{ "ocl_version": "0.1.0", "name": "Chemin d'Iribarneborda", "slug": "chemin-d-iribarneborda", "confidence": "B", "reported_claims": [], "ladder": [ { "window_m": 2.0, "max_gradient_pct": 34.026497099468145, "diagnostic": true, "flags": [ "canopy_or_structure" ], "start_distance_m": 889.0, "end_distance_m": 891.0, "start_elevation_m": 245.6809342384364, "end_elevation_m": 246.36146418042577, "min_gradient_pct": -18.944916933553202 }, { "window_m": 3.0, "max_gradient_pct": 32.46963365181443, "diagnostic": true, "flags": [ "canopy_or_structure" ], "start_distance_m": 889.0, "end_distance_m": 892.0, "start_elevation_m": 245.6809342384364, "end_elevation_m": 246.65502324799084, "min_gradient_pct": -15.213131085816181 }, { "window_m": 5.0, "max_gradient_pct": 27.788932540616997, "diagnostic": false, "flags": [ "canopy_or_structure" ], "start_distance_m": 889.0, "end_distance_m": 894.0, "start_elevation_m": 245.6809342384364, "end_elevation_m": 247.07038086546726, "min_gradient_pct": -11.237075821417761 }, { "window_m": 10.0, "max_gradient_pct": 23.674190608207084, "diagnostic": false, "flags": [], "start_distance_m": 852.0, "end_distance_m": 862.0, "start_elevation_m": 238.64923286706892, "end_elevation_m": 241.01665192788963, "min_gradient_pct": -8.589516324888962 }, { "window_m": 20.0, "max_gradient_pct": 21.292404791145003, "diagnostic": false, "flags": [], "start_distance_m": 850.0, "end_distance_m": 870.0, "start_elevation_m": 238.18793419356317, "end_elevation_m": 242.44641515179217, "min_gradient_pct": -7.879794456235345 }, { "window_m": 25.0, "max_gradient_pct": 20.652404211448925, "diagnostic": false, "flags": [], "start_distance_m": 850.0, "end_distance_m": 875.0, "start_elevation_m": 238.18793419356317, "end_elevation_m": 243.3510352464254, "min_gradient_pct": -7.681708350745453 }, { "window_m": 50.0, "max_gradient_pct": 19.781744671712204, "diagnostic": false, "flags": [ "canopy_or_structure" ], "start_distance_m": 843.0, "end_distance_m": 893.0, "start_elevation_m": 237.01511244765857, "end_elevation_m": 246.90598478351467, "min_gradient_pct": -6.270258719533274 }, { "window_m": 100.0, "max_gradient_pct": 17.44542432280346, "diagnostic": false, "flags": [ "canopy_or_structure" ], "start_distance_m": 762.0, "end_distance_m": 862.0, "start_elevation_m": 223.57122760508616, "end_elevation_m": 241.01665192788963, "min_gradient_pct": -5.288817418211778 } ], "shape": { "ascent_concentration": 0.514, "concentration_window_frac": 0.25, "longest_pitch_10pct_m": 169.0, "shape_class": "stepped" }, "length_m": 1097.0513087789318, "start_elevation_m": 199.9355435771598, "end_elevation_m": 263.4756530151368, "endpoint_gain_m": 63.54010943797701, "overall_gradient_pct": 5.7918995155021555, "accumulated_ascent_m": 73.85987650060594, "window_maxima": { "max_5m": { "gradient_pct": 27.788932540616997, "start_distance_m": 889.0, "end_distance_m": 894.0, "midpoint_distance_m": 891.5, "start_elevation_m": 245.6809342384364, "end_elevation_m": 247.07038086546726, "start_xy": [ 359067.55663551396, 6244960.354271941 ], "end_xy": [ 359062.9452345394, 6244958.421662034 ] }, "max_10m": { "gradient_pct": 23.674190608207084, "start_distance_m": 852.0, "end_distance_m": 862.0, "midpoint_distance_m": 857.0, "start_elevation_m": 238.64923286706892, "end_elevation_m": 241.01665192788963, "start_xy": [ 359101.68100272573, 6244974.655585251 ], "end_xy": [ 359092.4582007766, 6244970.790365437 ] }, "max_20m": { "gradient_pct": 21.292404791145003, "start_distance_m": 850.0, "end_distance_m": 870.0, "midpoint_distance_m": 860.0, "start_elevation_m": 238.18793419356317, "end_elevation_m": 242.44641515179217, "start_xy": [ 359103.4434020436, 6244975.562353476 ], "end_xy": [ 359085.0799592173, 6244967.698189586 ] }, "max_25m": { "gradient_pct": 20.652404211448925, "start_distance_m": 850.0, "end_distance_m": 875.0, "midpoint_distance_m": 862.5, "start_elevation_m": 238.18793419356317, "end_elevation_m": 243.3510352464254, "start_xy": [ 359103.4434020436, 6244975.562353476 ], "end_xy": [ 359080.4685582427, 6244965.765579679 ] }, "max_50m": { "gradient_pct": 19.781744671712204, "start_distance_m": 843.0, "end_distance_m": 893.0, "midpoint_distance_m": 868.0, "start_elevation_m": 237.01511244765857, "end_elevation_m": 246.90598478351467, "start_xy": [ 359108.77453262993, 6244980.098766891 ], "end_xy": [ 359063.8675147343, 6244958.808184015 ] }, "max_100m": { "gradient_pct": 17.44542432280346, "start_distance_m": 762.0, "end_distance_m": 862.0, "midpoint_distance_m": 812.0, "start_elevation_m": 223.57122760508616, "end_elevation_m": 241.01665192788963, "start_xy": [ 359082.6927422542, 6245047.447501429 ], "end_xy": [ 359092.4582007766, 6244970.790365437 ] } }, "window_minima": { "min_5m": { "gradient_pct": -11.237075821417761, "start_distance_m": 356.0, "end_distance_m": 361.0, "midpoint_distance_m": 358.5, "start_elevation_m": 205.38292557325602, "end_elevation_m": 204.82107178218513, "start_xy": [ 358762.25023431284, 6245270.196066416 ], "end_xy": [ 358765.46878850466, 6245266.36972235 ] }, "min_10m": { "gradient_pct": -8.589516324888962, "start_distance_m": 127.0, "end_distance_m": 137.0, "midpoint_distance_m": 132.0, "start_elevation_m": 206.77708690489646, "end_elevation_m": 205.91813527240757, "start_xy": [ 358672.0018692965, 6245470.010146068 ], "end_xy": [ 358678.00092785695, 6245462.009440075 ] }, "min_20m": { "gradient_pct": -7.879794456235345, "start_distance_m": 121.0, "end_distance_m": 141.0, "midpoint_distance_m": 131.0, "start_elevation_m": 207.2196651997404, "end_elevation_m": 205.64370630849334, "start_xy": [ 358668.8071048908, 6245475.078577801 ], "end_xy": [ 358680.4005512812, 6245458.809157678 ] }, "min_25m": { "gradient_pct": -7.681708350745453, "start_distance_m": 119.0, "end_distance_m": 144.0, "midpoint_distance_m": 131.5, "start_elevation_m": 207.35748527254782, "end_elevation_m": 205.43705818486146, "start_xy": [ 358667.80200577644, 6245476.807674608 ], "end_xy": [ 358682.2002688493, 6245456.40894588 ] }, "min_50m": { "gradient_pct": -6.270258719533274, "start_distance_m": 117.0, "end_distance_m": 167.0, "midpoint_distance_m": 142.0, "start_elevation_m": 207.47420111827734, "end_elevation_m": 204.3390717585107, "start_xy": [ 358666.796906662, 6245478.536771416 ], "end_xy": [ 358696.9385307057, 6245438.768417331 ] }, "min_100m": { "gradient_pct": -5.288817418211778, "start_distance_m": 114.0, "end_distance_m": 214.0, "midpoint_distance_m": 164.0, "start_elevation_m": 207.55597864004784, "end_elevation_m": 202.26716122183606, "start_xy": [ 358665.2892579904, 6245481.130416628 ], "end_xy": [ 358713.12005197327, 6245396.135367949 ] } }, "diagnostic_window_maxima": { "max_2m": { "gradient_pct": 34.026497099468145, "start_distance_m": 889.0, "end_distance_m": 891.0, "midpoint_distance_m": 890.0, "start_elevation_m": 245.6809342384364, "end_elevation_m": 246.36146418042577, "start_xy": [ 359067.55663551396, 6244960.354271941 ], "end_xy": [ 359065.7120751241, 6244959.581227978 ] }, "max_3m": { "gradient_pct": 32.46963365181443, "start_distance_m": 889.0, "end_distance_m": 892.0, "midpoint_distance_m": 890.5, "start_elevation_m": 245.6809342384364, "end_elevation_m": 246.65502324799084, "start_xy": [ 359067.55663551396, 6244960.354271941 ], "end_xy": [ 359064.7897949292, 6244959.194705997 ] } }, "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": { "no_bench_suppression": { "masked_fraction": 0.028, "windows_resited": [], "windows_unresolved": [], "minima_resited": [], "minima_unresolved": [] }, "overhead_obstruction": { "obstruction_threshold_m": 2.0, "obstructed_fraction": 0.287, "obstruction_max_height_m": 21.84, "flagged_windows_m": [ 2, 3, 5, 50, 100 ] }, "excluded_ranges_m": [ [ 1050.0, 1080.0 ] ], "review": [], "extent": [ "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_E358-N6244_0m5@21LHD1EQ-2025-09-26.tif", "data/cache/fr/ign-lidarhd_dtm_E358-N6245_0m5@21LHD1EQ-2025-09-26.tif", "data/cache/fr/ign-lidarhd_dtm_E359-N6244_0m5@21LHD1EQ-2025-09-26.tif", "data/cache/fr/ign-lidarhd_dtm_E359-N6245_0m5@21LHD1EQ-2025-09-26.tif" ], "calculated_at": "2026-09-20T06:17:43+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": [ "E358-N6244", "E358-N6245", "E359-N6244", "E359-N6245" ], "elevation_blocks": [ "21LHD1EQ@2025-09-26" ], "ign_dalles": [ "LHD_FXX_0358_6245_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0358_6246_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0359_6245_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0359_6246_MNT_O_0M50_LAMB93_IGN69" ], "ign_missions": [ "21LHD1EQ" ], "ign_editions": [ "2025-09-26" ], "ign_dsm_edition": { "LHD_FXX_0358_6245_MNT_O_0M50_LAMB93_IGN69": "2025-09-26", "LHD_FXX_0358_6246_MNT_O_0M50_LAMB93_IGN69": "2025-09-26", "LHD_FXX_0359_6245_MNT_O_0M50_LAMB93_IGN69": "2025-09-26", "LHD_FXX_0359_6246_MNT_O_0M50_LAMB93_IGN69": "2025-09-26" }, "climb_origin": "discovered", "structure_own_ways": "none \u2014 the route carried no way list; own decks unmasked", "carriageway": { "stations": 48, "stations_resolved": 48, "width_median_m": 3.62, "width_p10_m": 1.43, "width_min_m": 1.0, "width_max_m": 9.5, "bounded_share": 0.479, "unbounded_share": 0.521, "confidence_median": 0.0, "width_median_bounded_m": 3.25, "window_m": [ 850.0, 875.0 ], "width_at_max25_m": 1.62, "window_stations": 6, "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": 48, "stations_resolved": 48, "width_median_m": 4.62, "width_p10_m": 2.42, "width_min_m": 1.0, "width_max_m": 12.0, "bounded_share": 0.75, "unbounded_share": 0.25, "confidence_median": 1.0, "width_median_bounded_m": 4.12, "window_m": [ 850.0, 875.0 ], "width_at_max25_m": 4.38, "window_stations": 6, "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": "Suhescun", "county": "Pyr\u00e9n\u00e9es-Atlantiques", "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)" } }