High-Altitude Platforms as an enabling technology for soft deployment of smart cities

Smart cities require resilient, high-speed connectivity to enable data-driven decision-making, real-time automation, and sustainable urban operations. Conventional terrestrial networks often face limitations in coverage, scalability, and cost, especially in rapidly expanding urban environments. High-Altitude Platforms (HAPs), including unmanned airships and solar-powered aircraft operating in the stratosphere, provide a flexible and innovative solution, delivering continuous, adaptable connectivity with minimal reliance on ground infrastructure. This paper highlights HAPs as an enabling technology for the soft, phased deployment of smart city services, allowing incremental implementation of urban innovations, cost-efficient scaling, and minimal disruption. Technical, economic, and regulatory feasibility are examined, showcasing HAPs’ transformative potential to gradually accelerate the evolution of resilient, future-ready urban ecosystems.