MANZAR, the Scientific Journal of landscape
Scientific Quarterly Journal

Simulating the Amount of lighting and Visibility to the Outside of the Space based on Two Parameters: Position and Elongation of the Opening

https://doi.org/10.22034/manzar.2025.480475.2313
Volume 17, Issue 70
Spring 2025
Pages 44-51
MANZAR, the Scientific Journal of landscape

Document Type : Original Research Article

Authors

Alireza Goodarzi Ardekani 1
Yaghowb Peyvastehgar 2
Aliakbar Heidari 3
Ali Mehboodi 4

1 Ph.D. Student in Architecture, Department of Architecture, Yasuj Branch, Islamic Azad University, Yasuj, Iran.

2 Associate Professor of architecture and urban planning, Yasuj Branch, Islamic Azad University, Yasuj, Iran.

3 Associate Professor of Architecture, Faculty of Technical and Engineering, Yasouj University, Yasouj, Iran.

4 Assistant Professor of civil engineering, Faculty of Technical and Engineering Yasuj Branch, Islamic Azad University, Yasuj, Iran.

Abstract
Problem Statement: Visibility of the surrounding environment for users requires sufficient light within the space, enabling individuals to perform their activities without eye strain. Additionally, natural light significantly impacts human health. Accordingly, openings, as sources of light and thermal comfort, play a pivotal role in architecture. The quality of window design can substantially affect the quality of indoor lighting and the extent of visibility from the interior to the exterior.This research aims to investigate the role of the position and proportions of openings in determining the quality of indoor lighting and the degree of visibility from inside to outside the space.To evaluate the level of illumination, daylight indicators such as the Daylight Factor (DF), Glare Index (Glare), were utilized. For assessing the visibility to the outside, a View Analysis method was employed. A rectangular space measuring 5×3 meters with a single window of 1×1 meters on its southern façade, located in Shiraz, was considered as the base model. A total of 22 case studies with varying positions and proportions of openings were selected as the study samples. Following simulation and analysis of the cases using Honeybee and Ladybug plugins, the results were analyzed to determine the optimal position and proportions for openings on the facade.The findings indicate that utilizing horizontally elongated openings located centrally on the facade provides the optimal conditions for both outdoor visibility and indoor daylighting.

Keywords

Keywords Honeybee and Ladybug
Outdoor Visibility
Lighting
Window proportions
Window position
Subjects
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