{ "ocl_version": "0.1.0", "name": "Chemin de Parb\u00e8s", "slug": "chemin-de-parbes", "confidence": "B", "reported_claims": [], "ladder": [ { "window_m": 2.0, "max_gradient_pct": 34.8679039825754, "diagnostic": true, "flags": [ "canopy_or_structure" ], "start_distance_m": 698.0, "end_distance_m": 700.0, "start_elevation_m": 176.04540109728995, "end_elevation_m": 176.74275917694146, "min_gradient_pct": -14.984720666778628 }, { "window_m": 3.0, "max_gradient_pct": 30.21322788562581, "diagnostic": true, "flags": [ "canopy_or_structure" ], "start_distance_m": 73.0, "end_distance_m": 76.0, "start_elevation_m": 108.0229631671434, "end_elevation_m": 108.92936000371218, "min_gradient_pct": -8.846216228593562 }, { "window_m": 5.0, "max_gradient_pct": 28.789585981608923, "diagnostic": false, "flags": [ "canopy_or_structure" ], "start_distance_m": 72.0, "end_distance_m": 77.0, "start_elevation_m": 107.75848713354861, "end_elevation_m": 109.19796643262906, "min_gradient_pct": -7.928844704254061 }, { "window_m": 10.0, "max_gradient_pct": 25.488923081557715, "diagnostic": false, "flags": [ "canopy_or_structure" ], "start_distance_m": 69.0, "end_distance_m": 79.0, "start_elevation_m": 107.11913263544494, "end_elevation_m": 109.66802494360071, "min_gradient_pct": -6.520000100491075 }, { "window_m": 20.0, "max_gradient_pct": 23.03125638346863, "diagnostic": false, "flags": [ "canopy_or_structure" ], "start_distance_m": 69.0, "end_distance_m": 89.0, "start_elevation_m": 107.11913263544494, "end_elevation_m": 111.72538391213867, "min_gradient_pct": -5.782685112342847 }, { "window_m": 25.0, "max_gradient_pct": 22.288586297930237, "diagnostic": false, "flags": [ "canopy_or_structure" ], "start_distance_m": 63.0, "end_distance_m": 88.0, "start_elevation_m": 105.95569691778164, "end_elevation_m": 111.5278434922642, "min_gradient_pct": -5.389491681914706 }, { "window_m": 50.0, "max_gradient_pct": 20.304855637808913, "diagnostic": false, "flags": [ "canopy_or_structure" ], "start_distance_m": 57.0, "end_distance_m": 107.0, "start_elevation_m": 104.82524550717041, "end_elevation_m": 114.97767332607486, "min_gradient_pct": -4.705556680518043 }, { "window_m": 100.0, "max_gradient_pct": 18.011912821204547, "diagnostic": false, "flags": [ "canopy_or_structure" ], "start_distance_m": 43.0, "end_distance_m": 143.0, "start_elevation_m": 102.57943516607747, "end_elevation_m": 120.59134798728202, "min_gradient_pct": -3.452548273417733 } ], "shape": { "ascent_concentration": 0.429, "concentration_window_frac": 0.25, "longest_pitch_10pct_m": 213.0, "shape_class": "sustained" }, "length_m": 1014.4285834890169, "start_elevation_m": 100.84724486578625, "end_elevation_m": 182.46920799902162, "endpoint_gain_m": 81.62196313323537, "overall_gradient_pct": 8.046102452328926, "accumulated_ascent_m": 86.33238544573584, "window_maxima": { "max_5m": { "gradient_pct": 28.789585981608923, "start_distance_m": 72.0, "end_distance_m": 77.0, "midpoint_distance_m": 74.5, "start_elevation_m": 107.75848713354861, "end_elevation_m": 109.19796643262906, "start_xy": [ 550355.3256933503, 6339453.287412329 ], "end_xy": [ 550350.3340592419, 6339452.998294831 ] }, "max_10m": { "gradient_pct": 25.488923081557715, "start_distance_m": 69.0, "end_distance_m": 79.0, "midpoint_distance_m": 74.0, "start_elevation_m": 107.11913263544494, "end_elevation_m": 109.66802494360071, "start_xy": [ 550358.3206738153, 6339453.460882828 ], "end_xy": [ 550348.3374055985, 6339452.882647832 ] }, "max_20m": { "gradient_pct": 23.03125638346863, "start_distance_m": 69.0, "end_distance_m": 89.0, "midpoint_distance_m": 79.0, "start_elevation_m": 107.11913263544494, "end_elevation_m": 111.72538391213867, "start_xy": [ 550358.3206738153, 6339453.460882828 ], "end_xy": [ 550338.4010983222, 6339453.144947273 ] }, "max_25m": { "gradient_pct": 22.288586297930237, "start_distance_m": 63.0, "end_distance_m": 88.0, "midpoint_distance_m": 75.5, "start_elevation_m": 105.95569691778164, "end_elevation_m": 111.5278434922642, "start_xy": [ 550364.3106347455, 6339453.807823826 ], "end_xy": [ 550339.3867708646, 6339452.976277064 ] }, "max_50m": { "gradient_pct": 20.304855637808913, "start_distance_m": 57.0, "end_distance_m": 107.0, "midpoint_distance_m": 82.0, "start_elevation_m": 104.82524550717041, "end_elevation_m": 114.97767332607486, "start_xy": [ 550370.3005956756, 6339454.154764823 ], "end_xy": [ 550323.2539860983, 6339462.5397092495 ] }, "max_100m": { "gradient_pct": 18.011912821204547, "start_distance_m": 43.0, "end_distance_m": 143.0, "midpoint_distance_m": 93.0, "start_elevation_m": 102.57943516607747, "end_elevation_m": 120.59134798728202, "start_xy": [ 550384.2824952283, 6339454.806685893 ], "end_xy": [ 550291.9094352532, 6339478.95743252 ] } }, "window_minima": { "min_5m": { "gradient_pct": -7.928844704254061, "start_distance_m": 958.0, "end_distance_m": 963.0, "midpoint_distance_m": 960.5, "start_elevation_m": 181.02095743564107, "end_elevation_m": 180.62451520042836, "start_xy": [ 549786.9200639166, 6340065.015046915 ], "end_xy": [ 549783.0799511963, 6340068.21716095 ] }, "min_10m": { "gradient_pct": -6.520000100491075, "start_distance_m": 954.0, "end_distance_m": 964.0, "midpoint_distance_m": 959.0, "start_elevation_m": 181.2166493952272, "end_elevation_m": 180.5646493851781, "start_xy": [ 549789.9921540928, 6340062.453355687 ], "end_xy": [ 549782.3119286522, 6340068.8575837575 ] }, "min_20m": { "gradient_pct": -5.782685112342847, "start_distance_m": 944.0, "end_distance_m": 964.0, "midpoint_distance_m": 954.0, "start_elevation_m": 181.72118640764666, "end_elevation_m": 180.5646493851781, "start_xy": [ 549797.6723795333, 6340056.049127616 ], "end_xy": [ 549782.3119286522, 6340068.8575837575 ] }, "min_25m": { "gradient_pct": -5.389491681914706, "start_distance_m": 939.0, "end_distance_m": 964.0, "midpoint_distance_m": 951.5, "start_elevation_m": 181.91202230565676, "end_elevation_m": 180.5646493851781, "start_xy": [ 549801.5124922536, 6340052.847013581 ], "end_xy": [ 549782.3119286522, 6340068.8575837575 ] }, "min_50m": { "gradient_pct": -4.705556680518043, "start_distance_m": 914.0, "end_distance_m": 964.0, "midpoint_distance_m": 939.0, "start_elevation_m": 182.9174277254371, "end_elevation_m": 180.5646493851781, "start_xy": [ 549820.7130558548, 6340036.836443404 ], "end_xy": [ 549782.3119286522, 6340068.8575837575 ] }, "min_100m": { "gradient_pct": -3.452548273417733, "start_distance_m": 864.0, "end_distance_m": 964.0, "midpoint_distance_m": 914.0, "start_elevation_m": 184.01719765859582, "end_elevation_m": 180.5646493851781, "start_xy": [ 549848.9721581253, 6339998.373163991 ], "end_xy": [ 549782.3119286522, 6340068.8575837575 ] } }, "diagnostic_window_maxima": { "max_2m": { "gradient_pct": 34.8679039825754, "start_distance_m": 698.0, "end_distance_m": 700.0, "midpoint_distance_m": 699.0, "start_elevation_m": 176.04540109728995, "end_elevation_m": 176.74275917694146, "start_xy": [ 549933.0570063458, 6339866.309597813 ], "end_xy": [ 549931.4495178374, 6339867.499547684 ] }, "max_3m": { "gradient_pct": 30.21322788562581, "start_distance_m": 73.0, "end_distance_m": 76.0, "midpoint_distance_m": 74.5, "start_elevation_m": 108.0229631671434, "end_elevation_m": 108.92936000371218, "start_xy": [ 550354.3273665287, 6339453.229588829 ], "end_xy": [ 550351.3323860635, 6339453.056118331 ] } }, "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": 0.313, "obstruction_max_height_m": 16.74, "flagged_windows_m": [ 2, 3, 5, 10, 20, 25, 50, 100 ] }, "review": [], "extent": [] }, "provenance": { "analysis_version": "0.1.0", "run_manifest": { "manifest_version": "1", "code_git_sha": "16bcc1553fe58b280e0c4a66a3ab0980530490a6", "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-so7", "road_pbf": "block-batch-fr-so7.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": "sha256:18f786cf9fa98070" }, "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_E549-N6339_0m5@21LHD2IO-2025-04-02.tif", "data/cache/fr/ign-lidarhd_dtm_E549-N6340_0m5@21LHD2IO-2025-04-02.tif", "data/cache/fr/ign-lidarhd_dtm_E550-N6339_0m5@21LHD2IO-2025-04-02.tif", "data/cache/fr/ign-lidarhd_dtm_E550-N6340_0m5@21LHD2IO-2025-04-02.tif" ], "calculated_at": "2026-09-27T03:48:59+00:00", "road_source": "OpenStreetMap (local PBF extract)", "road_attribution": "\u00a9 OpenStreetMap contributors, ODbL", "osm_pbf_path": "data/cache/pbf/block-batch-fr-so7.osm.pbf", "osm_snapshot": "", "run_id": "fr-so7", "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": [ "E549-N6339", "E549-N6340", "E550-N6339", "E550-N6340" ], "elevation_blocks": [ "21LHD2IO@2025-04-02" ], "ign_dalles": [ "LHD_FXX_0549_6340_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0549_6341_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0550_6340_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0550_6341_MNT_O_0M50_LAMB93_IGN69" ], "ign_missions": [ "21LHD2IO" ], "ign_editions": [ "2025-04-02" ], "ign_dsm_edition": { "LHD_FXX_0549_6340_MNT_O_0M50_LAMB93_IGN69": "2025-04-02", "LHD_FXX_0549_6341_MNT_O_0M50_LAMB93_IGN69": "2025-04-02", "LHD_FXX_0550_6340_MNT_O_0M50_LAMB93_IGN69": "2025-04-02", "LHD_FXX_0550_6341_MNT_O_0M50_LAMB93_IGN69": "2025-04-02" }, "climb_origin": "discovered", "seam_filled_samples": { "count": 0, "distances_m": [] }, "seam_filled_in_maximum": false, "structure_own_ways": "none \u2014 the route carried no way list and no mapped way runs along it; own decks unmasked", "carriageway": { "stations": 47, "stations_resolved": 47, "width_median_m": 5.5, "width_p10_m": 3.2, "width_min_m": 1.5, "width_max_m": 12.0, "bounded_share": 0.213, "unbounded_share": 0.787, "confidence_median": 0.0, "width_median_bounded_m": 4.25, "window_m": [ 63.0, 88.0 ], "width_at_max25_m": 5.5, "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": 47, "stations_resolved": 47, "width_median_m": 5.25, "width_p10_m": 1.0, "width_min_m": 0.5, "width_max_m": 12.0, "bounded_share": 0.681, "unbounded_share": 0.319, "confidence_median": 1.0, "width_median_bounded_m": 2.12, "window_m": [ 63.0, 88.0 ], "width_at_max25_m": 1.75, "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": "Moissac", "county": "Tarn-et-Garonne", "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)" } }