It’s Functional, Not Pretty


NEW FLOOD TECHNOLOGY: In a recent post I commented on the flood prevention technology being utilized in the subway stations of Nagoya, Japan. The floodgates are designed to protect the subway system from suffering extensive damages during a flood event. However, my contention is that any preventative measure that requires human activation and /or electricity to operate, suffers a potentially fatal flaw.

WHY? BECAUSE IT WORKS: Instead, I would investigate the feasibility of installing permanent concrete steps leading up to the subway entrance, creating a concrete barrier to flood waters. This flood prevention model has been utilized in some residential settings as seen in the picture below:

Flood mitigation via concrete stairway

Flood mitigation via concrete stairway

Notice the doorway in the photo above, under the exterior light fixture. In order to reach the door, you must first ascend several steps before going down several stairs to reach the door. This works to create a flood barrier protecting the entry door on all sides. This same idea could be extrapolated for use in the subway system design thereby creating a permanent flood barrier.

STEADY REMINDER: I’m not suggesting this idea comes without it’s own downsides (they would be cumbersome for many people to navigate, for starters), but they would always be at the ready. As an added benefit, they’d also serve as a permanent visual reminder of flooding that has occurred in the past – revealing their own cautionary tale, lest anyone forget.

Link to article about the Japanese subway system floodgate: en.rocketnews24.com/2013/09/06/nagoya-surprises-citizens-by-unveiling-new-flood-prevention-technology/ 

Thoughts?

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