City of Niš is the crossroads of the most important Balkan and European traffic routes. The territory of the City is intersected by mportant directions: Corridor X – road connect the Balkan with Central and Western Europe, Main lines E70 and E85, and regional and local traffic network of roads and railways. Niš urban and demographic development has not been matched by investment in road and railway infrastructure, consequently this network are overloaded. Unadjusted development of the city on already built of railway lines, led to the spatial and functional conflicts and many negative effects. Building of bypass line includes the implementation of Corridor X through node and unobstructed transit traffic on Corridor X. This creates the conditions for the separation of passenger and freight transport and relieving of freight traffic the central zone of the city of Nis. The construction of the railway bypass around the City of Niš will allow implementation of EU standards for interoperability, will contribute to the further development of the city and will also contribute achieving better conditions for transport of passengers and freights thus helping divert international road traffic to the railways with the consequent benefits in environmental terms. Aim of the author work is to show traffic and civil aspects of the construction of the bypass, its interdependence and the impact on traffic Niš junction. Optimal technical and spatial – urban solution can be realized in phases to meet the needs of transport and development plans of City of Niš.

railway bypass, traffic, infrastructure