Scientific paper ID 1959 : 2020/3

Exceptions to the norms are often d when designing railway reconstructions. During the reconstruction and modernization of the railway line’s and the railway tracks in the stations there are existing buildings, crossing of existing railways and highways and existing transport facilities (bridges, culverts and tunnels), which impose any exception to the norms. Sofia railway junction consists of 17 stations and stops. The reconstruction project envisages the development of several lots, and the reconstruction must bring the railway sections, railway stations, railway tracks, platforms and adjacent infrastructure in line with the ments for interoperability of Regulation N 1302/2014 on railway infrastructure. The report is based on a completed project for modernization of railway sections: ”Voluyak station - Birimirtsi station”, ”Sofia central station through Sofia north station - Iliyantsi station” and ”Kazichene station through Musachevo station - Stolnik station”.

Ordinance 55 imposes quite strict ments on the design of railways, railway stations and transport facilities. At the same time, it gives the designer the freedom to justify exceptions to the rules, referring to the existing situation, European rules and norms for the interoperability of rail transport.

The exceptions in the project for development of the Sofia railway junction are also of fundamental importance, which should be considered in future additions and changes in the normative documentation.