Editing ATOS (section)

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{{other|Atos (disambiguation)}}
[[File:Traindelayinfomation onatos.jpg|thumb|250px|An electronic display at [[Shinjuku station]] showing train delay information from ATOS]]
{{Nihongo|'''Autonomous Decentralized Transport Operation Control System'''|東京圏輸送管理システム|Tōkyō Ken Yusō Kanri Shisutemu}} or {{Nihongo|'''ATOS'''|アトス|Atosu}} is a [[Autonomous decentralized system|computerized control system]] used by the [[East Japan Railway Company]] to regulate train traffic on railway lines in metropolitan [[Tokyo]], Japan. It was designed by [[Hitachi]]. The first deployment was on the [[Chūō Main Line]] in 1997. It is now used on fourteen lines listed below.

On ATOS-enabled lines, each train station has electronic displays, which show scheduled arrival times and train destinations in Japanese and English, warn passengers when trains are arriving or passing through, send updates on system delays and accidents, and display messages to advertise JR products or warn passengers not to smoke. Pre-recorded voice announcements in train stations are also automated by ATOS.

ATOS also directs train drivers through 16-by-16 lamp matrices, which flash messages telling the train driver to speed up, slow down, or adjust their scheduled departure time in order to keep the entire network running on schedule.

Several JR lines in the [[Kantō region]] use [[Centralized traffic control|CTC]] or PRC systems in lieu of ATOS.