For instance, to create stylistic unity Taipei City requires arcades to be provided under all new buildings which front onto certain main roads. These arcades give pedestrians shelter from the sun and rain and are also convenient for shopkeepers. But it now turns out that designs with reduced numbers of walls and columns may create a "weak storey" with a greater risk of collapse.
譬如台北市為求景觀上的統一，規定某些路段面臨大馬路的新建物一律要設騎樓，讓行人可以有遮陽避雨的地方，也讓商家容易做生意，沒想到現在卻發現騎樓部份缺少牆面和柱子，可能形成「軟弱層」而塌陷。