A Fine-Grain Multi-Indicator Analysis of the Urban Form of Five Informal Settlements in East Africa

Few studies have investigated the urban morphology of informal settlements at fine-grain level, limiting effective urban planning and policies targeting such areas. This study presents a high-resolution morphological analysis of five informal settlements located in central areas of major cities in E...

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Main Authors: Johan Mottelson, Alessandro Venerandi
Format: Article
Language:English
Published: MDPI AG 2020-07-01
Series:Urban Science
Subjects:
Online Access:https://www.mdpi.com/2413-8851/4/3/31
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author Johan Mottelson
Alessandro Venerandi
author_facet Johan Mottelson
Alessandro Venerandi
author_sort Johan Mottelson
collection DOAJ
description Few studies have investigated the urban morphology of informal settlements at fine-grain level, limiting effective urban planning and policies targeting such areas. This study presents a high-resolution morphological analysis of five informal settlements located in central areas of major cities in East Africa. The analysis is based on indicators of urban form, statistical comparison, and field interviews on household conditions. The method improves the replicability and increases the spatial granularity compared to previous studies. Outcomes show that all case studies are characterised by organic street layouts. Three settlements form a comparable group with denser urban fabrics (small block size, high coverage ratios, and small private spaces), while the remaining two cases have less compact forms. The field interviews show high rates of tenancy, overcrowding, and inadequate access to water and sanitation in the first group and low rates of these conditions in the second group. We suggest that these differences are partially an outcome of levels of informal land supply. We argue that decreased informal land supply leads to increased competition and higher prices of accommodation, leaving fewer household resources for infrastructure investments and consequent compromised livelihoods. Accordingly, we argue that some modes of informal urban development should be accepted in Sub-Saharan Africa.
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spelling doaj.art-8bfdcb6f535a43d790103f27de8fcbcb2023-11-20T06:16:39ZengMDPI AGUrban Science2413-88512020-07-01433110.3390/urbansci4030031A Fine-Grain Multi-Indicator Analysis of the Urban Form of Five Informal Settlements in East AfricaJohan Mottelson0Alessandro Venerandi1Institute of Architecture, Urbanism and Landscape, KADK—The Royal Danish Academy of Fine Arts—Schools of Architecture, Design and Conservation, Philip de Langes Allé 10, 1435 Copenhagen, DenmarkUMR 7300 ESPACE, University of Cote d’Azur, 98 Bd Herriot-BP 3209, 06200 Nice, FranceFew studies have investigated the urban morphology of informal settlements at fine-grain level, limiting effective urban planning and policies targeting such areas. This study presents a high-resolution morphological analysis of five informal settlements located in central areas of major cities in East Africa. The analysis is based on indicators of urban form, statistical comparison, and field interviews on household conditions. The method improves the replicability and increases the spatial granularity compared to previous studies. Outcomes show that all case studies are characterised by organic street layouts. Three settlements form a comparable group with denser urban fabrics (small block size, high coverage ratios, and small private spaces), while the remaining two cases have less compact forms. The field interviews show high rates of tenancy, overcrowding, and inadequate access to water and sanitation in the first group and low rates of these conditions in the second group. We suggest that these differences are partially an outcome of levels of informal land supply. We argue that decreased informal land supply leads to increased competition and higher prices of accommodation, leaving fewer household resources for infrastructure investments and consequent compromised livelihoods. Accordingly, we argue that some modes of informal urban development should be accepted in Sub-Saharan Africa.https://www.mdpi.com/2413-8851/4/3/31informal settlementsurban morphologyurban formmixed methodsSub-Saharan AfricaEast Africa
spellingShingle Johan Mottelson
Alessandro Venerandi
A Fine-Grain Multi-Indicator Analysis of the Urban Form of Five Informal Settlements in East Africa
Urban Science
informal settlements
urban morphology
urban form
mixed methods
Sub-Saharan Africa
East Africa
title A Fine-Grain Multi-Indicator Analysis of the Urban Form of Five Informal Settlements in East Africa
title_full A Fine-Grain Multi-Indicator Analysis of the Urban Form of Five Informal Settlements in East Africa
title_fullStr A Fine-Grain Multi-Indicator Analysis of the Urban Form of Five Informal Settlements in East Africa
title_full_unstemmed A Fine-Grain Multi-Indicator Analysis of the Urban Form of Five Informal Settlements in East Africa
title_short A Fine-Grain Multi-Indicator Analysis of the Urban Form of Five Informal Settlements in East Africa
title_sort fine grain multi indicator analysis of the urban form of five informal settlements in east africa
topic informal settlements
urban morphology
urban form
mixed methods
Sub-Saharan Africa
East Africa
url https://www.mdpi.com/2413-8851/4/3/31
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