A train collision on Tokyu Railways¡¯s Den-en-toshi Line in Kawasaki late Sunday was caused by a signal setting error, the railway operator said Tuesday.
Due to the setting error, the automatic train control system gave a green light to a train entering Kajigaya Station, resulting in the train crashing into a parked not-in-service train, according to Tokyu Railways.
The error had existed since rail repair work at the station in 2015. The company is investigating the circumstances in detail.
¡°We deeply apologize for causing inconvenience and anxiety to many customers,¡± Tokyu Railways President Seiichi Fukuta said at a news conference in Tokyo on Tuesday. Fukuta promised to take thorough measures to prevent a recurrence.
The incident occurred shortly after 11 p.m. on Sunday. No one was injured, but train services were halted in some sections from Monday morning until midnight, affecting some 650,000 people.
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