Floating City, Hainan
The basic unit for construction is a concrete prefabricated structure measuring 150 meters in length and with a cross-section length and width of 30 meters each. In terms of the layout, it is grid-based with equilateral triangles as the grid points, and can also be in the form of a pentagon in some areas. The prefabricated components can also be stacked vertically. During construction, the components are produced in prefabricated concrete factories and then transported to the underwater city in a floating manner for assembly.
The underwater city is far from the mainland and has a complete internal and external transportation system. Among the maritime transportation facilities, there are cruise port docks for large cruise ships, yacht docks for small yachts to dock and moor, and submarine docks. The internal transportation is mainly by public transportation, with vehicles being submarines and electrically-powered passenger cabins. This is different from traditional land cities that rely mainly on cars for transportation, avoiding the pollution of car exhaust to the atmosphere.
