Solution of problems of train speed increment in Lithuanian railway lines

Abstract

Technical problems of train speed increment up to 160 km/h in existing railway lines are analysed. Train speed restriction reasons, values of restrictions and their locations are estimated according to technical parameter characteristics of existing railway line infrastructure and according requirements for high-speed trains. Computer programme „Trauka“ („Traction“) is used for solving problems of train speed increase. The programme is intended for calculation of train speed and train driving time by evaluating technical level of existing railway lines infrastructure. Great attention is paid to complex analysis of road plan, longitudinal profile and upper road structure elements when railway lines infrastructure reconstruction is carried out. Applications of these methods in practice allow an exact estimation of train speed increment possibilities when speed restriction reasons are eliminated.