Full Upgrade of ATOS to Improve Safety and Reliability of Railway Services
Hitachi Review Vol. 63 (2014), No. 8 493 Featured Articles Full Upgrade of ATOS to Improve Safety and Reliability of Railway Services Yasuhiro Yoshida OVERVIEW: Tokyo, Japan’s capital, has become one of the world’s major Kouhei Akutsu cities through the ongoing migration of people from the provinces as the Yasuhiro Yumita country’s economy has grown. The railways serving the Tokyo region are an important part of the social infrastructure that support the functioning of the Ryuji Yamagiwa city over a wide area. Their ongoing development has created a complex and Hideki Osumi high-density network, including the Chuo and Shonan-Shinjuku Lines, among Mitsunori Okada others. Future railway systems are expected to satisfy new requirements Kiyosumi Fukui arising from the changing social environment, including the utilization of existing infrastructure to allow different operators to run services on the same track, and further improvements to passenger services. To achieve this, JR-East and Hitachi aim to provide safe and reliable management of railway traffic, and to help improve services to all stakeholders, including passengers, through initiatives such as the fusion of control and information technologies. has facilitated ongoing work to add new lines to the INTRODUCTION system without affecting those lines where it was WHEN the East Japan Railway Company (JR- already operating. With the system now covering East) was established in 1987, very little progress 20 lines, amounting to a combined length of about had yet been made on the computerization of train 1,270 km, it has become an important part of the social traffic management on its metropolitan lines in infrastructure, essential to the ongoing provision of the Tokyo region, with traffic management for safe and reliable transportation (see Fig.
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