The main railway lines in Poland are being modernized in order to reach European standards and ensure the interoperability of the Polish railway network in the trans-European conventional rail system. Modernization is also subject to electric traction, which are part of traction poles. The article presents prestressed ETG traction poles (from abbr. PL Elektroenergetyczny słup Trakcyjny z Głowicą stalową = Electric power traction pole with steel head) for the construction of individual railway and tram support structures on pile foundations. Historical background of implementation of prestressed concrete traction poles in Poland, design assumptions and selected results of experimental research are discussed. The stages of production of prestressed concrete ETG traction poles are also presented.
Michałek et al. (Thu,) studied this question.