The Laboratory of Integrated Performance in Design (LIPID) engages in questions of energy, health, comfort and perception and their interactions in the design of the built environment, with an overall strategic goal of fulfilling building occupant needs and a core focus area on daylighting strategies. Our work involves different perspectives and methods, ranging from the human scale to the building and even urban scale, based on both simulations and experimental work. LIPID aims to bring new models, methods, metrics, decision support platforms and physical demonstrators, to enrich the designer’s toolset and adopt a holistic and integrated approach in architecture.
Perceived interest and heart rate response to façade and daylight patterns in Virtual Reality
Proceedings of the ANFA 2018. 2018-09-21. Academy of Neuroscience for Architecture 2018 , La Jolla, California, USA , September 20-22, 2018.
This contribution introduces an experimental study aiming to provide concrete evidence on how façade and daylight pattern geometry can affect the emotional responses triggered by a space. The study was conducted in Virtual Reality (VR) where participants were exposed to 360° scenes of an interior space with three different façade patterns. Their subjective evaluations and heart rate were recorded. The results show a statistically significant effect of façade on the perception of space, as well as the mean heart rate change. Specifically, during exposure to a façade with an irregular pattern, participants rated the space as more interesting and their mean heart rate was lower, resulting to a greater mean heart rate change compared to the resting state, providing quantifiable measures of the impact of façade characteristics on human perception and physiological behavior.
Perceived and yet not seen: non-visual effects in daylit spaces
Shared behavioral outcomes. 2018-09-20. ANFA -The Academy of Neuroscience for Architecture , Salk Institute, La Jolla, CA , September 20-22 2018.
Findings from neuroscience are increasingly interwoven with architectural research (1,2). Understanding physiological responses to environmental stimuli in the built environment is critical when evaluating occupant health and wellbeing. Research in the field of photobiology has shown that lighting conditions can significantly alter our circadian rhythms through the non-visual system (3,4). This might result in acute changes regarding fatigue, vigilance or cognitive performance during our daily routines (6). Among the variety of architectural parameters of relevance to lighting design (e.g. orientation, material choice, environmental conditions…), the challenge is to determine which specific features, if any, have a significant influence on the physical properties of light initiating a neurobehavioral process.
Setting contextual life-cycle objectives in urban design: requirements for a decision-support method
International Conference for Sustainable Design of the Built Environment SDBE 2018. 2018-09-17. Second International Conference for Sustainable Design of the Built Environment (SDBE) , London, UK , September 12-13, 2018.
A variety of building labels and norms exist that set evermore-ambitious environmental and energy performance targets. In parallel, a growing number of building performance evaluation tools are adopting the life-cycle assessment (LCA) methodology to allow verifying if a project, based on its detailed description, reaches these targets. However, such norms and tools seem unsuited to the district scale, where environmental impact considerations are often left out of the urban planning and design process. There specifically appears to be a lack of decision-support instruments that can relate urban-scale performance targets to concrete design choices, taking into consideration the project’s specificities (e.g., climatic context), but without requesting design information that is not yet available. This paper presents the first phase of a collaborative research and development project, aiming at developing a novel decision-support method to integrate life-cycle objectives from the masterplanning stage. In this first phase, we investigate barriers and requirements from a practice-oriented perspective in the Swiss context by: (i) exploring urban-scale LCA-based methods and tools, and (ii) engaging with key stakeholders who hold complementary roles in a case study district project, which aims to be low-carbon. These exchanges are conducted in the form of a focus group and a questionnaire to gather qualitative and detailed information. Our findings notably highlight the mismatch between the ambitious objectives set by regulations and labels and the (lack of) means available to practitioners to support them in achieving these objectives. Specifications for a novel tool are derived from the practitioner’s feedback, as well as information on relevant design parameters and performance indicators.