S. Sun, Q. Zhou, S. Lal, H. Xu, K. Goh, and Y. D. Wong, “Quantifying performance of sheltered link-way facility in Singapore using human-centric indicators,” International Journal of Urban Sustainable Development, Taylor & Francis, pp. 1–12, Dec. 2020, ISSN: 1946-3138, DOI: 10.1080/19463138.2020.1858422.