The Standardization Method and Application of the BIM Model for Interchanges
Yiyang Zhai; Chi Zhang; Bo Wang; Xue Wang; Kai Liu; Zhongze Tang
Research on the standardization of interchange BIM components is required to encourage the use of BIM technology in interchange and quicken the development and improvement of relevant standards and specifications. The depth level of the model, classification, and coding of interchange BIM components, and the design and administration of the component library are the main topics of this work. First, the concept and main research content on the standardization of interchange BIM components were proposed. Second, the common forms of interchange were summarized. The basic components of interchanges include through lanes, ramps, connections, overpass bridges, and traffic safety facilities, and can be divided into 14 second-level components, such as the main line, the minor cross highway, the speed-change lane, etc. On this basis, a method for interchange BIM components classification based on faceted classification and a coding method based on a combination code was proposed. The model depth grading of the BIM component of the interchange was studied, and grading was carried out considering three aspects: the level of detail (LOD), geometric accuracy, and information level. Finally, the process of creating interchange BIM component libraries was proposed. The results showed that the interchange BIM components can adopt a three-level coding method, namely &ldquo:the overall spatial code&ndash:classification code&ndash:instance code&rdquo:, and the LOD, geometric accuracy, and information level of the interchange BIM components can be divided into four levels. Additionally, interchange BIM component libraries can be created using five steps: an overall plan of component resources, standard determination, component creation, component audit, component storage, and application.
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