{ "ocl_version": "0.1.0", "name": "Col du Tr\u00e9batut from Saint-Germain-du-Teil", "slug": "col-du-trebatut-from-saint-germain-du-teil", "confidence": "B", "reported_claims": [], "ladder": [ { "window_m": 2.0, "max_gradient_pct": 15.013270372605803, "diagnostic": true, "flags": [ "canopy_or_structure" ], "start_distance_m": 4878.0, "end_distance_m": 4880.0, "start_elevation_m": 1041.7973771396914, "end_elevation_m": 1042.0976425471436, "min_gradient_pct": -5.532728556329403 }, { "window_m": 3.0, "max_gradient_pct": 12.605386529442816, "diagnostic": true, "flags": [ "canopy_or_structure" ], "start_distance_m": 4878.0, "end_distance_m": 4881.0, "start_elevation_m": 1041.7973771396914, "end_elevation_m": 1042.1755387355747, "min_gradient_pct": -2.209781512086314 }, { "window_m": 5.0, "max_gradient_pct": 10.806104285193214, "diagnostic": false, "flags": [ "canopy_or_structure" ], "start_distance_m": 4878.0, "end_distance_m": 4883.0, "start_elevation_m": 1041.7973771396914, "end_elevation_m": 1042.337682353951, "min_gradient_pct": -1.924673780217745 }, { "window_m": 10.0, "max_gradient_pct": 8.801604460771841, "diagnostic": false, "flags": [], "start_distance_m": 2425.0, "end_distance_m": 2435.0, "start_elevation_m": 909.8390003405443, "end_elevation_m": 910.7191607866215, "min_gradient_pct": -1.719609813471834 }, { "window_m": 20.0, "max_gradient_pct": 8.484791958294409, "diagnostic": false, "flags": [], "start_distance_m": 2378.0, "end_distance_m": 2398.0, "start_elevation_m": 906.8022647707642, "end_elevation_m": 908.499223162423, "min_gradient_pct": -1.5130138782961922 }, { "window_m": 25.0, "max_gradient_pct": 8.382763761945625, "diagnostic": false, "flags": [], "start_distance_m": 2373.0, "end_distance_m": 2398.0, "start_elevation_m": 906.4035322219366, "end_elevation_m": 908.499223162423, "min_gradient_pct": -1.4263704735958527 }, { "window_m": 50.0, "max_gradient_pct": 7.589268382973842, "diagnostic": false, "flags": [], "start_distance_m": 1984.0, "end_distance_m": 2034.0, "start_elevation_m": 882.1219362948234, "end_elevation_m": 885.9165704863103, "min_gradient_pct": -1.2739720083018256 }, { "window_m": 100.0, "max_gradient_pct": 7.229297975214308, "diagnostic": false, "flags": [ "canopy_or_structure" ], "start_distance_m": 1981.0, "end_distance_m": 2081.0, "start_elevation_m": 881.880484765707, "end_elevation_m": 889.1097827409213, "min_gradient_pct": -1.069458289954241 } ], "shape": { "ascent_concentration": 0.322, "concentration_window_frac": 0.25, "longest_pitch_10pct_m": 0.0, "shape_class": "sustained" }, "length_m": 5617.714469742525, "start_elevation_m": 811.562951660155, "end_elevation_m": 1078.784029054683, "endpoint_gain_m": 267.22107739452804, "overall_gradient_pct": 4.756757909890275, "accumulated_ascent_m": 271.1919393921718, "window_maxima": { "max_5m": { "gradient_pct": 10.806104285193214, "start_distance_m": 4878.0, "end_distance_m": 4883.0, "midpoint_distance_m": 4880.5, "start_elevation_m": 1041.7973771396914, "end_elevation_m": 1042.337682353951, "start_xy": [ 713442.6677026661, 6380052.362057972 ], "end_xy": [ 713443.5675442048, 6380057.2804200165 ] }, "max_10m": { "gradient_pct": 8.801604460771841, "start_distance_m": 2425.0, "end_distance_m": 2435.0, "midpoint_distance_m": 2430.0, "start_elevation_m": 909.8390003405443, "end_elevation_m": 910.7191607866215, "start_xy": [ 713172.5616224753, 6377791.578417764 ], "end_xy": [ 713170.2186510823, 6377801.272375692 ] }, "max_20m": { "gradient_pct": 8.484791958294409, "start_distance_m": 2378.0, "end_distance_m": 2398.0, "midpoint_distance_m": 2388.0, "start_elevation_m": 906.8022647707642, "end_elevation_m": 908.499223162423, "start_xy": [ 713148.2730473581, 6377757.475727717 ], "end_xy": [ 713165.9001617812, 6377766.862373928 ] }, "max_25m": { "gradient_pct": 8.382763761945625, "start_distance_m": 2373.0, "end_distance_m": 2398.0, "midpoint_distance_m": 2385.5, "start_elevation_m": 906.4035322219366, "end_elevation_m": 908.499223162423, "start_xy": [ 713143.7039795298, 6377755.4450580785 ], "end_xy": [ 713165.9001617812, 6377766.862373928 ] }, "max_50m": { "gradient_pct": 7.589268382973842, "start_distance_m": 1984.0, "end_distance_m": 2034.0, "midpoint_distance_m": 2009.0, "start_elevation_m": 882.1219362948234, "end_elevation_m": 885.9165704863103, "start_xy": [ 713064.9609003537, 6377389.585894581 ], "end_xy": [ 713077.1897433677, 6377436.926355633 ] }, "max_100m": { "gradient_pct": 7.229297975214308, "start_distance_m": 1981.0, "end_distance_m": 2081.0, "midpoint_distance_m": 2031.0, "start_elevation_m": 881.880484765707, "end_elevation_m": 889.1097827409213, "start_xy": [ 713062.7903237953, 6377387.515001681 ], "end_xy": [ 713086.7880978102, 6377482.797238997 ] } }, "window_minima": { "min_5m": { "gradient_pct": -1.924673780217745, "start_distance_m": 602.0, "end_distance_m": 607.0, "midpoint_distance_m": 604.5, "start_elevation_m": 817.3248611290513, "end_elevation_m": 817.2286274400404, "start_xy": [ 713266.2419601901, 6376196.4779706625 ], "end_xy": [ 713264.8279832356, 6376201.273871952 ] }, "min_10m": { "gradient_pct": -1.719609813471834, "start_distance_m": 439.0, "end_distance_m": 449.0, "midpoint_distance_m": 444.0, "start_elevation_m": 818.8199064851169, "end_elevation_m": 818.6479455037697, "start_xy": [ 713229.8595608432, 6376039.157667378 ], "end_xy": [ 713233.3076744272, 6376048.544387396 ] }, "min_20m": { "gradient_pct": -1.5130138782961922, "start_distance_m": 549.0, "end_distance_m": 569.0, "midpoint_distance_m": 559.0, "start_elevation_m": 817.8684674423761, "end_elevation_m": 817.5658646667168, "start_xy": [ 713263.0282272483, 6376143.661732652 ], "end_xy": [ 713265.2704096904, 6376163.50830068 ] }, "min_25m": { "gradient_pct": -1.4263704735958527, "start_distance_m": 545.0, "end_distance_m": 570.0, "midpoint_distance_m": 557.5, "start_elevation_m": 817.9092744038587, "end_elevation_m": 817.5526817854598, "start_xy": [ 713262.3866732599, 6376139.713516792 ], "end_xy": [ 713265.3269286908, 6376164.506702203 ] }, "min_50m": { "gradient_pct": -1.2739720083018256, "start_distance_m": 519.0, "end_distance_m": 569.0, "midpoint_distance_m": 544.0, "start_elevation_m": 818.2028506708677, "end_elevation_m": 817.5658646667168, "start_xy": [ 713257.39893874, 6376114.234322822 ], "end_xy": [ 713265.2704096904, 6376163.50830068 ] }, "min_100m": { "gradient_pct": -1.069458289954241, "start_distance_m": 509.0, "end_distance_m": 609.0, "midpoint_distance_m": 559.0, "start_elevation_m": 818.2847834996612, "end_elevation_m": 817.215325209707, "start_xy": [ 713254.6151387144, 6376104.6296126535 ], "end_xy": [ 713264.2623924538, 6376203.192232467 ] } }, "diagnostic_window_maxima": { "max_2m": { "gradient_pct": 15.013270372605803, "start_distance_m": 4878.0, "end_distance_m": 4880.0, "midpoint_distance_m": 4879.0, "start_elevation_m": 1041.7973771396914, "end_elevation_m": 1042.0976425471436, "start_xy": [ 713442.6677026661, 6380052.362057972 ], "end_xy": [ 713443.0276392816, 6380054.3294027895 ] }, "max_3m": { "gradient_pct": 12.605386529442816, "start_distance_m": 4878.0, "end_distance_m": 4881.0, "midpoint_distance_m": 4879.5, "start_elevation_m": 1041.7973771396914, "end_elevation_m": 1042.1755387355747, "start_xy": [ 713442.6677026661, 6380052.362057972 ], "end_xy": [ 713443.2076075893, 6380055.313075199 ] } }, "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": 0.115, "obstruction_max_height_m": 20.12, "flagged_windows_m": [ 2, 3, 5, 100 ] }, "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-mc5", "road_pbf": "block-batch-fr-mc5.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_E712-N6376_0m5@21LHD4LO-2024-12-13.tif", "data/cache/fr/ign-lidarhd_dtm_E712-N6377_0m5@21LHD4LO-2024-12-13.tif", "data/cache/fr/ign-lidarhd_dtm_E712-N6378_0m5@21LHD4LO-2024-12-13.tif", "data/cache/fr/ign-lidarhd_dtm_E713-N6375_0m5@21LHD4LO-2024-12-13.tif", "data/cache/fr/ign-lidarhd_dtm_E713-N6376_0m5@21LHD4LO-2024-12-13.tif", "data/cache/fr/ign-lidarhd_dtm_E713-N6377_0m5@21LHD4LO-2024-12-13.tif", "data/cache/fr/ign-lidarhd_dtm_E713-N6378_0m5@21LHD4LO-2024-12-13.tif", "data/cache/fr/ign-lidarhd_dtm_E713-N6379_0m5@21LHD4LO-2024-12-13.tif", "data/cache/fr/ign-lidarhd_dtm_E713-N6380_0m5@21LHD4LO-2024-12-13.tif" ], "calculated_at": "2026-09-22T16:38:43+00:00", "road_source": "OpenStreetMap (local PBF extract)", "road_attribution": "\u00a9 OpenStreetMap contributors, ODbL", "osm_pbf_path": "data/cache/pbf/block-batch-fr-mc5.osm.pbf", "osm_snapshot": "", "run_id": "fr-mc5", "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": [ "E712-N6376", "E712-N6377", "E712-N6378", "E713-N6375", "E713-N6376", "E713-N6377", "E713-N6378", "E713-N6379", "E713-N6380" ], "elevation_blocks": [ "21LHD4LO@2024-12-13" ], "ign_dalles": [ "LHD_FXX_0712_6377_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0712_6378_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0712_6379_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0713_6376_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0713_6377_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0713_6378_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0713_6379_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0713_6380_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0713_6381_MNT_O_0M50_LAMB93_IGN69" ], "ign_missions": [ "21LHD4LO" ], "ign_editions": [ "2024-12-13" ], "ign_dsm_edition": { "LHD_FXX_0712_6377_MNT_O_0M50_LAMB93_IGN69": "2024-12-13", "LHD_FXX_0712_6378_MNT_O_0M50_LAMB93_IGN69": "2024-12-13", "LHD_FXX_0712_6379_MNT_O_0M50_LAMB93_IGN69": "2024-12-13", "LHD_FXX_0713_6376_MNT_O_0M50_LAMB93_IGN69": "2024-12-13", "LHD_FXX_0713_6377_MNT_O_0M50_LAMB93_IGN69": "2024-12-13", "LHD_FXX_0713_6378_MNT_O_0M50_LAMB93_IGN69": "2024-12-13", "LHD_FXX_0713_6379_MNT_O_0M50_LAMB93_IGN69": "2024-12-13", "LHD_FXX_0713_6380_MNT_O_0M50_LAMB93_IGN69": "2024-12-13", "LHD_FXX_0713_6381_MNT_O_0M50_LAMB93_IGN69": "2024-12-13" }, "climb_origin": "named-pass", "structure_own_ways": 3, "carriageway": { "stations": 231, "stations_resolved": 231, "width_median_m": 7.0, "width_p10_m": 5.25, "width_min_m": 1.25, "width_max_m": 11.5, "bounded_share": 0.351, "unbounded_share": 0.649, "confidence_median": 0.0, "width_median_bounded_m": 7.25, "window_m": [ 2373.0, 2398.0 ], "width_at_max25_m": 7.75, "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": 231, "stations_resolved": 231, "width_median_m": 7.25, "width_p10_m": 1.25, "width_min_m": 0.5, "width_max_m": 12.0, "bounded_share": 0.827, "unbounded_share": 0.173, "confidence_median": 1.0, "width_median_bounded_m": 6.75, "window_m": [ 2373.0, 2398.0 ], "width_at_max25_m": 7.25, "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": "Saint-Germain-du-Teil", "county": "Loz\u00e8re", "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)" } }