{ "ocl_version": "0.1.0", "name": "Discovered lane (45.5439, 4.4761)", "slug": "discovered-lane-45-5439-4-4761", "confidence": "A", "reported_claims": [], "ladder": [ { "window_m": 2.0, "max_gradient_pct": 24.67406327369872, "diagnostic": true, "flags": [], "start_distance_m": 87.0, "end_distance_m": 89.0, "start_elevation_m": 831.3280564028635, "end_elevation_m": 831.8215376683374, "min_gradient_pct": -0.11272240911353038 }, { "window_m": 3.0, "max_gradient_pct": 24.650839667189455, "diagnostic": true, "flags": [], "start_distance_m": 86.0, "end_distance_m": 89.0, "start_elevation_m": 831.0820124783218, "end_elevation_m": 831.8215376683374, "min_gradient_pct": 0.004016236751643494 }, { "window_m": 5.0, "max_gradient_pct": 24.451213408860895, "diagnostic": false, "flags": [], "start_distance_m": 86.0, "end_distance_m": 91.0, "start_elevation_m": 831.0820124783218, "end_elevation_m": 832.3045731487648, "min_gradient_pct": 0.548810066381975 }, { "window_m": 10.0, "max_gradient_pct": 24.081214695274866, "diagnostic": false, "flags": [], "start_distance_m": 82.0, "end_distance_m": 92.0, "start_elevation_m": 830.1380356616153, "end_elevation_m": 832.5461571311428, "min_gradient_pct": 1.0065211855453526 }, { "window_m": 20.0, "max_gradient_pct": 23.70453721011586, "diagnostic": false, "flags": [], "start_distance_m": 74.0, "end_distance_m": 94.0, "start_elevation_m": 828.2718831956197, "end_elevation_m": 833.0127906376429, "min_gradient_pct": 2.492306877259125 }, { "window_m": 25.0, "max_gradient_pct": 23.327803374513678, "diagnostic": false, "flags": [], "start_distance_m": 69.0, "end_distance_m": 94.0, "start_elevation_m": 827.1808397940144, "end_elevation_m": 833.0127906376429, "min_gradient_pct": 3.153808631838274 }, { "window_m": 50.0, "max_gradient_pct": 19.550336119562417, "diagnostic": false, "flags": [], "start_distance_m": 69.0, "end_distance_m": 119.0, "start_elevation_m": 827.1808397940144, "end_elevation_m": 836.9560078537957, "min_gradient_pct": 4.651902942548986 }, { "window_m": 100.0, "max_gradient_pct": 17.085537041999032, "diagnostic": false, "flags": [], "start_distance_m": 55.0, "end_distance_m": 155.0, "start_elevation_m": 824.9611150408543, "end_elevation_m": 842.0466520828534, "min_gradient_pct": 9.0629487772743 } ], "shape": { "ascent_concentration": 0.373, "concentration_window_frac": 0.25, "longest_pitch_10pct_m": 200.0, "shape_class": "sustained" }, "length_m": 424.0000000000326, "start_elevation_m": 822.2419955429715, "end_elevation_m": 870.2188904545994, "endpoint_gain_m": 47.97689491162794, "overall_gradient_pct": 11.315305403684963, "accumulated_ascent_m": 47.982629612697224, "window_maxima": { "max_5m": { "gradient_pct": 24.451213408860895, "start_distance_m": 86.0, "end_distance_m": 91.0, "midpoint_distance_m": 88.5, "start_elevation_m": 831.0820124783218, "end_elevation_m": 832.3045731487648, "start_xy": [ 815242.3994706243, 6494805.263120962 ], "end_xy": [ 815238.4666726434, 6494808.278703943 ] }, "max_10m": { "gradient_pct": 24.081214695274866, "start_distance_m": 82.0, "end_distance_m": 92.0, "midpoint_distance_m": 87.0, "start_elevation_m": 830.1380356616153, "end_elevation_m": 832.5461571311428, "start_xy": [ 815245.0534613945, 6494802.270407646 ], "end_xy": [ 815237.62034773, 6494808.811370951 ] }, "max_20m": { "gradient_pct": 23.70453721011586, "start_distance_m": 74.0, "end_distance_m": 94.0, "midpoint_distance_m": 84.0, "start_elevation_m": 828.2718831956197, "end_elevation_m": 833.0127906376429, "start_xy": [ 815250.3614429351, 6494796.284981014 ], "end_xy": [ 815235.9276979034, 6494809.876704966 ] }, "max_25m": { "gradient_pct": 23.327803374513678, "start_distance_m": 69.0, "end_distance_m": 94.0, "midpoint_distance_m": 81.5, "start_elevation_m": 827.1808397940144, "end_elevation_m": 833.0127906376429, "start_xy": [ 815254.4027787929, 6494793.43070868 ], "end_xy": [ 815235.9276979034, 6494809.876704966 ] }, "max_50m": { "gradient_pct": 19.550336119562417, "start_distance_m": 69.0, "end_distance_m": 119.0, "midpoint_distance_m": 94.0, "start_elevation_m": 827.1808397940144, "end_elevation_m": 836.9560078537957, "start_xy": [ 815254.4027787929, 6494793.43070868 ], "end_xy": [ 815220.702633678, 6494829.160890575 ] }, "max_100m": { "gradient_pct": 17.085537041999032, "start_distance_m": 55.0, "end_distance_m": 155.0, "midpoint_distance_m": 105.0, "start_elevation_m": 824.9611150408543, "end_elevation_m": 842.0466520828534, "start_xy": [ 815267.2778146743, 6494794.660907039 ], "end_xy": [ 815209.8788925128, 6494863.308147717 ] } }, "window_minima": { "min_5m": { "gradient_pct": 0.548810066381975, "start_distance_m": 419.0, "end_distance_m": 424.0, "midpoint_distance_m": 421.5, "start_elevation_m": 870.1914499512803, "end_elevation_m": 870.2188904545994, "start_xy": [ 814966.1259417393, 6494900.208256322 ], "end_xy": [ 814961.1264702193, 6494900.135561605 ] }, "min_10m": { "gradient_pct": 1.0065211855453526, "start_distance_m": 414.0, "end_distance_m": 424.0, "midpoint_distance_m": 419.0, "start_elevation_m": 870.1182383360449, "end_elevation_m": 870.2188904545994, "start_xy": [ 814971.1254132591, 6494900.280951039 ], "end_xy": [ 814961.1264702193, 6494900.135561605 ] }, "min_20m": { "gradient_pct": 2.492306877259125, "start_distance_m": 404.0, "end_distance_m": 424.0, "midpoint_distance_m": 414.0, "start_elevation_m": 869.7204290791476, "end_elevation_m": 870.2188904545994, "start_xy": [ 814981.1243562989, 6494900.426340474 ], "end_xy": [ 814961.1264702193, 6494900.135561605 ] }, "min_25m": { "gradient_pct": 3.153808631838274, "start_distance_m": 399.0, "end_distance_m": 424.0, "midpoint_distance_m": 411.5, "start_elevation_m": 869.4304382966399, "end_elevation_m": 870.2188904545994, "start_xy": [ 814986.1238278188, 6494900.499035191 ], "end_xy": [ 814961.1264702193, 6494900.135561605 ] }, "min_50m": { "gradient_pct": 4.651902942548986, "start_distance_m": 0.0, "end_distance_m": 50.0, "midpoint_distance_m": 25.0, "start_elevation_m": 822.2419955429715, "end_elevation_m": 824.567947014246, "start_xy": [ 815311.041, 6494826.284 ], "end_xy": [ 815272.0137195819, 6494796.264404687 ] }, "min_100m": { "gradient_pct": 9.0629487772743, "start_distance_m": 324.0, "end_distance_m": 424.0, "midpoint_distance_m": 374.0, "start_elevation_m": 861.1559416773251, "end_elevation_m": 870.2188904545994, "start_xy": [ 815060.9985849783, 6494897.903455768 ], "end_xy": [ 814961.1264702193, 6494900.135561605 ] } }, "diagnostic_window_maxima": { "max_2m": { "gradient_pct": 24.67406327369872, "start_distance_m": 87.0, "end_distance_m": 89.0, "midpoint_distance_m": 88.0, "start_elevation_m": 831.3280564028635, "end_elevation_m": 831.8215376683374, "start_xy": [ 815241.7359729317, 6494806.011299292 ], "end_xy": [ 815240.1593224702, 6494807.213369928 ] }, "max_3m": { "gradient_pct": 24.650839667189455, "start_distance_m": 86.0, "end_distance_m": 89.0, "midpoint_distance_m": 87.5, "start_elevation_m": 831.0820124783218, "end_elevation_m": 831.8215376683374, "start_xy": [ 815242.3994706243, 6494805.263120962 ], "end_xy": [ 815240.1593224702, 6494807.213369928 ] } }, "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": 0.0, "obstruction_max_height_m": 0.0, "flagged_windows_m": [] }, "review": [], "extent": [] }, "provenance": { "analysis_version": "0.1.0", "run_manifest": { "manifest_version": "1", "code_git_sha": "076a8e7f889cfb3c2cf6b3de65a6030c7155b1f0", "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-mc7", "road_pbf": "block-batch-fr-mc7.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_E814-N6494_0m5@22LHD4NL-2025-08-06.tif", "data/cache/fr/ign-lidarhd_dtm_E814-N6495_0m5@22LHD4NL-2025-08-06.tif", "data/cache/fr/ign-lidarhd_dtm_E815-N6494_0m5@22LHD4NL-2025-08-06.tif", "data/cache/fr/ign-lidarhd_dtm_E815-N6495_0m5@22LHD4NL-2025-08-06.tif" ], "calculated_at": "2026-09-22T15:49:32+00:00", "road_source": "OpenStreetMap (local PBF extract)", "road_attribution": "\u00a9 OpenStreetMap contributors, ODbL", "osm_pbf_path": "data/cache/pbf/block-batch-fr-mc7.osm.pbf", "osm_snapshot": "", "run_id": "fr-mc7", "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": [ "E814-N6494", "E814-N6495", "E815-N6494", "E815-N6495" ], "elevation_blocks": [ "22LHD4NL@2025-08-06" ], "ign_dalles": [ "LHD_FXX_0814_6495_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0814_6496_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0815_6495_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0815_6496_MNT_O_0M50_LAMB93_IGN69" ], "ign_missions": [ "22LHD4NL" ], "ign_editions": [ "2025-08-06" ], "ign_dsm_edition": { "LHD_FXX_0814_6495_MNT_O_0M50_LAMB93_IGN69": "2025-08-06", "LHD_FXX_0814_6496_MNT_O_0M50_LAMB93_IGN69": "2025-08-06", "LHD_FXX_0815_6495_MNT_O_0M50_LAMB93_IGN69": "2025-08-06", "LHD_FXX_0815_6496_MNT_O_0M50_LAMB93_IGN69": "2025-08-06" }, "route_summit_trim_m": 632.6, "route_summit_trim_loss_m": 18.5, "climb_origin": "discovered", "structure_own_ways": 2, "carriageway": { "stations": 23, "stations_resolved": 23, "width_median_m": 6.25, "width_p10_m": 3.55, "width_min_m": 3.25, "width_max_m": 9.75, "bounded_share": 0.13, "unbounded_share": 0.87, "confidence_median": 0.0, "width_median_bounded_m": 4.0, "window_m": [ 69.0, 94.0 ], "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": 23, "stations_resolved": 23, "width_median_m": 9.5, "width_p10_m": 5.45, "width_min_m": 3.75, "width_max_m": 12.0, "bounded_share": 0.261, "unbounded_share": 0.739, "confidence_median": 0.0, "width_median_bounded_m": 5.75, "window_m": [ 69.0, 94.0 ], "width_at_max25_m": 9.25, "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-Christo-en-Jarez", "county": "Loire", "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)" } }