In ever-expanding urban areas, a growing demand of utility services is commensurate with an increased need for more cost-effective and minimally disruptive installation, inspection, repair, rehabilitation, and replacement of piping and cables that are laid underground. Multi-Purpose Utility Tunnels: A Viable Solution for Sustainable, Resilient, and Smart Cities offers a sought-after overview of this not-yet-fully appreciated solution for subsurface infrastructure organization and its critical advantages in keeping with present-day concerns linked with the sustainability, resilience, and smartness of the built environment. The volume's up-to-date knowledge, which thoroughly encompasses planning, design, construction, operations, and management, highlights efficient decision-making strategies, essential throughout the entire lifecycle of MUTs. To benefit readers both in academia and industry, the contents have been subdivided into sections, proffering a logically structured flow aimed at quickly getting them up to speed or providing them with answers to key questions. The authors also touch upon cost-specific facets and regulatory frameworks, to then conclude this timely investigation with a review of utilidor projects from across the globe to discuss challenges, lessons learnt, and other details of practical value.