1-Data Acquisition
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• Paper Maps
• Digital Base Maps
• Satellite/Orthophoto Pictures
• GPS Logs
• POI (Point-of-Interest) Lists
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| 2-Updates and Quality Control |
• Update according to Field Test results
• Fix Geometric, Logical, and Routing Problems
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3-Field Survey Validation
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• ‘Drive’ to validate Digital Data
• Correct any existing errors
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| 4-Data Compilation |
• check Turn Restrictions
• Check Road Functionality
• Check - Improve POI
• Check - Improve Navigation Layers
• Check Database Schema, Relations, Attributes and Values
• Convert to GDF Exchange Format
• Parse GDF
• Confirm GDF
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