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  • The Global Roads Inventory Project (GRIP) database is developed PBL. The GRIP database was created in order to provide a current, consistent and harmonized global roads database. Source data was collected from about 60 public (United Nations, NSDIs, topographic agencies, NGOs, OpenStreetmap, etc). To create a consistent and transparent global roads database that can be used and maintainted by a larger community the UN UNSDI-T version 2 light datamodel was used.