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16METRO RAIL NEWS -AUGUST 2025 www.metrorailnews.in 5G RAILWAYS: REVOLUTIONISING CONNECTIVITY, SAFETY, AND OPERATIONS IN INDIA'S RAIL NETWORKAbstractThe pace of infrastructure growth in developing countries like India has been high in recent years. To complement this expansion, digital technologies have emerged as a cornerstone to support multiple sectors such as railways and banking. In India, the expansion of railway infrastructure aims to meet the nation%u2019s increasing transport and logistics demands. However, managing the world%u2019s fourth-largest railway network and the third-largest metro system poses challenges for operators. In this situation, rail operators must consistently maintain stringent benchmarks for safety, speed, reliability, and passenger comfort, even as network density and service expectations increase. To meet these demands, the sector is progressively adopting intelligent technologies such as automation, artificial intelligence (AI), and machine learning (ML), which collectively streamline the efficiency, safety, and responsiveness of train operations. However, implementing these systems requires advanced communication networks to minimise latency and enhance end-to-end data exchange between devices. The deployment of 5G technology provides rail operators with the means to upgrade their communication infrastructure to meet current and future operational requirements. Its higher data transmission rates, increased capacity for simultaneous connections, low latency, and improved reliability facilitate the integration of advanced applications such as real-time signalling, continuous train monitoring, and large-scale IoT sensor networks. These functions support safety management, operational efficiency, and resource optimisation within railway systems. The metro systems have been quite ahead in the process of implementing modern communication systems across the infrastructure as compared to indian railways, which primarily operates on legacy infrastructure. The transition from legacy platforms, including GSM-R, to the Future Railway Mobile Communication System (FRMCS) will require operators to develop migration plans that ensure compatibility with existing assets while allowing for the adoption of 5G-based services. This paper examines the role of 5G technology in enhancing the operational efficiency of railway systems and improving passenger services. It also analyses the technical and infrastructural challenges associated with integrating 5G into existing legacy communication and control systems.16METRO RAIL NEWS -AUGUST 2025 www.metrorailnews.in