Kabukicho Building Fire “Fire doors operate normally if all 44 people survive” | NHK News

Kabukicho building fire “Fire doors are all normal if all 44 people survive” August 30, 19:17

18 years have passed since the building fire in Kabukicho, Shinjuku, Tokyo, where 44 people died. The Tokyo Metropolitan Police Department, together with experts, obtained detailed data showing changes in carbon monoxide gas, etc., which is the basis of the appraisal that verified how smoke spread, and reproduced it with CG. From there, it emerged that all 44 people were saved if the fire door was closed properly.

In the early morning of September 1, 2001, a fire broke out from a multi-purpose building in Kabukicho, Shinjuku-ku, Tokyo, and a total of 44 people, including employees and customers at the Mahjong game store on the 3rd floor and restaurants on the 4th floor Died.

The Metropolitan Police Department has compiled an expert report verifying the spread of smoke together with experts, but NHK obtains detailed data every 20 seconds showing changes in the oxygen, carbon dioxide, and carbon monoxide gas that is the source of that, and the data CG was created with the cooperation of an analysis company.

In the situation at the time when luggage and garbage bags were placed in front of the fire door and the door did not close, about 10 minutes after the fire, the level of consciousness and motor function declined, and half of the people in the place died It was in 12 minutes for the 3rd floor, 13 minutes for the 4th floor, and 15 minutes for all to die.

On the other hand, there was a big difference in the assumption that the fire door closed normally.

On the 4th floor, the level of consciousness and motor function declines after about 20 minutes, and serious symptoms appear in the level of consciousness and motor function after 24 minutes. However, even after 30 minutes, death does not occur. It was.

On the 3rd floor, the level of consciousness and motor function decreased after about 29 minutes.

At that time, the fire brigade entered the store approximately 30 minutes after the fire, and if the fire doors were closed properly, it was revealed that all 44 people were helped.

Mr. Keizo Hatto, former medical officer of the Metropolitan Police Department who conducted the appraisal and medical doctor, said, `` If the fire door is closed, there may be people who are hard to walk due to a decline in consciousness and motor function, but judge what The consciousness to do is not clouded yet, so I think I was able to help enough. I must make use of this lesson. "