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

Abstract:

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 Fadeyi

Dr. Moshood Olawale Fadeyi, a creative professor, is an Associate Professor of Sustainable Building Value Delivery at the Singapore Institute of Technology. Dr. Fadeyi holds four university degrees, including a Ph.D. in Indoor Environment and Energy from the National University of Singapore and Technical University of Denmark. Dr. Fadeyi is architecture (BSc Arch and M.Arch.), building science (MSc.), and engineering (Ph.D.) trained. Dr. Fadeyi is an architect, an indoor air quality expert, chartered engineer (UK) – building services, chartered construction manager (UK), and specialist adult educator. Dr. 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. Currently, Dr. Fadeyi research aims to enhance applied learning pedagogy to make students job-ready upon graduation and improve industry and community practices. His applied learning pedagogy enhancement is informed by applied research, artistic research, and case study research grounded in design, critical, reflective, scientific, and lean thinking and digital solutions adoption. He has written more than 180 published scholarly and peer-reviewed articles in line with applied learning pedagogy enhancement and basic research. Dr. Fadeyi research and scholarship domain are in (i) value-oriented productivity in healthy and energy-efficient indoor air delivery, (ii) value-oriented productivity in design, construction, and facility management practices, and (iii) problem-based learning. Dr. Fadeyi researches to educate and solve industry and community-related problems. Dr. Fadeyi expertise and leadership are highly sought after by companies and government agencies. Dr. Fadeyi is the Editor, Author, and Cartoonist of Indoor Air Cartoon Journal – an online learning resource providing applied learning on IAQ with audiences from over 100 countries. Dr. Fadeyi is a former National Taekwondo Champion in Singapore - Black Belt Middle-Heavy Weight category, 2006.

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