The Encyclopedia of Housing

The actualization of affordable housing remains a challenge. This challenge is exacerbated by the increasing societal demand for the incorporation of sustainability principles into such housing types to improve levels of occupant health and well-being whilst avouching the desired levels of affordability. Innovative technologies and practices have been described as beneficial to the effectuation of sustainable affordable housing. However, knowledge concerning the deployment of innovative technologies and practices in sustainable affordable housing (sustainable, innovative, affordable housing—SIAH) delivery remains nascent. Consequently, there is a lack of a common ontology among stakeholders concerning how to realize SIAH. This study aims to contribute toward the development of this body of knowledge through the establishment of the critical success factors (CSFs) for effective SIAH implementation. To achieve this objective, a systematic review and bibliometric analysis focusing on a juxtaposition of sustainable, innovative and affordable housing concepts was carried out based on the relevant literature. This led to the identification and clustering of CSFs for these housing concepts at individual levels and as a collective (SIAH). The findings of the study consisted of the establishment of four distinct yet interrelated facets through which SIAH can be achieved holistically, namely, housing design, house element, housing production method and housing technology. A total of 127 CSFs were found to be aligned to these facets, subsequently clustered, and conclusively used for the development of a SIAH CSF framework. The most frequently occurring CSFs with predominant interconnections were the utilization of energy-efficient systems/fittings, tenure security, a comfortable and healthy indoor environment, affordable housing price in relation to income and using water-efficient systems/fittings CSFs, and establishing the emergent SIAH CSF framework. The framework in this study is useful in the documentation of SIAH features for construction projects and further studies into SIAH CSFs.

https://www.mdpi.com/2075-5309/11/8/317/pdf

A Critical Success Factor Framework for Implementing Sustainable Innovative and Affordable Housing: A Systematic Review and Bibliometric Analysis

This study features the development of a framework to identify drivers towards increasing adoption of modular integrated construction (MiC) methods for affordable sustainable housing (ASH). The rise of offsite construction (OSC) techniques, especially MiC, has been evident in recent years. MiC’s adoption in ASH is still underdeveloped; however, due to various benefits of MiC over conventional construction methods, it is envisioned to be a significant emerging approach for tackling growing housing demand, and ASH in particular. Although a few prior studies identified some factors for utilization of MiC towards ASH, studies to date have not provided a holistic review of drivers or a comprehensive framework of the interrelationships between such drivers. To address this issue, this study utilizes a three-way process including a systematic literature review, semi-structured interviews and the Total Interpretive Structure Modelling (TISM) method to study the drivers for MiC adoption in ASH. Initially, 111 drivers were extracted from a review of 40 studies in the existing literature. Following that, the significant drivers of MiC adoption for ASH were grouped into cost, time, productivity, quality, environmental, social, policy and demand. Drawing on concepts of systems thinking and graph theory, the TISM model for eight drivers was developed from both the literature review and the interview results. Four levels of hierarchy were found among drivers containing linkage, driving, depending and autonomous. Succeeding the steps of TISM and Reachability Matrix (RM) and Matrice d’ Impacts Croises-Multipication Appliqué a Classement (MICMAC) analysis, social drivers were found to have the highest driving and lowest dependency power, followed by productivity and policy drivers. This signifies the importance of social factors for enhancing MiC adoption for ASH. In addition, a strategic framework of boosting MiC adoption in ASH is also presented, highlighting the key stakeholders and strategies for transformation along with conclusions. This study delivers a wider landscape of drivers for MiC-ASH synergy that may assist practitioners, policy makers and relevant stakeholders to better understand the relationships between the drivers.

Drivers towards Adopting Modular Integrated Construction for Affordable Sustainable Housing: A Total Interpretive Structural Modelling (TISM) Method

The emergence of a plethora of innovative construction methods, materials and technologies in the construction industry has been projected to enhance the effective delivery of sustainable affordable housing. However, a lack of empirical evidence buttressing an extensive analysis of the effect of internal and external influencers on adopting these innovations within the affordable housing context in developing countries persists. This study examines the nexus between company and project characteristics as internal influencers, and challenges as external influencers, on the extent of use of sustainability-oriented innovations (SOIs), on affordable housing projects. Variables emanating from an extensive literature review were presented in a causal model detailing sustainable, innovative, and affordable housing (SIAH). The model and the inherent causality between the constructs were validated through a survey administered on a population of registered South African home developers. The results of structural equation modelling posit a minimal positive impact of internal influencers and moderate negative effects of external challenges on the extent of use of SOIs by home developers. Also, results highlighted the negative mediating impact of challenges on the relationship between internal influences and the extent of use of SOI in affordable housing projects. The study concludes that the external challenges are the key drivers of adopting innovation in SIAH, and by addressing these challenges, the extent of use will significantly improve. The validated causal model can be used as a framework to enhance SOIs adoption in SIAH. 

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Appraising the nexus between influencers and sustainability‐oriented innovation adoption in affordable housing projects

Natural hazards bring significant influences on and socioeconomic loss to cities and communities. Historic events show that fire following earthquake (FFE) is the most influential uncertain disturbance on the urban infrastructure system. Under the FFE scenario, the concept of resilience is widely implemented to make up the shortcomings derived from the traditional disaster management methodology. Resilient cities and communities are required to improve the systemic performance in responding to the FFE. To fulfill these goals, measuring community resilience is an essential work for municipal policy makers. Therefore, this study conducted a comprehensive assessment on community resilience adapted to the FFE scenario. The systematic literature review (SLR) was employed to identify the indicators, and the analytic network process (ANP) technique was implemented to determine their weights. 20 indicators were extracted, and 4 communities that encountered FFE in China were selected for the empirical analysis. Thereafter, the preference ranking organization method for enriched evaluation (PROMETHEE) II technique was selected through using the multicriteria decision analysis (MCDA) methods selection framework to fulfill the comprehensive assessment. The results were discussed and demonstrated with graphical analysis for interactive aid (GAIA) technique. The findings revealed that the G Community won the highest score and had the strongest performance. However, H Community had the lowest score and the weakest performance. The proposed comprehensive methods could benefit the decision-makers and the policy executors achieving the community resilience adapted to the FFE scenario by improving the effective indicators.

Scenario-Based Comprehensive Assessment for Community Resilience Adapted to Fire Following an Earthquake, Implementing the Analytic Network Process and Preference Ranking Organization Method for Enriched Evaluation II Techniques

The rapid, exponential fusion of technologies which profoundly disrupts all industries and processes is commonly described as the Fourth Industrial Revolution (4th IR). The Built Environment (BE) sector has long been overdue for radical transformation that is symphonious with global trends. Consequently, how to incorporate 4th IR in BE education remains challenging. This research aims to establish what educational methods, context, tools, and technological pedagogy are required and should be adopted, as well as what the effects and outcomes can be expected from the incorporation of the 4th IR concepts in BE education. The rationale for this research stems from the aspiration to meet the United Nation Sustainable Development Goals, which advocate that young people need to be "future-ready" and this includes digital fluency and ICT literacy. The study utilised a verifiable and reproducible systematic literature review of digital education; with analysis and scrutiny of 582 academic articles for the co-occurrence of keywords, using a mixed bibliographic and bibliometric method. Through clustering analysis based on the bibliometric method, the key elements, outcomes, and their interconnections of incorporating 4th IR in BE education were outlined. The paper revealed that, in adopting 4th IR, Higher education, Design, Innovation and Privacy appear to be the predominant context. Distance education, Collaborative learning and Digital learning are the foremost education methods. Digital technologies, Virtual reality and cloud computing are the most significant education tools and technology elements. Sustainable education, Ethical learning and Student engagement are the resultant primary outcomes of incorporating 4th IR in built environment education. In addition, the results of the interconnections of indicators analysis revealed Higher education, Distance education and Sustainable education are significantly intertwined with Digital technologies. Based on the taxonomy of key elements and outcomes and the analysis of their interconnections, a conceptual framework for adopting 4th IR in built environment education was developed

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Establishing the key elements of incorporation and outcomes of 4th industrial revolution in built environment education: a mixed bibliographic and bibliometric analysis

African cities are growing rapidly into inefficient, unsustainable, resource-starved ecosystems that negatively affect the local economy and food production. Food as a critical resource needs to be produced and managed more efficiently by local communities in the urban area. Urban smart farming (USF) has emerged as an important mechanism to address these challenges to achieve sustainable, resilient, and inclusive cities. USF has the potential to be the industry 4.0 green revolution in agriculture, which embodies innovative digital technologies. However, it is unclear how local African communities and key stakeholders perceive this novel solution and if they are willing to engage in its uptake. This study examines the relationship between the perceived benefits and challenges of USF and the willingness of local African communities to actively participate in USF projects as a potential mechanism to improve local economy and food production. To assess this relationship, a causal model was developed. In this causal model, the local economy and food production were defined as dependent variables. The conceptualized model and the inherent causality between the constructs were validated through a survey administered among African cities’ residents. The results of structural equation modelling indicate a significant positive impact of perceived benefits of USF as well as the willingness of African communities to engage in this technology on local economy and food production. Only minimal adverse effects of the perceived challenges of USF on the local economy and food production have been found. The study concludes that the benefits and willingness of local communities are the key drivers for implementing urban smart farms in African metropolitans. Therefore, it is recommended to focus on the benefits and the motivation of local communities in African cities where USF shall be further developed, rather than on the barriers. The validated causal model can be used as a framework to facilitate the adoption of USF in Africa and consequently enhance the local economy and food production in African cities.

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Effects of Urban Smart Farming on Local Economy and Food Production in Urban Areas in African Cities

Establishing the key elements and outcomes of incorporation 4th IR in construction education: A mixed bibliographic and bibliometric analysis

Townships in South Africa are characterized by underdeveloped urban neighborhoods on the periphery of cities, where their inhabitants suffer from a poor quality of life. Given the relative lack of empirical research on the wellbeing of people living in townships in South Africa, this study attempts to fill the gap by understanding and modeling the relationships between household socioeconomic characteristics, housing and neighborhood conditions, and individual and community wellbeing to develop and empirically validate a neighborhood wellbeing framework. The hypothesized associations from the wellbeing framework were tested using 389 household interviews of the three largest townships in South Africa. The findings identify the challenges associated with adequate housing and lack of infrastructure in townships and how these affect the wellbeing of individuals and communities. The conclusion demonstrates how the neighborhood wellbeing framework, as an interdisciplinary approach, can improve the quality of life of inhabitants and communities in urban neighborhoods in general.

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Christiana Ekpo

Papers

A Critical Success Factor Framework for Implementing Sustainable Innovative and Affordable Housing: A Systematic Review and Bibliometric Analysis

Establishing the key elements of incorporation and outcomes of 4th industrial revolution in built environment education: a mixed bibliographic and bibliometric analysis

Effects of Urban Smart Farming on Local Economy and Food Production in Urban Areas in African Cities

Establishing the key elements and outcomes of incorporation 4th IR in construction education: A mixed bibliographic and bibliometric analysis

Modeling the Neighborhood Wellbeing of Townships in South Africa