{ "ocl_version": "0.1.0", "name": "Discovered lane (43.2769, -0.4813)", "slug": "discovered-lane-43-2769-0-4813", "confidence": "B", "reported_claims": [], "ladder": [ { "window_m": 2.0, "max_gradient_pct": 27.083877232954023, "diagnostic": true, "flags": [ "canopy_or_structure" ], "start_distance_m": 216.0, "end_distance_m": 218.0, "start_elevation_m": 299.5633761465425, "end_elevation_m": 300.1050536912016, "min_gradient_pct": -3.6867210889283797 }, { "window_m": 3.0, "max_gradient_pct": 23.593169429498555, "diagnostic": true, "flags": [ "canopy_or_structure" ], "start_distance_m": 215.0, "end_distance_m": 218.0, "start_elevation_m": 299.39725860831663, "end_elevation_m": 300.1050536912016, "min_gradient_pct": -0.8075236337826178 }, { "window_m": 5.0, "max_gradient_pct": 22.049874896407573, "diagnostic": false, "flags": [], "start_distance_m": 138.0, "end_distance_m": 143.0, "start_elevation_m": 286.44367748016833, "end_elevation_m": 287.5461712249887, "min_gradient_pct": 0.6425624775522465 }, { "window_m": 10.0, "max_gradient_pct": 21.800421082645016, "diagnostic": false, "flags": [], "start_distance_m": 138.0, "end_distance_m": 148.0, "start_elevation_m": 286.44367748016833, "end_elevation_m": 288.62371958843283, "min_gradient_pct": 2.0849519517815907 }, { "window_m": 20.0, "max_gradient_pct": 21.14543999147486, "diagnostic": false, "flags": [], "start_distance_m": 134.0, "end_distance_m": 154.0, "start_elevation_m": 285.59062869893955, "end_elevation_m": 289.8197166972345, "min_gradient_pct": 8.497589289773657 }, { "window_m": 25.0, "max_gradient_pct": 20.76778275021502, "diagnostic": false, "flags": [], "start_distance_m": 134.0, "end_distance_m": 159.0, "start_elevation_m": 285.59062869893955, "end_elevation_m": 290.7825743864933, "min_gradient_pct": 9.273247105725432 }, { "window_m": 50.0, "max_gradient_pct": 19.62577240239034, "diagnostic": false, "flags": [], "start_distance_m": 117.0, "end_distance_m": 167.0, "start_elevation_m": 282.3708464064846, "end_elevation_m": 292.18373260767976, "min_gradient_pct": 9.68452731921684 }, { "window_m": 100.0, "max_gradient_pct": 17.666048051088637, "diagnostic": false, "flags": [ "canopy_or_structure" ], "start_distance_m": 96.0, "end_distance_m": 196.0, "start_elevation_m": 279.03132143294323, "end_elevation_m": 296.69736948403187, "min_gradient_pct": 11.206077745011214 } ], "shape": { "ascent_concentration": 0.347, "concentration_window_frac": 0.25, "longest_pitch_10pct_m": 148.0, "shape_class": "sustained" }, "length_m": 234.24507796815655, "start_elevation_m": 268.43203232322367, "end_elevation_m": 301.03212758793234, "endpoint_gain_m": 32.60009526470867, "overall_gradient_pct": 13.917088695088975, "accumulated_ascent_m": 32.706767155565615, "window_maxima": { "max_5m": { "gradient_pct": 22.049874896407573, "start_distance_m": 138.0, "end_distance_m": 143.0, "midpoint_distance_m": 140.5, "start_elevation_m": 286.44367748016833, "end_elevation_m": 287.5461712249887, "start_xy": [ 417346.4866115412, 6248185.554990559 ], "end_xy": [ 417349.71797634766, 6248181.739458946 ] }, "max_10m": { "gradient_pct": 21.800421082645016, "start_distance_m": 138.0, "end_distance_m": 148.0, "midpoint_distance_m": 143.0, "start_elevation_m": 286.44367748016833, "end_elevation_m": 288.62371958843283, "start_xy": [ 417346.4866115412, 6248185.554990559 ], "end_xy": [ 417352.9493411542, 6248177.923927333 ] }, "max_20m": { "gradient_pct": 21.14543999147486, "start_distance_m": 134.0, "end_distance_m": 154.0, "midpoint_distance_m": 144.0, "start_elevation_m": 285.59062869893955, "end_elevation_m": 289.8197166972345, "start_xy": [ 417343.90151969594, 6248188.607415848 ], "end_xy": [ 417356.5696853458, 6248173.156506384 ] }, "max_25m": { "gradient_pct": 20.76778275021502, "start_distance_m": 134.0, "end_distance_m": 159.0, "midpoint_distance_m": 146.5, "start_elevation_m": 285.59062869893955, "end_elevation_m": 290.7825743864933, "start_xy": [ 417343.90151969594, 6248188.607415848 ], "end_xy": [ 417359.23965836293, 6248168.92906696 ] }, "max_50m": { "gradient_pct": 19.62577240239034, "start_distance_m": 117.0, "end_distance_m": 167.0, "midpoint_distance_m": 142.0, "start_elevation_m": 282.3708464064846, "end_elevation_m": 292.18373260767976, "start_xy": [ 417332.91487935383, 6248201.580223332 ], "end_xy": [ 417363.51161519036, 6248162.16516388 ] }, "max_100m": { "gradient_pct": 17.666048051088637, "start_distance_m": 96.0, "end_distance_m": 196.0, "midpoint_distance_m": 146.0, "start_elevation_m": 279.03132143294323, "end_elevation_m": 296.69736948403187, "start_xy": [ 417320.9219139331, 6248218.774520174 ], "end_xy": [ 417381.98506688536, 6248139.932408965 ] } }, "window_minima": { "min_5m": { "gradient_pct": 0.6425624775522465, "start_distance_m": 228.0, "end_distance_m": 233.0, "midpoint_distance_m": 230.5, "start_elevation_m": 300.8505195231819, "end_elevation_m": 300.8826476470595, "start_xy": [ 417407.5930992748, 6248121.353634068 ], "end_xy": [ 417412.2102559817, 6248119.434815696 ] }, "min_10m": { "gradient_pct": 2.0849519517815907, "start_distance_m": 222.0, "end_distance_m": 232.0, "midpoint_distance_m": 227.0, "start_elevation_m": 300.67805602904406, "end_elevation_m": 300.8865512242222, "start_xy": [ 417402.0525112265, 6248123.656216114 ], "end_xy": [ 417411.28682464035, 6248119.818579371 ] }, "min_20m": { "gradient_pct": 8.497589289773657, "start_distance_m": 214.0, "end_distance_m": 234.0, "midpoint_distance_m": 224.0, "start_elevation_m": 299.27854228706116, "end_elevation_m": 300.9780601450159, "start_xy": [ 417395.44377088203, 6248128.107689353 ], "end_xy": [ 417413.13368732313, 6248119.051052022 ] }, "min_25m": { "gradient_pct": 9.273247105725432, "start_distance_m": 35.0, "end_distance_m": 60.0, "midpoint_distance_m": 47.5, "start_elevation_m": 272.94964457043216, "end_elevation_m": 275.2679563468635, "start_xy": [ 417281.9917671435, 6248263.372750205 ], "end_xy": [ 417300.87304677477, 6248248.664622024 ] }, "min_50m": { "gradient_pct": 9.68452731921684, "start_distance_m": 34.0, "end_distance_m": 84.0, "midpoint_distance_m": 59.0, "start_elevation_m": 272.8531217243134, "end_elevation_m": 277.6953853839218, "start_xy": [ 417280.9939653723, 6248263.439019545 ], "end_xy": [ 417314.4252687953, 6248228.863801712 ] }, "min_100m": { "gradient_pct": 11.206077745011214, "start_distance_m": 5.0, "end_distance_m": 105.0, "midpoint_distance_m": 55.0, "start_elevation_m": 269.2276198550566, "end_elevation_m": 280.43369760006783, "start_xy": [ 417252.707271847, 6248258.348061921 ], "end_xy": [ 417325.7943977865, 6248211.20755902 ] } }, "diagnostic_window_maxima": { "max_2m": { "gradient_pct": 27.083877232954023, "start_distance_m": 216.0, "end_distance_m": 218.0, "midpoint_distance_m": 217.0, "start_elevation_m": 299.5633761465425, "end_elevation_m": 300.1050536912016, "start_xy": [ 417397.05655392376, 6248126.924925276 ], "end_xy": [ 417398.6693369655, 6248125.7421612 ] }, "max_3m": { "gradient_pct": 23.593169429498555, "start_distance_m": 215.0, "end_distance_m": 218.0, "midpoint_distance_m": 216.5, "start_elevation_m": 299.39725860831663, "end_elevation_m": 300.1050536912016, "start_xy": [ 417396.25016240287, 6248127.516307315 ], "end_xy": [ 417398.6693369655, 6248125.7421612 ] } }, "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": 0.199, "obstruction_max_height_m": 13.83, "flagged_windows_m": [ 2, 3, 100 ] }, "review": [], "extent": [ "may_start_earlier", "may_continue_beyond_end" ] }, "provenance": { "analysis_version": "0.1.0", "run_manifest": { "manifest_version": "1", "code_git_sha": "06fa4c370391597f015858e97dcf01ca2f5b3640", "code_git_dirty": "false", "analysis_version": "0.1.0", "analysis_config_digest": "sha256:0048c2bbb24ab95e", "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-pyr1", "road_pbf": "block-batch-fr-pyr1.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:c54ac68b3f57b41b" }, "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_E417-N6248_0m5@21LHD1FQ-2025-09-15.tif" ], "calculated_at": "2026-09-20T06:06:46+00:00", "road_source": "OpenStreetMap (local PBF extract)", "road_attribution": "\u00a9 OpenStreetMap contributors, ODbL", "osm_pbf_path": "data/cache/pbf/block-batch-fr-pyr1.osm.pbf", "osm_snapshot": "", "run_id": "fr-pyr1", "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": [ "E417-N6248" ], "elevation_blocks": [ "21LHD1FQ@2025-09-15" ], "ign_dalles": [ "LHD_FXX_0417_6249_MNT_O_0M50_LAMB93_IGN69" ], "ign_missions": [ "21LHD1FQ" ], "ign_editions": [ "2025-09-15" ], "ign_dsm_edition": { "LHD_FXX_0417_6249_MNT_O_0M50_LAMB93_IGN69": "2025-09-15" }, "climb_origin": "discovered", "structure_own_ways": "none \u2014 the route carried no way list; own decks unmasked", "carriageway": { "stations": 16, "stations_resolved": 16, "width_median_m": 4.75, "width_p10_m": 3.75, "width_min_m": 3.0, "width_max_m": 9.5, "bounded_share": 0.25, "unbounded_share": 0.75, "confidence_median": 0.0, "width_median_bounded_m": 4.75, "window_m": [ 134.0, 159.0 ], "width_at_max25_m": 4.5, "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": 16, "stations_resolved": 16, "width_median_m": 6.5, "width_p10_m": 0.88, "width_min_m": 0.5, "width_max_m": 11.25, "bounded_share": 0.625, "unbounded_share": 0.375, "confidence_median": 1.0, "width_median_bounded_m": 4.5, "window_m": [ 134.0, 159.0 ], "width_at_max25_m": 7.0, "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": "Aubertin", "county": "Pyr\u00e9n\u00e9es-Atlantiques", "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)" } }