3D Geodata with Level of Detail 2 for Linz, 2020

3D Geodata with Level of Detail 2 2020 for Linz is a 3D city model automatically created from a Digital Surface Model (DOM) via aerial image analysis. The data includes simple building and roof designs, with coordinates in the Gauss-Krüger system M31-5Mio and heights referenced to the Adriatic Sea. The dataset was generated by Cooperation OGD Österreich and Wikimedia Österreich, based on 2019 data flow, with an update scheduled for September 2023/2024.

Use Cases

• Urban planning and development analysis based on 3D building models.
• Visualization of cityscapes and terrain based on the digital surface model and building data.
• Accuracy assessment for geospatial applications based on the stated ±2 meter precision.
• Integration of building and terrain models for environmental or architectural studies based on the M_... and H_... model designations.

Strengths

• Data includes both building models (M_...) and terrain data (H_...).
• Coordinates are defined in a specific geodetic system (Gauss-Krüger M31-5Mio, EPSG:31255).
• An accuracy specification of ±2 meters is provided for the simple medium accuracy level.
• An update to the dataset was scheduled for September 2023/2024.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count and dataset size are unknown, which may limit suitability assessment.
• The description notes that no liability can be assumed for errors or inaccuracies.

Provenance

Source

Cooperation OGD Österreich, Wikimedia Österreich

Collection Method

Automatically created from a Digital Surface Model (DOM) via aerial image analysis and semi-automatic object formation based on building floor plans.

Time Range

2020 (based on 2019 data flow)

Freshness

Based on 2019 data flow; an update was scheduled for September 2023/2024.

Geography

Linz, Austria