Railway modernisation is a broad term that can refer to various projects and initiatives aimed at improving the efficiency, safety, and capacity of railway systems. This may include upgrading the existing infrastructure, introducing new technologies, and expanding the network to new areas or building new infrastructure and equipment in accordance with the systems to which it will be connected. Railway Sector Modernization Project for Serbia aims to improve the efficiency and safety of Serbia’s rail network and enhance the environmental sustainability of Serbia’s transport system. The paper presents the key parameters of railway modernization from the point of view of traffic, construction and electrotechnical expertise and the effects/connections on the railway network of the countries surrounding the Republic of Serbia. Modern infrastructure for a speed of up to 200 km/h and modern vehicles offer a new quality in passenger traffic and will make it possible to shorten the travel time by train from Belgrade to Budapest. Planned route of the high-speed railway line Belgrade - Niš for a speed of up to 200 km/h (corridor 10) and the bypass railway line Beli Potok-Vinča-Pančevo for a speed of up to 120 km/h (connecting the infrastructure capacities of the Belgrade railway node with the railway lines Pančevo-Vršac and Pančevo-Zrenjanin) have a significant role in the modernization of Serbian railway network not only in the traffic context, but also in all segments of the electrotechnical profession. The implementation of advanced signalling systems, such as the European Train Control System (ETCS), promises increased operational precision and reduced travel times, contributing to a more competitive and sustainable transportation sector. In the context of regional connectivity, Serbia is also actively engaged in collaborative initiatives with surrounding countries on standardization and integration of signalling systems, ensuring smooth cross-border rail traffic and facilitating the movement of goods and passengers within the broader European network.

modernisation, railway network, high speed, ETCS