Safe city, sound life: Resilient cities driven by NQI and BDS

With the in-depth development of global urbanization, cities are moving toward refined and high-quality development, yet they face three categories of safety risks: natural and environmental, facility and accident, and social and public health risks, demonstrating the characteristics of a “risk society and brittle city.” Urban governance also suffers from pain points such as data silos, data distortion, and heavy pressure at the grassroots level. It is necessary to establish an urban resilient safety evaluation standard system and promote the transformation of governance toward pre-event prevention. The national quality infrastructure (NQI), through its three core elements of standards, metrology, and conformity assessment, provides technical support for the identification, quantification, and control of urban safety risks, enabling the shift of governance from “passive response” to “proactive prevention and control.” The Beidou Navigation Satellite System (BDS), relying on the high-precision spatiotemporal service capability of multi-level base station collaboration, integrates deeply with NQI to build a technical system that covers standard formulation, metrological traceability, and data cross-validation. Relying on the BDS-driven NQI, an urban safety risk comprehensive monitoring and early warning platform was built, which integrates multi-source data, provides diversified safety services and decision support, and has been successfully applied in multiple scenarios. The integration of NQI and BDS can strengthen technological and model innovation in urban safety governance, promote the value transformation of data assets, facilitate the modernization of urban governance, and ultimately achieve the goal of “safe city, sound life.”