Continuous Updating of the Municipal Mapping of Donostia / San Sebastián through Mobile Mapping and Advanced Surveying

(2021–2025)

Geogram in figures

Since
2025
Projects
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Expert
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Actualización continua de la cartografía municipal

Challenge

The City Council of Donostia / San Sebastián needed to keep its urban and rural mapping continuously up to date in an environment that is constantly evolving: new construction works, changes to the road network, modifications to street furniture, building alterations and updates to public infrastructure. Municipal mapping is a critical resource for urban planning, public services and emergency response, and any outdated information directly affects analysis capabilities and decision-making accuracy.

The objectives were ambitious:

  • Update 65 hectares of municipal mapping every year.
  • Survey 140 km of streets annually using Mobile Mapping technology.
  • Keep DonostiaOinez continuously updated, providing citizens with recent and reliable 360° panoramic imagery.

Achieving these goals required a continuous, accurate and highly efficient data capture and mapping workflow.

The continuous updating of our municipal mapping through Mobile Mapping and advanced surveying allows us to work with an accurate, consistent and always up-to-date territorial database. The 360° imagery and point clouds make it possible to inspect and analyse the city without field visits, while DonostiaOinez has become a valuable tool for both municipal staff and the public.

Ibon Ramos
Head of the Municipal Data Unit
City Council of Donostia / San Sebastián

Solution

Geograma deployed a multidisciplinary team specialising in surveying, cartography, photogrammetry, map restitution and Mobile Mapping. The project covered every stage of the workflow required to ensure consistency, accuracy and long-term data quality.

The solution combined continuous reality capture, advanced surveying techniques, point cloud processing, cartographic updating and the publication of up-to-date geospatial information, creating an efficient and repeatable process for maintaining the municipality’s geospatial database.

Actualización continua de la cartografía municipal

Results

The project is delivering an accurate, up-to-date and consistent digital representation of the municipality, providing significant operational benefits, including:

  • Continuous and consistent updating of municipal mapping, incorporating thousands of changes and newly detected features every year.
  • Immediate availability of 360° imagery and high-density point clouds, enabling remote inspection and analysis without the need for site visits.
  • Continuous enhancement of DonostiaOinez, providing up-to-date and transparent information for both municipal staff and citizens.
  • Increased operational efficiency through reduced fieldwork, improved traceability and faster, data-driven decision-making.
  • A consolidated municipal geospatial reference system supporting urban planning, infrastructure maintenance, emergency management and public-sector projects.

The City Council now benefits from a robust, living cartographic database that accurately reflects the current reality of the municipality and provides a reliable foundation for future planning and management.

Geograma
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