www.mlit.go.jp/tetudo/tetudo_tk7_000017.html
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鉄道：都市鉄道向け無線式列車制御システム(CBTC)仕様共通化検討会 - 国土交通省
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This page describes the Ministry of Land, Infrastructure, Transport and Tourism's deliberation committee on standardizing specifications for Communications-Based Train Control (CBTC) systems for urban railways. CBTC enables shorter train intervals, improved operational stability, and simplified ground equipment, contributing to maintenance efficiency and reduced disruptions. Since interconnecting operations are expanding in the Tokyo metropolitan area, the Railway Bureau is examining CBTC specification standardization to prevent cost increases from multiple incompatible systems and promote wider adoption.
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