[Press Release] About suspension of operation of some sections of Municipal Subway Green Line (turnal operation)

Today, from the first train on July 6, we had suspended driving between Center Kita Station and Hiyoshi Station due to trouble with train radio equipment, but we resumed all lines operation at 7:17.
We apologize for any inconvenience this may have caused to you.

1 Overview

(1) Location of occurrence

Municipal Subway Green Line Between Higashiyama Station and Takada Station

(Drived section: Between Center Kita Station and Hiyoshi Station)

(2) Progress

July 5, 2022

14:49

Confirmed fault indications of train radio equipment

Confirmed the health of the device by calling test and reception sensitivity confirmation of the radio function

around 26:00

During the night driving test, it was found that normal operation could not be performed in the relevant section.

Then

Conducted investigation to identify and arrange defective parts

July 6, 2022

From the first train

Return operation between Nakayama Station and Center North Station

Replacement of defective parts and confirmation of normality in the relevant section

7:17

Resuming full line operation

2 Impact

Number of affected personnel: 6,000

3 Causes

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