[Press Release] About suspension of operation of some sections of municipal subway Green Line (turn-off operation)

Today, from the first train on July 6, operation was suspended between Center-Kita Station and Hiyoshi Station due to trouble with the train radio equipment, but all line operation was resumed at 7:17.
We apologize for any inconvenience this may cause to you.

1 Overview

(1) Location of occurrence

Municipal Subway Green Line between Higashiyamada Station and Takada Station

(Driving suspension section: between Center-Kita Station and Hiyoshi Station)

(2) Progress

July 5, 2022

14:49

Check the malfunction indication of the train radio device

Confirming the health of the device by calling test and checking the reception sensitivity of wireless functions.

around 26:00

During the night driving test, it was found that normal operation was no longer possible in the section.

After that

Conduct a cause investigation, identify and arrange defective parts

July 6, 2022

From the first train

Return operation between Nakayama Station and Center-Kita Station

Replacement of defective parts and confirmation of health in the section

7:17

Restart operation of all lines

2 Impact

Approx. 6,000 employees

3 Cause

Due to equipment failure of the train radio equipment. Details are under investigation.