The informal city as a socio-technical system: Construction management and money distribution in the informal and upgraded communities of Bangkok

Celentano, Giulia; Göswein, Verena; Magyar, Jeffrey; Habert, Guillaume

doi:10.1016/j.jclepro.2020.120142

Cited by 7 publications

(5 citation statements)

References 32 publications

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“…Buying energy-intensive and fossil-based materials manufactured by a multi-national company induces by definition a flow of money towards oil-producing countries and the shareholders of the multi-national. The degree of dependence on fossil fuels is different for each country and each material and would require specific quantitative measures [47], but it is clear that an appropriate choice of materials and technology [48] will allow to maintain the majority of the financial investment for construction in the territory [49].…”

Section: Localness Of Resources: a Grounded Architecture For A Fair A...mentioning

confidence: 99%

New vernacular construction: Environmental awareness and territorial inclusivity

Bocco Guarneri,

Habert

2024

IOP Conf. Ser.: Earth Environ. Sci.

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Studies on vernacular architecture document the built heritage; discuss its preservation; and sometimes focus on its sustainability, expressing admiration for the wisdom it embodies. Traditional buildings are exemplary in terms of embodied environmental impact, but can hardly be transformed into ‘sustainable’ buildings in the contemporary sense, for legal, cost, technical, or cultural reasons. Today’s lifestyles and expectations of comfort are very different from the original ones. Much appreciation of vernacular buildings derives from an aestheticising approach that emphasises appearance and craftsmanship. Such appreciation is tied to the perpetuation of ‘traditional’ forms but can lead to gentrify heritage and to design buildings that are unaffordable to local individuals and communities. We present not a literature review, but a theoretical proposal of a new vernacular, rooted in locality (origin of materials, socio-economic system, skills, etc., drawing inspiration from food self-sufficiency policies) and affordable by everyone – as it was the case with ‘traditional’ vernacular – but also able to respond to contemporary priorities such as counteracting climate change by opting for negative-embodied carbon materials, and meeting present expectations of comfort. Each of these criteria is discussed in detail. Within such constraints, we claim there would still much scope for creativity and innovation in terms of architectural design, behavioural choices, and policy adoption. The analysis of four recent buildings designed by outstanding contemporary architects in three continents completes the paper, substantiating very different examples in tune with the proposed approach. Open questions – including regarding the possibility of future identification of quantitative thresholds to describe ‘new vernacular’ buildings – are discussed in the conclusion.

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Section: Localness Of Resources: a Grounded Architecture For A Fair A...mentioning

confidence: 99%

New vernacular construction: Environmental awareness and territorial inclusivity

Bocco Guarneri,

Habert

2024

IOP Conf. Ser.: Earth Environ. Sci.

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“…Celentano et al (2019) applied a multi-scale approach considering the population in need of shelter to study the material choice and improve the reconstruction process. A different and recent perspective proposed by the same author (Celentano et al, 2020) attempted to look at the material selection in informal settlements through an integrated assessment. The authors explored the possible links between technical housing features, supply chains and knowledge Networks in disaster-relief situations flows, concluding that supply chain mapping can enhance the material selection.…”

Section: Supply Chain Supply Network and Sustainability In The Humanitarian Aid Contextmentioning

confidence: 99%

“…They aimed to understand how the selection of the right type of building materials can help achieve the "Sustainable Development Goals" and the alternative building materials to achieve long-lasting sustainability in the building environment. Omer and Takafumi (2020), citing from Celentano et al (2019Celentano et al ( , 2020, described the advantages of the use of local materials (e.g. reducing poverty and vulnerability).…”

Section: Supply Chain Supply Network and Sustainability In The Humanitarian Aid Contextmentioning

confidence: 99%

Understanding material and supplier networks in the construction of disaster-relief shelters: the feasibility of using social network analysis as a decision-making tool

Copping

Kuchai

Hattam

et al. 2021

JHLSCM

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PurposeUnderstanding the supply network of construction materials used to construct shelters in refugee camps, or during the reconstruction of communities, is important as it can reveal the intricate links between different stakeholders and the volumes and speeds of material flows to the end-user. Using social network analysis (SNA) enables another dimension to be analysed – the role of commonalities. This is likely to be particularly important when attempting to replace vernacular materials with higher-performing alternatives or when encouraging the use of non-vernacular methods. This paper aims to analyse the supply networks of four different disaster-relief situations.Design/methodology/approachData were collected from interviews with 272 displaced (or formally displaced) families in Afghanistan, Bangladesh, Nepal and Turkey, often in difficult conditions.FindingsThe results show that the form of the supply networks was highly influenced by the nature/cause of the initial displacement, the geographical location, the local availability of materials and the degree of support/advice given by aid agencies and or governments. In addition, it was found that SNA could be used to indicate which strategies might work in a particular context and which might not, thereby potentially speeding up the delivery of novel solutions.Research limitations/implicationsThis study represents the first attempt in theorising and empirically investigating supply networks using SNA in a post-disaster reconstruction context. It is suggested that future studies might map the up-stream supply chain to include manufacturers and higher-order, out of country, suppliers. This would provide a complete picture of the origins of all materials and components in the supply network.Originality/valueThis is original research, and it aims to produce new knowledge.

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“…The constructability challenges to slum upgrading projects and their consequential risks to the projects’ time and cost have been discussed in previous studies [ 3 , 22 ]. Accordingly, the upgrading of informal urban areas should be considered a sociotechnical process to realize a comprehensive perspective of its ongoing execution dynamics [ 23 ]. While relevant research contributions aimed at identifying the sources of constructability challenges associated with infrastructure upgrading projects in slum areas, there are limited attempts to overcome the aforementioned constructability challenges, especially in sanitation network upgrading projects [ 23 , 24 ].…”

Section: Introductionmentioning

confidence: 99%

Optimizing Sanitation Network Upgrading Projects in Slum Areas

2023

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Infrastructure upgrading projects are a key element in enhancing the livelihood of residents in slum areas. These projects face significant constructability challenges common to dense-urban construction coupled with the unique socioeconomic challenges of operating in slums. This research focuses on sanitation network upgrading projects in slum areas and proposes a novel methodology capable of (1) accounting for the unique constructability challenges for these projects, (2) accelerating the provision of sanitation services, and (3) optimizing construction decisions. The key contribution of this research to the body of knowledge is in developing a comprehensive construction planning framework capable of achieving these three objectives. The proposed framework focuses specifically on sewer lines upgrading within the larger sanitation networks upgrading projects. This framework consists of five main models that can guide planners in selecting the appropriate equipment sizes, trench system configuration, and optimal equipment routing, in addition to identifying all possible execution sequences along with the corresponding construction cost and duration of each sequence. Most notably, this framework proposes an approach to assess the serviceability of different construction plans measured by how fast sanitary services can be provided to slum dwellers. A multi-objective, genetic algorithms optimization model is developed to identify the optimal construction plans that accelerate the sanitary service provision to residents while minimizing construction costs. A real-world example is presented to demonstrate the model capabilities in optimizing construction plans.

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The informal city as a socio-technical system: Construction management and money distribution in the informal and upgraded communities of Bangkok

Cited by 7 publications

References 32 publications

New vernacular construction: Environmental awareness and territorial inclusivity

New vernacular construction: Environmental awareness and territorial inclusivity

Understanding material and supplier networks in the construction of disaster-relief shelters: the feasibility of using social network analysis as a decision-making tool

Optimizing Sanitation Network Upgrading Projects in Slum Areas

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