Abstract: With the deepening of the construction goal of “Real 3D China”, the demand for component level real 3D products is increasing day by day. Starting from the top-level design, this study investigates the full process construction ideas and rapid construction methods of component level real 3D products, represented by high-precision road maps. It elaborates on the key technologies of the entity, semantics, and 3D features of high-precision road map products, constructs road component level realistic 3D products with “one code polymorphism” features, and verifies the feasibility of this technical architecture using a 5-kilometer road section in the South High tech Zone of Chengdu as the research area. The research results indicate that the final high-precision road map component products meet the specifications and design requirements in terms of accuracy, integrity, consistency, etc., which to a certain extent improves production efficiency and provides a reference basis for the development and construction of component level real 3D in other cities.

Key words: component level real 3D, high-precision road map, semanticization, one code polymorphism