structures for accomplishing and overseeing integration and collaboration among the BIM supply chain members. Originality/value – Despite 20 years of exploration on the BIM concept and adoption, no idea has been given to clarify the determinants of integration and collaboration as a BIM cycle. The four-pillar model of BIMIC created and tested in this research clarified BIMIC and contributed a new model to the current literature on the BIM process

Building Information Modeling—Enabled Construction Safety Culture and Maturity Model: A Grounded Theory Approach

The study examines the dimensions and components of construction safety culture and whether the application of BIM technologies to the dimensions of construction safety culture improves the safety maturity levels among construction workers. The study employed a systematic literature review and grounded theory in achieving the research objectives. The dimensions and components of construction safety culture were found to comprise of a safety management system, safety behavior, and safety climate. A bim-enabled conceptual model of construction safety culture was developed as an output of the study. The model demonstrates how the dimensions of construction safety culture change the maturity levels of safety among construction workers as enabled by BIM technologies. The model has implications for improved construction safety management practices through the use of BIM on construction projects. The study concludes with implications for practice and future research

Thermal Comfort and Occupant Behaviour in Naturally Ventilated Students’ Hostel Buildings: A Case of Covenant University, Ota, Nigeria

The performance of a building goes a long way in affecting the productivity and heath of its occupants. Indoor thermal comfort of a building is one of the most important considerations. In warm humid tropical areas, natural ventilation has been observed to be ineffective in providing adequate thermal comfort. The study examined the thermal comfort of naturally ventilated students’ hostel buildings in Covenant University, Ota, Ogun State, Nigeria, during the hot season. The study identified and assessed the physical characteristics, examined the indoor environmental conditions relating to thermal comfort, identified and examined factors that affect the thermal comfort of occupants and observed their adaptive behaviors.The study involved a subjective assessment through questionnaires and physical measurements of the prevailing indoor environmental variables. The parameters measured were air temperature, air velocity and relative humidity. This was done using a Kestrel 4500 Pocket Weather Tracker. One hundred respondents participated in the survey. A statistical analysis of the measured environmental parameters and the student’s responses was carried out to determine the indoor environmental conditions and adaptive measures used. All the measured parameters fell below the comfort range prescribed by ASHRAE standard 55 and ISO 7730 standard. The study concludes that natural ventilation alone is insufficient to provide adequate thermal comfort levels for its occupants

Measuring the effects of mobile technology barriers and enablers on acceptance and proficiency in the Nigerian construction industry

The impact of mobile technology (MT) barriers and enablers on MT acceptance and proficiency is poorly understood on construction sites in Nigeria. As a result, this article investigated MT acceptance and proficiency levels, as well as MT barriers and enablers, to find out how they affect MT acceptance and proficiency. The research employs a quantitative research design with a structured questionnaire survey. Mean score analysis, exploratory factor analysis (EFA), and paired two sample t-test were among the statistical analyses performed. The research centred on construction site managers in Lagos State, Nigeria. The barriers and enablers of MT have a significant impact on MT acceptance and proficiency. Mobile devices, mobile apps, site documentation, site organisation, and site communication all benefit significantly from task smoothening. Complicated interfaces have a strong effect on site documentation; security concerns have a high impact on mobile devices and site communication, and network outages have a greater impact on mobile services, mobile apps, site documentation, site programming, and site administration. The study suggests that the academic programme be updated, in order to produce digitally compliant future construction professionals and accelerate the advancement of MT-based innovative solutions in the Nigerian construction industry

Effect of anti-corruption systems’ logic on corruption manifestations in project planning and execution in Nigeria

The absence of logical reasoning in the implementation of anti-corruption measures has exerted a significant influence, leading to misguided anti-corruption endeavours in nations such as Nigeria. The objective of this study is to discern the underlying rationale behind anti-corruption systems and ascertain their impact on the occurrence of corruption in the context of project planning and execution (PPE) within Nigeria. The research formulated a theoretical framework that classified the anti-corruption measures into three distinct systems and elucidated their underlying rationale. The model postulates that anti-corruption measures that exhibit a significant influence on corruption in the realm of PPE are those that prioritise the enhancement of reputation and remuneration. The hypotheses were extracted from the model and subjected to testing through the utilisation of multiple linear regression (MLR). The efficacy of all the classifications of anti-corruption systems was determined to be inadequate in mitigating the occurrence of bribery, fraud, and substandard documentation. The empirical findings indicate that the expansion of information access exhibits a robust logical framework and exerts a substantial influence on the prevalence of corruption within the realm of PPE in Nigeria. The results of this study propose a potential strategy for an anti-graft campaign and provide insights into the importance of consolidation

Causality between challenges, availability, and extent of use of local building materials

The promotion of sustainable practice in construction has resulted in a renewed focus on local building materials (LBMs). However, existing studies have not provided an extensive understanding of the challenges in the use and awareness of the availability of LBMs. In this study, we examine the challenges in the use and awareness of the availability and environmental performance of LBMs in South Africa. Based on a review of related literature, a questionnaire survey was undertaken to collect data from stakeholders in the construction industry. Structural equation modelling was conducted to validate the causality between the constructs. We found that the negative impacts of the challenges in the use of LBMs significantly reduce if stakeholders are aware of the environmental performance of LBMs in South Africa. The extent of the use of LBMs will increase with an awareness of their environmental performance and availability. Acquisition of the technical knowledge associated with LBM-based construction processes and recognition of the use of LBMs for building projects in building requirements and regulations are recommended. Significance:The study provides an understanding of the challenges in using LBMs linked to construction stakeholder awareness of their availability and environmental performance. This understanding will promote the use of LBMs in the construction industry and provide a valuable reference for stakeholders in decision-making and policymaking on their use

BIM implementation: an empirical validation for a four-wheel model

Purpose – Because BIM adoption is still afflicted by various types of hurdles, a complete BIM implementation model is required to provide the necessary methods for driving BIM adoption. As a result, this study looked into the parts of the BIM implementation model that had the most impact on increasing the percentage of BIM adoption in South Africa. Design/methodology/approach – This study developed a four-wheel model of BIM implementation based on implementation process theory, which includes BIM inspiration, BIM capacity development, BIM use and BIM commitment. To assess BIM capacity development, two sub-constructs (BIM learning process and BIM learning methodologies) were used. Two sub-constructs were used to assess BIM utilisation (efficient BIM application and effective BIM application). The sub-constructs employed to quantify BIM motivation were organisational competitiveness, societal conformity and contractual obligations. Incentives, investments and obligations were used to assess BIM commitment. The model was validated using four assumptions and maximum likelihood estimation – structural equation modelling (MLE-SEM). Findings – The MLE-SEM results demonstrated unequivocally that all of the constructions are critical components of the BIM deployment paradigm in the South African construction industry. BIM motivation, as characterised by organisational competitiveness and social compliance, has the greatest impact. The findings on BIM motivation also revealed that the desire for technological sophistication, competitiveness and social acceptance by clients are encouraging construction organisations and professionals to embrace BIM adoption. Research limitations/implications – This study's findings have contributed to the increasing body of literature on BIM deployment. The study has significant implications for achieving BIM implementation in underdeveloped nations where BIM deployment is either non-existent or in its early stages. The theoretical component of the study serves as the foundation for further analysis of BIM deployment. Practical implications – This research is important for identifying BIM goals, developing a BIM implementation framework, allocating resources for BIM implementation and defining key performance indicators for BIM implementation. The BIM implementation aspects outlined in this study will be effective in lowering BIM adoption hurdles. Originality/value – This study makes a unique contribution to BIM research by providing theoretical and empirical analysis into the elements of the BIM implementation model in a developing country. The study offers an excellent opportunity to further our understanding of BIM application in underdeveloped nations