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The purpose of this study is to investigate the influences of the characteristics of procurement strategies, in this instance labour-only, on project performance concerning health and safety (H&S), a project performance indicator.

Using non-probability purposeful and snowballing sampling methods, questionnaires were used to collect data from construction professionals in Nigeria. This was then analysed using descriptive (frequency and mean scores) and inferential statistics (Mann–Whitney-U and Kendall's Tau_b tests).

The findings indicate a statistically significant negative correlation between ‘the level of client involvement and ‘fatalities' and a positive one with ‘conducting of health and safety risk assessment' and ‘conducting employee surveys on health and safety attitude’. Poor hygiene is found to be the worst lagging indicator, while conducting of inspection is the most adopted leading indicator of project health and safety performance. It also emerged that there is no significant difference in the health and safety performance of projects procured through the procurement strategy in urban and rural areas.

The study provides valuable insight into the complexities in H&S management due to the high level of client involvement in labour-only procurement system (LoPS) projects and the level of diversity in their responsibilities therein. It creates a fundamental direction for developing a detailed framework or guidance notes for client involvement in the integration of H&S into LoPS projects.

This is the first study that examines the influence of the characteristics of procurement strategy on project health and safety performance. Evidence in the literature shows that project delivery outcomes significantly improve if procurement is strategically used, including when it is considered early in projects. However, integrating H&S into procurement strategies has received little attention.

The purpose of this paper is to present the findings of a study that identified and assessed the barriers to client involvement in health and safety (H&S) in the Nigerian construction industry.

On the basis of literature review and a pilot study, structured questionnaires were designed and administered to clients and their representatives in ongoing construction projects in Nigeria. Descriptive and inferential statistics were then adopted while analysing the data.

The research reveals that the major barriers to client involvement in H&S in Nigeria’s construction industry focus on the gaps created by lack of H&S legislation in specifying client roles and responsibilities in H&S, trust and confidence in the supply chain, low levels of awareness at various levels, procurement issues, the attitudes of the various members of the project team and resource-related issues. In total, 20 barriers to client involvement in H&S were identified and assessed.

Policy makers will find the study beneficial as it provides a good understanding of the issues to address while making policies that seek to involve the client in H&S in Nigeria.

While the findings offer insight on the barriers to client involvement in H&S in Nigeria’s construction industry, the study also contributes to the discourse in developing countries. The paper recommends transparent steps in procurement, H&S legislation that factors in economic incentives and community and financial institutions contributions to involving clients in H&S. The study is the first attempt to investigate the barriers to client involvement in construction H&S in Nigeria, contributing to the dearth of H&S literature in Nigeria.

Given the complexities in improving safety in the construction industry globally, which is exacerbated by the complex safety environment in developing countries (DCs), prevention through design (PtD) has been established to improve occupational safety and health (OSH) where applied. However, it has received very little attention in DCs and the extant literature with limitations. Using Nigeria as a case study, the current study advances the understanding of PtD in DCs by investigating the critical barriers to PtD and other potential OSH responsibilities of designers in the construction industry.

Twenty-eight semi-structured interviews and e-interviews of architects, builders and civil engineers in Nigeria were analysed using the six-phase thematic analysis. To improve the trustworthiness of the research, triangulation, peer-debriefing, refining the interview protocol and thick detailed description were done.

The study's findings question the extant general knowledge and understanding of PtD among clients and designers and its technical aspect among designers where it is skewed to structural safety and omitted in universities' curricula. This explains the inconclusive findings of existing studies on why there is a high level of awareness of PtD but a low level of implementation. There is little client support for PtD, and designers have limited influence on clients in terms of it. The fear of liability from PtD is exacerbated by the limited legal system and lack of adequate legislation in the country. The demotivating attitudes of clients and contractors towards designers in terms of PtD are also reported, just as there are project delivery barriers such as traditional procurement not supporting PtD as design and build procurement does.

For the sustainable growth in the practice of PtD, the increased and improved quality of education and awareness of PtD is needed but this must focus on instilling a robust understanding of it among designers based on the local context. This educational requirement can be supported by statute.

Through qualitative data, the findings explain and offer insight into the inconclusive findings in the extant studies on PtD in Nigeria. Also, it contributes to improving health and safety by advancing the understanding of the critical barriers to PtD and other potential OSH responsibilities of designers in D Nigeria's construction using qualitative data.

There are serious implications for adopting inappropriate research strategies and methods, and this is evident in the Built Environment (BE) given the under adoption of qualitative strategies in some countries. Therefore, based on empirical evidence from Nigeria, the purpose of this study is to examine the challenges to and opportunities for establishing Qualitative Approach (QA) to BE research in higher education institutions (HEIs) and to develop an improvement framework for QA.

Academics and research students in the BE research of Nigerian HEIs were interviewed and the data analysed thematically. Based on the findings, including recommendations from the respondents, a framework for improving the use of QA in BE research was developed and academics evaluated it for workability.

This study reveals that the challenges to QA in BE research include information constraints, socio-cultural issues and the negative attitudes of senior academics to QA. The opportunities include the realisation for a paradigm shift, the characteristics of the socio-cultural context and features of BE and the general potentials of QA. The proposed framework encompasses encouraging and providing a platform for international collaboration between academics in developing and developed countries, and preferential treatment for QA. It also enables regulatory and incentive mechanisms, which will act as drivers.

This study provides stakeholders in academia with knowledge and a detailed guideline for establishing QA to research in the BE.

This study provides a country context-based detailed guide for establishing QA in HEIs BE research towards ensuring that research strategies adopted in BE research are fit for purpose, in turn are aligned to addressing problems in the society. There is little or no study of this nature in BE.

The purpose of this study is to examine the involvement of communities – geographical or geopolitical units, which identifies culture, interest and ethnicity – in construction health and safety (H&S) and the implications. This stems from the unexamined hence poorly understood roles of many stakeholders in the construction H&S management and regulatory regime in Nigeria.

Interviews with contractors and key informants and a survey of contractors were conducted. Descriptive and inferential statistics and thematic analysis were used.

There is evidences of community interventions: negotiating with contractors on H&S issues; strongly stipulating that H&S measures are adopted and implemented; and enforcing H&S through both violent and non-violent means. These have no legal backing. There is a relationship between the locations of the projects, urban area and rural area, and six community intervention variables. The study also reveals that among the implications of community interventions in H&S are contractors contextualising H&S in these communities and the tension between parties in construction projects. Again, there is a relationship between the location of the projects and six of the implications including the tension between communities and contractors and between contractors and clients.

In adequately addressing construction safety, health and environment issues in Nigeria, geographic location and socio-cultural consideration are pertinent, a point for policymakers, communities and contractors.

The study draws attention to the geographic location and socio-cultural explanations for the differences in the H&S management, performance and attitudes of contractors in Nigeria. This is the first study that examines the involvement of communities in H&S and the implications.

This purpose of this paper is to report the findings of a study that assessed the attitudes, commitment and impact of public and private sector clients’ involvement in construction health and safety (H&S) in Nigeria.

Structured questionnaires were designed based on literature review and a pilot study, and administered to public and private clients in Nigeria’s construction industry. Descriptive and inferential statistics were employed to analyse the data.

The result shows that while clients’ attitudes towards H&S are not encouraging, public clients commitment and attitudes are better than that of private clients. This is emphasised by the significant difference between the categories of clients and: accident investigation; clients auditing contractors H&S records at the preconstruction stage. The common client H&S practice includes conducting site visits and inspections and attending H&S meetings, while engaging in H&S awareness and H&S audit during construction are not common. However, when clients are involved in H&S, it has resulted in a reduction in accidents, compensation claims, rework and improved the relationship between clients and contractors.

The findings form a basis for improving client involvement in H&S (factoring in the differences in clients) which policymakers, the construction industry and academics will find beneficial.

The study contributes to understanding the attitudes and commitment of public and private clients in H&S, evidencing the implications of the differences in their needs, characteristics and behaviours. While the study is the first to investigate the area in Nigeria, it also extends the knowledge of the discourse comparatively in broader terms.

The purpose of this paper is to investigate the critical opportunities for design for safety (DFS), the potential statutory (and non-statutory) health and safety (H&S) responsibilities of designers including DFS and its workability in developing countries.

Interviews were conducted among 28 multi-designers including Architects, Civil Engineers and Builders and the data was analysed thematically.

The study revealed that the likelihood of designers, clients, etc. inclining to change because of the infancy stage of H&S in developing countries, making it “fallow” for H&S was a barrier. The opportunities for DFS include the willingness of designers to develop DFS skills and knowledge, which results in a welcoming attitude towards DFS. Further, the success recorded by professional bodies on other regulatory matters and designers' greater inclination to comply with DFS when professional bodies are involved in the regulatory process of DFS remain key opportunities for DFS.

For statutory-backed DFS to achieve the objective at the optimum level, the role of professional bodies in the regulatory and sensitisation processes, geographic differences in DFS legislation enforcement, nuanced and strategic design and enforcement of any legislation that will support DFS should be taken into consideration.

A grassroots collaborative approach to developing and implementing DFS in the country and the exploitation of the zeal of designers to have DFS-related knowledge, is recommended.

To the knowledge of the authors, this is the first study that examines the opportunities for DFS in developing countries when it is (or not) supported by statute and the need to advance the understanding of DFS in developing countries through qualitative enquiry.

This study aims to investigate whether clients’ knowledge about construction procurement systems influence project performance objectives and the role of procurement systems on project performance objectives in South Africa.

Using a two-round survey, 90 usable questionnaires from construction professionals in South Africa plus 3 expert clients were collected. The data were analysed using descriptive statistics – means, percentages and the analytical hierarchy process to determine the rank of client project performance criteria, while inferential statistics – Pearson product-moment correlation was used in establishing the relationship between the level of clients’ knowledge and project performance.

It was found that the common procurement systems used are traditional, followed by management-oriented and integrated procurement systems. In addition, it emerged that client’s knowledge of procurement systems shows a positive relationship with the achievement of project performance objectives. Based on these findings, it is concluded that some procurement systems being selected by clients in South Africa are inappropriately selected. This is despite the emergence of more efficient procurement systems. If procurement systems are selected based on the knowledge of the client, it will give better chances of a successful project outcome.

The research suggests the need for clients to seek ways to improve their understanding or increase their knowledge of procurement systems in construction. Policymakers’ responsibilities in driving policies that will place responsibilities on clients to seek a reasonable way to improve their knowledge where possible is implied in the study.

It contributes to improving project performance by examining whether the level of knowledge possessed by a client influences project performance.