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Measuring Surrounding Space to Assess the Pedestrian Visual Aperture Angle in the Urban Fabric: Toward a Kurtosis-Based Isovist Indicator

Part of the Lecture Notes in Geoinformation and Cartography book series (LNGC,volume 5)

Abstract

Partial isovist fields are useful methods to analyze the urban morphology taking into account the visual perception of the pedestrian. However, as previous studies involve a constant visual aperture angle all along the pathway, this chapter presents an adaptative method of aperture angular variation according to urban morphology properties. Aperture angle increasing, nearby a square or at roads junction, or decreasing within a canyon street should improve the microbehavior visual perception in our simulations. By showing that traditional isovist’s shape indicators are not well adapted to achieve urban environmental properties, the aim of this chapter is to present this new methodology based on a statistics standardized moment called kurtosis. Our results show that this method could be used to define a surrounding space typology, one step more toward the modeling of visual dynamics.

Keywords

  • Canyon Street
  • Aperture Angle
  • Urban Fabric
  • Radial Length
  • Urban Morphology

These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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  • DOI: 10.1007/978-3-642-19766-6_11
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Notes

  1. 1.

    This tour is available online on the Web site: http://www.nantes-tourisme.com/.

  2. 2.

    Available online on http://www.le-havre-tourism.com/.

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Acknowledgments

The AMBIOFLUX project is funded by CNRS and the French MEDDTL Ministry under PIRVE’s (Programme Interdisciplinaire de Recherche Ville et Environnement) contract #1004. Special thanks to Fernando González Cortés (Spain) for all the developments performed on the GearScape platform.

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Correspondence to Thomas Leduc .

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Leduc, T., Tourre, V., Woloszyn, P., Miguet, F. (2011). Measuring Surrounding Space to Assess the Pedestrian Visual Aperture Angle in the Urban Fabric: Toward a Kurtosis-Based Isovist Indicator. In: Popovich, V., Claramunt, C., Devogele, T., Schrenk, M., Korolenko, K. (eds) Information Fusion and Geographic Information Systems. Lecture Notes in Geoinformation and Cartography(), vol 5. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-19766-6_11

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