Optimisation of sheltered walkways performance to mitigate wind-driven rain in Singapore


Sheltered walkways are common urban features in Singapore as pedestrians utilise them as pathways to public transportation locations in Singapore. In a tropical environment like Singapore, with high solar intensity and frequent and heavy rains, the walkways provide essential benefits in reducing users’ thermal discomfort and wetness. Of particular concern in the design of sheltered walkways in Singapore is the need for protection from wind-driven rain. This part of the pedestrian’s comfort is often neglected. Sheltered walkways are built with vertical, and 30° angled rainfall in mind. The considerations of the influence of wind are often neglected in the design of sheltered walkways, which results in a larger area of walkways receiving a high amount of rain penetration. To better evaluate the design of sheltered walkways, it is crucial to understand the pedestrian’s perspective and the correlation between wind and rain, and its effects on sheltered walkway design. Findings from the use of 3-Dimensional Computational Fluid Dynamics (CFD) simulations of wind flow and wind-driven rain for sheltered walkway designs are presented in this study. Additionally, a proposed microcontroller prototype, Arduino UNO, is built to validate the feasibility of the design solution. This study demonstrates the importance of considering wind-driven rain during the sheltered walkway design process.

Keywords: Shelter walkways, Wind-driven rain, Land Transport Authority, Computation fluid dynamics, Prototype design, Walk2Ride

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Cite as: “Guam YN and Fadeyi MO (2020). Optimisation of sheltered walkways performance to mitigate wind-driven rain in Singapore. Built Environment Applied Research Sharing #03, ISSUU Digital Publishing Platform.”

Published by Moshood Olawale Fadeyi

Assoc. Prof. Moshood Olawale Fadeyi is an Associate Professor of Sustainable Building Value Delivery Education at the Singapore Institute of Technology. He holds four university degrees, including a Ph.D. in Indoor Environment and Energy from the National University of Singapore and the Technical University of Denmark. Assoc. Prof. Fadeyi is architecture (BSc Arch and M.Arch.), building science (MSc.), and engineering (Ph.D.) trained. Assoc. Prof. Fadeyi is an architect, an indoor air quality expert, chartered engineer (UK) – building services, chartered construction manager (UK), cartoonist, and specialist adult educator. Assoc. Prof. Fadeyi is a member of the Chartered Institution of Building Services Engineers (UK), Chartered Institute of Building (UK), and American Society of Heating, Refrigerating, and Air-conditioning Engineers. Assoc. Prof. Fadeyi is well suited for architecture, interior design, building science, and architectural/building services engineering education. Assoc. Prof. Fadeyi has experience and expertise in developing undergraduate and postgraduate curricula to make students job-ready upon graduation. Since 2018, Assoc. Prof. Fadeyi focuses more on education. Assoc. Prof. Fadeyi's education practice includes research that aims to understand how students and industry professionals should be educated to develop the fundamental knowledge and skillsets for defining and solving a problem for value delivery instead of solving a problem that does not exist or providing a solution to a problem that exists. The theme of his education practice is sustainable building value delivery education. Under this theme, he has in-depth expertise in indoor air quality value delivery education and value-oriented productivity education (in sustainable design, construction, and facility management practices). Assoc. Prof. Fadeyi's education practice is enhanced by his fundamental knowledge and skillsets in design, critical, reflective, scientific, and lean thinking, fine art, oral and written communication, building information modelling and other digital solutions adoption, and storytelling. Assoc. Prof. Fadeyi has published more than 200 applied learning, discovery research, and literature review articles and creative works (fine art and creative writing) contributing to applied learning pedagogy enhancement and scientific evidence on new knowledge. Assoc. Prof. Fadeyi's expertise and leadership are highly sought after by companies and government agencies. Assoc. Prof. Fadeyi is the Editor, Author, and Cartoonist of Indoor Air Cartoon Journal – an applied learning journal providing education on indoor air quality, with audiences from over 100 countries. Assoc. Prof. Fadeyi is a former National Taekwondo Champion in Singapore - Black Belt Middle-Heavy Weight category, 2006.

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