Browsing by Author "Edgü, E."

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Open Access
Interpretations on movement and affordances in the built environment
(Western Norway University of Applied Sciences (HVL), 2022) Ünlü, Alper; Edgü, E.; Şalgamcioğlu, M. E.; Çanakçıoğlu, Nevşet Gül; Architecture; ÇANAKÇIOĞLU, Nevşet Gül; ÜNLÜ, Alper
Is it possible to discuss behaviour pertaining to movement and affordances depending on its potentials for social and physical reflections? To answer such a theoretical question, this study brings forward space syntax with its broader concepts and morphology studies in the building scale. Movement, whether it is guided or not, can be examined as a consequence of people’s interaction with the space, related to their activities of exploring, navigating, and also getting into a congruent relationship with it. This study aims to tackle three major discussions and their interrelationships. Firstly, affordance and syntactic relationship in relation to the nature of the movement through space; secondly the relationship between building programming and its behavioural occurrences, and finally presenting a dialectic discussion about human movement and building function through case studies of the authors’ previous works. Herein, the discussions on how movement occurs in spaces and how architecture and configurative conditions change the nature of the movement as well as how the behaviour patterns emerge in this framework are important. The main emphasis of this study is not only the configurational effects of the space on movement but also the various multi-layered movement that occur in space and change over time depending on behaviour settings. In the framework of the methodology, the presented case study sections on various building types reflect the outcomes of behavioural observations of various individuals’ movement which act as liberating outcomes where the discussions on copresence, encounter, and coawareness are crucial. Thus, it is aimed to gain insight into a comparative discussion between the behavioural and syntactic datasets related to typologies such as a hospital setting and an elderly institution where the movement is assumed to be more dictating as well as other typologies such as university buildings and exhibition halls where the movement is assumed to be more spontaneous. With this in-depth synthesis and discussion based on the previous case study findings of the researchers, it has been noticed that many variable situations can be observed in which behaviour settings are highly influential on movement regardless of the building program depending on people's age, professional roles, gender, and life cycles.
Open Access
Isometric measurands on perceived spaciousness: Exploring volumetric isovist
(Beijing JiaoTong University, 2019) Ünlü, Alper; Edgü, E.; Şalgamcıoğlu, M. E.; Çanakçioğlu, Nevşet Gül; Yılmaz, E. A.; Architecture; ÜNLÜ, Alper; ÇANAKÇIOĞLU, Nevşet Gül
The isovists are essential hypothetical structures for understanding the visibility in space. Regarding the perception of space, volumetric visibility presents a complicated geometrical volume that may be considered as a polyhedron obtained from the optical arrays of the vantage point. Despite the stated importance of volume, the preference for two-dimensional approach was later emphasized to be highly pragmatic by the prominent researchers of the field considering the non-applicable and complex data analysis of isovist radials and accordingly the polyhedron structure within a three dimensional medium. Through an experimental case study, the research explores the extension of syntactic and semantic parameters of visual perception and helps to understand the dynamic nature of the volumetric visibility. Research uses semantic and syntactic data analyses based on the fixed vantage points in a medium to expose the differences in the spatial experience of users. Syntactic data obtained from a modified real environment, and semantic data obtained from the vantage point scenes derived from this environment are correlated. The research is based on four founding subjects of study, which are considered as the main factors in understanding the perception of spaciousness and openness. These factors are defined as isovist parameters, graph parameters, radial data parameters, and volumetric parameters. The selected environment of the case study is a part of a university building. For this study, ground and first floors are abstracted and simplified in the experiment’s virtual environment. Selected 16 vantage points from two floors had diverse variations in width, length and height, which are likely to cause different perceived spaciousness levels. Semantic evaluation is examined through an experimental research with 90 students from two different universities. The participants are asked to evaluate the feeling of spaciousness and openness in the virtual medium of 16 vantage points on a 5-point Likert type scale questionnaire. The last step of the methodology is composed of multiple regression analyses showing the effects of syntactic and spatial determinants of the virtual scenes and one-way-ANOVA analyses showing the effects of spatial experiences related to familiarity and educational background of the sample groups. Results of the research indicated that isovist area is highly correlated with spaciousness, meaning that wider spaces are perceived as more spacious. Higher connectivity values, having more possibility of expansions, lead to an idea of perceptual spaciousness. Volumetric visibility indicates that perception of spaciousness is directly related to the z-dimension. The amount of natural light in space has a positive effect on the participants’ semantic evaluations. The infinity value increases the amount of natural light, giving a feeling of wideness and providing a visual access to beyond. Previous experiences of students, familiarity with the space and educational background are highly effective on the perception of openness. In this research the psychological outcomes of visual perception through concepts of spaciousness and openness with three dimensional geometry of visibility are combined. By the help of novel methods of calculating volume, natural light and infinity values, the research presents a quantifiable data of comparison of semantic assessments with syntactic ones.