Nearly 40% of Shinkansen depots are in the flooded area on October 17 at 16:22
Due to Typhoon No. 19, the Hokuriku Shinkansen vehicle center in Nagano city was severely flooded. NHK surveyed other JR companies' Shinkansen vehicle centers, etc., and found that nearly 40% of them were in the flood inundation area. Experts pointed out that “there is a possibility that the vehicle could be seriously damaged even if it is flooded by several tens of centimeters.
In the vicinity of the “Nagano Shinkansen Vehicle Center”, which was flooded by Typhoon No. 19 and caused extensive damage to vehicles on the Hokuriku Shinkansen, it was assumed in the hazard map of Nagano City that flooding due to flooding would be more than 10 meters.
In addition to Nagano, there are 18 rolling stock centers and bases of JR companies that hold many Shinkansens. NHK has analyzed the risk of flooding based on the hazard maps of prefectures and local governments.
As a result, nearly 40% of the facilities at seven locations were in the flood inundation area.
Specifically, it is assumed that the inundation depth is 1 meter or more: “Tokai Car Station” in JR Tokai in Settsu City, Osaka, “Hamamatsu Factory” in JR Tokai in Hamamatsu City, Shizuoka Prefecture, ▽ JR Kyushu's "Kumamoto General Rolling Station" in Kumamoto City, and JR West's "Hakata General Rolling Station Hiroshima Branch" in Hiroshima City.
In addition, the depth of flooding is 50 cm or more and less than 3 m in one place in JR Hokkaido, and less than 50 cm in two places, JR East Japan and JR Tokai.
In addition, there were three places where part of the site was included in the assumed inundation area.
Expert "Damage even in the water of several tens of centimeters"
Ryo Takagi, a professor at Kogakuin University, who is familiar with railways, said about the risk of inundation: “Since Shinkansen vehicles are concentrated on the top of the rails, important electronics are concentrated, so even if flooded by several tens of centimeters, it will cause significant damage.” Talking.
And “Vehicle bases need a lot of land, so they are often set up in low-priced places that are convenient for land acquisitions. Since I think disasters have become more severe than those days, raising the land "We should consider measures such as enclosing and surrounding with embankments."
On top of that, “The Shinkansen runs a dedicated vehicle for each route, and the weakness is that it does not have the flexibility of operation such as turning the Tohoku Shinkansen vehicle to the Hokuriku Shinkansen. Technically, it should be changed now.” Talking