YILDIZ TECHNICAL UNIVERSITY FACULTY OF ARCHITECTURE E-JOURNAL

E-ISSN 1309-6915
Volume: 17 Issue: 2
Year: 2022

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Investigating Mass-Space System to Reach an Optimal Model for Analyzing Visibility Among Buildings and Public Open Spaces Using Three-Dimensional Isovist [Megaron]
Megaron. Ahead of Print: MEGARON-33410 | DOI: 10.14744/megaron.2022.33410  

Investigating Mass-Space System to Reach an Optimal Model for Analyzing Visibility Among Buildings and Public Open Spaces Using Three-Dimensional Isovist

Amir Shakibamanesh, Mahdiyeh Kokabi
Department Of Urban Planning And Design, University Of Art, Tehran, Iran.

In recent years, the quality of view in public spaces and buildings has received a lot of attention from urban designers to improve the quality of the human living environment in cities. This study was conducted to achieve an optimal model of visibility among buildings and public spaces. To this end, three indices, i.e., "view from public space to the surrounding space", "view from the building to adjacent buildings", and "view from the building to open space”, were investigated, taking into account the physical-spatial structure and Visual privacy. Therefore, in this study, three-dimensional isovist - as a technique for representing physical space and analyzing view – was used to assess the visibility of small-scale urban areas quantitatively. First, physical qualities affecting view were divided into three categories: "spatial layers", "properties of mass-space components" and "spatial qualities". Next, spatial qualities were explained to evaluate, select, and relate them to each of the isovist variables. Isovist variables effective in measuring the three research indices were identified using the Delphi technique and six variables of volume, area, perimeter, obstruction, length of minimum, and maximum line of sights in three sites the north of Persian Gulf Lake in Tehran were evaluated. The results showed that variables such as severe spatial enclosure, high building density, the small distance among blocks, block shape, height distribution of buildings, and uniform skyline increased the visibility of buildings, resulting in weak Visual privacy and reduced view to open space from inside buildings and public spaces. Finally, using the sum of quantitative visual values, the site with the most favorable conditions regarding optimal visibility was identified, and the integrated model of measuring optimal visibility was introduced.

Keywords: Mass-Space System, Optimal Visibility Model, 3D Isovist




Corresponding Author: Amir Shakibamanesh, Iran


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