一种市政道路BIM设计模型与三维GIS数据集成方法

针对现有市政道路模型交换标准的不足,以及道路BIM设计模型与GIS模型集成中的几何、语义信息缺失等问题,提出一种市政道路BIM设计模型与GIS数据集成的方法,其核心是以City GML模型标准为基础,重新定义了扩展后的道路设计模型;通过要素语义解析、几何模型转换等过程实现道路模型和GIS数据的集成存储与表达。以重庆市九龙坡区尹朝社周边市政道路设计工程为例,进行道路BIM设计模型与现状城市三维模型数据的集成实验,结果表明,方法较好地保留了道路设计模型的整体结构、横断面特征、路段拓扑信息等,并且扩展定义的道路设计模型完整地存储和表达了道路设计要素。方法在城市规划设计延伸应用上具有广阔的前景。

An Integration Method of Road Designing BIM Model and 3D GIS Data

Aiming at the shortage of existing municipal road model exchange standards, as well as the geometric and semantic information missing in the integration of BIM design model and GIS model, a method of integration of BIM design model and GIS data are proposed in this paper. The core of the method is redefining the extended road design model based on the CityGML model. The method implements integrating and expressing of road model and GIS data through the process of factor semantic analysis, geometric model transformation. In this paper, the surrounding municipal road design project of Yinchao Club in Jiulongpo District of Chongqing city is taken as an example for the integrating experiment of road BIM design model and 3D city model data. The experimental results show that the proposed method can preserve the entire structure, the cross section characteristics and the topological information of road sections. The extended road design model integrally stores and expresses the road design elements. This method has a broad prospects in road planning and design.