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"midpoint_distance_m": 274.5, "start_elevation_m": 45.341832372361324, "end_elevation_m": 46.02194741672523, "start_xy": [ 265070.95901545783, 7026566.953838424 ], "end_xy": [ 265072.5006535854, 7026564.379285793 ] } }, "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": 0.049, "obstruction_max_height_m": 11.1, "flagged_windows_m": [] }, "review": [], "extent": [ "may_continue_beyond_end" ] }, "provenance": { "analysis_version": "0.1.0", "run_manifest": { "manifest_version": "1", "code_git_sha": "368c60c29e47d4b421849c953b172a04f7694146", "code_git_dirty": "false", "analysis_version": "0.1.0", "analysis_config_digest": "sha256:8c94015b54267da4", "python": "3.14.4", "numpy": "2.5.3", "rasterio": "1.5.2", "pyproj": "3.8.0", "laspy": "2.7.0", "shapely": "2.1.2", "pyosmium": "4.3.1", "libosmium": "2.23.1", "gdal": "3.12.2", "proj": "9.8.1", "run_id": "no-b11", "road_pbf": "no-b11-block-batch-no-b11.osm.pbf", "region_key": "norway", "crs": "EPSG:25833", "elevation_provider_key": "nhm-no", "tile_index": "nhm-window", "authority": "nvdb", "registry_pbf": "norway-2026-10-01.osm.pbf" }, "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 ], "scale_correction": "point", "scale_correction_crs": "EPSG:25833", "elevation_crs": "EPSG:25833", "elevation_resolution_m": 1.0, "elevation_tiles": [ "data/cache/no/nhm-no_dtm_E264500-N7026000_1m.tif", "data/cache/no/nhm-no_dtm_E264500-N7026500_1m.tif", "data/cache/no/nhm-no_dtm_E265000-N7026000_1m.tif", "data/cache/no/nhm-no_dtm_E265000-N7026500_1m.tif" ], "calculated_at": "2026-10-03T19:28:05+00:00", "road_source": "OpenStreetMap (local PBF extract)", "road_attribution": "\u00a9 OpenStreetMap contributors, ODbL", "osm_pbf_path": "data/cache/pbf/no-b11-block-batch-no-b11.osm.pbf", "osm_snapshot": "", "run_id": "no-b11", "elevation_provider": "Kartverket NHM DTM 1 m (laser-covered ground only)", "elevation_licence": "CC BY 4.0 \u2014 \u00a9 Kartverket (https://www.kartverket.no/api-og-data/vilkar-for-bruk)", "elevation_dataset": "Nasjonal h\u00f8ydemodell (NHM) DTM, 1 m, EPSG:25833, NN2000 (Kartverket), served by the hoydedata.no ImageServer; ground without a laser project is a coarser resampled product and is never measured", "elevation_vertical_datum": "NN2000", "elevation_tile_ids": [ "E264500-N7026000", "E264500-N7026500", "E265000-N7026000", "E265000-N7026500" ], "elevation_blocks": [ "nhm-dtm-1m" ], "nhm_laser_projects": [ { "last_flight_date": "2008-01-01", "name": "Melhus-Midtre Gauldal 2008", "points_per_m2": 2, "resolution_m": 0.5, "season": "season-unknown", "year": 2008 }, { "last_flight_date": "2011-09-24", "name": "Melhus-Skaun 1pkt 2011", "points_per_m2": 1, "resolution_m": 1, "season": "", "year": 2011 }, { "last_flight_date": "2015-07-04", "name": "NDH Gauldal 2015", "points_per_m2": 5, "resolution_m": 0.25, "season": "", "year": 2015 }, { "last_flight_date": "2016-07-08", "name": "NDH Melhus 2pkt 2015", "points_per_m2": 2, "resolution_m": 0.5, "season": "", "year": 2015 }, { "last_flight_date": "2022-07-29", "name": "NDH Trondheim-Malvik-Stj\u00f8rdal 5pkt Vest 2022", "points_per_m2": 5, "resolution_m": 0.25, "season": "", "year": 2022 }, { "last_flight_date": "2014-01-01", "name": "Tr\u00f8ndelag del3 3pkt 2014", "points_per_m2": 3, "resolution_m": 0.5, "season": "season-unknown", "year": 2014 } ], "nhm_last_flight_date": "2022-07-29", "nhm_flight_season_unknown": [ "Melhus-Midtre Gauldal 2008", "Tr\u00f8ndelag del3 3pkt 2014" ], "nhm_retrieved_at": "2026-10-03T12:27:47Z", "nhm_note": "laser projects overlapping the route's cells; the mosaic draws on them by its own priority and which project supplied which pixel is not recorded", "climb_origin": "discovered", "seam_filled_samples": { "count": 0, "distances_m": [] }, "seam_filled_in_maximum": false, "structure_own_ways": 1, "tunnel_check": "osm tunnel=* ways on 1 own way(s)", "tunnel_ranges_m": [], "underground_fraction": 0.0, "carriageway": { "stations": 20, "stations_resolved": 20, "width_median_m": 5.5, "width_p10_m": 2.48, "width_min_m": 2.25, "width_max_m": 12.0, "bounded_share": 0.15, "unbounded_share": 0.85, "confidence_median": 0.0, "width_median_bounded_m": 4.0, "window_m": [ 272.0, 297.0 ], "width_at_max25_m": 3.75, "window_stations": 7, "single_track": false, "single_track_rule": "PROVISIONAL (2026-09-15): width_p10_m <= 3.0 m with bounded_share >= 0.6; recorded, not a rule", "status": "ok", "source": "dtm", "station_m": 25.0, "window_station_m": 5.0, "halfwidth_m": 6.0, "step_m": 0.25, "level_tol_m": 0.12, "break_min_m": 0.3, "stations_failed": 0, "hedge_to_hedge": { "stations": 20, "stations_resolved": 20, "width_median_m": 8.5, "width_p10_m": 5.92, "width_min_m": 1.25, "width_max_m": 12.0, "bounded_share": 0.25, "unbounded_share": 0.75, "confidence_median": 0.0, "width_median_bounded_m": 6.0, "window_m": [ 272.0, 297.0 ], "width_at_max25_m": 8.5, "window_stations": 7, "status": "ok", "source": "dsm", "station_m": 25.0, "window_station_m": 5.0, "halfwidth_m": 6.0, "step_m": 0.25, "level_tol_m": 0.5, "break_min_m": 0.3, "stations_failed": 0 } }, "naming_note": "birth-named at adoption (named from its own OSM street ('\u00c5svegen'), anchored to 'R\u00f8nningen' (Peter, 2026-09-30))", "license": "ODbL-1.0", "license_url": "https://howsteep.org/licensing" }, "area": { "place": "Melhus", "county": "Tr\u00f8ndelag", "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)" } }