In the CBM experiment [1] the Kalman filter based algorithm of primary vertex reconstruction is implemented [2]. The algorithm is developed for the case of single primary vertex events: all found tracks are used for the primary vertex reconstruction. The multivertex events availability is assumed by the physics program of the CBM experiment. In case of the multivertex event the situation is mor...

Elevated summer temperatures are a disrupting factor on the rail network. Due to risk of track buckling under thermal expansion forces, geometry maintenance must be delayed during heatwaves, leading an overall decreased network availability and reliability. Track asset management support tools used plan schedule variety activities, with tamping stoneblowing being primary activities for maintena...

This paper presents a methodology to build representative railway track geometries thanks to a stochastic modelling. This modelling, which has to integrate the statistical and spatial variabilities and dependencies, is a key issue when using simulation for conception, maintenance or certification purposes, as the dynamic behaviour of the trains is mainly induced by the track geometry. The stoch...

High speed trains are currently meant to run faster and to carry heavier loads, while being less energy consuming and still respecting the security and comfort certification criteria. To face these challenges, a better understanding of the interaction between the dynamic train behavior and the track geometry is needed. As during its lifecycle, the train faces a great variability of track condit...

current practices in railway track analysis and design are reviewed and discussed in this paper. the mechanical behavior of railway track structure comprising of various components has not been fully understood due to the railway track structural complexity. although there have been some improvements in the accuracy of current track design methods in recent decades, there are still considerable...