Internal Urban Spatial Structure是随着城镇的发展而逐渐形成和变化的。它不仅是不同功能区在空间上的分布与组合，更反映了土地利用方式从乡村单一化向城镇多样化、集约化的转变。想象一下，城镇就像一个呼吸着的有机体，各部分各司其职，协调共生。

Core Components: Urban Functional Zones

• Residential Area: A widely distributed functional zone within cities.
• Commercial District: Typically located in city centers, along major transport routes, or at street corners. Its core isCentral Business District (CBD), a region in the heart of large cities where shopping malls, luxury hotels, and headquarters of major corporations concentrate, with extremely high building density.
• Industrial Zone: Usually located near rivers, railways, highways, and other convenient transportation areas, aiming for minimal cost and maximum efficiency.

Note thaturban functional zones generally lack clear boundaries. One functional zone primarily uses a specific land-use pattern but may also include other types of land.

A Vessel of Culture

Urban space is also a carrier of culture. Whether it's Beijing’s old city’ssiheyuan courtyards, or Shanghai’s Bund with its blend of Eastern and Western architecture, or ancient wisdom such as “diverting streams and gathering springs” in urban planning, all reflect harmonious human-land relationships. From the grid layout of Tang Dynasty Chang’an City’s 'Fangshi System' to Brasília’s modern axial design, every inch of land bears the mark of its era.