GB/T 19711-2021 Active National standards

GB/T 19711-2021 Data model and data exchange format for navigable spatial database

Publish Date: 2021-10-11 Implement Date: 2021-10-11 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

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Basic Information

Standard Code: GB/T 19711-2021

Standard Type: National standards

Standard Status: Active

is_force_gb: no

CCS Name: Surveying and mapping

ICS Name: Information technology, office machinery and equipment (vocabulary)

Publish Date: 2021-10-11

Implement Date: 2021-10-11

Pages: 629 pages

Scope

This standard specifies the conceptual data model, logical data structure, and physical encoding format of navigation geographic databases. It describes the possible content of the database (elements, attributes, and relationships), and explains how to express this content and how to define metadata.
This standard focuses on describing roads and road-related information, as well as other relevant information required by intelligent transportation systems (ITS) applications, such as:
Example 1: ITS applications need to use address system information to specify locations and/or destinations. Therefore, this standard includes information such as administrative divisions and postal subdivisions as one of the important contents.
Example 2: Map display is an important component of ITS applications. To improve the expressiveness of maps, this standard includes information such as land cover and water body coverage.
Example 3: Point of interest or service information is an important concern for travelers, and this standard describes it.
The typical application fields of this standard are in-vehicle and portable navigation systems, traffic management centers, or services related to road management systems (such as public transportation systems).
This standard applies to ITS applications and services. The conceptual data model is not only applicable to ITS applications, but also to other related applications. The conceptual model is independent of the application and can be integrated with other geographic database standards.
This standard only specifies the representation method of geographic data and does not involve the specific content of the data. In the process of using this standard, if the content of the electronic map data used by the user conflicts with the national map confidentiality principles, the user should first comply with the national map data confidentiality principles.