{ "ocl_version": "0.1.0", "name": "Chemin de Pujaou", "slug": "chemin-de-pujaou", "confidence": "A", "reported_claims": [], "ladder": [ { "window_m": 2.0, "max_gradient_pct": 22.923918022189582, "diagnostic": true, "flags": [], "start_distance_m": 2180.0, "end_distance_m": 2182.0, "start_elevation_m": 632.0310276933343, "end_elevation_m": 632.4895060537781, "min_gradient_pct": -12.541796179942821 }, { "window_m": 3.0, "max_gradient_pct": 22.661136216254363, "diagnostic": true, "flags": [], "start_distance_m": 2187.0, "end_distance_m": 2190.0, "start_elevation_m": 633.5680343609772, "end_elevation_m": 634.2478684474648, "min_gradient_pct": -9.589500562325762 }, { "window_m": 5.0, "max_gradient_pct": 22.29768847499372, "diagnostic": false, "flags": [], "start_distance_m": 2180.0, "end_distance_m": 2185.0, "start_elevation_m": 632.0310276933343, "end_elevation_m": 633.145912117084, "min_gradient_pct": -8.925433944532415 }, { "window_m": 10.0, "max_gradient_pct": 22.16840754130544, "diagnostic": false, "flags": [], "start_distance_m": 2180.0, "end_distance_m": 2190.0, "start_elevation_m": 632.0310276933343, "end_elevation_m": 634.2478684474648, "min_gradient_pct": -7.375760150168844 }, { "window_m": 20.0, "max_gradient_pct": 21.39365657853375, "diagnostic": false, "flags": [], "start_distance_m": 2170.0, "end_distance_m": 2190.0, "start_elevation_m": 629.9691371317581, "end_elevation_m": 634.2478684474648, "min_gradient_pct": -5.886350556575621 }, { "window_m": 25.0, "max_gradient_pct": 21.337503619764448, "diagnostic": false, "flags": [], "start_distance_m": 2169.0, "end_distance_m": 2194.0, "start_elevation_m": 629.7468920959617, "end_elevation_m": 635.0812680009028, "min_gradient_pct": -4.277966595050202 }, { "window_m": 50.0, "max_gradient_pct": 20.64374433779244, "diagnostic": false, "flags": [], "start_distance_m": 2148.0, "end_distance_m": 2198.0, "start_elevation_m": 625.5716467389244, "end_elevation_m": 635.8935189078206, "min_gradient_pct": -1.3784084393569174 }, { "window_m": 100.0, "max_gradient_pct": 20.088231933980296, "diagnostic": false, "flags": [], "start_distance_m": 2098.0, "end_distance_m": 2198.0, "start_elevation_m": 615.8052869738403, "end_elevation_m": 635.8935189078206, "min_gradient_pct": 0.8736274622947349 } ], "shape": { "ascent_concentration": 0.32, "concentration_window_frac": 0.25, "longest_pitch_10pct_m": 206.0, "shape_class": "sustained" }, "length_m": 3231.7472004485303, "start_elevation_m": 439.4106001001113, "end_elevation_m": 733.8873178046771, "endpoint_gain_m": 294.4767177045658, "overall_gradient_pct": 9.111997301759732, "accumulated_ascent_m": 296.95241263382866, "window_maxima": { "max_5m": { "gradient_pct": 22.29768847499372, "start_distance_m": 2180.0, "end_distance_m": 2185.0, "midpoint_distance_m": 2182.5, "start_elevation_m": 632.0310276933343, "end_elevation_m": 633.145912117084, "start_xy": [ 549516.0851044958, 6207733.655830011 ], "end_xy": [ 549514.2164210337, 6207738.293504225 ] }, "max_10m": { "gradient_pct": 22.16840754130544, "start_distance_m": 2180.0, "end_distance_m": 2190.0, "midpoint_distance_m": 2185.0, "start_elevation_m": 632.0310276933343, "end_elevation_m": 634.2478684474648, "start_xy": [ 549516.0851044958, 6207733.655830011 ], "end_xy": [ 549512.3477375716, 6207742.931178439 ] }, "max_20m": { "gradient_pct": 21.39365657853375, "start_distance_m": 2170.0, "end_distance_m": 2190.0, "midpoint_distance_m": 2180.0, "start_elevation_m": 629.9691371317581, "end_elevation_m": 634.2478684474648, "start_xy": [ 549519.4540727789, 6207724.2405259125 ], "end_xy": [ 549512.3477375716, 6207742.931178439 ] }, "max_25m": { "gradient_pct": 21.337503619764448, "start_distance_m": 2169.0, "end_distance_m": 2194.0, "midpoint_distance_m": 2181.5, "start_elevation_m": 629.7468920959617, "end_elevation_m": 635.0812680009028, "start_xy": [ 549519.7904711236, 6207723.298806127 ], "end_xy": [ 549510.8527908019, 6207746.641317811 ] }, "max_50m": { "gradient_pct": 20.64374433779244, "start_distance_m": 2148.0, "end_distance_m": 2198.0, "midpoint_distance_m": 2173.0, "start_elevation_m": 625.5716467389244, "end_elevation_m": 635.8935189078206, "start_xy": [ 549528.7054955158, 6207704.305952307 ], "end_xy": [ 549509.3578440322, 6207750.351457182 ] }, "max_100m": { "gradient_pct": 20.088231933980296, "start_distance_m": 2098.0, "end_distance_m": 2198.0, "midpoint_distance_m": 2148.0, "start_elevation_m": 615.8052869738403, "end_elevation_m": 635.8935189078206, "start_xy": [ 549528.3603469997, 6207655.069160197 ], "end_xy": [ 549509.3578440322, 6207750.351457182 ] } }, "window_minima": { "min_5m": { "gradient_pct": -8.925433944532415, "start_distance_m": 3222.0, "end_distance_m": 3227.0, "midpoint_distance_m": 3224.5, "start_elevation_m": 734.6698399820438, "end_elevation_m": 734.2235682848171, "start_xy": [ 548805.6325363198, 6207979.544046624 ], "end_xy": [ 548807.648224671, 6207974.968349904 ] }, "min_10m": { "gradient_pct": -7.375760150168844, "start_distance_m": 3221.0, "end_distance_m": 3231.0, "midpoint_distance_m": 3226.0, "start_elevation_m": 734.675677525073, "end_elevation_m": 733.9381015100561, "start_xy": [ 548805.2293986495, 6207980.459185967 ], "end_xy": [ 548809.260775352, 6207971.3077925285 ] }, "min_20m": { "gradient_pct": -5.886350556575621, "start_distance_m": 3211.0, "end_distance_m": 3231.0, "midpoint_distance_m": 3221.0, "start_elevation_m": 735.1153716213712, "end_elevation_m": 733.9381015100561, "start_xy": [ 548801.198021947, 6207989.610579407 ], "end_xy": [ 548809.260775352, 6207971.3077925285 ] }, "min_25m": { "gradient_pct": -4.277966595050202, "start_distance_m": 3206.0, "end_distance_m": 3231.0, "midpoint_distance_m": 3218.5, "start_elevation_m": 735.0075931588186, "end_elevation_m": 733.9381015100561, "start_xy": [ 548799.773595775, 6207994.343628057 ], "end_xy": [ 548809.260775352, 6207971.3077925285 ] }, "min_50m": { "gradient_pct": -1.3784084393569174, "start_distance_m": 2625.0, "end_distance_m": 2675.0, "midpoint_distance_m": 2650.0, "start_elevation_m": 681.0555120907255, "end_elevation_m": 680.3663078710471, "start_xy": [ 549176.1355114062, 6207979.898413675 ], "end_xy": [ 549126.488501994, 6207974.871525532 ] }, "min_100m": { "gradient_pct": 0.8736274622947349, "start_distance_m": 2596.0, "end_distance_m": 2696.0, "midpoint_distance_m": 2646.0, "start_elevation_m": 680.0499912660147, "end_elevation_m": 680.9236187283094, "start_xy": [ 549204.7510599945, 6207975.282554163 ], "end_xy": [ 549106.1073532986, 6207979.398347564 ] } }, "diagnostic_window_maxima": { "max_2m": { "gradient_pct": 22.923918022189582, "start_distance_m": 2180.0, "end_distance_m": 2182.0, "midpoint_distance_m": 2181.0, "start_elevation_m": 632.0310276933343, "end_elevation_m": 632.4895060537781, "start_xy": [ 549516.0851044958, 6207733.655830011 ], "end_xy": [ 549515.3376311109, 6207735.5108996965 ] }, "max_3m": { "gradient_pct": 22.661136216254363, "start_distance_m": 2187.0, "end_distance_m": 2190.0, "midpoint_distance_m": 2188.5, "start_elevation_m": 633.5680343609772, "end_elevation_m": 634.2478684474648, "start_xy": [ 549513.4689476488, 6207740.148573911 ], "end_xy": [ 549512.3477375716, 6207742.931178439 ] } }, "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": { "structure_suppression": { "masked_fraction": 0.006, "windows_resited": [], "windows_unresolved": [], "minima_resited": [], "minima_unresolved": [] }, "overhead_obstruction": { "obstruction_threshold_m": 2.0, "obstructed_fraction": 0.196, "obstruction_max_height_m": 25.72, "flagged_windows_m": [] }, "excluded_ranges_m": [ [ 0.0, 20.0 ] ], "review": [], "extent": [ "may_start_earlier", "descends_at_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-pyr3", "road_pbf": "block-batch-fr-pyr3.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": "sha256:79dd257545ed11dc" }, "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_E548-N6207_0m5@22LHD1IR-2025-03-20.tif", "data/cache/fr/ign-lidarhd_dtm_E548-N6208_0m5@22LHD1IR-2025-03-20.tif", "data/cache/fr/ign-lidarhd_dtm_E549-N6207_0m5@22LHD1IR-2025-03-20.tif", "data/cache/fr/ign-lidarhd_dtm_E549-N6208_0m5@22LHD1IR-2025-03-20.tif", "data/cache/fr/ign-lidarhd_dtm_E549-N6209_0m5@22LHD1IR-2025-03-20.tif" ], "calculated_at": "2026-09-20T06:18:42+00:00", "road_source": "OpenStreetMap (local PBF extract)", "road_attribution": "\u00a9 OpenStreetMap contributors, ODbL", "osm_pbf_path": "data/cache/pbf/block-batch-fr-pyr3.osm.pbf", "osm_snapshot": "", "run_id": "fr-pyr3", "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": [ "E548-N6207", "E548-N6208", "E549-N6207", "E549-N6208", "E549-N6209" ], "elevation_blocks": [ "22LHD1IR@2025-03-20" ], "ign_dalles": [ "LHD_FXX_0548_6208_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0548_6209_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0549_6208_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0549_6209_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0549_6210_MNT_O_0M50_LAMB93_IGN69" ], "ign_missions": [ "22LHD1IR" ], "ign_editions": [ "2025-03-20" ], "ign_dsm_edition": { "LHD_FXX_0548_6208_MNT_O_0M50_LAMB93_IGN69": "2025-03-20", "LHD_FXX_0548_6209_MNT_O_0M50_LAMB93_IGN69": "2025-03-20", "LHD_FXX_0549_6208_MNT_O_0M50_LAMB93_IGN69": "2025-03-20", "LHD_FXX_0549_6209_MNT_O_0M50_LAMB93_IGN69": "2025-03-20", "LHD_FXX_0549_6210_MNT_O_0M50_LAMB93_IGN69": "2025-03-20" }, "climb_origin": "discovered", "structure_own_ways": 6, "structure_mask_ranges_m": [ [ 0.0, 15.0 ] ], "carriageway": { "stations": 136, "stations_resolved": 136, "width_median_m": 5.5, "width_p10_m": 3.25, "width_min_m": 1.25, "width_max_m": 12.0, "bounded_share": 0.441, "unbounded_share": 0.559, "confidence_median": 0.0, "width_median_bounded_m": 5.0, "window_m": [ 2169.0, 2194.0 ], "width_at_max25_m": 5.0, "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": 136, "stations_resolved": 136, "width_median_m": 6.0, "width_p10_m": 1.0, "width_min_m": 0.5, "width_max_m": 12.0, "bounded_share": 0.728, "unbounded_share": 0.272, "confidence_median": 1.0, "width_median_bounded_m": 5.0, "window_m": [ 2169.0, 2194.0 ], "width_at_max25_m": 5.25, "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": "Eycheil", "county": "Ari\u00e8ge", "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)" } }