{ "ocl_version": "0.1.0", "name": "Discovered lane (45.8644, 5.5657)", "slug": "discovered-lane-45-8644-5-5657", "confidence": "B", "reported_claims": [], "ladder": [ { "window_m": 2.0, "max_gradient_pct": 39.768113338016065, "diagnostic": true, "flags": [ "canopy_or_structure" ], "start_distance_m": 5005.0, "end_distance_m": 5007.0, "start_elevation_m": 705.1751130887388, "end_elevation_m": 705.9704753554992, "min_gradient_pct": -15.832220893878457 }, { "window_m": 3.0, "max_gradient_pct": 36.02445601721911, "diagnostic": true, "flags": [ "canopy_or_structure" ], "start_distance_m": 5005.0, "end_distance_m": 5008.0, "start_elevation_m": 705.1751130887388, "end_elevation_m": 706.2558467692554, "min_gradient_pct": -14.847383771681658 }, { "window_m": 5.0, "max_gradient_pct": 26.141597723146788, "diagnostic": false, "flags": [ "suppression_unstable", "canopy_or_structure" ], "start_distance_m": 5244.0, "end_distance_m": 5249.0, "start_elevation_m": 729.9461760505714, "end_elevation_m": 731.2532559367287, "min_gradient_pct": -14.141420774528797 }, { "window_m": 10.0, "max_gradient_pct": 21.3403149225951, "diagnostic": false, "flags": [], "start_distance_m": 8896.0, "end_distance_m": 8906.0, "start_elevation_m": 889.8409002484875, "end_elevation_m": 891.974931740747, "min_gradient_pct": -11.349725785630653 }, { "window_m": 20.0, "max_gradient_pct": 20.40854740056716, "diagnostic": false, "flags": [], "start_distance_m": 8891.0, "end_distance_m": 8911.0, "start_elevation_m": 888.8826615940152, "end_elevation_m": 892.9643710741286, "min_gradient_pct": -8.58508927324067 }, { "window_m": 25.0, "max_gradient_pct": 19.570976022486775, "diagnostic": false, "flags": [], "start_distance_m": 8889.0, "end_distance_m": 8914.0, "start_elevation_m": 888.5715538237253, "end_elevation_m": 893.464297829347, "min_gradient_pct": -7.918631541944251 }, { "window_m": 50.0, "max_gradient_pct": 15.022103882655756, "diagnostic": false, "flags": [ "canopy_or_structure" ], "start_distance_m": 8886.0, "end_distance_m": 8936.0, "start_elevation_m": 888.1974808529427, "end_elevation_m": 895.7085327942706, "min_gradient_pct": -5.133081818496066 }, { "window_m": 100.0, "max_gradient_pct": 12.333512516399992, "diagnostic": false, "flags": [ "canopy_or_structure" ], "start_distance_m": 7589.0, "end_distance_m": 7689.0, "start_elevation_m": 820.8610380469541, "end_elevation_m": 833.1945505633541, "min_gradient_pct": -4.181326365202494 } ], "shape": { "ascent_concentration": 0.348, "concentration_window_frac": 0.25, "longest_pitch_10pct_m": 105.0, "shape_class": "sustained" }, "length_m": 9005.141037587055, "start_elevation_m": 349.8390123376455, "end_elevation_m": 895.0293107714898, "endpoint_gain_m": 545.1902984338443, "overall_gradient_pct": 6.054211657077268, "accumulated_ascent_m": 577.8097499977168, "window_maxima": { "max_5m": { "gradient_pct": 26.141597723146788, "start_distance_m": 5244.0, "end_distance_m": 5249.0, "midpoint_distance_m": 5246.5, "start_elevation_m": 729.9461760505714, "end_elevation_m": 731.2532559367287, "start_xy": [ 897869.6714194621, 6532487.863084334 ], "end_xy": [ 897869.3573692518, 6532492.853211833 ] }, "max_10m": { "gradient_pct": 21.3403149225951, "start_distance_m": 8896.0, "end_distance_m": 8906.0, "midpoint_distance_m": 8901.0, "start_elevation_m": 889.8409002484875, "end_elevation_m": 891.974931740747, "start_xy": [ 899258.6243543273, 6533611.237742304 ], "end_xy": [ 899262.6364538269, 6533620.396641456 ] }, "max_20m": { "gradient_pct": 20.40854740056716, "start_distance_m": 8891.0, "end_distance_m": 8911.0, "midpoint_distance_m": 8901.0, "start_elevation_m": 888.8826615940152, "end_elevation_m": 892.9643710741286, "start_xy": [ 899256.7462022009, 6533606.603894595 ], "end_xy": [ 899264.6716755882, 6533624.963683428 ] }, "max_25m": { "gradient_pct": 19.570976022486775, "start_distance_m": 8889.0, "end_distance_m": 8914.0, "midpoint_distance_m": 8901.5, "start_elevation_m": 888.5715538237253, "end_elevation_m": 893.464297829347, "start_xy": [ 899255.9949413503, 6533604.750355511 ], "end_xy": [ 899266.4542918825, 6533627.349634882 ] }, "max_50m": { "gradient_pct": 15.022103882655756, "start_distance_m": 8886.0, "end_distance_m": 8936.0, "midpoint_distance_m": 8911.0, "start_elevation_m": 888.1974808529427, "end_elevation_m": 895.7085327942706, "start_xy": [ 899254.8680500744, 6533601.970046885 ], "end_xy": [ 899281.7440501793, 6533643.140250575 ] }, "max_100m": { "gradient_pct": 12.333512516399992, "start_distance_m": 7589.0, "end_distance_m": 7689.0, "midpoint_distance_m": 7639.0, "start_elevation_m": 820.8610380469541, "end_elevation_m": 833.1945505633541, "start_xy": [ 899230.0914767705, 6532918.090256802 ], "end_xy": [ 899288.1107856483, 6532977.534865312 ] } }, "window_minima": { "min_5m": { "gradient_pct": -14.141420774528797, "start_distance_m": 8997.0, "end_distance_m": 9002.0, "midpoint_distance_m": 8999.5, "start_elevation_m": 895.9440944587413, "end_elevation_m": 895.2370234200149, "start_xy": [ 899320.680086997, 6533689.794231495 ], "end_xy": [ 899323.5107538215, 6533693.915799804 ] }, "min_10m": { "gradient_pct": -11.349725785630653, "start_distance_m": 8993.0, "end_distance_m": 9003.0, "midpoint_distance_m": 8998.0, "start_elevation_m": 896.2656578319159, "end_elevation_m": 895.1306852533528, "start_xy": [ 899318.4155535373, 6533686.496976848 ], "end_xy": [ 899324.0768871864, 6533694.740113466 ] }, "min_20m": { "gradient_pct": -8.58508927324067, "start_distance_m": 6765.0, "end_distance_m": 6785.0, "midpoint_distance_m": 6775.0, "start_elevation_m": 802.0401877475011, "end_elevation_m": 800.323169892853, "start_xy": [ 898631.9158806371, 6532786.398902538 ], "end_xy": [ 898651.3133542215, 6532789.720275659 ] }, "min_25m": { "gradient_pct": -7.918631541944251, "start_distance_m": 6765.0, "end_distance_m": 6790.0, "midpoint_distance_m": 6777.5, "start_elevation_m": 802.0401877475011, "end_elevation_m": 800.0605298620151, "start_xy": [ 898631.9158806371, 6532786.398902538 ], "end_xy": [ 898656.3072497902, 6532789.4732796075 ] }, "min_50m": { "gradient_pct": -5.133081818496066, "start_distance_m": 6763.0, "end_distance_m": 6813.0, "midpoint_distance_m": 6788.0, "start_elevation_m": 802.107388882025, "end_elevation_m": 799.540847972777, "start_xy": [ 898630.3252623213, 6532785.204244419 ], "end_xy": [ 898679.1694121836, 6532787.003156297 ] }, "min_100m": { "gradient_pct": -4.181326365202494, "start_distance_m": 6765.0, "end_distance_m": 6865.0, "midpoint_distance_m": 6815.0, "start_elevation_m": 802.0401877475011, "end_elevation_m": 797.8588613822986, "start_xy": [ 898631.9158806371, 6532786.398902538 ], "end_xy": [ 898726.8654123347, 6532767.7820991585 ] } }, "diagnostic_window_maxima": { "max_2m": { "gradient_pct": 39.768113338016065, "start_distance_m": 5005.0, "end_distance_m": 5007.0, "midpoint_distance_m": 5006.0, "start_elevation_m": 705.1751130887388, "end_elevation_m": 705.9704753554992, "start_xy": [ 897784.4441693143, 6532647.467783387 ], "end_xy": [ 897785.3165253092, 6532645.66806257 ] }, "max_3m": { "gradient_pct": 36.02445601721911, "start_distance_m": 5005.0, "end_distance_m": 5008.0, "midpoint_distance_m": 5006.5, "start_elevation_m": 705.1751130887388, "end_elevation_m": 706.2558467692554, "start_xy": [ 897784.4441693143, 6532647.467783387 ], "end_xy": [ 897785.7527033067, 6532644.768202161 ] } }, "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": { "texture_windows": { "rounds": 0, "windows_masked": [], "advisory": [], "unresolved": [], "unstable": [ { "window_m": 5.0, "start_m": 5244.0, "end_m": 5249.0, "raw_pct": 26.14, "reason": "short-step", "perturbations": [ "phase+0.000/mask+0", "phase+0.333/mask+1", "phase+0.667/mask-1" ], "perturbation_reasons": [ "short-step", "short-step", "" ] } ] }, "overhead_obstruction": { "obstruction_threshold_m": 2.0, "obstructed_fraction": 0.179, "obstruction_max_height_m": 23.61, "flagged_windows_m": [ 2, 3, 5.0, 50, 100 ] }, "review": [], "extent": [ "may_start_earlier", "descends_at_end" ] }, "provenance": { "analysis_version": "0.1.0", "run_manifest": { "manifest_version": "1", "code_git_sha": "c4fd6b4a89a9718922c7ed8acdf14e43dcf75a33", "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-ju1", "road_pbf": "block-batch-fr-ju1.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": "sha256:78945c7930496bfe" }, "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_E897-N6530_0m5@21LHD6PL-2025-03-07.tif", "data/cache/fr/ign-lidarhd_dtm_E897-N6531_0m5@21LHD6PL-2025-03-07.tif", "data/cache/fr/ign-lidarhd_dtm_E897-N6532_0m5@21LHD6PL-2025-03-07.tif", "data/cache/fr/ign-lidarhd_dtm_E897-N6533_0m5@21LHD5PK1-2024-12-19.tif", "data/cache/fr/ign-lidarhd_dtm_E898-N6530_0m5@21LHD6PL-2025-03-07.tif", "data/cache/fr/ign-lidarhd_dtm_E898-N6531_0m5@21LHD6PL-2025-03-07.tif", "data/cache/fr/ign-lidarhd_dtm_E898-N6532_0m5@21LHD6PL-2025-03-07.tif", "data/cache/fr/ign-lidarhd_dtm_E898-N6533_0m5@21LHD5PK1-2024-12-19.tif", "data/cache/fr/ign-lidarhd_dtm_E899-N6530_0m5@21LHD6PL-2025-03-07.tif", "data/cache/fr/ign-lidarhd_dtm_E899-N6531_0m5@21LHD6PL-2025-03-07.tif", "data/cache/fr/ign-lidarhd_dtm_E899-N6532_0m5@21LHD6PL-2025-03-07.tif", "data/cache/fr/ign-lidarhd_dtm_E899-N6533_0m5@21LHD5PK1-2024-12-19.tif" ], "calculated_at": "2026-09-24T11:05:24+00:00", "road_source": "OpenStreetMap (local PBF extract)", "road_attribution": "\u00a9 OpenStreetMap contributors, ODbL", "osm_pbf_path": "data/cache/pbf/block-batch-fr-ju1.osm.pbf", "osm_snapshot": "", "run_id": "fr-ju1", "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": [ "E897-N6530", "E897-N6531", "E897-N6532", "E897-N6533", "E898-N6530", "E898-N6531", "E898-N6532", "E898-N6533", "E899-N6530", "E899-N6531", "E899-N6532", "E899-N6533" ], "elevation_blocks": [ "21LHD5PK1@2024-12-19", "21LHD6PL@2025-03-07" ], "ign_dalles": [ "LHD_FXX_0897_6531_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0897_6532_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0897_6533_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0897_6534_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0898_6531_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0898_6532_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0898_6533_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0898_6534_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0899_6531_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0899_6532_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0899_6533_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0899_6534_MNT_O_0M50_LAMB93_IGN69" ], "ign_missions": [ "21LHD5PK1", "21LHD6PL" ], "ign_editions": [ "2024-12-19", "2025-03-07" ], "ign_dsm_edition": { "LHD_FXX_0897_6531_MNT_O_0M50_LAMB93_IGN69": "2025-03-07", "LHD_FXX_0897_6532_MNT_O_0M50_LAMB93_IGN69": "2025-03-07", "LHD_FXX_0897_6533_MNT_O_0M50_LAMB93_IGN69": "2025-03-07", "LHD_FXX_0897_6534_MNT_O_0M50_LAMB93_IGN69": "2024-12-19", "LHD_FXX_0898_6531_MNT_O_0M50_LAMB93_IGN69": "2025-03-07", "LHD_FXX_0898_6532_MNT_O_0M50_LAMB93_IGN69": "2025-03-07", "LHD_FXX_0898_6533_MNT_O_0M50_LAMB93_IGN69": "2025-03-07", "LHD_FXX_0898_6534_MNT_O_0M50_LAMB93_IGN69": "2024-12-19", "LHD_FXX_0899_6531_MNT_O_0M50_LAMB93_IGN69": "2025-03-07", "LHD_FXX_0899_6532_MNT_O_0M50_LAMB93_IGN69": "2025-03-07", "LHD_FXX_0899_6533_MNT_O_0M50_LAMB93_IGN69": "2025-03-07", "LHD_FXX_0899_6534_MNT_O_0M50_LAMB93_IGN69": "2024-12-19" }, "climb_origin": "discovered", "structure_own_ways": 9, "suppression_unstable": [ 5.0 ], "carriageway": { "stations": 367, "stations_resolved": 367, "width_median_m": 5.0, "width_p10_m": 3.65, "width_min_m": 1.25, "width_max_m": 12.0, "bounded_share": 0.474, "unbounded_share": 0.526, "confidence_median": 0.0, "width_median_bounded_m": 5.0, "window_m": [ 8889.0, 8914.0 ], "width_at_max25_m": 4.0, "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": 367, "stations_resolved": 367, "width_median_m": 5.25, "width_p10_m": 0.75, "width_min_m": 0.0, "width_max_m": 12.0, "bounded_share": 0.877, "unbounded_share": 0.123, "confidence_median": 1.0, "width_median_bounded_m": 4.75, "window_m": [ 8889.0, 8914.0 ], "width_at_max25_m": 3.5, "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": "La Burbanche", "county": "Ain", "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)" } }