Shigeto Hiraguri

A Method of Evaluating Railway Signalling System Based on RAMS Concept

Since the IEC 62278 (RAMS Standard) was published in 2002, its importance and impact to Japan have been conspicuous. On the contrary, various new train control systems based on information technology are under active development. Considering such situations, we assume that it is essential to establish an evaluation method to design railway signalling systems which have an excellent balance to the RAMS indicators at low costs. We propose a basic method to evaluate the performance of a signalling system by a cost indicator based on the concept of RAMS, and confirmed that the method can evaluate systems appropriately considering grade of the line, circumstances and other factors.

Recent Research on Application of ICT for Railway

This paper outlines problems relating to the joint application of railway operation information and recent research and development into information networks, train operation control and telecommunication systems. This paper presents the basic concept underlying a network platform for railway operation and its benefits for train operation control, maintenance of facilities, etc. It also describes how the network platform will enable the integration of various types of data from relevant fields, and increase efficiency of maintenance thereby creating new value drawn from big data analysis or computer simulation. Finally, the paper introduces recent research into precise and adaptable train operation control methods and applications using millimeter wave radio.