A systemic approach of urban resilience: power laws and urban growth patterns

Resilient historical cities are the product of evolution and they have been shaped by incremental adaptation to fluctuations and by shocks of various magnitudes. Adaptive complex cities operate as systems and they obey certain universal laws: the distribution of elements reflects organic growth proc...

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Main Author: Serge Salat
Format: Article
Language:English
Published: Taylor & Francis Group 2017-05-01
Series:International Journal of Urban Sustainable Development
Subjects:
Online Access:http://dx.doi.org/10.1080/19463138.2016.1277227
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author Serge Salat
author_facet Serge Salat
author_sort Serge Salat
collection DOAJ
description Resilient historical cities are the product of evolution and they have been shaped by incremental adaptation to fluctuations and by shocks of various magnitudes. Adaptive complex cities operate as systems and they obey certain universal laws: the distribution of elements reflects organic growth processes, such as the ones described by allometric growth and inverse power laws in biology. Their elements and connections organization does not obey Gaussian laws (concentration around averages). They are not aggregates of inert elements but integrated highly differentiated self-organized wholes. They exhibit a hierarchical configurational order characteristic of complex adaptive systems, with nested subsystems ordered in a hierarchy of scales united by mathematical regularities. Planners need to be aware of these laws of adaptive complexity and plan with rather than counter to these emergent properties in order to enhance resilience. Understanding the universality of complex systems order, which characterizes living systems, and which modernist city planning has violated, would allow planning more resilient cities.
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spelling doaj.art-7d1aab2eb9a24c928e40fe7e01db3e652023-09-21T15:17:06ZengTaylor & Francis GroupInternational Journal of Urban Sustainable Development1946-31381946-31462017-05-019210713510.1080/19463138.2016.12772271277227A systemic approach of urban resilience: power laws and urban growth patternsSerge Salat0Urban Morphology and Complex Systems InstituteResilient historical cities are the product of evolution and they have been shaped by incremental adaptation to fluctuations and by shocks of various magnitudes. Adaptive complex cities operate as systems and they obey certain universal laws: the distribution of elements reflects organic growth processes, such as the ones described by allometric growth and inverse power laws in biology. Their elements and connections organization does not obey Gaussian laws (concentration around averages). They are not aggregates of inert elements but integrated highly differentiated self-organized wholes. They exhibit a hierarchical configurational order characteristic of complex adaptive systems, with nested subsystems ordered in a hierarchy of scales united by mathematical regularities. Planners need to be aware of these laws of adaptive complexity and plan with rather than counter to these emergent properties in order to enhance resilience. Understanding the universality of complex systems order, which characterizes living systems, and which modernist city planning has violated, would allow planning more resilient cities.http://dx.doi.org/10.1080/19463138.2016.1277227urban planningresilienceadaptive complex systemsnetworkspower laws
spellingShingle Serge Salat
A systemic approach of urban resilience: power laws and urban growth patterns
International Journal of Urban Sustainable Development
urban planning
resilience
adaptive complex systems
networks
power laws
title A systemic approach of urban resilience: power laws and urban growth patterns
title_full A systemic approach of urban resilience: power laws and urban growth patterns
title_fullStr A systemic approach of urban resilience: power laws and urban growth patterns
title_full_unstemmed A systemic approach of urban resilience: power laws and urban growth patterns
title_short A systemic approach of urban resilience: power laws and urban growth patterns
title_sort systemic approach of urban resilience power laws and urban growth patterns
topic urban planning
resilience
adaptive complex systems
networks
power laws
url http://dx.doi.org/10.1080/19463138.2016.1277227
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