OSM Building Footprints Vector Tiles Dataset – Dominica, 2025

Demonstration Case Name Multihazards in the Caribbean SIDS Dataset Title OSM Building Footprints Vector Tiles Dataset – Dominica, 2025 Dataset Description This dataset consists of vector tiles containing OpenStreetMap building footprints, processed using Planetiler. The MBTiles format stores geometric representations of buildings as vector data, enabling efficient rendering and analysis within digital twin environments. The dataset maintains precise spatial relationships and supports scalable visualization across multiple zoom levels. Key Methodologies Vector tile generation using Planetiler processing pipeline Input data transformation from OSM PBF format Feature mapping according to OpenMapTiles schema Optimized tile sorting and grouping for efficient querying Temporal Domain Current snapshot of building footprints as of March 2025, representing the state of OpenStreetMap contributions up to February 2025. Spatial Domain Geographic extent covering Dominica (15°25′N latitude, 61°20′W longitude), including all administrative boundaries within the island nation and surrounding water body. Key Indicators Building footprint area and perimeter measurements Spatial relationships between adjacent structures Vector tile zoom level coverage (0-16) Feature density per tile quadrant Building geometry complexity metrics Data Format MBTiles SQLite database containing vector tiles in PBF format, organized according to OpenMapTiles schema specifications Source Data Primary source: OpenStreetMap building footprints Processing tool: Planetiler vector tile generator github.com Schema compliance: OpenMapTiles specification Coordinate reference system: Web Mercator (EPSG:3857) Accessibility Zenodo, https://doi.org/10.5281/zenodo.15234667 Stakeholder Relevance Urban planning departments Emergency response organizations Infrastructure development teams Disaster risk assessment analysts Digital twin platform developers Limitations/Assumptions Data currency limited to OSM contribution timelineBuilding geometries represent ground-level footprints only Vertical structures represented as single-level features Data completeness varies by region within Dominica and Contributions Amount. Updates require periodic regeneration of tilesets Processing time scales linearly with dataset size (its around 128gbs for the whole world and might take around 8hrs to process at once. ) Additional Information Technical specifications: Vector tile format needed: PBF (Protocol Buffers) from : https://extract.bbbike.org/ or https://www.geofabrik.de/de/index.html Storage structure: SQLite database Schema compatibility: OpenMapTiles Processing requirements: ~1.5x RAM of input sizeExpected output should result in : mbtile file format Refer to this repository for more :https://github.com/onthegomap/planetiler Contact Information [e-mail]