Xiongan’s Underground Backbone: The Technology Powering a City of the Future

Xiongan New Area, often hailed as China’s “city of the future,” is redefining urban development by prioritizing its underground infrastructure. Unlike traditional cities where utilities are often laid out piecemeal, Xiongan has adopted a revolutionary approach: building its underground systems first, creating a connected “nervous system” that supports a seamless urban experience above ground and in the cloud. This integrated network is a cornerstone of Xiongan’s ambitious “three-city” development vision, aiming to create a model for smart, sustainable urban living.

At the heart of this innovation is a vast network of shared utility tunnels. These corridors house water, power, telecommunications, and heating systems, moving away from the conventional practice of separate installations. This integrated design not only simplifies maintenance and upgrades but also drastically reduces the need for disruptive road excavations that plague many existing cities. With over 1,000 kilometers of pipelines already running within these tunnels, Xiongan is laying the groundwork for a city that is both efficient and resilient. The city’s commitment to this forward-thinking infrastructure was highlighted during the 2026 Global Governance Forum, where delegates gained insight into its cutting-edge design and technological integration.

The Integrated Utility Tunnel Network

Xiongan’s commitment to advanced urban planning is most evident in its extensive network of underground utility tunnels. This system is not merely a collection of pipes and cables; it’s a meticulously designed, integrated infrastructure designed for efficiency, longevity, and adaptability. The core principle guiding Xiongan’s development is “build underground first, above ground second.” This inversion of the typical urban development sequence allows for a robust foundation that anticipates future needs and minimizes disruption.

The utility tunnels serve as a central artery for all essential services. Instead of individual trenches for water mains, power lines, fiber optic cables, and heating pipes, Xiongan consolidates these into shared corridors. This approach offers several key advantages. Firstly, it significantly reduces the complexity and cost associated with laying and maintaining these services. Secondly, it creates a more organized and accessible underground environment, making repairs and upgrades far simpler. Imagine a city where a burst water pipe doesn’t necessitate digging up a busy street for days; instead, maintenance crews can access the issue directly within the dedicated tunnel.

By late 2025, over 1,000 kilometers of pipelines were already integrated into this underground system. This impressive scale underscores the project’s ambition to create a truly comprehensive utility backbone. The tunnels are designed with ample space and standardized access points, allowing for the seamless integration of new technologies and services as the city grows and evolves. This forward-looking design ensures that Xiongan’s infrastructure will remain relevant and functional for decades to come, avoiding the obsolescence that often affects older urban systems.

Digital Twin Technology and Real-Time Monitoring

A key differentiator for Xiongan’s underground infrastructure is its sophisticated use of digital twin technology and real-time monitoring. The 106-kilometer tunnel network, which had been operating continuously for over 1,500 days by late 2025, functions as a living digital replica of the physical system. This digital twin is not just a static model; it’s a dynamic, data-rich representation that allows for unprecedented levels of oversight and control.

Building Information Modeling (BIM) forms the foundation of this digital twin. BIM-based models provide detailed, three-dimensional representations of the tunnels and all the utilities within them. These models are integrated with a dense network of digital sensors embedded throughout the infrastructure. These sensors continuously collect vital data on various parameters, including water pressure, temperature, humidity, and gas levels. This real-time data stream is fed directly into a central control system, providing city managers with an immediate and comprehensive understanding of the underground network’s status.

This constant flow of information enables proactive management and rapid response to any potential issues. For instance, a sudden drop in water pressure or a spike in temperature could indicate a leak or a malfunction. The digital twin system can instantly flag these anomalies, allowing maintenance teams to investigate and address the problem before it escalates into a major disruption. This level of real-time monitoring is crucial for ensuring the reliability and safety of the city’s essential services. It transforms infrastructure management from a reactive process to a predictive and preventative one, a hallmark of a truly smart city.

Robotic Inspection and Maintenance

The integration of robotics into the maintenance and inspection of Xiongan’s underground utility tunnels represents a significant leap forward in operational efficiency and safety. Traditional methods of inspecting long stretches of tunnels often involve manual labor, which can be time-consuming, physically demanding, and potentially hazardous for human workers. Xiongan is replacing these methods with advanced robotic solutions, significantly improving the speed and effectiveness of these critical tasks.

Wei Ziren, an engineer at the State Grid Xiongan Power Supply Company, highlighted a compelling example of this technological shift. He noted that a 11.75-kilometer stretch of tunnel in the Zagang area, which previously required 22 hours of work for two human inspectors, can now be thoroughly inspected by just five Xiongan Lingxi quadruped robots in a mere three to four hours. These robots are equipped with advanced sensors and cameras, allowing them to navigate the complex tunnel environment and capture detailed data. Their ability to cover large distances quickly means that potential issues can be identified and addressed much faster than before.

The use of quadruped robots, similar to dogs, provides them with excellent mobility and stability, enabling them to traverse uneven terrain and access difficult-to-reach areas within the tunnels. This not only speeds up the inspection process but also enhances the thoroughness of the inspection. By automating these tasks, Xiongan is reducing the risk of human error and minimizing the exposure of personnel to potentially hazardous underground conditions. This robotic workforce is a critical component of the city’s strategy to maintain its advanced infrastructure efficiently and safely, ensuring the continuous operation of its vital utility systems.

Advanced Positioning and Smart Sensing

Ensuring precise location tracking and immediate detection of environmental changes are paramount for the effective management of Xiongan’s underground infrastructure. The city employs a sophisticated “Beidou + 5G” indoor positioning system, which extends the capabilities of satellite navigation into the subterranean environment. This system provides parking-level precision in areas like Rongdong, allowing for highly accurate tracking of assets and personnel within the underground network. This level of detail is essential for efficient operations, emergency response, and asset management.

Complementing the positioning system is a network of automated smart cameras and environmental sensors designed to detect anomalies instantly. These cameras are programmed to identify specific issues, such as standing water. If water levels exceed a predefined threshold, for example, 10 centimeters, the system triggers an immediate alert. This rapid detection capability is crucial for preventing potential damage to infrastructure and mitigating the impact of water-related issues.

The entire underground infrastructure is designed with resilience in mind, particularly concerning water management. It is integrated with the Baiyangdian watershed and engineered to withstand a 50-year flood standard within its operational zone. This robust design helps to reduce water runoff pressure on the surrounding environment and ensures that the infrastructure can handle significant water volumes. Furthermore, the system is designed with spare capacity, allowing for future upgrades and expansions without requiring the extensive and disruptive process of tearing up roads. This foresight in design and deployment of smart sensing technology ensures that Xiongan’s underground systems are not only functional but also highly adaptable and secure against environmental challenges.

The “City in the Cloud” Integration

Xiongan’s vision extends beyond the physical infrastructure, both above and below ground, to encompass a fully integrated “city in the cloud.” This digital layer is where data from the underground backbone, the aboveground city, and various other sources converges, enabling intelligent urban management and providing advanced services to residents and businesses. The seamless integration of physical and digital realms is a defining characteristic of this future-ready city.

The data collected from the underground utility tunnels, through sensors and robotic inspections, feeds directly into Xiongan’s overarching urban management platform. This platform acts as the central nervous system for the city, processing vast amounts of information to optimize operations, enhance public services, and inform decision-making. By analyzing patterns and trends in utility usage, environmental conditions, and traffic flow, city administrators can make data-driven decisions to improve efficiency and sustainability.

The “city in the cloud” concept also enables a wide range of smart services. This can include everything from intelligent traffic management systems that adapt to real-time conditions to personalized public services that cater to the needs of individual citizens. The advanced communication networks, including 5G, ensure that data can be transmitted and processed rapidly, allowing for near real-time responsiveness from city systems. This interconnectedness fosters a more dynamic and responsive urban environment, where technology works to enhance the quality of life for everyone.

Future-Proofing Urban Development

Xiongan New Area’s approach to underground infrastructure represents a paradigm shift in urban planning, focusing on creating a sustainable, efficient, and adaptable city for the future. The integrated utility tunnels, powered by digital twin technology, robotic maintenance, and smart sensing, form a resilient backbone that minimizes disruption and maximizes operational efficiency. This forward-thinking strategy ensures that Xiongan is not just building for today but is actively future-proofing its development against the challenges and opportunities of tomorrow.

The commitment to building underground first, and integrating advanced technologies like AI and robotics, sets a new standard for urban development globally. By prioritizing these foundational elements, Xiongan is creating a city that is not only technologically advanced but also environmentally conscious and highly livable. The “city in the cloud” integration further enhances this vision, creating a seamless connection between the physical and digital worlds, and paving the way for a truly intelligent and responsive urban ecosystem.

Conclusion

Xiongan’s innovative underground backbone is more than just a collection of pipes and wires; it’s a testament to a new era of urban development. By prioritizing integrated utility tunnels, leveraging digital twin technology for real-time monitoring, employing robotic solutions for maintenance, and integrating advanced positioning and sensing systems, Xiongan is building a city that is both highly functional and remarkably resilient. This meticulous planning and technological integration, extending to a comprehensive “city in the cloud” framework, positions Xiongan as a leading example of how cities can evolve to meet the demands of the 21st century and beyond, offering a blueprint for sustainable and intelligent urban living.