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Evidence-Based Quantitative Assessment for Geriatric Design Open Access


Other title
older adults
Type of item
Degree grantor
University of Alberta
Author or creator
Afifi, Mona
Supervisor and department
Ahmed Bouferguene (Campus Saint-Jean)
Mohamed Al-Hussein (Civil & Environmental Engineering)
Examining committee member and department
Sabah Alkass (University of sharjah)
Yasser Mohamed (Civil and Environmental Engineering)
Pierre Mertiny (Mechanical Engineering)
Carlos Cruz Noguez (Civil and Environmental Engineering)
Department of Civil and Environmental Engineering
Construction Engineering and Management
Date accepted
Graduation date
Doctor of Philosophy
Degree level
Poor design of indoor architectural spaces can contribute to an increased risk of falling for older adults. Thus, this research aims to provide an architectural design assessment system to integrate state-of-the-art evidence-based research into an assessment process by which to evaluate the risk of falling for older adults in residential dwellings. The developed assessment is implemented on bathroom design in order to improve the surrounding environment for older adults who are living independently in their homes. The methodology of this research is divided into five stages. In Stage 1, a systematic review is conducted to ensure that relevant and available literature is reviewed and analyzed. In Stage 2, bathroom design assessment is conducted based on the conceptual approach of the divide and conquer algorithm (DCA). For bathroom design, the DCA is divided into five design elements: bathtub, toilet, lavatory, lighting, and flooring. Each design element is divided into a number of features and then into scenarios that define its architectural specifications. In Stage 3, a rating system is developed for the proposed DCA of the bathroom elements and features; this rating system presents the degree to which each element and its features reduce the risk of falling. Equal interval scaling is adopted for the rating system to provide quantitative values for the ordinal-scaled scenarios developed in the previous stage. In Stage 4, a mathematical model is developed by which to calculate the rating number that reflects the risk of falling associated with the bathroom design. In Stage 5, characterization of the proposed assessment system is undertaken to identify the model output limits and ranges. In this research, a new concept of Block Schema (BS) is developed based on anthropometric considerations in order to provide a graphical representation of the surrounding free-zone associated with each design element.
Permission is hereby granted to the University of Alberta Libraries to reproduce single copies of this thesis and to lend or sell such copies for private, scholarly or scientific research purposes only. The author reserves all other publication and other rights in association with the copyright in the thesis and, except as herein before provided, neither the thesis nor any substantial portion thereof may be printed or otherwise reproduced in any material form whatsoever without the author's prior written permission.
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