{ "ocl_version": "0.1.0", "name": "Discovered lane (42.5593, 8.9792)", "slug": "discovered-lane-42-5593-8-9792", "confidence": "B", "reported_claims": [], "ladder": [ { "window_m": 2.0, "max_gradient_pct": 27.933260827921913, "diagnostic": true, "flags": [], "start_distance_m": 440.0, "end_distance_m": 442.0, "start_elevation_m": 567.0734823644622, "end_elevation_m": 567.6321475810206, "min_gradient_pct": -0.14463983031873795 }, { "window_m": 3.0, "max_gradient_pct": 25.70742533919959, "diagnostic": true, "flags": [], "start_distance_m": 441.0, "end_distance_m": 444.0, "start_elevation_m": 567.275431426524, "end_elevation_m": 568.0466541867, "min_gradient_pct": 0.11292427317736535 }, { "window_m": 5.0, "max_gradient_pct": 24.69044555861501, "diagnostic": false, "flags": [ "canopy_or_structure" ], "start_distance_m": 441.0, "end_distance_m": 446.0, "start_elevation_m": 567.275431426524, "end_elevation_m": 568.5099537044548, "min_gradient_pct": 0.772062177729822 }, { "window_m": 10.0, "max_gradient_pct": 22.79034271614819, "diagnostic": false, "flags": [ "canopy_or_structure" ], "start_distance_m": 235.0, "end_distance_m": 245.0, "start_elevation_m": 536.3210293459588, "end_elevation_m": 538.6000636175736, "min_gradient_pct": 1.127701083375996 }, { "window_m": 20.0, "max_gradient_pct": 22.684265581941645, "diagnostic": false, "flags": [ "canopy_or_structure" ], "start_distance_m": 224.0, "end_distance_m": 244.0, "start_elevation_m": 533.8393745874317, "end_elevation_m": 538.3762277038201, "min_gradient_pct": 4.073869890136166 }, { "window_m": 25.0, "max_gradient_pct": 21.96466884309075, "diagnostic": false, "flags": [ "canopy_or_structure" ], "start_distance_m": 224.0, "end_distance_m": 249.0, "start_elevation_m": 533.8393745874317, "end_elevation_m": 539.3305417982044, "min_gradient_pct": 4.125080615815477 }, { "window_m": 50.0, "max_gradient_pct": 19.086860849845834, "diagnostic": false, "flags": [], "start_distance_m": 397.0, "end_distance_m": 447.0, "start_elevation_m": 559.1895951599535, "end_elevation_m": 568.7330255848764, "min_gradient_pct": 4.771195979608365 }, { "window_m": 100.0, "max_gradient_pct": 17.015104005368244, "diagnostic": false, "flags": [], "start_distance_m": 352.0, "end_distance_m": 452.0, "start_elevation_m": 552.6623388735532, "end_elevation_m": 569.6774428789214, "min_gradient_pct": 5.315524580705414 } ], "shape": { "ascent_concentration": 0.368, "concentration_window_frac": 0.25, "longest_pitch_10pct_m": 103.0, "shape_class": "sustained" }, "length_m": 452.62842521713924, "start_elevation_m": 519.001865417988, "end_elevation_m": 569.7888690175678, "endpoint_gain_m": 50.78700359957975, "overall_gradient_pct": 11.220462695248475, "accumulated_ascent_m": 50.84698283755188, "window_maxima": { "max_5m": { "gradient_pct": 24.69044555861501, "start_distance_m": 441.0, "end_distance_m": 446.0, "midpoint_distance_m": 443.5, "start_elevation_m": 567.275431426524, "end_elevation_m": 568.5099537044548, "start_xy": [ 1191240.167670633, 6180746.8338823095 ], "end_xy": [ 1191244.4430773025, 6180744.259139158 ] }, "max_10m": { "gradient_pct": 22.79034271614819, "start_distance_m": 235.0, "end_distance_m": 245.0, "midpoint_distance_m": 240.0, "start_elevation_m": 536.3210293459588, "end_elevation_m": 538.6000636175736, "start_xy": [ 1191279.1669774936, 6180826.7200843245 ], "end_xy": [ 1191278.115999349, 6180816.79240018 ] }, "max_20m": { "gradient_pct": 22.684265581941645, "start_distance_m": 224.0, "end_distance_m": 244.0, "midpoint_distance_m": 234.0, "start_elevation_m": 533.8393745874317, "end_elevation_m": 538.3762277038201, "start_xy": [ 1191278.4564537036, 6180837.510625267 ], "end_xy": [ 1191278.3402025811, 6180817.758140159 ] }, "max_25m": { "gradient_pct": 21.96466884309075, "start_distance_m": 224.0, "end_distance_m": 249.0, "midpoint_distance_m": 236.5, "start_elevation_m": 533.8393745874317, "end_elevation_m": 539.3305417982044, "start_xy": [ 1191278.4564537036, 6180837.510625267 ], "end_xy": [ 1191276.7282437745, 6180813.040849239 ] }, "max_50m": { "gradient_pct": 19.086860849845834, "start_distance_m": 397.0, "end_distance_m": 447.0, "midpoint_distance_m": 422.0, "start_elevation_m": 559.1895951599535, "end_elevation_m": 568.7330255848764, "start_xy": [ 1191199.0222541147, 6180762.42100229 ], "end_xy": [ 1191245.2892696504, 6180743.726261583 ] }, "max_100m": { "gradient_pct": 17.015104005368244, "start_distance_m": 352.0, "end_distance_m": 452.0, "midpoint_distance_m": 402.0, "start_elevation_m": 552.6623388735532, "end_elevation_m": 569.6774428789214, "start_xy": [ 1191184.430420819, 6180778.194636054 ], "end_xy": [ 1191249.52023139, 6180741.061873706 ] } }, "window_minima": { "min_5m": { "gradient_pct": 0.772062177729822, "start_distance_m": 5.0, "end_distance_m": 10.0, "midpoint_distance_m": 7.5, "start_elevation_m": 519.0760324174391, "end_elevation_m": 519.1146355263256, "start_xy": [ 1191369.7985248785, 6181033.164532079 ], "end_xy": [ 1191368.8849657287, 6181028.255918556 ] }, "min_10m": { "gradient_pct": 1.127701083375996, "start_distance_m": 0.0, "end_distance_m": 10.0, "midpoint_distance_m": 5.0, "start_elevation_m": 519.001865417988, "end_elevation_m": 519.1146355263256, "start_xy": [ 1191370.756, 6181038.072 ], "end_xy": [ 1191368.8849657287, 6181028.255918556 ] }, "min_20m": { "gradient_pct": 4.073869890136166, "start_distance_m": 68.0, "end_distance_m": 88.0, "midpoint_distance_m": 78.0, "start_elevation_m": 524.1425356213947, "end_elevation_m": 524.9573095994219, "start_xy": [ 1191347.250146868, 6180975.053998588 ], "end_xy": [ 1191337.467070966, 6180957.610047604 ] }, "min_25m": { "gradient_pct": 4.125080615815477, "start_distance_m": 59.0, "end_distance_m": 84.0, "midpoint_distance_m": 71.5, "start_elevation_m": 523.7252483456263, "end_elevation_m": 524.7565184995801, "start_xy": [ 1191351.6525310238, 6180982.903776529 ], "end_xy": [ 1191339.4236861465, 6180961.098837801 ] }, "min_50m": { "gradient_pct": 4.771195979608365, "start_distance_m": 62.0, "end_distance_m": 112.0, "midpoint_distance_m": 87.0, "start_elevation_m": 523.8864604222841, "end_elevation_m": 526.2720584120883, "start_xy": [ 1191350.1850696385, 6180980.287183882 ], "end_xy": [ 1191325.7273798836, 6180936.677306425 ] }, "min_100m": { "gradient_pct": 5.315524580705414, "start_distance_m": 59.0, "end_distance_m": 159.0, "midpoint_distance_m": 109.0, "start_elevation_m": 523.7252483456263, "end_elevation_m": 529.0407729263317, "start_xy": [ 1191351.6525310238, 6180982.903776529 ], "end_xy": [ 1191304.9246054261, 6180894.55036539 ] } }, "diagnostic_window_maxima": { "max_2m": { "gradient_pct": 27.933260827921913, "start_distance_m": 440.0, "end_distance_m": 442.0, "midpoint_distance_m": 441.0, "start_elevation_m": 567.0734823644622, "end_elevation_m": 567.6321475810206, "start_xy": [ 1191239.2312639323, 6180747.184798954 ], "end_xy": [ 1191241.0583079108, 6180746.390649459 ] }, "max_3m": { "gradient_pct": 25.70742533919959, "start_distance_m": 441.0, "end_distance_m": 444.0, "midpoint_distance_m": 442.5, "start_elevation_m": 567.275431426524, "end_elevation_m": 568.0466541867, "start_xy": [ 1191240.167670633, 6180746.8338823095 ], "end_xy": [ 1191242.7506926067, 6180745.324894309 ] } }, "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": 0.093, "obstruction_max_height_m": 9.43, "flagged_windows_m": [ 5, 10, 20, 25 ] }, "review": [], "extent": [ "may_start_earlier", "may_continue_beyond_end" ] }, "provenance": { "analysis_version": "0.1.0", "run_manifest": { "manifest_version": "1", "code_git_sha": "33abfff569d4360542e616d0d42c1b94d0a711fa", "code_git_dirty": "false", "analysis_version": "0.1.0", "analysis_config_digest": "sha256:8c94015b54267da4", "python": "3.14.4", "numpy": "2.5.3", "rasterio": "1.5.1", "pyproj": "3.8.0", "laspy": "2.7.0", "shapely": "2.1.2", "pyosmium": "4.3.1", "libosmium": "2.23.1", "gdal": "3.12.4", "proj": "9.8.1", "run_id": "fr-co2", "road_pbf": "block-batch-fr-co2.osm.pbf", "region_key": "france", "crs": "EPSG:2154", "elevation_provider_key": "ign-lidarhd", "tile_index": "wms-grid", "authority": "bdtopo", "registry_pbf": "france-vosges-2026-09-16.osm.pbf", "tile_index_snapshot": "sha256:2a717d675f2607cc" }, "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:2154", "elevation_resolution_m": 0.5, "elevation_tiles": [ "data/cache/fr/ign-lidarhd_dtm_E1191-N6180_0m5@21LHDCorseUS-2025-04-02.tif", "data/cache/fr/ign-lidarhd_dtm_E1191-N6181_0m5@21LHDCorseUS-2025-04-02.tif" ], "calculated_at": "2026-09-25T00:44:36+00:00", "road_source": "OpenStreetMap (local PBF extract)", "road_attribution": "\u00a9 OpenStreetMap contributors, ODbL", "osm_pbf_path": "data/cache/pbf/block-batch-fr-co2.osm.pbf", "osm_snapshot": "", "run_id": "fr-co2", "elevation_provider": "IGN LiDAR HD MNT 0.5 m", "elevation_licence": "Licence Ouverte / Open Licence 2.0 (Etalab) \u2014 \u00a9 IGN, LiDAR HD (MNT/MNS), data.geopf.fr; reproduction autoris\u00e9e avec mention de la source et de la date", "elevation_dataset": "LiDAR HD \u2014 MNT (sol) et MNS (surface), 0,50 m (Institut national de l'information g\u00e9ographique et foresti\u00e8re), RGF93 / Lambert-93 EPSG:2154, altitudes IGN69", "elevation_vertical_datum": "IGN69", "elevation_tile_ids": [ "E1191-N6180", "E1191-N6181" ], "elevation_blocks": [ "21LHDCorseUS@2025-04-02" ], "ign_dalles": [ "LHD_FXX_1191_6181_MNT_O_0M50_LAMB93_IGN78", "LHD_FXX_1191_6182_MNT_O_0M50_LAMB93_IGN78" ], "ign_missions": [ "21LHDCorseUS" ], "ign_editions": [ "2025-04-02" ], "ign_dsm_edition": { "LHD_FXX_1191_6181_MNT_O_0M50_LAMB93_IGN78": "2025-04-02", "LHD_FXX_1191_6182_MNT_O_0M50_LAMB93_IGN78": "2025-04-02" }, "climb_origin": "discovered", "structure_own_ways": 2, "carriageway": { "stations": 25, "stations_resolved": 25, "width_median_m": 4.25, "width_p10_m": 2.75, "width_min_m": 1.25, "width_max_m": 12.0, "bounded_share": 0.52, "unbounded_share": 0.48, "confidence_median": 0.544, "width_median_bounded_m": 4.25, "window_m": [ 224.0, 249.0 ], "width_at_max25_m": 2.75, "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": 25, "stations_resolved": 25, "width_median_m": 4.5, "width_p10_m": 1.1, "width_min_m": 0.5, "width_max_m": 12.0, "bounded_share": 0.88, "unbounded_share": 0.12, "confidence_median": 1.0, "width_median_bounded_m": 3.62, "window_m": [ 224.0, 249.0 ], "width_at_max25_m": 3.0, "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 } }, "license": "ODbL-1.0", "license_url": "https://howsteep.org/licensing" }, "area": { "place": "Speloncato", "county": "Haute-Corse", "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)" } }