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Plot Syntax: A configurational approach to urban diversity
KTH, School of Architecture and the Built Environment (ABE), Architecture, Urban Design. (Spatial analysis and Design (SAD))
2005 (English)In: Proceedings, Fifth international space syntax symposium / [ed] van Nes, A., Delft: Techne Press, 2005Conference paper (Refereed)
Abstract [en]

More than forty years ago Jane Jacobs wrote the most influential book on urban development in the post war era.[1]Immensely clear-sighted and poignant in its criticism it was not, although often intuitively correct, as strong in theoretical depth in its suggestions for remedies. It can be said that one of her four main suggestions, the idea of short blocks and its importance for through movement and inhabited streets, has within space syntax research been lifted from the intuitive level of Jacobs to an analytical theory under the name of  “The theory of natural movement” (Hillier et al, 1993).

Another main suggestion of Jacobs was the idea of buildings of varying age and their importance for the diversity of uses within cities. In this paper a series of earlier papers are summarised and further developed, trying to also lift this suggestion to the level of an analytical theory, possibly called “The theory of natural diversity”. Marcus et. al. (1999) presented the theoretical foundation for such a theory where the importance to focus the spatial level of plot-structures in cities was argued. The plot-structure is in a direct way a representation of the distribution of landowners and thereby fundamental actors in the city, which act according to different strategies. Many actors can then lead to many strategies that in effect can lead to a higher diversity, it was argued. Marcus (2001) presented empirical support for such a theory, showing convincing correlation between the density of plots and the number of people renting space for economical activity and in extension the number of present lines of businesses.

In these empirical tests plot-density was measured as a density of plots either for an urban block or street. Thereby it was fundamentally a geographic description, aggregating values on a geographic unit that is there were no analyses of the distribution of space itself, the latter being the fundamental aim within space syntax (Koch 2005) A new GIS-based application, called the Place Syntax Tool, has opened the door to a morphological approach to the same issue, where the axial map developed within space syntax is instrumental (Ståhle et al, 2005). In effect what is measured is for example configurational densities that is densities that through the axial map take into account densities of other geographical units in the system.

In this paper it is used to measure and correlate plot- and diversity-densities, where the results supports the general theory suggested above not only for economical parameters but also social, such as age groups.

Jacobs, J., 1961, The death and life of great American cities.

Koch, D., 2004, Spatial systems as producers of meaning: the idea of knowledge in three public libraries, Trita-ARK; 2004.2, KTH, Stockholm.

Ståhle, A., 2005, Mer park i tätare stad, Trita-ARK; Trita-ARK; 2005:2, KTH, Stockholm

Place, publisher, year, edition, pages
Delft: Techne Press, 2005.
Keyword [en]
urban form, urban design, land-division, urban diversity, space syntax, theory of description
National Category
URN: urn:nbn:se:kth:diva-53314ISBN: 90-8594-002-8OAI: diva2:469869
Fifth international space syntax symposium
Qc 20120117Available from: 2012-01-17 Created: 2011-12-27 Last updated: 2012-01-17Bibliographically approved

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