Visual connection to nature has been demonstrated to have a positive impact on attention restoration, stress reduction, and overall health and well-being. Inside buildings, windows are the primary means of providing a connection to the outdoors, and nature views even through a window may have similar effects on the occupants. Given that humans recognize environments through multi-sensory integration, a window view may also affect occupants' thermal perception. We assessed the influence of having a window with a view on thermal and emotional responses as well as on cognitive performance. We conducted a randomized crossover laboratory experiment with 86 participants, in spaces with and without windows. The chamber kept the air and window surface temperature at 28 °C, a slightly warm condition. The outcome measures consisted of subjective evaluations (e.g., thermal perception, emotion), skin temperature measurements and cognitive performance tests. In the space with versus without windows, the thermal sensation was significantly cooler (0.3 thermal sensation vote; equivalent to 0.74 °C lower), and 12 % more participants were thermally comfortable. Positive emotions (e.g., happy, satisfied) were higher and negative emotions (e.g., sad, drowsy) were lower for the participants in the window versus the windowless condition. Working memory and the ability to concentrate were higher for participants in the space with versus without windows, but there were no significant differences in short-term memory, planning, and creativity performance. Considering the multiple effects of window access, providing a window with a view in a workplace is important for the comfort, emotion, and working memory and concentration of occupants.factors that may differ when there are simultaneous inputs from other sensory systems (e.g., auditory, visual, tactile). Therefore, we must consider the possible interactions between visual and thermal perceptions. Ignoring the possible connections between these sensory systems could lead to ineffective design that could result in occupant discomfort or decreased performance, or even building performance issues such as energy waste.While it is not known conclusively whether occupants' thermal responses differ when there is visual connection to the outdoors, there is some prior research that suggests this could be important. Some evidence shows that a visual connection to the outdoors can have a positive impact on the occupants' overall perceptions of the built environment, leading to flexibility in their expectations [28]. For instance, if we take this general concept and hypothesize that having a view to the outdoors could help occupants increase their satisfaction with a wider indoor temperature range, then we could relax the temperature setpoints, which would then allow a reduction in building energy consumption [29][30][31][32]. A reasonable amount of variability in the acceptable range may even be preferable for occupants [3,14]. For designers, it would be important to define the relevant parameter...
The views that windows provide from inside a building affect human health and well-being. Although the window view is an important architectural element in the building, there is no established framework to guide architectural design. The literature is widely dispersed across different disciplinary fields, and there is a need to coalesce this information into a framework that can be applied into the building design process. Based on the literature, we present a framework for what constitutes "view quality." At the basis of our framework, we propose three primary variables: View Content (the assessment of visual features seen in the window view); View Access (the measure of how much of the view can be seen through the window from the occupant's position); and View Clarity (the assessment of how clear the view content appears in the window view when seen by an occupant). Each variable was thematically derived from different sources (e.g., daylighting standards, green certification systems, and scientific research studies). We describe the most important characteristics of each variable, and from our review of the literature, we provide an index that can measure the quality of a window view. We also provide design recommendations for integrating these three variables into the building process and identify knowledge gaps.
This paper proposes and evaluates an integrated workflow that simultaneously uses ventilation, thermal, and luminous autonomy for the assessment of passive design strategies, introducing a potential way to integrate these three metrics in the design process. We developed a new metric, ventilation autonomy, and assessed the advantages and limitations of applying the three autonomy metrics with building performance simulations in two climates. We developed a novel visualization to display the hourly and yearly environmental autonomy values. The results show that when we consider the three metrics together, designers may have contradicting design directions if trying to both mitigate the solar radiation and to utilize natural ventilation. The visualizations that categorize nine combinations of thermal and visual comfort along with ventilation autonomy are effective in showing the trade-offs among ventilation, thermal, and visual performance.
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