{ "ocl_version": "0.1.0", "name": "Chemin Urrustoy", "slug": "chemin-urrustoy", "confidence": "B", "reported_claims": [], "ladder": [ { "window_m": 2.0, "max_gradient_pct": 22.453810561279397, "diagnostic": true, "flags": [], "start_distance_m": 267.0, "end_distance_m": 269.0, "start_elevation_m": 269.8941109578483, "end_elevation_m": 270.3431871690739, "min_gradient_pct": 2.925394304384099 }, { "window_m": 3.0, "max_gradient_pct": 22.458575861118863, "diagnostic": true, "flags": [], "start_distance_m": 266.0, "end_distance_m": 269.0, "start_elevation_m": 269.6694298932403, "end_elevation_m": 270.3431871690739, "min_gradient_pct": 3.2769862706572894 }, { "window_m": 5.0, "max_gradient_pct": 22.116763290845256, "diagnostic": false, "flags": [], "start_distance_m": 266.0, "end_distance_m": 271.0, "start_elevation_m": 269.6694298932403, "end_elevation_m": 270.77526805778257, "min_gradient_pct": 3.7002665552500957 }, { "window_m": 10.0, "max_gradient_pct": 21.70945552793114, "diagnostic": false, "flags": [], "start_distance_m": 261.0, "end_distance_m": 271.0, "start_elevation_m": 268.60432250498945, "end_elevation_m": 270.77526805778257, "min_gradient_pct": 4.273640918240176 }, { "window_m": 20.0, "max_gradient_pct": 21.14600930579286, "diagnostic": false, "flags": [], "start_distance_m": 261.0, "end_distance_m": 281.0, "start_elevation_m": 268.60432250498945, "end_elevation_m": 272.833524366148, "min_gradient_pct": 5.779141130726373 }, { "window_m": 25.0, "max_gradient_pct": 20.864762341035203, "diagnostic": false, "flags": [], "start_distance_m": 257.0, "end_distance_m": 282.0, "start_elevation_m": 267.8177486475967, "end_elevation_m": 273.0339392328555, "min_gradient_pct": 6.465477432179455 }, { "window_m": 50.0, "max_gradient_pct": 19.69983607934205, "diagnostic": false, "flags": [], "start_distance_m": 237.0, "end_distance_m": 287.0, "start_elevation_m": 264.06181491785804, "end_elevation_m": 273.91173295752907, "min_gradient_pct": 8.552189486402995 }, { "window_m": 100.0, "max_gradient_pct": 16.634150851168954, "diagnostic": false, "flags": [ "canopy_or_structure" ], "start_distance_m": 206.0, "end_distance_m": 306.0, "start_elevation_m": 259.83999566436006, "end_elevation_m": 276.474146515529, "min_gradient_pct": 10.890100495079169 } ], "shape": { "ascent_concentration": 0.312, "concentration_window_frac": 0.25, "longest_pitch_10pct_m": 322.0, "shape_class": "sustained" }, "length_m": 352.80641123768845, "start_elevation_m": 233.6628307238732, "end_elevation_m": 282.5306429468261, "endpoint_gain_m": 48.86781222295289, "overall_gradient_pct": 13.851168988544899, "accumulated_ascent_m": 48.86781222295289, "window_maxima": { "max_5m": { "gradient_pct": 22.116763290845256, "start_distance_m": 266.0, "end_distance_m": 271.0, "midpoint_distance_m": 268.5, "start_elevation_m": 269.6694298932403, "end_elevation_m": 270.77526805778257, "start_xy": [ 398038.3671899116, 6238630.441717728 ], "end_xy": [ 398033.3820683516, 6238630.056278977 ] }, "max_10m": { "gradient_pct": 21.70945552793114, "start_distance_m": 261.0, "end_distance_m": 271.0, "midpoint_distance_m": 266.0, "start_elevation_m": 268.60432250498945, "end_elevation_m": 270.77526805778257, "start_xy": [ 398043.31456098513, 6238631.026411829 ], "end_xy": [ 398033.3820683516, 6238630.056278977 ] }, "max_20m": { "gradient_pct": 21.14600930579286, "start_distance_m": 261.0, "end_distance_m": 281.0, "midpoint_distance_m": 271.0, "start_elevation_m": 268.60432250498945, "end_elevation_m": 272.833524366148, "start_xy": [ 398043.31456098513, 6238631.026411829 ], "end_xy": [ 398023.4118252315, 6238629.285401472 ] }, "max_25m": { "gradient_pct": 20.864762341035203, "start_distance_m": 257.0, "end_distance_m": 282.0, "midpoint_distance_m": 269.5, "start_elevation_m": 267.8177486475967, "end_elevation_m": 273.0339392328555, "start_xy": [ 398047.1390694744, 6238632.198220181 ], "end_xy": [ 398022.41480091953, 6238629.208313721 ] }, "max_50m": { "gradient_pct": 19.69983607934205, "start_distance_m": 237.0, "end_distance_m": 287.0, "midpoint_distance_m": 262.0, "start_elevation_m": 264.06181491785804, "end_elevation_m": 273.91173295752907, "start_xy": [ 398066.2616119208, 6238638.057261945 ], "end_xy": [ 398017.4296793595, 6238628.822874969 ] }, "max_100m": { "gradient_pct": 16.634150851168954, "start_distance_m": 206.0, "end_distance_m": 306.0, "midpoint_distance_m": 256.0, "start_elevation_m": 259.83999566436006, "end_elevation_m": 276.474146515529, "start_xy": [ 398096.2621021887, 6238645.396521927 ], "end_xy": [ 397998.50310334045, 6238628.921254019 ] } }, "window_minima": { "min_5m": { "gradient_pct": 3.7002665552500957, "start_distance_m": 13.0, "end_distance_m": 18.0, "midpoint_distance_m": 15.5, "start_elevation_m": 234.6635257283342, "end_elevation_m": 234.8485390560967, "start_xy": [ 398230.8695729941, 6238576.6172369495 ], "end_xy": [ 398231.3062881518, 6238581.598128423 ] }, "min_10m": { "gradient_pct": 4.273640918240176, "start_distance_m": 11.0, "end_distance_m": 21.0, "midpoint_distance_m": 16.0, "start_elevation_m": 234.57210286876506, "end_elevation_m": 234.99946696058907, "start_xy": [ 398231.6440538894, 6238574.805502979 ], "end_xy": [ 398231.56831724645, 6238584.586663308 ] }, "min_20m": { "gradient_pct": 5.779141130726373, "start_distance_m": 7.0, "end_distance_m": 27.0, "midpoint_distance_m": 17.0, "start_elevation_m": 234.30880947107644, "end_elevation_m": 235.46463769722172, "start_xy": [ 398234.0126585351, 6238571.85250169 ], "end_xy": [ 398232.09237543575, 6238590.563733076 ] }, "min_25m": { "gradient_pct": 6.465477432179455, "start_distance_m": 7.0, "end_distance_m": 32.0, "midpoint_distance_m": 19.5, "start_elevation_m": 234.30880947107644, "end_elevation_m": 235.9251788291213, "start_xy": [ 398234.0126585351, 6238571.85250169 ], "end_xy": [ 398232.52909059345, 6238595.544624549 ] }, "min_50m": { "gradient_pct": 8.552189486402995, "start_distance_m": 0.0, "end_distance_m": 50.0, "midpoint_distance_m": 25.0, "start_elevation_m": 233.6628307238732, "end_elevation_m": 237.9389254670747, "start_xy": [ 398240.489, 6238569.196 ], "end_xy": [ 398233.4451877599, 6238613.499752241 ] }, "min_100m": { "gradient_pct": 10.890100495079169, "start_distance_m": 0.0, "end_distance_m": 100.0, "midpoint_distance_m": 50.0, "start_elevation_m": 233.6628307238732, "end_elevation_m": 244.55293121895238, "start_xy": [ 398240.489, 6238569.196 ], "end_xy": [ 398200.03197187284, 6238643.719854022 ] } }, "diagnostic_window_maxima": { "max_2m": { "gradient_pct": 22.453810561279397, "start_distance_m": 267.0, "end_distance_m": 269.0, "midpoint_distance_m": 268.0, "start_elevation_m": 269.8941109578483, "end_elevation_m": 270.3431871690739, "start_xy": [ 398037.3701655996, 6238630.364629978 ], "end_xy": [ 398035.3761169756, 6238630.210454477 ] }, "max_3m": { "gradient_pct": 22.458575861118863, "start_distance_m": 266.0, "end_distance_m": 269.0, "midpoint_distance_m": 267.5, "start_elevation_m": 269.6694298932403, "end_elevation_m": 270.3431871690739, "start_xy": [ 398038.3671899116, 6238630.441717728 ], "end_xy": [ 398035.3761169756, 6238630.210454477 ] } }, "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": 0.076, "obstruction_max_height_m": 18.84, "flagged_windows_m": [ 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_E397-N6238_0m5@21LHD1FQ-2025-09-15.tif", "data/cache/fr/ign-lidarhd_dtm_E398-N6238_0m5@21LHD1FQ-2025-09-15.tif" ], "calculated_at": "2026-09-20T06:01:57+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": [ "E397-N6238", "E398-N6238" ], "elevation_blocks": [ "21LHD1FQ@2025-09-15" ], "ign_dalles": [ "LHD_FXX_0397_6239_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0398_6239_MNT_O_0M50_LAMB93_IGN69" ], "ign_missions": [ "21LHD1FQ" ], "ign_editions": [ "2025-09-15" ], "ign_dsm_edition": { "LHD_FXX_0397_6239_MNT_O_0M50_LAMB93_IGN69": "2025-09-15", "LHD_FXX_0398_6239_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": 21, "stations_resolved": 21, "width_median_m": 5.25, "width_p10_m": 4.0, "width_min_m": 3.75, "width_max_m": 12.0, "bounded_share": 0.429, "unbounded_share": 0.571, "confidence_median": 0.0, "width_median_bounded_m": 5.25, "window_m": [ 257.0, 282.0 ], "width_at_max25_m": 5.25, "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": 21, "stations_resolved": 21, "width_median_m": 7.5, "width_p10_m": 4.75, "width_min_m": 0.5, "width_max_m": 12.0, "bounded_share": 0.762, "unbounded_share": 0.238, "confidence_median": 1.0, "width_median_bounded_m": 7.38, "window_m": [ 257.0, 282.0 ], "width_at_max25_m": 7.5, "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": "Esquiule", "county": "Pyr\u00e9n\u00e9es-Atlantiques", "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)" } }