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"start_distance_m": 490.0, "end_distance_m": 493.0, "midpoint_distance_m": 491.5, "start_elevation_m": 1415.4505484583742, "end_elevation_m": 1416.34574471531, "start_xy": [ 4500953.979535211, 2636063.2762708133 ], "end_xy": [ 4500954.370834685, 2636066.2506421283 ] } }, "diagnostic_note": "Windows <=3 m are at raster-noise scale (1-sigma raster noise alone is roughly +/-7 pp at 2 m and +/-5 pp at 3 m on a 1 m DTM). Diagnostic use only: never a headline or ranking value.", "quality_summary": { "overhead_obstruction": { "obstruction_threshold_m": 2.0, "obstructed_fraction": 0.029, "obstruction_max_height_m": 20.74, "flagged_windows_m": [ 100 ] }, "review": [], "extent": [ "descends_at_end" ] }, "provenance": { "analysis_version": "0.1.0", "sample_interval_m": 1.0, "interpolation": "bilinear", "smoothing": "none", "gradient_windows_m": [ 5.0, 10.0, 20.0, 25.0, 50.0, 100.0 ], "diagnostic_windows_m": [ 2.0, 3.0 ], "elevation_crs": "EPSG:3035", "elevation_resolution_m": 1.0, "elevation_tiles": [ "data/cache/at/bev-als_dtm_E4500-N2635.tif", "data/cache/at/bev-als_dtm_E4500-N2636.tif", "data/cache/at/bev-als_dtm_E4501-N2635.tif", "data/cache/at/bev-als_dtm_E4501-N2636.tif" ], "calculated_at": "2026-09-11T15:55:46+00:00", "road_source": "OpenStreetMap (local PBF extract)", "road_attribution": "\u00a9 OpenStreetMap contributors, ODbL", "osm_pbf_path": "data/cache/pbf/austria-2026-09-11-batch.osm.pbf", "osm_snapshot": "", "run_id": "at-run2-260911", "elevation_provider": "BEV ALS DTM 1 m", "elevation_licence": "Creative Commons Attribution 4.0 (CC BY 4.0) \u2014 \u00a9 BEV / L\u00e4nder, data.gv.at", "elevation_dataset": "ALS DTM H\u00f6henraster 1 m (Bundesamt f\u00fcr Eich- und Vermessungswesen with the L\u00e4nder), EPSG:3035", "elevation_tile_ids": [ "E4500-N2635", "E4500-N2636", "E4501-N2635", "E4501-N2636" ], "elevation_blocks": [ "N2600000E4500000@2022-09-15" ], "climb_origin": "discovered", "license": "ODbL-1.0", "license_url": "https://howsteep.org/licensing" }, "area": { "place": "Innervillgraten", "county": "Tirol", "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)" } }