Track circuit coding can be realized by Train Control Center in Highspeed Railway to keep the train running safe. This paper looks into the track circuit coding method using expert system, in which the reasoning process of track circuit coding was realized using software simulation with the data of Beijing-Shanghai High Speed Railway. Combined with test cases, the joint debugging is realized an...

There is no industry accepted analytical model to compute the critical temperature differential for buckling of an unloaded curved track in North American literature. In this paper, formulated by incorporating a value unity factor safety previously developed formula, which was considering thermal loading only. The ratio between resistance tie against lateral displacement ballast and load on tie...

Safety should be the primary concern when building a railway network. The safety of a railway network typically depends upon the use of track-side signals in regulating the safe passage of trains. Establishing the correctness of the systems that control the track-side signals therefore plays a crucial role in ensuring the safety of the railway network. The aim of the assignment is to develop a ...

Active steering system of railway vehicles has proven its ability to bridge the gap between stability and curve friendliness. Generally scaled railway vehicles were developed to reproduce the fundamental dynamic behavior of the full size railway vehicle in laboratory conditions. This paper describes the design of the braking/traction control systems as a part of a 1/5 scaled railway vehicle for...

The sand intrusion in railway tracks sandy regions can significantly change the mechanical behaviour of and thus threaten safety train operation. This paper presents substantial field tests on both clean to study effect longitudinal resistance ballast bed vibration track structures. After that, a 3D multi-scale discrete element model is developed micro-contact between particles during passing d...

Ballasted tracks are common in the railway system as a means of providing necessary support for sleepers and rails. To keep them operational, tamping other maintenance actions performed based on track geometry measurements. Ballast particle rearrangement, which is caused by train load, one most important factors leading to degradation. As result, when planning maintenance, it vital predict beha...