A review of experimental informal urbanism initiatives and their implications for sub-Saharan Africa's sustainable cities’ agenda

Quaye, Isaac; Amponsah, Owusu; Azunre, Gideon Abagna; Takyi, Stephen Appiah; Braimah, Imoro

doi:10.1016/j.scs.2022.103938

Cited by 13 publications

(3 citation statements)

References 53 publications

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“…The dominance of Western approaches to urban development and innovation has largely failed to deliver sustainability, and we need alternatives. The cities facing the greatest challenges are good places to look for new approaches to innovation that work in practice, such as experimental informal urbanism whereby residents in informal settlements develop solutions in situ (Quaye et al, 2022).…”

Section: Conclusion and Directionsmentioning

confidence: 99%

Introduction to A Research Agenda for Sustainable Cities and Communities

McCormick,

Evans,

Voytenko Palgan

et al. 2023

A Research Agenda for Sustainable Cities and Communities

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Section: Conclusion and Directionsmentioning

confidence: 99%

Introduction to A Research Agenda for Sustainable Cities and Communities

McCormick,

Evans,

Voytenko Palgan

et al. 2023

A Research Agenda for Sustainable Cities and Communities

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“…Las ciudades sustentables o sostenible tienen principios esenciales como la utilización de energía eléctrica, el desplazamiento de los vehículos, los espacios verdes y la diversidad de la flora, la participación de los ciudadanos, la construcción de viviendas eco-amigables, la administración de recursos de forma sustentable y la utilización de tecnología avanzada y soluciones inteligentes para mejorar la administración de la ciudad y aumentar la calidad de vida de los habitantes [1], [5].…”

Section: Introductionunclassified

Innovative design of a plastic shredder for sustainable cities

Anticona Valderrama,

Garcia Alvarez,

Mendoza Damas

et al. 2023

Proceedings of the 3rd LACCEI International Multiconference on Entrepreneurship, Innovation and Regional Development (LEIRD 202

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Plastic waste is a current problem for which it generates environmental pollution, which is why an innovative design of a plastic crusher for sustainable cities was presented, since it is important to develop circular economies and reuse plastic waste. The 3D model of an axis was produced with SolidWorks. Static and high-cycling fatigue analyzes were performed in this study in ANSYS Workbench software to validate the proposed design. During the grinding operation, the grinding tool is subjected to cyclical loads that vary over time, through finite element analysis. The results of the ANSYS finite element analysis (FEA) of the crushing tool had a maximum stress of 46.3 MPa in the static analysis. and a safety factor of 5.4, however, in the high cycle fatigue analysis a lower safety factor was obtained than in comparison with the static analysis, with a value of 1.86, taking into account that the fatigue resistance limit is lower than the yield strength in the static regime, since the Marín factors were considered in the fatigue regime. It is concluded that the grindingtool is validated pre-experimentally, so this guarantees that the machine will work correctly and safely.

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“…

In the cities of French-speaking sub-Saharan Africa, access to drinking water is at the forefront (Baron, 2006) and many lack this resource (Quaye et al, 2022). The freshwater contained in the groundwater represents 0.3% of the quantity of water on Earth (Gleick, 1996) but human access to this water resource is very resource intensive (Mallongi et al, 2019).

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mentioning

confidence: 99%

Study of the physico-chemical and bacteriological quality of water intended for consumption in the town of Gagal, southwestern Chad

Mahamat Nour,

Abderamane,

Idriss

et al. 2023

JANS

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The city of Gagal suffers from insufficient drinking water, and the population turns to surface water, wells and drillings without guarantee of quality. In order to characterize the hydrogeochemical and bacteriological properties of the waters of the aquifer system in the city of Gagal, to contribute to improving its knowledge, field campaigns were undertaken to sample the groundwater.The present study focuses on the hydrogeochemical and bacteriological characterization of drinking water in Gagal, southwestern Chad. The methodology consisted of acquiring existing data, a field campaign, and a chemical and bacteriological analysis of the water in the laboratory. The results of the physicochemical analyses revealed that the values of the parameters such as conductivity, pH (5.23), Ca²⁺ (26.11 mg/L), Mg²⁺(5.14 mg/L), Na⁺(3.54 mg/L), K⁺(1.34 mg/L), HCO3-(81.74 mg/L), Cl-(11.77 mg/L), SO4-(1.94 mg/L), and NO3- (8.70 mg/L) conformed to the WHO potability standards. Piper's diagram showed calcic and magnesian bicarbonate facies represented by 75%; and calcic and magnesian sulfate chloride facies in 25% of the analyzed waters. The bacteriological (Total coliforms (0 to more than 135,200 CFU/100 ml), Escherichia coli (0 and 14,400 CFU/100 ml), faecal enterococci (0 and 4600 CFU/100 ml)) study confirmed that the water from the wells and boreholes showed pollution of bacterial origin. Using these waters may endanger the populations with the risks of hydric diseases.

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A review of experimental informal urbanism initiatives and their implications for sub-Saharan Africa's sustainable cities’ agenda

Cited by 13 publications

References 53 publications

Introduction to A Research Agenda for Sustainable Cities and Communities

Introduction to A Research Agenda for Sustainable Cities and Communities

Innovative design of a plastic shredder for sustainable cities

Study of the physico-chemical and bacteriological quality of water intended for consumption in the town of Gagal, southwestern Chad

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