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Governments in developing countries seeking to meet their infrastructure backlog are increasingly turning to public–private partnerships (PPP) due to a lack of public funds. However, while there are factors which drive the current uptake of projects, there are challenges with attracting private finance, and it is not clear what incentives can be used to attract more private participation, especially in sub-Saharan Africa (SSA). Therefore, this study aims to examine challenges, drivers and incentives that affect private participation in PPP projects in Zambia.

The study used a qualitative approach with semi-structured interviews with participants who had first-hand experience working on the administration of PPP projects. The participants were predominantly from the public sector, and so the results are largely a public sector perspective on the matter.

The findings show that bureaucracy and a poor business environment emanating from poor policies, long procedures and a poor economic environment are the main challenges affecting PPP projects. The current demand for the projects is being driven by a stable business and economic environment while incentives include enhancing the business environment by improving procedures and policies.

The study contributes to extant literature by proposing an overarching theory about the challenges affecting the implementation of PPP projects in Zambia, in particular, and in SSA, in general. The results show areas where governments and government agencies responsible for PPP projects can focus attention to promote private participation.

The purpose of this paper is twofold: first, to identify and rank the challenges influencing the delivery of the housing public-private partnership (HPPP) in Tanzania; and second, to suggest solutions in the form of a conceptual public-private partnership (PPP) framework model that will address the identified challenges and boost the chances of success.

Using a convergent parallel (concurrent) mixed method approach, data were collected from 28 stakeholders involved with HPPP projects in Tanzania using a hand-delivered and e-mail survey and 13 semi-structured interviews with public and private sector respondents. The quantitative data included subjecting the 19 challenges as identified from the literature to parametric tests such as one-sample t-tests and descriptive statistics tests such as measures of central tendencies and frequency analysis through Statistical Package for Social Sciences (SPSS 22.0). Qualitative data employed content analysis. The research was further underpinned by a number of theoretical perspectives such as Gidden’s structuration theory, contingency theory, relational and equity theory.

The top five ranked challenges influencing the delivery of HPPP were “inadequate PPP skills and knowledge”; “poor contracting and tendering documents”; “inadequate project management”; “inadequate legal framework”; and “misinformation on financial capacity of private partners”. The least six ranked and most significant challenges based on the one-sample (single) t-tests were as follows: “Poor risk allocation”; “inexperienced private partner”; “unequal qualification and contributions of expertise”; “poor enabling environment to attract competent partners”; “inadequate mechanisms for recovery of private investors’ capital”; and “high costs in procuring PPP projects”. The qualitative study further confirmed the challenges and cited the reason for the failure of joint venture projects as the lack of motivation for undertaking similar PPP projects. Despite the increased awareness of PPP projects and associated marginal benefits, the main impediment to the uptake and delivery of PPP housing projects remained the lack of skills and expertise.

The proposed framework model is not yet tested, but since this paper is part of the ongoing research, the next stage involves the testing and validation of the model. Future studies could test the applicability of the proposed framework in other HPPP projects in Tanzania, and in other similar developing countries. Second, the validated framework can contribute towards addressing similar challenges as well as providing guidance. The proposed framework model is not yet tested, but since this paper is part of the ongoing research, the next stage involves the testing and validation of the model. Furthermore, recommendation for future research is to test the alignment of the identified challenges to the proposed remedial solutions across the five phases within the proposed PPP framework with a number of case studies.

The identified challenges were used to form the basis of the framework presented in this paper. Furthermore, these provide useful information, thus leading to increased awareness to enable successful delivery of HPPP in Tanzania. Similarly, both the government and policy makers could use the findings as the basis for re-examining the existing PPP policy and regulations, and reflecting on the existing situation with a view to improving the delivery of future HPPP projects.

The empirical study is among the first that identifies and ranks the challenges of PPP for housing projects delivery within the Tanzanian context. The identification of the challenges enabled their ranking, resulting in the mapping out of the most critical challenges. Furthermore, using the Gidden’s structuration theory, the study illustrates how institution mechanisms (structures) address these delivery challenges, thus influencing the implementation of HPPP in Tanzania, and how individual stakeholders (human agents or agency) are able to make choices (advocated solutions) in dealing with the challenges. More so, these constraints (challenges) as identified and viewed through the contingency and equity theoretical lenses form the foundation for developing the PPP conceptual framework. The proposed framework would thus serve as a mechanism for providing practical solutions as well as reducing the level of severity of the identified challenges.

The purpose of this paper is to identify the critical success factors (CSFs) and key areas for improvement for public–private partnerships (PPP) in affordable housing schemes (AHS) projects, using Tanzania as a case study.

Semi-structured interviews were conducted with 10 public and private sector practitioners in Tanzania. The collected data and the interview transcripts were analysed using the standard qualitative analysis technique of content analysis.

The findings show the six most important CSFs as: a dedicated team of professionals to oversee the PPP projects, official and unofficial site visits and inspection, government support and guarantees, undertaking checks and balance from the design stage to construction stage, scrutiny of PPP project proposal and trust and integrity. The mapping of the CSFs across the PPP project lifecycle highlighted a higher incidence across the following phases: building (n = 11), preparation (n = 10) and operational (n = 9).

The identification of these CSFs would support PPP practitioners in successfully implementing PPP in AHS; besides, there is potential for their inclusion in the future development of the affordable housing PPP conceptual framework. Therefore, based on the identified CSFs, both the government and policy makers could use the findings as the basis for re-examining the existing PPP policy and regulations and reflecting on the existing situation with a view to improving the delivery of future PPP projects.

This paper provides the first empirical study by applying direct content analysis to identify and understand the CSFs and key areas for improvement for PPPs in AHS within the Tanzanian housing sector. This is rather an under researched subject around CSFs for PPPs from developing countries such as Tanzania.

Implementation of public–private partnerships (PPPs) in African projects is inundated with a number of capacity building challenges which affects growth and project performance. Further, there is paucity of empirical studies on the strategies for overcoming these challenges. Therefore, this research addresses that knowledge gap by examining the human capacity building (HCB) strategies for improving PPP implementation in construction projects in developing countries, with a focus on Tanzania.

HCB strategies identified from the scoping review were administered to 81 handpicked Tanzanian practitioners attending PPP training course. To examine the differences in the perception of the identified HCB strategies, and the relationships between different pairs of the HCB strategies, the data were subjected descriptive statistics, parametric tests, Kendall’s concordance and Pearson correlational analysis, including group wise correlation analysis.

Based on the overall sample, “Engagement of stakeholders on capacity development”, “Organization of PPP seminars and training” and “Introduction of in-house training to Public institutions expected to undertake PPP projects” are the top ranked HCB strategies. “Development of study tours to stakeholders involved in PPP projects” is the least ranked. Significant differences between the sub-groups of “no PPP experience” and “some PPP experience” were evident for “Invitation of International experts to share experiences” and “Sharing of responsibilities” HCB strategies. The “no PPP experience” group rated both strategies higher than those with “some PPP experience”.

The identified HCB strategies can be used as a “road map” for the development of appropriate engagement strategies with various stakeholders for the successful implementation of PPP thereby, enhancing the performance of the construction firms.

Eight strategies have been identified from the literature and tested for the Tanzanian context. The uniqueness of Tanzanian PPP implementation context arising from varying cultural, organizational, political and economic conditions differentiates the priority of HCB strategies when compared to other contexts where these strategies were investigated. This is germane to the PPP research.

While previous studies have highlighted the importance of incorporating environmental sustainability in building designs, there is a paucity of studies that assess the extent to which design teams in developing countries consider environmental sustainability at the building design stage. Therefore, using Zambia as a case study, this study examined the extent to which infrastructure design teams in a developing country consider environmental sustainability at the design stage.

The study used a qualitative research approach using structured interviews because there are hardly any studies which have explored the extent to which designers incorporate environmental sustainability in infrastructure designs in developing countries. The data is analysed thematically using the ATLAS.ti software.

The results show that environmental sustainability is not an important design consideration because it is secondary to functional, technical and aesthetic considerations. Environmental considerations are also made in an ad hoc manner and when it is cost-effective for the project. Regulatory requirements pertaining to environmental protection are adhered to without any cost considerations. It was, therefore, theorised that building design teams in developing countries make technical, functional and aesthetic consideration during the infrastructure design stage ahead of environmental considerations.

There is a paucity of studies that have investigated whether building infrastructure designers consider issues of environmental sustainability at the design stage in developing countries. The findings have practical implications on how developing countries can foster environmental sustainability at the design stage and avoid generating a building infrastructure stock that will require environmental resilience adaptation in the future.

The informal settlement issues represent significant social, economic and environmental challenges across the globe. The need to upgrade the informal areas is stimulated by the rapid population growth, inadequate infrastructure and poor living conditions. Therefore, in achieving Sustainable Development Goal 11, this study aims to identify and assess the key infrastructure challenges and explore the underlying relationships among them impacting the community members in the informal settlements (IS) in Tanzania.

A literature review identified and evaluated 19 infrastructure challenges in the IS. Using a quantitative approach, a questionnaire survey was administered to community members to collect data. Exploratory factor analysis (EFA) was employed to analyse the quantitative data.

Through EFA, the 19 infrastructure challenges were grouped into four distinct categories based on their underlying patterns and relationships. These categories are: (1) economic and environment infrastructure-related challenge; (2) housing and health infrastructure-related challenge; (3) social infrastructure-related challenge and (4) infrastructural cost and quality-related challenge.

The classification of the challenges into a taxonomy offers pertinent information that can be utilized as a basis for implementing integrated measures. The findings would assist governments, policymakers and other stakeholders in making informed decisions about resource allocation and urban planning strategies. This guarantees that resources and funding are allocated to the most essential areas.

This study is among the first that identifies the challenges and highlights the relationships among them impacting the IS. The insights drawn from this study would inform government and policymakers in the formulation of inclusive urban policies in collaboration with the built environment professionals to improve access to urban infrastructure services in the unplanned settlements in Tanzania to foster inclusive development and ensure sustainable urban growth.

The purpose of this paper is to examine the Tanzanian practitioner’s readiness assessment for public–private partnership (PPP) adoption. This study is important as the readiness assessment enables the stakeholders to assess their capability and current status quo to implement new ideas such as PPPs.

Underpinned by the theoretical lenses of innovation diffusion theory (IDT), this research undertakes semi-structured interviews with PPP practitioners within the Tanzanian affordable housing sector. The content analysis was used for the data as collected.

“Lack of awareness and usage of PPPs framework models during the feasibility and subsequent implementation process”, “Limited knowledge and skills required for PPP practitioners”, “Poor capacity building”, “Lack of engagement of experts during the viability and assessment process” and “Poor selection process of private partners giving rising to unsolicited proposals” are the main PPP features influencing the readiness process and fostering of innovation.

The identification of the readiness approaches would support PPP policymakers and stakeholders with the government mechanisms for identifying the key areas needed to be addressed to improve the PPP implementation performance.

Outputs of this study provide insights on how to foster a better understanding of the readiness assessment strategies and approaches for successfully implementing PPP in affordable housing projects.

The acknowledged mode of securing work by contractors is through the bidding process. However, the bidding decisions undertaken by some indigenous contractors in developing countries are fraught with challenges that often engender bidding practices (such as collusion through price fixing and intentional lower bidding) and threaten business survival. Therefore, in the quest to better understand these challenges and viable advocate solutions for overcoming them, this paper aims to identify the key challenges impacting the bid decision process by small indigenous building contractors in Dar es Salaam, Tanzania, and establish the strength of their relationship between the pairs of key challenges.

A comprehensive literature review was conducted to identify nine challenges impacting the bid decision of indigenous building contractors in Tanzania, which were used to design a questionnaire survey. Data collected were analysed using descriptive statistics, mean score, inferential statistics (One sample t-tests), Kendall’s concordance and correlation analysis.

Challenges identified from a literature review were empirically tested using survey responses accrued from 33 participating small indigenous building contractors in Dar es Salaam, Tanzania. The findings illustrate that lack of liquidity, profit returns, lack of equipment, lack of experience of several works and procurement procedures are perceived as being the five most critical challenges. Project location, site accessibility and lack of labour were least critical. The major finding from the correlation analysis was the existence of the strong and positive correlation between “project location” and “site accessibility”.

The study is limited by its sample and geographical settings which focussed and confined the results on one country, Tanzania. However, the findings can be considered as important for other developing countries wishing to gain insights into the challenges impacting bid decisions.

Measures for addressing the identified challenges impacting the bidding decisions of the indigenous small building contractors would be undertaken. The findings will enable contractors to not only reconcile the challenges with the industry and in so doing benefit both themselves and the clients but also enable them to be better prepared to deliver contractual obligations and generate socio-economic wealth. Government and policymakers will also be able to appropriately develop macro interventions for managing these challenges, which could be custom-tailored to indigenous small contractors. Finally, improving the ability of local firms to compete in the construction industry has been recognised as having the potential of advancing socio-economic development within the comity of developing countries.

The study enhances government, client and practitioners’ understanding of the challenges affecting the bidding practices among the indigenous building contractors in Tanzania. This area of investigation has previously been under explored particularly sub-Saharan Africa.

The purpose of this study is to identify sustainability assessment indicators of road infrastructure projects by analyzing and synthesizing existing literature, considering that, despite being essential to achieving the sustainable development goals, sustainability performance in road infrastructure projects is a persistent challenge. Therefore, determining how sustainability can be assessed in these projects is crucial, necessitating a systematic review of the sustainability assessment indicators of road infrastructure projects.

Using PRISMA principles, 54 peer-reviewed papers from 2010 to 2022 were retrieved from three search databases (Scopus, Research for Life and Google Scholar) as part of a systematic literature review. Data analysis techniques included both descriptive and content analysis.

The study identified 22 indicators. The results emphasized that the sustainability of road infrastructure projects should consider all three sustainability dimensions to provide development while meeting human needs, preserving the planet Earth and enhancing economic growth. Similarly, indicators should be incorporated from the design phase to implement and attain sustainability successfully.

The outcome of this study will serve as a guide to road infrastructure stakeholders to understand the relevant sustainability indicators to assess the sustainability performance of their projects.

The study’s findings provide the sustainability assessment indicators for roads, which serve as a foundation for developing a sustainability assessment indicator framework for road infrastructure projects. Future research can look at establishing the indicators for the end-of-life phase of the project lifecycle.

The purpose of this paper is to identify and rank policy and regulatory framework factors and inherent pitfalls in the delivery of Tanzanian public–private partnerships (PPPs) affordable housing schemes. The strength of interactions between pitfalls is established, with practical solution proposals offered.

Primary data were collected from questionnaires administered to 28 Tanzanian stakeholders. Semi-structured interviews with public and private sector respondents then complemented survey findings with proposed solutions. The quantitative data were analysed using descriptive statistics, mean scores, parametric tests and correlation analyses. Directed content analysis was used for the interview transcripts.

Results show that “current PPP policy and guidelines need further improvement” and “Tanzania has a PPP policy and clear regulatory framework” were rated higher as policy and regulatory factors. In contrast, “poor planning skills and analytical capacity”, “high cost of building materials” and “inadequate access to housing finance” were the critical pitfalls. Most practical solutions were broadly financial in nature, or related to training, project management or PPP-enabling environment.

The paper provides solutions that can be tailored to international practitioners interested in understanding the effects of PPP policy, regulatory issues and pitfalls on Sub-Saharan Africa and other similar developing economies.