This Harbor Research white paper argues that smart cities require a new generation of digital infrastructure built on open-access fiber, 5G, edge computing, and AI. Legacy networks cannot meet the scale, resilience, and equity needs of modern services. Ubiquity’s model emphasizes multi-tenant, open-access fiber to support ISPs, carriers, and city services, ensuring long-term scalability. By acting as “innovation orchestrators,” infrastructure investors can align ecosystems of partners to deliver new services, from real-time safety monitoring to sustainable energy grids. Such collaborative, flexible infrastructure fosters economic growth, equity, and future-ready smart communities.

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