PD ISO/TS 19166:2021

What is ISO/TS 19166 about? 

ISO/TS 19166 defines the conceptual framework and mechanisms for mapping information elements from Building Information Modelling (BIM) to Geographic Information Systems (GIS) to access the required information based on specific user requirements. 

The conceptual framework for mapping BIM information to GIS is defined with the following three mapping mechanisms: 

• BIM to GIS Perspective Definition (B2G PD) 
• BIM to GIS Element Mapping (B2G EM) 
• BIM to GIS LOD Mapping (B2G LM) 

The scope of  ISO/TS 19166 includes the following: 

• Definition for BIM to GIS conceptual mapping requirement description 
• Definition of BIM to GIS conceptual mapping framework and component 
• Definition of mapping for export from one schema into another 

NOTE- 

The following concepts are outside the scope: 

• Definition of any particular mapping application requirement and mechanism 
• Bi-directional mapping method between bim and gis 
• Definition of physical schema mapping between bim and gis 
• Definition of coordinate system mapping between bim and gis 
• Bim to gis lod mapping (b2g lm) 

ISO/TS 19166 does not describe physical schema integration or mapping between BIM and GIS models because the physical schema integration or mapping between two heterogeneous models is very complex and can cause a variety of ambiguity problems. Developing a unified information model between BIM and GIS is a desirable goal, but it is out of the scope of this document. 

Who is PD ISO/TS 19166 for?  

ISO/TS 19166 on BIM to GIS conceptual mapping (B2GM) is useful for: 

• A user of geography markup language 
• Designer of GIS 
• Construction industry 
• Architect 
• Road transport industry 

Why should you use ISO/TS 19166?  

Building Information Modelling (BIM) contains rich information related to building elements such as doors, walls, windows, MEP (mechanical, electrical, and plumbing) and others. In addition, BIM models may include information about other features than buildings, which are relevant to GIS. 

A proper mapping method is clearly required. For the mapping mechanisms to work together, a conceptual framework for the mapping process based on open standards between BIM and GIS needs to be established. 

ISO/TS 19166 provides the conceptual framework for BIM to GIS information mapping and required mapping mechanisms. 

These mapping mechanisms are helpful in following ways: 

• BIM to GIS Perspective Definition (B2G PD): supports perspective information representation depending on the specific requirement such as the urban facility management (UFM). For example, to manage the urban facilities, the required data should be collected from the various data sources, including BIM model, and transformed to represent in user-specific perspective. PD defines a Data View to extract the data required and transform the information from the various data sources. 
• BIM to GIS Element Mapping (B2G EM): supports the element mapping from BIM model to GIS model. 
• BIM to GIS LOD Mapping (B2G LM): supports the LOD mapping from BIM model to GIS model. 

As LandInfra has been designed with a common conceptual model between the BIM and GIS communities, transferring information from LandInfra BIM models to LandInfra GIS models should be reasonably straight forward. This standard, therefore, concentrates on mapping from BIM models not based on LandInfra. 

ISO/TS 19166 defines the conceptual framework and mechanisms for mapping information elements from BIM to GIS. It is defined basically by three mapping mechanisms i.e., BIM to GIS Perspective Definition (B2G PD), BIM to GIS Element Mapping (B2G EM) and BIM to GIS LOD Mapping (B2G LM). This will help you access the required information based on your requirements. 

ISO/TS 19166 provides the conceptual framework for BIM to GIS information mapping and required mapping mechanisms. Either in the real or virtual world, you will be able to use the mechanisms defined in ISO/TS 19166 for mapping the required information elements between the two systems. Although ISO/TS 19166 describes mapping information elements from BIM to GIS in general, the primary concern is mapping BIM models to GIS models for visualization.