ATOS

Autonomous Decentralized Transport Operation Control System (東京圏輸送管理システム Tōkyō Ken Yusō Kanri Shisutemu) or ATOS (アトス Atosu) is a 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. Several JR lines in the Kantō region use CTC or PRC systems in lieu of ATOS.

ATOS

Autonomous Decentralized Transport Operation Control System (東京圏輸送管理システム Tōkyō Ken Yusō Kanri Shisutemu) or ATOS (アトス Atosu) is a 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. Several JR lines in the Kantō region use CTC or PRC systems in lieu of ATOS.