{ "ocl_version": "0.1.0", "name": "Avenue des Ardoisi\u00e8res", "slug": "avenue-des-ardoisieres", "confidence": "B", "reported_claims": [], "ladder": [ { "window_m": 2.0, "max_gradient_pct": 24.789527128515942, "diagnostic": true, "flags": [ "structure_excluded", "structure_excluded_min" ], "start_distance_m": 1451.0, "end_distance_m": 1453.0, "start_elevation_m": 258.05011891193163, "end_elevation_m": 258.54590945450195, "min_gradient_pct": -6.498643860382458, "suppressed_max_gradient_pct": 677.8971957722632, "suppressed_location_m": [ 1710.0, 1712.0 ], "suppressed_min_gradient_pct": -550.3442776728775, "suppressed_min_location_m": [ 1705.0, 1707.0 ] }, { "window_m": 3.0, "max_gradient_pct": 25.03977572019191, "diagnostic": true, "flags": [ "structure_excluded", "structure_excluded_min", "canopy_or_structure" ], "start_distance_m": 1450.0, "end_distance_m": 1453.0, "start_elevation_m": 257.7947161828962, "end_elevation_m": 258.54590945450195, "min_gradient_pct": -6.1690292771061195, "suppressed_max_gradient_pct": 706.864533321675, "suppressed_location_m": [ 1709.0, 1712.0 ], "suppressed_min_gradient_pct": -532.8347877249769, "suppressed_min_location_m": [ 1705.0, 1708.0 ] }, { "window_m": 5.0, "max_gradient_pct": 23.34361484071451, "diagnostic": false, "flags": [ "structure_excluded", "structure_excluded_min", "canopy_or_structure" ], "start_distance_m": 1448.0, "end_distance_m": 1453.0, "start_elevation_m": 257.3787287124662, "end_elevation_m": 258.54590945450195, "min_gradient_pct": -5.7616825764239366, "suppressed_max_gradient_pct": 426.56250632846877, "suppressed_location_m": [ 1709.0, 1714.0 ], "suppressed_min_gradient_pct": -414.05814667706863, "suppressed_min_location_m": [ 1704.0, 1709.0 ] }, { "window_m": 10.0, "max_gradient_pct": 21.788816952619072, "diagnostic": false, "flags": [ "structure_excluded", "structure_excluded_min", "canopy_or_structure" ], "start_distance_m": 1449.0, "end_distance_m": 1459.0, "start_elevation_m": 257.56516828439584, "end_elevation_m": 259.74404997965775, "min_gradient_pct": -5.175782108775024, "suppressed_max_gradient_pct": 216.42792790131125, "suppressed_location_m": [ 1709.0, 1719.0 ], "suppressed_min_gradient_pct": -203.87150111997528, "suppressed_min_location_m": [ 1699.0, 1709.0 ] }, { "window_m": 20.0, "max_gradient_pct": 20.46206155242629, "diagnostic": false, "flags": [ "structure_excluded", "structure_excluded_min", "canopy_or_structure" ], "start_distance_m": 1436.0, "end_distance_m": 1456.0, "start_elevation_m": 255.04146512480486, "end_elevation_m": 259.1338774352901, "min_gradient_pct": -4.090107483941665, "suppressed_max_gradient_pct": 110.87893208753057, "suppressed_location_m": [ 1709.0, 1729.0 ], "suppressed_min_gradient_pct": -99.34024991346035, "suppressed_min_location_m": [ 1689.0, 1709.0 ] }, { "window_m": 25.0, "max_gradient_pct": 20.188977739681718, "diagnostic": false, "flags": [ "structure_excluded", "structure_excluded_min", "canopy_or_structure" ], "start_distance_m": 1435.0, "end_distance_m": 1460.0, "start_elevation_m": 254.86973634639614, "end_elevation_m": 259.91698078131657, "min_gradient_pct": -2.8583557795775505, "suppressed_max_gradient_pct": 89.62544222641897, "suppressed_location_m": [ 1709.0, 1734.0 ], "suppressed_min_gradient_pct": -78.5616618176391, "suppressed_min_location_m": [ 1684.0, 1709.0 ] }, { "window_m": 50.0, "max_gradient_pct": 19.170330504554443, "diagnostic": false, "flags": [ "structure_excluded", "structure_excluded_min", "canopy_or_structure" ], "start_distance_m": 1409.0, "end_distance_m": 1459.0, "start_elevation_m": 250.15888472738052, "end_elevation_m": 259.74404997965775, "min_gradient_pct": 0.7215088117970936, "suppressed_max_gradient_pct": 46.990345037267616, "suppressed_location_m": [ 1709.0, 1759.0 ], "suppressed_min_gradient_pct": -36.397465527466125, "suppressed_min_location_m": [ 1659.0, 1709.0 ] }, { "window_m": 100.0, "max_gradient_pct": 18.597091149965365, "diagnostic": false, "flags": [ "structure_excluded", "structure_excluded_min", "canopy_or_structure" ], "start_distance_m": 1370.0, "end_distance_m": 1470.0, "start_elevation_m": 243.1238846536263, "end_elevation_m": 261.72097580359167, "min_gradient_pct": 2.2163268646411325, "suppressed_max_gradient_pct": 26.00074785241969, "suppressed_location_m": [ 1709.0, 1809.0 ], "suppressed_min_gradient_pct": -16.526096815417077, "suppressed_min_location_m": [ 1609.0, 1709.0 ] } ], "shape": { "ascent_concentration": 0.459, "concentration_window_frac": 0.25, "longest_pitch_10pct_m": 218.0, "shape_class": "stepped" }, "length_m": 5075.476190947516, "start_elevation_m": 142.90922782324668, "end_elevation_m": 416.43410958300433, "endpoint_gain_m": 273.52488175975765, "overall_gradient_pct": 5.389147174950979, "accumulated_ascent_m": 295.84161659122935, "window_maxima": { "max_5m": { "gradient_pct": 23.34361484071451, "start_distance_m": 1448.0, "end_distance_m": 1453.0, "midpoint_distance_m": 1450.5, "start_elevation_m": 257.3787287124662, "end_elevation_m": 258.54590945450195, "start_xy": [ 585947.3526689752, 6459354.8075574925 ], "end_xy": [ 585951.8581676134, 6459352.748370861 ] }, "max_10m": { "gradient_pct": 21.788816952619072, "start_distance_m": 1449.0, "end_distance_m": 1459.0, "midpoint_distance_m": 1454.0, "start_elevation_m": 257.56516828439584, "end_elevation_m": 259.74404997965775, "start_xy": [ 585948.2746104655, 6459354.42022832 ], "end_xy": [ 585955.0405828481, 6459347.661895336 ] }, "max_20m": { "gradient_pct": 20.46206155242629, "start_distance_m": 1436.0, "end_distance_m": 1456.0, "midpoint_distance_m": 1446.0, "start_elevation_m": 255.04146512480486, "end_elevation_m": 259.1338774352901, "start_xy": [ 585936.051188969, 6459355.05814746 ], "end_xy": [ 585953.4493752307, 6459350.205133098 ] }, "max_25m": { "gradient_pct": 20.188977739681718, "start_distance_m": 1435.0, "end_distance_m": 1460.0, "midpoint_distance_m": 1447.5, "start_elevation_m": 254.86973634639614, "end_elevation_m": 259.91698078131657, "start_xy": [ 585935.092804813, 6459354.772665746 ], "end_xy": [ 585955.5709853872, 6459346.814149414 ] }, "max_50m": { "gradient_pct": 19.170330504554443, "start_distance_m": 1409.0, "end_distance_m": 1459.0, "midpoint_distance_m": 1434.0, "start_elevation_m": 250.15888472738052, "end_elevation_m": 259.74404997965775, "start_xy": [ 585910.7390899075, 6459345.735843987 ], "end_xy": [ 585955.0405828481, 6459347.661895336 ] }, "max_100m": { "gradient_pct": 18.597091149965365, "start_distance_m": 1370.0, "end_distance_m": 1470.0, "midpoint_distance_m": 1420.0, "start_elevation_m": 243.1238846536263, "end_elevation_m": 261.72097580359167, "start_xy": [ 585874.5652228843, 6459331.160133213 ], "end_xy": [ 585957.608477756, 6459337.256509096 ] } }, "window_minima": { "min_5m": { "gradient_pct": -5.7616825764239366, "start_distance_m": 2239.0, "end_distance_m": 2244.0, "midpoint_distance_m": 2241.5, "start_elevation_m": 303.58727907204246, "end_elevation_m": 303.29919494322127, "start_xy": [ 586245.8992334096, 6459824.622293109 ], "end_xy": [ 586245.0084744797, 6459829.542308204 ] }, "min_10m": { "gradient_pct": -5.175782108775024, "start_distance_m": 2232.0, "end_distance_m": 2242.0, "midpoint_distance_m": 2237.0, "start_elevation_m": 303.9197864046068, "end_elevation_m": 303.4022081937293, "start_xy": [ 586245.0201922605, 6459817.702698214 ], "end_xy": [ 586245.3647780516, 6459827.574302166 ] }, "min_20m": { "gradient_pct": -4.090107483941665, "start_distance_m": 2225.0, "end_distance_m": 2245.0, "midpoint_distance_m": 2235.0, "start_elevation_m": 304.07176956645486, "end_elevation_m": 303.2537480696665, "start_xy": [ 586243.6412393602, 6459810.910738292 ], "end_xy": [ 586244.8510889232, 6459830.517577437 ] }, "min_25m": { "gradient_pct": -2.8583557795775505, "start_distance_m": 2220.0, "end_distance_m": 2245.0, "midpoint_distance_m": 2232.5, "start_elevation_m": 303.9683370145609, "end_elevation_m": 303.2537480696665, "start_xy": [ 586240.8708493063, 6459806.748414548 ], "end_xy": [ 586244.8510889232, 6459830.517577437 ] }, "min_50m": { "gradient_pct": 0.7215088117970936, "start_distance_m": 2195.0, "end_distance_m": 2245.0, "midpoint_distance_m": 2220.0, "start_elevation_m": 302.892993663768, "end_elevation_m": 303.2537480696665, "start_xy": [ 586227.018899037, 6459785.936795828 ], "end_xy": [ 586244.8510889232, 6459830.517577437 ] }, "min_100m": { "gradient_pct": 2.2163268646411325, "start_distance_m": 285.0, "end_distance_m": 385.0, "midpoint_distance_m": 335.0, "start_elevation_m": 158.02121453691444, "end_elevation_m": 160.23754140155557, "start_xy": [ 585275.9860686184, 6459323.226525281 ], "end_xy": [ 585364.9700924885, 6459366.412053625 ] } }, "diagnostic_window_maxima": { "max_2m": { "gradient_pct": 24.789527128515942, "start_distance_m": 1451.0, "end_distance_m": 1453.0, "midpoint_distance_m": 1452.0, "start_elevation_m": 258.05011891193163, "end_elevation_m": 258.54590945450195, "start_xy": [ 585950.1184934463, 6459353.645569974 ], "end_xy": [ 585951.8581676134, 6459352.748370861 ] }, "max_3m": { "gradient_pct": 25.03977572019191, "start_distance_m": 1450.0, "end_distance_m": 1453.0, "midpoint_distance_m": 1451.5, "start_elevation_m": 257.7947161828962, "end_elevation_m": 258.54590945450195, "start_xy": [ 585949.1965519559, 6459354.032899147 ], "end_xy": [ 585951.8581676134, 6459352.748370861 ] } }, "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": 0.004, "windows_resited": [ 2.0, 3.0, 5.0, 10.0, 20.0, 25.0, 50.0, 100.0 ], "windows_unresolved": [], "minima_resited": [ 2.0, 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": 0.176, "obstruction_max_height_m": 33.17, "flagged_windows_m": [ 3, 5, 10, 20, 25, 50, 100 ] }, "excluded_ranges_m": [ [ 1699.0, 1717.0 ] ], "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-mc1", "road_pbf": "block-batch-fr-mc1.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_E584-N6459_0m5@21LHD2IM-2025-02-20.tif", "data/cache/fr/ign-lidarhd_dtm_E585-N6459_0m5@21LHD2IM-2025-02-20.tif", "data/cache/fr/ign-lidarhd_dtm_E586-N6459_0m5@22LHD3JM-2025-05-14.tif", "data/cache/fr/ign-lidarhd_dtm_E586-N6460_0m5@22LHD3JM-2025-05-14.tif", "data/cache/fr/ign-lidarhd_dtm_E587-N6459_0m5@22LHD3JM-2025-05-14.tif", "data/cache/fr/ign-lidarhd_dtm_E587-N6460_0m5@22LHD3JM-2025-05-14.tif", "data/cache/fr/ign-lidarhd_dtm_E588-N6459_0m5@22LHD3JM-2025-05-14.tif", "data/cache/fr/ign-lidarhd_dtm_E588-N6460_0m5@22LHD3JM-2025-05-14.tif" ], "calculated_at": "2026-09-22T16:03:15+00:00", "road_source": "OpenStreetMap (local PBF extract)", "road_attribution": "\u00a9 OpenStreetMap contributors, ODbL", "osm_pbf_path": "data/cache/pbf/block-batch-fr-mc1.osm.pbf", "osm_snapshot": "", "run_id": "fr-mc1", "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": [ "E584-N6459", "E585-N6459", "E586-N6459", "E586-N6460", "E587-N6459", "E587-N6460", "E588-N6459", "E588-N6460" ], "elevation_blocks": [ "21LHD2IM@2025-02-20", "22LHD3JM@2025-05-14" ], "ign_dalles": [ "LHD_FXX_0584_6460_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0585_6460_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0586_6460_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0586_6461_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0587_6460_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0587_6461_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0588_6460_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0588_6461_MNT_O_0M50_LAMB93_IGN69" ], "ign_missions": [ "21LHD2IM", "22LHD3JM" ], "ign_editions": [ "2025-02-20", "2025-05-14" ], "ign_dsm_edition": { "LHD_FXX_0584_6460_MNT_O_0M50_LAMB93_IGN69": "2025-02-20", "LHD_FXX_0585_6460_MNT_O_0M50_LAMB93_IGN69": "2025-02-20", "LHD_FXX_0586_6460_MNT_O_0M50_LAMB93_IGN69": "2025-05-14", "LHD_FXX_0586_6461_MNT_O_0M50_LAMB93_IGN69": "2025-05-14", "LHD_FXX_0587_6460_MNT_O_0M50_LAMB93_IGN69": "2025-05-14", "LHD_FXX_0587_6461_MNT_O_0M50_LAMB93_IGN69": "2025-05-14", "LHD_FXX_0588_6460_MNT_O_0M50_LAMB93_IGN69": "2025-05-14", "LHD_FXX_0588_6461_MNT_O_0M50_LAMB93_IGN69": "2025-05-14" }, "climb_origin": "discovered", "structure_own_ways": 8, "carriageway": { "stations": 209, "stations_resolved": 209, "width_median_m": 8.0, "width_p10_m": 5.25, "width_min_m": 1.75, "width_max_m": 12.0, "bounded_share": 0.268, "unbounded_share": 0.732, "confidence_median": 0.0, "width_median_bounded_m": 7.75, "window_m": [ 1435.0, 1460.0 ], "width_at_max25_m": 5.5, "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": 209, "stations_resolved": 209, "width_median_m": 6.75, "width_p10_m": 0.7, "width_min_m": 0.0, "width_max_m": 12.0, "bounded_share": 0.746, "unbounded_share": 0.254, "confidence_median": 1.0, "width_median_bounded_m": 5.25, "window_m": [ 1435.0, 1460.0 ], "width_at_max25_m": 1.38, "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": "Donzenac", "county": "Corr\u00e8ze", "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)" } }