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supported by the sibling associations ACADIA, CAADRIA, eCAADe, SIGraDi, ASCAAD and CAAD futures

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id sigradi2018_1642
authors Pereira Bezerra de Melo Junior, Silvio; Canuto da Silva, Robson
year 2018
title Aplicability of 2D and 3D isovists and visibility graph analysis for evaluating urban vulnerability to crime: the case of Boa Viagem, in Recife
source SIGraDi 2018 [Proceedings of the 22nd Conference of the Iberoamerican Society of Digital Graphics - ISSN: 2318-6968] Brazil, São Carlos 7 - 9 November 2018, pp. 308-315
summary This work aims to investigate the applicability of 2D and 3D isovists, as well as Visibility Graph Analysis (VGA), for evaluating urban vulnerability to crime. The methodology is based on correlations between number of crime occurrences and measurements of 2D and 3D isovists, and mean values of visual integration (VGA). The 2D isovists were produced through DeCoding Spaces Toolbox for Grasshopper and the 3D isovists were generated by using algorithms within Rhinoceros and Grasshopper. VGA maps were elaborated within DepthmapX. For this study, were selected nine street segments of Boa Viagem, located in Recife-PE, a neighbourhood which is known for high rates of robberies. Although the number of samples is reduced, the results suggest that criminals prefer much more visually integrated spaces with low occlusivity and fewer spatial cavities.
keywords Criminality; isovist; parametric; urban space; space syntax
series SIGraDi
email silviomeloj@gmail.com
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100%; open Monteiro, Circe Maria Gama; Cavalcanti, Rafaella dos Santos (2015) Find in CUMINCAD Spatial profile of urban segments: Assessing place vulnerability to crime , INTERNATIONAL SPACE SYNTAX SYMPOSIUM, 10., 2015, Londres. Proceedings... . Londres: Sss, 2015. p. 1 -17. Retrieved from: http://www.sss10.bartlett.ucl.ac.uk/wp-content/uploads/2015/07/SSS10_Proceedings_136.pdf

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100%; open Varoudis, Tasos; Penn, Alan (2015) Find in CUMINCAD Visibility, accessibility and beyond: Next generation visibility graph analysis , INTERNATIONAL SPACE SYNTAX SYMPOSIUM, 10., Londres. Proceedings... . Londres: Ucl, 2015. p. 1 -13. Retrieved from:

100%; open Zelinka, Al; Brennan, Dean (2000) Find in CUMINCAD Safescape: Creating Safer, More Livable Communities Through Planning & Design , New York: Planners Pr.

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