{ "ocl_version": "0.1.0", "name": "Discovered lane (43.8978, 0.9375)", "slug": "discovered-lane-43-8978-0-9375", "confidence": "B", "reported_claims": [], "ladder": [ { "window_m": 2.0, "max_gradient_pct": 29.05214438358996, "diagnostic": true, "flags": [], "start_distance_m": 2037.0, "end_distance_m": 2039.0, "start_elevation_m": 248.25838041203085, "end_elevation_m": 248.83942329970264, "min_gradient_pct": -20.166654887160007 }, { "window_m": 3.0, "max_gradient_pct": 24.449323221295078, "diagnostic": true, "flags": [], "start_distance_m": 2036.0, "end_distance_m": 2039.0, "start_elevation_m": 248.1059436030638, "end_elevation_m": 248.83942329970264, "min_gradient_pct": -19.45535435866077 }, { "window_m": 5.0, "max_gradient_pct": 23.360152830687753, "diagnostic": false, "flags": [], "start_distance_m": 1802.0, "end_distance_m": 1807.0, "start_elevation_m": 225.03037094260023, "end_elevation_m": 226.19837858413462, "min_gradient_pct": -19.22472971456898 }, { "window_m": 10.0, "max_gradient_pct": 22.882785298354236, "diagnostic": false, "flags": [], "start_distance_m": 1795.0, "end_distance_m": 1805.0, "start_elevation_m": 223.4498295033753, "end_elevation_m": 225.73810803321072, "min_gradient_pct": -18.71191106455001 }, { "window_m": 20.0, "max_gradient_pct": 22.719917555426292, "diagnostic": false, "flags": [], "start_distance_m": 1786.0, "end_distance_m": 1806.0, "start_elevation_m": 221.42317743399488, "end_elevation_m": 225.96716094508014, "min_gradient_pct": -17.813136731752337 }, { "window_m": 25.0, "max_gradient_pct": 22.50031635652215, "diagnostic": false, "flags": [], "start_distance_m": 1784.0, "end_distance_m": 1809.0, "start_elevation_m": 221.00206496523876, "end_elevation_m": 226.6271440543693, "min_gradient_pct": -17.517979100751518 }, { "window_m": 50.0, "max_gradient_pct": 21.812169534533155, "diagnostic": false, "flags": [ "canopy_or_structure" ], "start_distance_m": 1785.0, "end_distance_m": 1835.0, "start_elevation_m": 221.20371757280725, "end_elevation_m": 232.10980234007383, "min_gradient_pct": -15.537687695666023 }, { "window_m": 100.0, "max_gradient_pct": 20.451312846904642, "diagnostic": false, "flags": [ "canopy_or_structure" ], "start_distance_m": 1751.0, "end_distance_m": 1851.0, "start_elevation_m": 214.74630732217273, "end_elevation_m": 235.19762016907737, "min_gradient_pct": -14.553836682698716 } ], "shape": { "ascent_concentration": 0.475, "concentration_window_frac": 0.25, "longest_pitch_10pct_m": 339.0, "shape_class": "stepped" }, "length_m": 2097.231933475691, "start_elevation_m": 165.40551201025417, "end_elevation_m": 250.22658560571725, "endpoint_gain_m": 84.82107359546308, "overall_gradient_pct": 4.044429814440751, "accumulated_ascent_m": 146.54186973913988, "window_maxima": { "max_5m": { "gradient_pct": 23.360152830687753, "start_distance_m": 1802.0, "end_distance_m": 1807.0, "midpoint_distance_m": 1804.5, "start_elevation_m": 225.03037094260023, "end_elevation_m": 226.19837858413462, "start_xy": [ 534537.5447758414, 6313545.107890037 ], "end_xy": [ 534540.4575507127, 6313549.171846552 ] }, "max_10m": { "gradient_pct": 22.882785298354236, "start_distance_m": 1795.0, "end_distance_m": 1805.0, "midpoint_distance_m": 1800.0, "start_elevation_m": 223.4498295033753, "end_elevation_m": 225.73810803321072, "start_xy": [ 534533.3538339387, 6313539.501928983 ], "end_xy": [ 534539.2924407643, 6313547.546263945 ] }, "max_20m": { "gradient_pct": 22.719917555426292, "start_distance_m": 1786.0, "end_distance_m": 1806.0, "midpoint_distance_m": 1796.0, "start_elevation_m": 221.42317743399488, "end_elevation_m": 225.96716094508014, "start_xy": [ 534527.8977786115, 6313532.34431344 ], "end_xy": [ 534539.8749957385, 6313548.359055249 ] }, "max_25m": { "gradient_pct": 22.50031635652215, "start_distance_m": 1784.0, "end_distance_m": 1809.0, "midpoint_distance_m": 1796.5, "start_elevation_m": 221.00206496523876, "end_elevation_m": 226.6271440543693, "start_xy": [ 534526.6853218722, 6313530.753732208 ], "end_xy": [ 534541.6226606613, 6313550.797429157 ] }, "max_50m": { "gradient_pct": 21.812169534533155, "start_distance_m": 1785.0, "end_distance_m": 1835.0, "midpoint_distance_m": 1810.0, "start_elevation_m": 221.20371757280725, "end_elevation_m": 232.10980234007383, "start_xy": [ 534527.2915502419, 6313531.5490228245 ], "end_xy": [ 534556.7690899927, 6313571.93000303 ] }, "max_100m": { "gradient_pct": 20.451312846904642, "start_distance_m": 1751.0, "end_distance_m": 1851.0, "midpoint_distance_m": 1801.0, "start_elevation_m": 214.74630732217273, "end_elevation_m": 235.19762016907737, "start_xy": [ 534504.8525307903, 6313506.374370416 ], "end_xy": [ 534566.4930758622, 6313584.567234229 ] } }, "window_minima": { "min_5m": { "gradient_pct": -19.22472971456898, "start_distance_m": 193.0, "end_distance_m": 198.0, "midpoint_distance_m": 195.5, "start_elevation_m": 168.0983635191513, "end_elevation_m": 167.13712703342284, "start_xy": [ 534111.639093643, 6312106.16243431 ], "end_xy": [ 534113.51966637, 6312110.777095777 ] }, "min_10m": { "gradient_pct": -18.71191106455001, "start_distance_m": 190.0, "end_distance_m": 200.0, "midpoint_distance_m": 195.0, "start_elevation_m": 168.66564611887284, "end_elevation_m": 166.79445501241784, "start_xy": [ 534110.8329190795, 6312103.272783367 ], "end_xy": [ 534114.3818341763, 6312112.58171947 ] }, "min_20m": { "gradient_pct": -17.813136731752337, "start_distance_m": 190.0, "end_distance_m": 210.0, "midpoint_distance_m": 200.0, "start_elevation_m": 168.66564611887284, "end_elevation_m": 165.10301877252238, "start_xy": [ 534110.8329190795, 6312103.272783367 ], "end_xy": [ 534118.6926732076, 6312121.604837935 ] }, "min_25m": { "gradient_pct": -17.517979100751518, "start_distance_m": 189.0, "end_distance_m": 214.0, "midpoint_distance_m": 201.5, "start_elevation_m": 168.83320425345298, "end_elevation_m": 164.4537094782651, "start_xy": [ 534110.5641942249, 6312102.309566386 ], "end_xy": [ 534120.4170088201, 6312125.214085322 ] }, "min_50m": { "gradient_pct": -15.537687695666023, "start_distance_m": 718.0, "end_distance_m": 768.0, "midpoint_distance_m": 743.0, "start_elevation_m": 161.49718208023944, "end_elevation_m": 153.72833823240643, "start_xy": [ 534174.5295527403, 6312586.947249327 ], "end_xy": [ 534148.2964289618, 6312629.105988246 ] }, "min_100m": { "gradient_pct": -14.553836682698716, "start_distance_m": 669.0, "end_distance_m": 769.0, "midpoint_distance_m": 719.0, "start_elevation_m": 168.16208559483027, "end_elevation_m": 153.60824891213156, "start_xy": [ 534210.1844350079, 6312554.880929784 ], "end_xy": [ 534147.8450562926, 6312629.998323784 ] } }, "diagnostic_window_maxima": { "max_2m": { "gradient_pct": 29.05214438358996, "start_distance_m": 2037.0, "end_distance_m": 2039.0, "midpoint_distance_m": 2038.0, "start_elevation_m": 248.25838041203085, "end_elevation_m": 248.83942329970264, "start_xy": [ 534703.9761349641, 6313640.260227941 ], "end_xy": [ 534702.3690715985, 6313641.388524022 ] }, "max_3m": { "gradient_pct": 24.449323221295078, "start_distance_m": 2036.0, "end_distance_m": 2039.0, "midpoint_distance_m": 2037.5, "start_elevation_m": 248.1059436030638, "end_elevation_m": 248.83942329970264, "start_xy": [ 534704.7477567346, 6313639.624146309 ], "end_xy": [ 534702.3690715985, 6313641.388524022 ] } }, "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": 0.041, "obstruction_max_height_m": 14.95, "flagged_windows_m": [ 50, 100 ] }, "review": [], "extent": [], "leading_descent_m": 22.3, "suggested_base_cut_m": 886 }, "provenance": { "analysis_version": "0.1.0", "run_manifest": { "manifest_version": "1", "code_git_sha": "16bcc1553fe58b280e0c4a66a3ab0980530490a6", "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-so6", "road_pbf": "block-batch-fr-so6.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": "sha256:18f786cf9fa98070" }, "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_E534-N6312_0m5@21LHD2HP-2025-04-08.tif", "data/cache/fr/ign-lidarhd_dtm_E534-N6313_0m5@21LHD2HP-2025-04-08.tif" ], "calculated_at": "2026-09-27T04:59:37+00:00", "road_source": "OpenStreetMap (local PBF extract)", "road_attribution": "\u00a9 OpenStreetMap contributors, ODbL", "osm_pbf_path": "data/cache/pbf/block-batch-fr-so6.osm.pbf", "osm_snapshot": "", "run_id": "fr-so6", "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": [ "E534-N6312", "E534-N6313" ], "elevation_blocks": [ "21LHD2HP@2025-04-08" ], "ign_dalles": [ "LHD_FXX_0534_6313_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0534_6314_MNT_O_0M50_LAMB93_IGN69" ], "ign_missions": [ "21LHD2HP" ], "ign_editions": [ "2025-04-08" ], "ign_dsm_edition": { "LHD_FXX_0534_6313_MNT_O_0M50_LAMB93_IGN69": "2025-04-08", "LHD_FXX_0534_6314_MNT_O_0M50_LAMB93_IGN69": "2025-04-08" }, "climb_origin": "discovered", "seam_filled_samples": { "count": 0, "distances_m": [] }, "seam_filled_in_maximum": false, "structure_own_ways": "none \u2014 the route carried no way list and no mapped way runs along it; own decks unmasked", "carriageway": { "stations": 90, "stations_resolved": 90, "width_median_m": 5.75, "width_p10_m": 4.5, "width_min_m": 3.0, "width_max_m": 9.75, "bounded_share": 0.2, "unbounded_share": 0.8, "confidence_median": 0.0, "width_median_bounded_m": 5.75, "window_m": [ 1784.0, 1809.0 ], "width_at_max25_m": 5.5, "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": 90, "stations_resolved": 90, "width_median_m": 9.5, "width_p10_m": 5.97, "width_min_m": 1.0, "width_max_m": 12.0, "bounded_share": 0.444, "unbounded_share": 0.556, "confidence_median": 0.0, "width_median_bounded_m": 7.75, "window_m": [ 1784.0, 1809.0 ], "width_at_max25_m": 11.25, "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": "Esparsac", "county": "Tarn-et-Garonne", "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)" } }