{ "ocl_version": "0.1.0", "name": "Chemin de Crampilh", "slug": "chemin-de-crampilh", "confidence": "B", "reported_claims": [], "ladder": [ { "window_m": 2.0, "max_gradient_pct": 23.819266559867458, "diagnostic": true, "flags": [ "canopy_or_structure" ], "start_distance_m": 761.0, "end_distance_m": 763.0, "start_elevation_m": 168.6302226553597, "end_elevation_m": 169.10660798655704, "min_gradient_pct": -6.1602722919758435 }, { "window_m": 3.0, "max_gradient_pct": 22.817305751493677, "diagnostic": true, "flags": [ "structure_excluded_min", "canopy_or_structure" ], "start_distance_m": 772.0, "end_distance_m": 775.0, "start_elevation_m": 171.03747006808467, "end_elevation_m": 171.72198924062948, "min_gradient_pct": -2.9596948626173494, "suppressed_min_gradient_pct": -4.51891521586371, "suppressed_min_location_m": [ 7.0, 10.0 ] }, { "window_m": 5.0, "max_gradient_pct": 22.381163463431903, "diagnostic": false, "flags": [ "structure_excluded_min", "canopy_or_structure" ], "start_distance_m": 761.0, "end_distance_m": 766.0, "start_elevation_m": 168.6302226553597, "end_elevation_m": 169.74928082853128, "min_gradient_pct": -1.8281916870915893, "suppressed_min_gradient_pct": -3.3546514692278606, "suppressed_min_location_m": [ 6.0, 11.0 ] }, { "window_m": 10.0, "max_gradient_pct": 21.881061372164652, "diagnostic": false, "flags": [ "structure_excluded_min", "canopy_or_structure" ], "start_distance_m": 760.0, "end_distance_m": 770.0, "start_elevation_m": 168.43379061207338, "end_elevation_m": 170.62189674928985, "min_gradient_pct": -1.7161396641810711, "suppressed_min_gradient_pct": -2.8575254592630017, "suppressed_min_location_m": [ 0.0, 10.0 ] }, { "window_m": 20.0, "max_gradient_pct": 21.46174228011688, "diagnostic": false, "flags": [ "structure_excluded_min", "canopy_or_structure" ], "start_distance_m": 759.0, "end_distance_m": 779.0, "start_elevation_m": 168.2576172835403, "end_elevation_m": 172.54996573956367, "min_gradient_pct": -1.3112417256243702, "suppressed_min_gradient_pct": -2.608129338218532, "suppressed_min_location_m": [ 1.0, 21.0 ] }, { "window_m": 25.0, "max_gradient_pct": 21.171809411713753, "diagnostic": false, "flags": [ "structure_excluded_min", "canopy_or_structure" ], "start_distance_m": 754.0, "end_distance_m": 779.0, "start_elevation_m": 167.25701338663524, "end_elevation_m": 172.54996573956367, "min_gradient_pct": -1.2235951960951752, "suppressed_min_gradient_pct": -2.4069906750852397, "suppressed_min_location_m": [ 1.0, 26.0 ] }, { "window_m": 50.0, "max_gradient_pct": 19.366619787762033, "diagnostic": false, "flags": [ "structure_excluded_min", "canopy_or_structure" ], "start_distance_m": 732.0, "end_distance_m": 782.0, "start_elevation_m": 163.34757076903867, "end_elevation_m": 173.03088066291969, "min_gradient_pct": -0.5150133854217529, "suppressed_min_gradient_pct": -1.751842111190399, "suppressed_min_location_m": [ 1.0, 51.0 ] }, { "window_m": 100.0, "max_gradient_pct": 15.0304241934937, "diagnostic": false, "flags": [ "structure_excluded_min", "canopy_or_structure" ], "start_distance_m": 710.0, "end_distance_m": 810.0, "start_elevation_m": 160.6363935770211, "end_elevation_m": 175.6668177705148, "min_gradient_pct": 0.31225448054104277, "suppressed_min_gradient_pct": -0.5452108285926158, "suppressed_min_location_m": [ 0.0, 100.0 ] } ], "shape": { "ascent_concentration": 0.542, "concentration_window_frac": 0.25, "longest_pitch_10pct_m": 151.0, "shape_class": "stepped" }, "length_m": 1179.9518639895991, "start_elevation_m": 139.1706120814852, "end_elevation_m": 210.92762767114348, "endpoint_gain_m": 71.7570155896583, "overall_gradient_pct": 6.0813510940214766, "accumulated_ascent_m": 73.2920461980953, "window_maxima": { "max_5m": { "gradient_pct": 22.381163463431903, "start_distance_m": 761.0, "end_distance_m": 766.0, "midpoint_distance_m": 763.5, "start_elevation_m": 168.6302226553597, "end_elevation_m": 169.74928082853128, "start_xy": [ 446517.74506282725, 6276759.8256963985 ], "end_xy": [ 446517.8238853803, 6276754.841851108 ] }, "max_10m": { "gradient_pct": 21.881061372164652, "start_distance_m": 760.0, "end_distance_m": 770.0, "midpoint_distance_m": 765.0, "start_elevation_m": 168.43379061207338, "end_elevation_m": 170.62189674928985, "start_xy": [ 446517.9879091085, 6276760.795761182 ], "end_xy": [ 446517.98187345074, 6276750.844972354 ] }, "max_20m": { "gradient_pct": 21.46174228011688, "start_distance_m": 759.0, "end_distance_m": 779.0, "midpoint_distance_m": 769.0, "start_elevation_m": 168.2576172835403, "end_elevation_m": 172.54996573956367, "start_xy": [ 446518.2307553897, 6276761.765825965 ], "end_xy": [ 446520.48982293776, 6276742.301327644 ] }, "max_25m": { "gradient_pct": 21.171809411713753, "start_distance_m": 754.0, "end_distance_m": 779.0, "midpoint_distance_m": 766.5, "start_elevation_m": 167.25701338663524, "end_elevation_m": 172.54996573956367, "start_xy": [ 446519.444986796, 6276766.616149881 ], "end_xy": [ 446520.48982293776, 6276742.301327644 ] }, "max_50m": { "gradient_pct": 19.366619787762033, "start_distance_m": 732.0, "end_distance_m": 782.0, "midpoint_distance_m": 757.0, "start_elevation_m": 163.34757076903867, "end_elevation_m": 173.03088066291969, "start_xy": [ 446524.78760498366, 6276787.957575113 ], "end_xy": [ 446521.58049803035, 6276739.506613376 ] }, "max_100m": { "gradient_pct": 15.0304241934937, "start_distance_m": 710.0, "end_distance_m": 810.0, "midpoint_distance_m": 760.0, "start_elevation_m": 160.6363935770211, "end_elevation_m": 175.6668177705148, "start_xy": [ 446523.0433775751, 6276809.462563328 ], "end_xy": [ 446503.98923083337, 6276722.543057352 ] } }, "window_minima": { "min_5m": { "gradient_pct": -1.8281916870915893, "start_distance_m": 22.0, "end_distance_m": 27.0, "midpoint_distance_m": 24.5, "start_elevation_m": 138.628990375103, "end_elevation_m": 138.53758079074842, "start_xy": [ 447042.8264558399, 6277078.4745396655 ], "end_xy": [ 447038.2766491276, 6277076.401074237 ] }, "min_10m": { "gradient_pct": -1.7161396641810711, "start_distance_m": 22.0, "end_distance_m": 32.0, "midpoint_distance_m": 27.0, "start_elevation_m": 138.628990375103, "end_elevation_m": 138.4573764086849, "start_xy": [ 447042.8264558399, 6277078.4745396655 ], "end_xy": [ 447033.7268424152, 6277074.32760881 ] }, "min_20m": { "gradient_pct": -1.3112417256243702, "start_distance_m": 23.0, "end_distance_m": 43.0, "midpoint_distance_m": 33.0, "start_elevation_m": 138.61626296174703, "end_elevation_m": 138.35401461662215, "start_xy": [ 447041.91649449745, 6277078.059846579 ], "end_xy": [ 447023.71726764814, 6277069.765984868 ] }, "min_25m": { "gradient_pct": -1.2235951960951752, "start_distance_m": 21.0, "end_distance_m": 46.0, "midpoint_distance_m": 33.5, "start_elevation_m": 138.63333908392445, "end_elevation_m": 138.32744028490066, "start_xy": [ 447043.7364171824, 6277078.889232751 ], "end_xy": [ 447020.9873836207, 6277068.521905611 ] }, "min_50m": { "gradient_pct": -0.5150133854217529, "start_distance_m": 21.0, "end_distance_m": 71.0, "midpoint_distance_m": 46.0, "start_elevation_m": 138.63333908392445, "end_elevation_m": 138.37583239121358, "start_xy": [ 447043.7364171824, 6277078.889232751 ], "end_xy": [ 446998.2383500591, 6277058.1545784725 ] }, "min_100m": { "gradient_pct": 0.31225448054104277, "start_distance_m": 21.0, "end_distance_m": 121.0, "midpoint_distance_m": 71.0, "start_elevation_m": 138.63333908392445, "end_elevation_m": 138.9455935644655, "start_xy": [ 447043.7364171824, 6277078.889232751 ], "end_xy": [ 446952.7402829358, 6277037.419924194 ] } }, "diagnostic_window_maxima": { "max_2m": { "gradient_pct": 23.819266559867458, "start_distance_m": 761.0, "end_distance_m": 763.0, "midpoint_distance_m": 762.0, "start_elevation_m": 168.6302226553597, "end_elevation_m": 169.10660798655704, "start_xy": [ 446517.74506282725, 6276759.8256963985 ], "end_xy": [ 446517.70539432747, 6276757.839510173 ] }, "max_3m": { "gradient_pct": 22.817305751493677, "start_distance_m": 772.0, "end_distance_m": 775.0, "midpoint_distance_m": 773.5, "start_elevation_m": 171.03747006808467, "end_elevation_m": 171.72198924062948, "start_xy": [ 446518.06086748594, 6276748.846532977 ], "end_xy": [ 446519.03558948095, 6276746.027613335 ] } }, "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": 0.018, "windows_resited": [], "windows_unresolved": [], "minima_resited": [ 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": 0.137, "obstruction_max_height_m": 19.2, "flagged_windows_m": [ 2, 3, 5, 10, 20, 25, 50, 100 ] }, "excluded_ranges_m": [ [ 0.0, 20.0 ] ], "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-pyr2", "road_pbf": "block-batch-fr-pyr2.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_E446-N6276_0m5@21LHD1GQ-2025-04-11.tif", "data/cache/fr/ign-lidarhd_dtm_E446-N6277_0m5@21LHD1GQ-2026-03-20.tif", "data/cache/fr/ign-lidarhd_dtm_E447-N6276_0m5@21LHD1GQ-2026-03-20.tif", "data/cache/fr/ign-lidarhd_dtm_E447-N6277_0m5@21LHD1GQ-2025-04-11.tif" ], "calculated_at": "2026-09-20T07:03:58+00:00", "road_source": "OpenStreetMap (local PBF extract)", "road_attribution": "\u00a9 OpenStreetMap contributors, ODbL", "osm_pbf_path": "data/cache/pbf/block-batch-fr-pyr2.osm.pbf", "osm_snapshot": "", "run_id": "fr-pyr2", "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": [ "E446-N6276", "E446-N6277", "E447-N6276", "E447-N6277" ], "elevation_blocks": [ "21LHD1GQ@2025-04-11", "21LHD1GQ@2026-03-20" ], "ign_dalles": [ "LHD_FXX_0446_6277_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0446_6278_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0447_6277_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0447_6278_MNT_O_0M50_LAMB93_IGN69" ], "ign_missions": [ "21LHD1GQ" ], "ign_editions": [ "2025-04-11", "2026-03-20" ], "ign_dsm_edition": { "LHD_FXX_0446_6277_MNT_O_0M50_LAMB93_IGN69": "2025-04-11", "LHD_FXX_0446_6278_MNT_O_0M50_LAMB93_IGN69": "2026-03-20", "LHD_FXX_0447_6277_MNT_O_0M50_LAMB93_IGN69": "2026-03-20", "LHD_FXX_0447_6278_MNT_O_0M50_LAMB93_IGN69": "2025-04-11" }, "climb_origin": "discovered", "structure_own_ways": 5, "structure_mask_ranges_m": [ [ 0.0, 15.0 ] ], "carriageway": { "stations": 54, "stations_resolved": 54, "width_median_m": 5.5, "width_p10_m": 4.08, "width_min_m": 1.0, "width_max_m": 12.0, "bounded_share": 0.333, "unbounded_share": 0.667, "confidence_median": 0.0, "width_median_bounded_m": 5.25, "window_m": [ 754.0, 779.0 ], "width_at_max25_m": 5.75, "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": 54, "stations_resolved": 54, "width_median_m": 6.62, "width_p10_m": 1.0, "width_min_m": 0.5, "width_max_m": 12.0, "bounded_share": 0.611, "unbounded_share": 0.389, "confidence_median": 1.0, "width_median_bounded_m": 4.0, "window_m": [ 754.0, 779.0 ], "width_at_max25_m": 1.25, "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": "Aurions-Idernes", "county": "Pyr\u00e9n\u00e9es-Atlantiques", "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)" } }