{ "ocl_version": "0.1.0", "name": "Col d'Uglas from Mialet", "slug": "col-d-uglas-from-mialet", "confidence": "B", "reported_claims": [], "ladder": [ { "window_m": 2.0, "max_gradient_pct": 41.681119816256285, "diagnostic": true, "flags": [ "structure_excluded", "structure_excluded_min", "canopy_or_structure" ], "start_distance_m": 441.0, "end_distance_m": 443.0, "start_elevation_m": 240.6995705343691, "end_elevation_m": 241.5331929306942, "min_gradient_pct": -44.255872102206695, "suppressed_max_gradient_pct": 177.1819040394803, "suppressed_location_m": [ 4762.0, 4764.0 ], "suppressed_min_gradient_pct": -224.13304217829477, "suppressed_min_location_m": [ 5071.0, 5073.0 ] }, { "window_m": 3.0, "max_gradient_pct": 29.06177796047018, "diagnostic": true, "flags": [ "structure_excluded", "structure_excluded_min", "canopy_or_structure" ], "start_distance_m": 891.0, "end_distance_m": 894.0, "start_elevation_m": 264.7164487906728, "end_elevation_m": 265.5883021294869, "min_gradient_pct": -35.764762014215044, "suppressed_max_gradient_pct": 158.87762010758215, "suppressed_location_m": [ 4761.0, 4764.0 ], "suppressed_min_gradient_pct": -190.20970380191025, "suppressed_min_location_m": [ 5070.0, 5073.0 ] }, { "window_m": 5.0, "max_gradient_pct": 26.239309871840533, "diagnostic": false, "flags": [ "structure_excluded", "structure_excluded_min", "canopy_or_structure" ], "start_distance_m": 887.0, "end_distance_m": 892.0, "start_elevation_m": 263.96445536423323, "end_elevation_m": 265.27642085782526, "min_gradient_pct": -24.018857783056546, "suppressed_max_gradient_pct": 110.40600894972158, "suppressed_location_m": [ 5075.0, 5080.0 ], "suppressed_min_gradient_pct": -131.96627191158655, "suppressed_min_location_m": [ 2658.0, 2663.0 ] }, { "window_m": 10.0, "max_gradient_pct": 19.797681446394222, "diagnostic": false, "flags": [ "structure_excluded", "structure_excluded_min", "canopy_or_structure" ], "start_distance_m": 888.0, "end_distance_m": 898.0, "start_elevation_m": 264.2098011852539, "end_elevation_m": 266.18956932989335, "min_gradient_pct": -13.01823182156852, "suppressed_max_gradient_pct": 67.20641297208374, "suppressed_location_m": [ 5074.0, 5084.0 ], "suppressed_min_gradient_pct": -95.98868208529211, "suppressed_min_location_m": [ 2653.0, 2663.0 ] }, { "window_m": 20.0, "max_gradient_pct": 14.053277259054937, "diagnostic": false, "flags": [ "structure_excluded", "structure_excluded_min", "canopy_or_structure" ], "start_distance_m": 886.0, "end_distance_m": 906.0, "start_elevation_m": 263.85008691535467, "end_elevation_m": 266.66074236716565, "min_gradient_pct": -3.7666576464832247, "suppressed_max_gradient_pct": 37.64370827002523, "suppressed_location_m": [ 5074.0, 5094.0 ], "suppressed_min_gradient_pct": -45.623591006961135, "suppressed_min_location_m": [ 2644.0, 2664.0 ] }, { "window_m": 25.0, "max_gradient_pct": 12.327750546625111, "diagnostic": false, "flags": [ "structure_excluded", "structure_excluded_min", "canopy_or_structure" ], "start_distance_m": 886.0, "end_distance_m": 911.0, "start_elevation_m": 263.85008691535467, "end_elevation_m": 266.93202455201094, "min_gradient_pct": -2.238328343194553, "suppressed_max_gradient_pct": 31.852481337648214, "suppressed_location_m": [ 5074.0, 5099.0 ], "suppressed_min_gradient_pct": -35.13174966093129, "suppressed_min_location_m": [ 2639.0, 2664.0 ] }, { "window_m": 50.0, "max_gradient_pct": 8.854546781962654, "diagnostic": false, "flags": [ "structure_excluded", "structure_excluded_min", "canopy_or_structure" ], "start_distance_m": 441.0, "end_distance_m": 491.0, "start_elevation_m": 240.6995705343691, "end_elevation_m": 245.1268439253504, "min_gradient_pct": 1.7695514025143666, "suppressed_max_gradient_pct": 26.129514200839935, "suppressed_location_m": [ 2663.0, 2713.0 ], "suppressed_min_gradient_pct": -14.532508670839661, "suppressed_min_location_m": [ 2614.0, 2664.0 ] }, { "window_m": 100.0, "max_gradient_pct": 7.902393413534412, "diagnostic": false, "flags": [ "structure_excluded", "structure_excluded_min", "canopy_or_structure" ], "start_distance_m": 449.0, "end_distance_m": 549.0, "start_elevation_m": 241.2829953846207, "end_elevation_m": 249.18538879815512, "min_gradient_pct": 3.3376131590579234, "suppressed_max_gradient_pct": 15.064609122810452, "suppressed_location_m": [ 2663.0, 2763.0 ], "suppressed_min_gradient_pct": -4.170999824636965, "suppressed_min_location_m": [ 2564.0, 2664.0 ] } ], "shape": { "ascent_concentration": 0.293, "concentration_window_frac": 0.25, "longest_pitch_10pct_m": 50.0, "shape_class": "sustained" }, "length_m": 5554.71932741721, "start_elevation_m": 217.3908125617594, "end_elevation_m": 538.8724240663864, "endpoint_gain_m": 321.48161150462704, "overall_gradient_pct": 5.7875401537904, "accumulated_ascent_m": 379.7893534388671, "window_maxima": { "max_5m": { "gradient_pct": 26.239309871840533, "start_distance_m": 887.0, "end_distance_m": 892.0, "midpoint_distance_m": 889.5, "start_elevation_m": 263.96445536423323, "end_elevation_m": 265.27642085782526, "start_xy": [ 773184.5567167568, 6337101.933158942 ], "end_xy": [ 773180.6775924774, 6337098.7784173 ] }, "max_10m": { "gradient_pct": 19.797681446394222, "start_distance_m": 888.0, "end_distance_m": 898.0, "midpoint_distance_m": 893.0, "start_elevation_m": 264.2098011852539, "end_elevation_m": 266.18956932989335, "start_xy": [ 773183.7808919009, 6337101.302210613 ], "end_xy": [ 773176.022643342, 6337094.992727331 ] }, "max_20m": { "gradient_pct": 14.053277259054937, "start_distance_m": 886.0, "end_distance_m": 906.0, "midpoint_distance_m": 896.0, "start_elevation_m": 263.85008691535467, "end_elevation_m": 266.66074236716565, "start_xy": [ 773185.3325416127, 6337102.56410727 ], "end_xy": [ 773169.8160444949, 6337089.9451407045 ] }, "max_25m": { "gradient_pct": 12.327750546625111, "start_distance_m": 886.0, "end_distance_m": 911.0, "midpoint_distance_m": 898.5, "start_elevation_m": 263.85008691535467, "end_elevation_m": 266.93202455201094, "start_xy": [ 773185.3325416127, 6337102.56410727 ], "end_xy": [ 773165.6092330222, 6337087.394611965 ] }, "max_50m": { "gradient_pct": 8.854546781962654, "start_distance_m": 441.0, "end_distance_m": 491.0, "midpoint_distance_m": 466.0, "start_elevation_m": 240.6995705343691, "end_elevation_m": 245.1268439253504, "start_xy": [ 773319.1802439528, 6337083.934154808 ], "end_xy": [ 773307.8833732827, 6337132.446083957 ] }, "max_100m": { "gradient_pct": 7.902393413534412, "start_distance_m": 449.0, "end_distance_m": 549.0, "midpoint_distance_m": 499.0, "start_elevation_m": 241.2829953846207, "end_elevation_m": 249.18538879815512, "start_xy": [ 773317.1003605099, 6337091.659055121 ], "end_xy": [ 773352.3936655218, 6337147.994465491 ] } }, "window_minima": { "min_5m": { "gradient_pct": -24.018857783056546, "start_distance_m": 880.0, "end_distance_m": 885.0, "midpoint_distance_m": 882.5, "start_elevation_m": 265.15782037144885, "end_elevation_m": 263.956877482296, "start_xy": [ 773189.1727441892, 6337107.039796954 ], "end_xy": [ 773186.1083664686, 6337103.195055598 ] }, "min_10m": { "gradient_pct": -13.01823182156852, "start_distance_m": 876.0, "end_distance_m": 886.0, "midpoint_distance_m": 881.0, "start_elevation_m": 265.1519100975115, "end_elevation_m": 263.85008691535467, "start_xy": [ 773191.1510545426, 6337110.516330881 ], "end_xy": [ 773185.3325416127, 6337102.56410727 ] }, "min_20m": { "gradient_pct": -3.7666576464832247, "start_distance_m": 866.0, "end_distance_m": 886.0, "midpoint_distance_m": 876.0, "start_elevation_m": 264.6034184446513, "end_elevation_m": 263.85008691535467, "start_xy": [ 773196.0968304262, 6337119.207665699 ], "end_xy": [ 773185.3325416127, 6337102.56410727 ] }, "min_25m": { "gradient_pct": -2.238328343194553, "start_distance_m": 861.0, "end_distance_m": 886.0, "midpoint_distance_m": 873.5, "start_elevation_m": 264.4096690011533, "end_elevation_m": 263.85008691535467, "start_xy": [ 773197.721317513, 6337123.870531777 ], "end_xy": [ 773185.3325416127, 6337102.56410727 ] }, "min_50m": { "gradient_pct": 1.7695514025143666, "start_distance_m": 836.0, "end_distance_m": 886.0, "midpoint_distance_m": 861.0, "start_elevation_m": 262.9653112140975, "end_elevation_m": 263.85008691535467, "start_xy": [ 773202.644553745, 6337148.380973327 ], "end_xy": [ 773185.3325416127, 6337102.56410727 ] }, "min_100m": { "gradient_pct": 3.3376131590579234, "start_distance_m": 786.0, "end_distance_m": 886.0, "midpoint_distance_m": 836.0, "start_elevation_m": 260.51247375629674, "end_elevation_m": 263.85008691535467, "start_xy": [ 773213.5978196851, 6337197.081731099 ], "end_xy": [ 773185.3325416127, 6337102.56410727 ] } }, "diagnostic_window_maxima": { "max_2m": { "gradient_pct": 41.681119816256285, "start_distance_m": 441.0, "end_distance_m": 443.0, "midpoint_distance_m": 442.0, "start_elevation_m": 240.6995705343691, "end_elevation_m": 241.5331929306942, "start_xy": [ 773319.1802439528, 6337083.934154808 ], "end_xy": [ 773318.6602730921, 6337085.865379886 ] }, "max_3m": { "gradient_pct": 29.06177796047018, "start_distance_m": 891.0, "end_distance_m": 894.0, "midpoint_distance_m": 892.5, "start_elevation_m": 264.7164487906728, "end_elevation_m": 265.5883021294869, "start_xy": [ 773181.4534173332, 6337099.409365629 ], "end_xy": [ 773179.1259427656, 6337097.516520644 ] } }, "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": 0.051, "windows_resited": [ 2.0, 3.0, 5.0, 10.0, 20.0, 25.0, 50.0, 100.0 ], "windows_unresolved": [], "minima_resited": [ 2.0, 3.0, 5.0, 10.0, 20.0, 25.0, 50.0, 100.0 ], "minima_unresolved": [] }, "overhead_obstruction": { "obstruction_threshold_m": 2.0, "obstructed_fraction": 0.206, "obstruction_max_height_m": 21.55, "flagged_windows_m": [ 2, 3, 5, 10, 20, 25, 50, 100 ] }, "excluded_ranges_m": [ [ 588.0, 624.0 ], [ 738.0, 756.0 ], [ 769.0, 778.0 ], [ 1669.0, 1690.0 ], [ 1771.0, 1780.0 ], [ 1821.0, 1834.0 ], [ 1893.0, 1898.0 ], [ 2031.0, 2040.0 ], [ 2311.0, 2331.0 ], [ 2654.0, 2704.0 ], [ 4200.0, 4219.0 ], [ 4750.0, 4769.0 ], [ 5065.0, 5086.0 ], [ 5352.0, 5373.0 ] ], "review": [], "extent": [] }, "provenance": { "analysis_version": "0.1.0", "run_manifest": { "manifest_version": "1", "code_git_sha": "1cc9fdcd6556a02163cb21acb2293cad3067d2a1", "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-mc6", "road_pbf": "block-batch-fr-mc6.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:af4eae1f5df9e232" }, "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_E772-N6336_0m5@21LHD4MO-2024-12-13.tif", "data/cache/fr/ign-lidarhd_dtm_E772-N6337_0m5@21LHD4MO-2024-12-13.tif", "data/cache/fr/ign-lidarhd_dtm_E773-N6336_0m5@21LHD4MO-2024-12-13.tif", "data/cache/fr/ign-lidarhd_dtm_E773-N6337_0m5@21LHD4MO-2024-12-13.tif", "data/cache/fr/ign-lidarhd_dtm_E773-N6338_0m5@21LHD4MO-2024-12-13.tif", "data/cache/fr/ign-lidarhd_dtm_E774-N6337_0m5@21LHD4MO-2024-12-13.tif", "data/cache/fr/ign-lidarhd_dtm_E774-N6338_0m5@21LHD4MO-2024-12-13.tif" ], "calculated_at": "2026-09-22T17:30:18+00:00", "road_source": "OpenStreetMap (local PBF extract)", "road_attribution": "\u00a9 OpenStreetMap contributors, ODbL", "osm_pbf_path": "data/cache/pbf/block-batch-fr-mc6.osm.pbf", "osm_snapshot": "", "run_id": "fr-mc6", "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": [ "E772-N6336", "E772-N6337", "E773-N6336", "E773-N6337", "E773-N6338", "E774-N6337", "E774-N6338" ], "elevation_blocks": [ "21LHD4MO@2024-12-13" ], "ign_dalles": [ "LHD_FXX_0772_6337_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0772_6338_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0773_6337_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0773_6338_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0773_6339_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0774_6338_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0774_6339_MNT_O_0M50_LAMB93_IGN69" ], "ign_missions": [ "21LHD4MO" ], "ign_editions": [ "2024-12-13" ], "ign_dsm_edition": { "LHD_FXX_0772_6337_MNT_O_0M50_LAMB93_IGN69": "2024-12-13", "LHD_FXX_0772_6338_MNT_O_0M50_LAMB93_IGN69": "2024-12-13", "LHD_FXX_0773_6337_MNT_O_0M50_LAMB93_IGN69": "2024-12-13", "LHD_FXX_0773_6338_MNT_O_0M50_LAMB93_IGN69": "2024-12-13", "LHD_FXX_0773_6339_MNT_O_0M50_LAMB93_IGN69": "2024-12-13", "LHD_FXX_0774_6338_MNT_O_0M50_LAMB93_IGN69": "2024-12-13", "LHD_FXX_0774_6339_MNT_O_0M50_LAMB93_IGN69": "2024-12-13" }, "climb_origin": "named-pass", "structure_own_ways": 11, "structure_mask_ranges_m": [ [ 593.5, 619.3 ], [ 2683.9, 2699.1 ] ], "carriageway": { "stations": 229, "stations_resolved": 229, "width_median_m": 5.25, "width_p10_m": 3.45, "width_min_m": 0.5, "width_max_m": 12.0, "bounded_share": 0.52, "unbounded_share": 0.48, "confidence_median": 0.532, "width_median_bounded_m": 5.25, "window_m": [ 886.0, 911.0 ], "width_at_max25_m": 1.25, "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": 229, "stations_resolved": 229, "width_median_m": 5.0, "width_p10_m": 0.95, "width_min_m": 0.0, "width_max_m": 12.0, "bounded_share": 0.856, "unbounded_share": 0.144, "confidence_median": 1.0, "width_median_bounded_m": 4.25, "window_m": [ 886.0, 911.0 ], "width_at_max25_m": 1.0, "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": "Mialet", "county": "Gard", "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)" } }