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




Measuring Surrounding Space to Assess the Pedestrian Visual Aperture Angle in the Urban Fabric: Toward a Kurtosis-Based Isovist Indicator - Download this document for free, or read online. Document in PDF available to download.

1 CERMA - Centre de recherche méthodologique d-architecture 2 AAU - Ambiances architecturales et urbaines 3 ESO - Espaces et Sociétés

Abstract : Partial isovists 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 paper 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 micro-behavior visual perception in our simulations. With showing that traditional isovist-s shape indicators are not well adapted to achieve urban environmental properties, the aim of this paper 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 towards the modeling of visual dynamics.

Keywords : isovist function of radial distance statistics moment Kurtosis geoprocessing urban environmental visual properties





Author: Thomas Leduc - Vincent Tourre - Philippe Woloszyn - Francis Miguet -

Source: https://hal.archives-ouvertes.fr/



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