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

Dr. Moshood Olawale Fadeyi is a sustainable building professor with specialisation in sustainable building value delivery education at the Singapore Institute of Technology. He is also an architect, an indoor air quality expert, a chartered engineer (UK) – building services, a chartered construction manager (UK), a cartoonist, and a specialist adult educator. 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. He is architecture (BSc Arch and M.Arch.), building science (MSc.), and engineering (Ph.D.) trained. He is a member of the Chartered Institution of Building Services Engineers (UK), Chartered Institute of Building (UK), and American Society of Heating, Refrigerating, & Air-conditioning Engineers. He is well suited for architecture, interior design, building science, and architectural/building services engineering education. He has experience and expertise in developing undergraduate and postgraduate curricula to make students job-ready upon graduation. He is currently researching to develop an understanding that provides direction for educating learners on how to solve sustainable building value delivery problems. He engages in research for education because he wants to contribute to the human empowerment needed to improve industry practice and healthy living. Under the sustainable building value delivery theme, he focuses on indoor air quality value delivery and value-oriented productivity in sustainable building design, construction, and management practices. His research for education effort is enhanced by his fundamental knowledge and skillsets in building information modelling and other digital solutions adoption, design, critical, reflective, scientific, and lean thinking, fine art, oral and written communication, and storytelling. He has published more than 200 applied learning, discovery research, and literature review articles and creative works (fine art and creative writing) to develop an understanding of solving sustainable building value delivery problems. Companies and government agencies highly seek his expertise and leadership skills. He is the Editor, Author, and Cartoonist of Indoor Air Cartoon Journal – a creative and applied learning journal providing education on indoor air quality, with audiences from over 100 countries. He is a former National Taekwondo Champion in Singapore – Black Belt Middle-Heavy Weight category, 2006.

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