SYSTEMIC RESILIENCE OF COMPLEX URBAN SYSTEMS ON TREES AND LEAVES

被引:34
|
作者
Salat, Serge [1 ]
Bourdic, Loeiz [1 ]
机构
[1] CSTB, Urban Morphol Lab, Paris, France
关键词
Urban resilience; Complex systems; Scale hierarchy; Urban systemic;
D O I
10.6092/1970-9870/918
中图分类号
TU98 [区域规划、城乡规划];
学科分类号
0814 ; 082803 ; 0833 ;
摘要
Two key paradigms emerge out of the variety of urban forms: certain cities resemble trees, others leaves. The structural difference between a tree and a leaf is huge: one is open, the other closed. Trees are entirely disconnected on a given scale: even if two twigs are spatially close, if they do not belong to the same branch, to go from one to the other implies moving down and then up all the hierarchy of branches. Leaves on the contrary are entirely connected on intermediary scales. The veins of a leaf are disconnected on the two larger scales but entirely connected on the two or three following intermediary scales before presenting tiny tree-like structures on the finest capillary scales. Urban system's structural resilience is highest when it is configured according to a scale free structure for its parts and for its connections. The spatial distribution and the intensity of connections in such a structure obeys a scale-free distribution. It states the frequency of an element's appearance and the span of a connection based on its hierarchic level: the smaller an element is, the more often it will be encountered in the system; the bigger an element is the rarer it will be. This fundamental law defines in itself the manner in which living organisms and things should be organized to optimize their access to energy, the use that they make of it, and their resilience. The history of urban planning has evolved from leaf-like to tree-like patterns, with a consequent loss of efficiency and resilience.
引用
收藏
页码:55 / 68
页数:14
相关论文
共 50 条
  • [31] Critical Factors for the Resilience of Complex Urban Public Spaces
    Xu, Hui
    Xue, Bin
    Tan, Yongtao
    ICCREM 2017: REAL ESTATE AND URBANIZATION, 2017, : 355 - 363
  • [32] Complex sports infrastructure and urban resilience: technologies and paradigms
    Allegri, Davide
    Vettori, Maria Pilar
    TECHNE-JOURNAL OF TECHNOLOGY FOR ARCHITECTURE AND ENVIRONMENT, 2018, 15 : 165 - 174
  • [33] Resilience modeling of complex urban public space system
    Xu H.
    Li Y.
    Deng N.
    Du L.
    Xitong Gongcheng Lilun yu Shijian/System Engineering Theory and Practice, 2022, 42 (07): : 1964 - 1978
  • [34] Key indicators for the resilience of complex urban public spaces
    Xu, Hui
    Xue, Bin
    JOURNAL OF BUILDING ENGINEERING, 2017, 12 : 306 - 313
  • [35] The Dynamics of Psycho-Social-Ecological Resilience in the Urban Environment: A Complex Adaptive Systems Theory Perspective
    Stroink, Mirella L.
    FRONTIERS IN SUSTAINABLE CITIES, 2020, 2
  • [37] Stress Tolerance to Plan for Resilience in Shrubs and Trees Towards Urban Colorado Areas
    Villanueva-Ruiz, Ezequiel
    Edmundson, Matt
    Lira, Dan
    HORTSCIENCE, 2021, 56 (09) : S214 - S214
  • [38] A resilience evaluation method considering functional and structural resilience of urban drainage systems
    Lu, Jiahui
    Liu, Jiahong
    Su, Xin
    URBAN WATER JOURNAL, 2025, 22 (04) : 372 - 384
  • [39] Modeling and Quantification of Resilience in Complex Engineering Systems
    Patriarca, Riccardo
    Hosseini, Seyedmohsen
    COMPLEXITY, 2019, 2019
  • [40] Resilience Decision-Making for Complex Systems
    Salomon, Julian
    Broggi, Matteo
    Kruse, Sebastian
    Weber, Stefan
    Beer, Michael
    ASCE-ASME JOURNAL OF RISK AND UNCERTAINTY IN ENGINEERING SYSTEMS PART B-MECHANICAL ENGINEERING, 2020, 6 (02):