Person: ÖZBİL TORUN, Ayşe
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Ayşe
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ÖZBİL TORUN
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Conference ObjectPublication Metadata only The effects of perceived and objective measures of home-environment on transportation and recreational walking among children(2015) Yeşiltepe, D.; Torun, Ayşe Özbil; Interior Architecture and Environmental Design; ÖZBİL TORUN, AyşeThis study explores the relative association of objective and perceived environmental factors with recreational and transportation walking behaviour. Randomly selected parents of students (ages 12-14) at 10 elementary schools (N=1000) located in Istanbul, Turkey, completed questionnaires about their socio-demographic characteristics, neighbourhood environment, and their children’s physical activity. Home-environments (400 and 800 meter buffers) were evaluated through GIS-based land-use, segment-based street connectivity measures, and street-level topography. In addition, detailed field surveys related to pedestrian quality attributes were conducted within home-environments. Logistic regression was used to investigate the relationships between recreation and transportation-related walking and objective and perceived measures of the built form. Findings of the study indicate that both types of walking behaviour are associated with different perceived and objective environmental attributes. More importantly, preliminary results suggest street network connectivity measured at the segment-level is significantly associated with walking behaviours. Thus, it can be argued that modifications to the home-environment may help change hence children’s walking behaviour.ArticlePublication Metadata only Pedestrian route choice by elementary school students: the role of street network configuration and pedestrian quality attributes in walking to school(Informa, 2016) Torun, Ayşe Özbil; Argin, G.; Yesiltepe, D.; Interior Architecture and Environmental Design; ÖZBİL TORUN, AyşeThis study examines the extent to which street network configuration is associated with path selection by pedestrians. The aim is to better understand how the spatial layout of the street network affects pedestrian route choice behavior, controlling for pedestrian quality attributes. Randomly selected 6th, 7th, and 8th grade students (ages 12–14) from 15 elementary schools in Istanbul, Turkey were asked to draw their routes walking between home and school. Preliminary findings suggest that when all areas are merged into a single set, global choice, which measures the degree to which a street segment is located in between the shortest paths connecting all pairs of origins and destinations, and metric reach, which measures the street length that is accessible within a walking range, are significantly associated with route selection jointly with the distance to school, sidewalk width, distribution of pedestrians as well as the number of non-residential land-uses. However, directional reach, which measures the extent to which streets are sinuous or aligned, appears to be a strong correlate of route selection in the analysis of individual areas. From a design policy point of view, designing better connected street networks with reduced directional distance between home and school might serve as supporting navigation choices and walking behavior.Conference ObjectPublication Metadata only The effects of street network configuration and street-level urban design on route choice behaviour: an analysis of elementary school students walking to/from school in istanbul(Instituto Superior Tecnico, Departamento de Engenharia Civil, Arquitetura e Georrecursos, 2017) Argın, G.; Yesiltepe, D.; Torun, Ayşe Özbil; Interior Architecture and Environmental Design; Heitor, T.; Serra, M.; Silva, J. P.; Bacharel, M.; Silva, L. C. da; ÖZBİL TORUN, AyşeThis paper explores the association between the built environment, measured through street network configuration and street-level urban design, and route choice of children walking to/from school. The aim is to understand the extent to which student's actual route selections correspond with metric shortest routes and the role of spatial factors in explaining route choice in utilitarian walking. Within this context, randomly selected students (ages 12-14) from five elementary schools in Istanbul, Turkey, were asked to draw their routes walking between home and school. Each student's route choice was modelled within a GIS database and metrically shortest routes between origins and destinations were identified by using the 'network analyst' tool. Street network configuration of the entire system was evaluated by using angular segment integration and choice analyses implemented in Depthmap as well as metric and directional reach implemented in GIS. Street-level urban design characteristics of the streets, including ground floor attractions, prevalence and width of sidewalks, street-level topography, street width (indicating street hierarchy), and existence of signalling/crossings, were evaluated through detailed field surveys and high quality satellite images. The preliminary findings of this study imply that the configuration measures of street network may prove to be important variables for the description and modulation of human spatial behaviour in urban environments. More importantly, directional accessibility appears to play an important role as metric accessibility in route choice behaviour. However; the detailed analysis of selected routes indicates that the amount of ground floor attractions as well as certain streetlevel urban design qualities, such as sidewalk width, seem to be related to the preference of certain streets over and above others. This study contributes to the literature by broadening our understanding of the environmental attributes associated with children's navigation choices in utilitarian walking. Findings augment the knowledgebase that supports urban navigation by emphasizing the contribution of the spatial structure of the street network and the impacts of urban design qualities of the street environment.ArticlePublication Metadata only Modeling walkability: The efects of street design, street-network confguration and land-use on pedestrian movement(ITU Journal of Faculty of Architecture, 2015-11) Torun, Ayşe Özbil; Yeşiltepe, D.; Argın, G.; Interior Architecture and Environmental Design; ÖZBİL TORUN, AyşeTis study explores the relative association of street design –local qualities of street environment–, street network confguration –spatial structure of the urban grid–, and land use patterns with the distribution of pedestrian fows. Te aim is to better understand the extent to which systematically measured street-level urban design qualities and objectively measured street network confguration are related to pedestrian movement, controlling for land use. 20 2kmx2km areas in Istanbul were studied in order to establish correlations between street design, street confguration and densities of pedestrian movement. Pedestrian data were collected on selected road segments within the areas. Same road segments were characterized through detailed feld-surveys in terms of aesthetic qualities, signage, sidewalk design, pedestrian crossings/trafc lights, ground foor uses as well as GIS-based hosing plot-level (parcel-level) land use density and street-level topography. Street network confgurations within the areas were evaluated using angular segment analysis (Integration and Choice) as well as two segment-based connectivity measures (Metric and Directional Reach). Linear models were developed to investigate the relationships among street design, street network confguration, land use, and walking behavior. Tis study contributes to the literature by ofering insights into the comparative roles of urban design qualities of the street environment and street network layout on pedestrian movement. Preliminary fndings imply that notwithstanding the signifcance of certain aspects of the street environment that relate to local urban design qualities, the overall spatial configuration of street network may prove to be a signifcant variable for the description and modulation of pedestrian movement.