【public design】悲しい公園のベンチ／A tragic bench in a park

理由は危ないからなのか。利用者がけがをしたからか。
有機的で不定形の斬新なベンチ（またはフォーリーか）に「入らないでネ」の立て札。
はられたロープもなかばずり落ちて、無惨。

この形状ならすべりやすいことは設計段階からわかっていたはず。
そこをあえて作ったのならそのふべりやすさという負の部分を超える良さを主張してほしかった。
ここで遊びたい子供もおもしろくなかろう、設計者もつらいだろう、設置者も腑に落ちてはいないだろう。

こういった悲劇のpublic furnitureをなくすのに必要なことはなにか。

Was it too dangerous to play around with? Did anybody get hurt with this?
There is a sign telling KEEP OUT in Japanese, like you tell kids gently "Hairanaide-ne", in front of a bench with a unique, daringly organic design, and surrounded by ropes but some part of them are already fell off.

They should have been aware of this slippery design because of this shape at the beginning.
I wish they could have insisted the good aspect of this bench beyond the risks if they have had a reason to place this.
I can see kids complaining, the designer feeling down and the client not satisfied.

What should be done not to make this tragedy happen again?