More precise elevation data for GraphHopper routing engine
3 days ago
- #elevation-data
- #routing-optimization
- #graphhopper
- GraphHopper has integrated more precise elevation data from the mapterhorn project to improve routing accuracy.
- Previous elevation data from CGIAR (90m precision) sometimes caused inaccuracies near mountains and rivers, leading to detours.
- The new data required optimizations in the OpenStreetMap import pipeline and a new compressed cache format for efficient storage and access.
- GraphHopper Maps now features an improved elevation widget and route statistics, providing better insights into incline, surface, and network details.
- Examples demonstrate significant improvements in elevation accuracy for roads near rivers, mountains, and hiking routes.
- The new elevation data is live in GraphHopper's commercial APIs and enhances energy estimates for electric vehicles.