The paper presents results of multicriteria optimum design of an embedded rail structure (ERS). The optimality criteria are based on the requirements to railway tracks related to cost efficiency of the design, minimum noise emission and minimum wear of wheels and rails. The design variables comprise the material and geometry properties of ERS, namely elastic properties and volume of compound, s...

This paper introduces two kinds of handover algorithms that adjust the handover (HO) parameters of LTE (Long-Term Evolution) eNodeB (evolved NodeB) to improve the overall network performance and diminish negative effects. The focus is on the impact that two kinds of handover algorithms compare to A3 event based on the optimization of hysteresis and time-to-trigger in the different velocity envi...

There are very similar features between Chinese Railways and European Railways in terms of train operation mode and train control. ETCS (European Train Control System), supported by the European Union and the European Industrials, has been finalized as the technical standard of train control systems in Europe after more than ten years effort. There is more than 71,500 kilometers of railway oper...

With given trip time on each section, conventional train energy-efficient operation problem optimizes the reference speed profile such that the energy consumption for tracking the profile is minimized. Alternatively, this study aims to solve its anti-problem that minimizes the trip time under certain energy constraint, namely the train energyconstraint operation problem. In particular, this stu...

— This paper describes an active stability control system for a high-speed railway vehicle. The complete design process is described, starting with generating mathematical models of the system for control system design and for system validation. The control strategy is briefly outlined along with the necessary refinements required for practical implementation. Some brief results for the stabili...

Due to its important role in high speed railway operation, service planning is always focused on by the researchers. With the development of computer technology, some systems have been researched to help operators and researchers to get satisfied service plan. The paper researches such a system for large-scale high speed railway network. It analyzes the main process of service planning firstly ...

High-speed railway private cellular network provides voice and data services for passengers. It brings much signaling cost as a great many of mobile subscribers ask for location updating simultaneously. Moreover, it leads to plenty of control signaling channel requests. This paper presents two novel location updating schemes, that is, “clustering location management” and “mobile group location ...