為了應對2040以後亞洲區航空旅客數將翻倍，桃園第四航廈正準備規劃。由於狹長的基地限制，將航廈分成兩段及貨運區，中間以輕軌連接各個節點。台灣的狹長地形及河流的東西走向恰恰反應第四航廈的基地性質，因此空間體驗及動線皆以人流作為河流的面向設計。為了改進世界上普遍機場入境時旅客壓迫無趣的空間體驗，我們將衛星廊廳區的出入境顛倒放置，入境在上，出境在下，並以河流狀的懸吊橋將入境旅客集中。出境入境的旅客都能在挑空的大空間內享受壯闊的水從結點處的屋頂傾瀉而下，也使之成為指示性的節點，無論入境或出境的旅客都能很直覺性的向節點走完程序，不需要密密麻麻的指示牌。對此，基地的狹長不再是一項限制設計的缺點，利用河流及指示性的旅客體驗反而將其化為一特色。

According to the statistics, the passengers will be doubled in Asia in 2040, and the Taoyuan terminal 4 is currently under planning. In case of the narrow limitation of the site, the terminal is divided into head house、satellite and cargo area. Taiwan’s geography and hydrology characteristics resemble this site, so the concept and the circulation of it lie on the rivers of Taiwan. To optimize the passenger experience, the circulation between departure and arrival are placed oppositely. Arrival on the top and departure at the bottom, and the river-shaped suspended bridge for arrival passengers allow both departure and arrival travelers experience the magnificent waterscapes falling from the rooftop, they also become the best indication system for travelers to go to the further migration process, the dense indicators are no longer needed. In brief, the narrow site is not the limitation anymore, the addition of river concept and indication scenery turns it to be a highlight.