Montreal's Underground City 

The Underground city in Montreal, or the RESO as it’s also known, is one of the world’s most expansive indoor pedestrian networks. It’s a complex network of corridors, both underground and above ground, that connect various parts of downtown. The project is a testament to the complexities and evolution of urban planning, and especially in mobility planning, highlighting the balance needed between efficiency and the embodied experience of our environments.
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References:
Besner, J. (2017). Cities think underground-Underground space (also) for people. Procedia engineering, 209, 49-55.
Chatoney, B. P. (2019). A Tale of Two Tunnels: Exploring the Design and Cultural Differences Between the Houston Tunnel System and Reso (Underground City, Montreal).
El-Geneidy, A., Kastelberger, L., & Abdelhamid, H. T. (2011). Montréal's roots: Exploring the growth of Montréal's Indoor City. Journal of Transport and Land use, 4(2), 33-46.
La Place Ville-Marie sous différents angles, 1977, BAnQ Vieux-Montréal, Fonds Ministère de la Culture et des Communications, (06M,E6,S7,SS1,D772992-773001), Henri Rémillard.
Ouverture de stations du Métro de Montréal, 1966-1978, BAnQ Vieux-Montréal, Fonds La Presse, (06M,P833,S4,D1474), Photographe non identifié.
Radio-Canada. (n.d.). Montréal: Une ville souterraine? [Video]. Retrieved from ici.radio-canada.ca/info/vide...
Sim, D. (2019). Soft City. Routledge.
Ville de Montréal. (n.d.). RESO : le réseau souterrain de Montréal. Retrieved from montreal.ca/articles/reso-le-...
Zacharias, J. (2015). Underground pedestrian trips-trip generation, spatial distribution and activities in the Montréal underground. Tunnelling and Underground Space Technology, 46, 46-51.