Improving Interior-Design Decision-Making in Daylit Spaces: A Case Study

Improving Interior-Design Decision-Making in Daylit Spaces: A Case Study

Dalia Hafiz (Virginia Tech, USA)
Copyright: © 2017 |Pages: 21
DOI: 10.4018/978-1-5225-0666-9.ch020
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Abstract

Case study represents a principle methodology when an in-depth investigation is needed. It can be an alternative to traditional approaches to emphasize the researcher's perspective as central to the process. In an effort to allow for tool application purposefully selected architects and decision-makers were encouraged to apply a new decision-support tool; which that aims at enhancing decision-making though visual comfort evaluation. A selected case study space was used for application: a daylit museum located in Washington DC Metropolitan was examined for visual discomfort problems. Since museums are typically carefully lit because of the sensitivity of exhibits, this case study evaluated the daylighting condition in a museum using a series of illuminance field measurements, simulations and views experienced by occupants along a circulation path through the space. The case study also aimed at understanding how small design changes can affect visual comfort as a tactic for the case studies. A collaborative design effort was used in different stages of the case study.
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Immersive Case Study Method Overview

To allow for tool application a group of purposefully selected architects and decision-makers were encouraged to apply the new tool on a selected case study space: a daylit museum located in Washington DC Metropolitan was examined for visual discomfort problems that could affect the interior spaces connections. The study started by identifying primary visual discomfort zones. Illuminance and Luminance evaluation took place where high contrast was detected. Afterward, a series of design alternatives were proposed based on the initial evaluation results. For each alternative, visual comfort condition was compared with existing conditions to select an adequate alternative regarding glare controlling and visual comfort between spaces. Finally, the selected option was re-evaluated, and visual comfort conditions were compared with the as-built space conditions.

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