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 analyzed. Train speed restriction reasons, values of restrictions and their locations are estimated according technical parameter characteristics of existing railway line infrastructure and according requirements for high speed trains. Computer program „Trauka“(„Traction“) is used for solution of problems of railway lines train speed increase. The program is intended to calculate train speed and train driving time 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 exact estimation of train speed increment possibilities when speed restriction reasons are eliminated.