{ "ocl_version": "0.1.0", "name": "Discovered lane (45.5372, 3.1023)", "slug": "discovered-lane-45-5372-3-1023", "confidence": "A", "reported_claims": [], "ladder": [ { "window_m": 2.0, "max_gradient_pct": 35.86230708050948, "diagnostic": true, "flags": [], "start_distance_m": 2012.0, "end_distance_m": 2014.0, "start_elevation_m": 786.4188958672567, "end_elevation_m": 787.1361420088668, "min_gradient_pct": -37.02624524077578 }, { "window_m": 3.0, "max_gradient_pct": 29.23817838953558, "diagnostic": true, "flags": [], "start_distance_m": 2012.0, "end_distance_m": 2015.0, "start_elevation_m": 786.4188958672567, "end_elevation_m": 787.2960412189427, "min_gradient_pct": -33.73297984574416 }, { "window_m": 5.0, "max_gradient_pct": 24.610172856475856, "diagnostic": false, "flags": [], "start_distance_m": 1686.0, "end_distance_m": 1691.0, "start_elevation_m": 771.2075817554494, "end_elevation_m": 772.4380903982732, "min_gradient_pct": -22.447391775756387 }, { "window_m": 10.0, "max_gradient_pct": 22.696582200428566, "diagnostic": false, "flags": [], "start_distance_m": 148.0, "end_distance_m": 158.0, "start_elevation_m": 716.6765082522745, "end_elevation_m": 718.9461664723174, "min_gradient_pct": -9.140085846082684 }, { "window_m": 20.0, "max_gradient_pct": 22.060540504825212, "diagnostic": false, "flags": [], "start_distance_m": 136.0, "end_distance_m": 156.0, "start_elevation_m": 714.1136787686495, "end_elevation_m": 718.5257868696145, "min_gradient_pct": -8.139129399623926 }, { "window_m": 25.0, "max_gradient_pct": 21.919833161824954, "diagnostic": false, "flags": [], "start_distance_m": 131.0, "end_distance_m": 156.0, "start_elevation_m": 713.0458285791583, "end_elevation_m": 718.5257868696145, "min_gradient_pct": -8.152013285161956 }, { "window_m": 50.0, "max_gradient_pct": 21.343565491824165, "diagnostic": false, "flags": [], "start_distance_m": 110.0, "end_distance_m": 160.0, "start_elevation_m": 708.6401557219191, "end_elevation_m": 719.3119384678312, "min_gradient_pct": -7.199353100488906 }, { "window_m": 100.0, "max_gradient_pct": 18.14218734474514, "diagnostic": false, "flags": [], "start_distance_m": 99.0, "end_distance_m": 199.0, "start_elevation_m": 707.2543255612994, "end_elevation_m": 725.3965129060446, "min_gradient_pct": -3.747172379254039 } ], "shape": { "ascent_concentration": 0.373, "concentration_window_frac": 0.25, "longest_pitch_10pct_m": 133.0, "shape_class": "sustained" }, "length_m": 2020.357292903451, "start_elevation_m": 700.7384801306217, "end_elevation_m": 786.8996157348738, "endpoint_gain_m": 86.16113560425208, "overall_gradient_pct": 4.264648431586579, "accumulated_ascent_m": 113.2612466974407, "window_maxima": { "max_5m": { "gradient_pct": 24.610172856475856, "start_distance_m": 1686.0, "end_distance_m": 1691.0, "midpoint_distance_m": 1688.5, "start_elevation_m": 771.2075817554494, "end_elevation_m": 772.4380903982732, "start_xy": [ 707458.8380205305, 6492381.5067097265 ], "end_xy": [ 707455.3137442382, 6492384.877560441 ] }, "max_10m": { "gradient_pct": 22.696582200428566, "start_distance_m": 148.0, "end_distance_m": 158.0, "midpoint_distance_m": 153.0, "start_elevation_m": 716.6765082522745, "end_elevation_m": 718.9461664723174, "start_xy": [ 708123.6424197187, 6493511.283487369 ], "end_xy": [ 708114.756825032, 6493506.6958728405 ] }, "max_20m": { "gradient_pct": 22.060540504825212, "start_distance_m": 136.0, "end_distance_m": 156.0, "midpoint_distance_m": 146.0, "start_elevation_m": 714.1136787686495, "end_elevation_m": 718.5257868696145, "start_xy": [ 708134.3051333427, 6493516.788624804 ], "end_xy": [ 708116.5339439693, 6493507.613395746 ] }, "max_25m": { "gradient_pct": 21.919833161824954, "start_distance_m": 131.0, "end_distance_m": 156.0, "midpoint_distance_m": 143.5, "start_elevation_m": 713.0458285791583, "end_elevation_m": 718.5257868696145, "start_xy": [ 708138.7479306862, 6493519.082432068 ], "end_xy": [ 708116.5339439693, 6493507.613395746 ] }, "max_50m": { "gradient_pct": 21.343565491824165, "start_distance_m": 110.0, "end_distance_m": 160.0, "midpoint_distance_m": 135.0, "start_elevation_m": 708.6401557219191, "end_elevation_m": 719.3119384678312, "start_xy": [ 708157.9525610289, 6493525.86108962 ], "end_xy": [ 708112.9797060946, 6493505.778349935 ] }, "max_100m": { "gradient_pct": 18.14218734474514, "start_distance_m": 99.0, "end_distance_m": 199.0, "midpoint_distance_m": 149.0, "start_elevation_m": 707.2543255612994, "end_elevation_m": 725.3965129060446, "start_xy": [ 708167.2045875083, 6493520.7476274045 ], "end_xy": [ 708105.9423080856, 6493469.141699557 ] } }, "window_minima": { "min_5m": { "gradient_pct": -22.447391775756387, "start_distance_m": 454.0, "end_distance_m": 459.0, "midpoint_distance_m": 456.5, "start_elevation_m": 735.6607399334921, "end_elevation_m": 734.5383703447043, "start_xy": [ 708040.220504602, 6493227.109352175 ], "end_xy": [ 708039.7266576075, 6493222.133800433 ] }, "min_10m": { "gradient_pct": -9.140085846082684, "start_distance_m": 455.0, "end_distance_m": 465.0, "midpoint_distance_m": 460.0, "start_elevation_m": 735.6192318088952, "end_elevation_m": 734.7052232242869, "start_xy": [ 708040.1217352031, 6493226.114241827 ], "end_xy": [ 708039.134041214, 6493216.163138341 ] }, "min_20m": { "gradient_pct": -8.139129399623926, "start_distance_m": 329.0, "end_distance_m": 349.0, "midpoint_distance_m": 339.0, "start_elevation_m": 731.7283447278533, "end_elevation_m": 730.1005188479285, "start_xy": [ 708067.5812044139, 6493346.729777059 ], "end_xy": [ 708067.9654166754, 6493326.768855134 ] }, "min_25m": { "gradient_pct": -8.152013285161956, "start_distance_m": 324.0, "end_distance_m": 349.0, "midpoint_distance_m": 336.5, "start_elevation_m": 732.138522169219, "end_elevation_m": 730.1005188479285, "start_xy": [ 708067.6552576064, 6493351.729228641 ], "end_xy": [ 708067.9654166754, 6493326.768855134 ] }, "min_50m": { "gradient_pct": -7.199353100488906, "start_distance_m": 314.0, "end_distance_m": 364.0, "midpoint_distance_m": 339.0, "start_elevation_m": 732.8172636109492, "end_elevation_m": 729.2175870607048, "start_xy": [ 708069.1710678686, 6493361.6039144425 ], "end_xy": [ 708066.1858820989, 6493311.875498453 ] }, "min_100m": { "gradient_pct": -3.747172379254039, "start_distance_m": 278.0, "end_distance_m": 378.0, "midpoint_distance_m": 328.0, "start_elevation_m": 732.8571869664055, "end_elevation_m": 729.1100145871515, "start_xy": [ 708076.1495399951, 6493396.874148046 ], "end_xy": [ 708061.324146843, 6493299.01971999 ] } }, "diagnostic_window_maxima": { "max_2m": { "gradient_pct": 35.86230708050948, "start_distance_m": 2012.0, "end_distance_m": 2014.0, "midpoint_distance_m": 2013.0, "start_elevation_m": 786.4188958672567, "end_elevation_m": 787.1361420088668, "start_xy": [ 707166.2426266578, 6492262.796059425 ], "end_xy": [ 707164.6055830034, 6492261.647108567 ] }, "max_3m": { "gradient_pct": 29.23817838953558, "start_distance_m": 2012.0, "end_distance_m": 2015.0, "midpoint_distance_m": 2013.5, "start_elevation_m": 786.4188958672567, "end_elevation_m": 787.2960412189427, "start_xy": [ 707166.2426266578, 6492262.796059425 ], "end_xy": [ 707163.7870611763, 6492261.072633139 ] } }, "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": { "no_bench_suppression": { "masked_fraction": 0.046, "windows_resited": [], "windows_unresolved": [], "minima_resited": [], "minima_unresolved": [] }, "overhead_obstruction": { "obstruction_threshold_m": 2.0, "obstructed_fraction": 0.361, "obstruction_max_height_m": 17.94, "flagged_windows_m": [] }, "excluded_ranges_m": [ [ 1720.0, 1750.0 ], [ 1780.0, 1840.0 ] ], "review": [], "extent": [ "may_start_earlier", "may_continue_beyond_end" ] }, "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_E707-N6492_0m5@22LHD4LL-2025-07-24.tif", "data/cache/fr/ign-lidarhd_dtm_E707-N6493_0m5@22LHD4LL-2025-07-24.tif", "data/cache/fr/ign-lidarhd_dtm_E708-N6492_0m5@22LHD4LL-2025-07-24.tif", "data/cache/fr/ign-lidarhd_dtm_E708-N6493_0m5@22LHD4LL-2025-07-24.tif" ], "calculated_at": "2026-09-22T15:54:30+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": [ "E707-N6492", "E707-N6493", "E708-N6492", "E708-N6493" ], "elevation_blocks": [ "22LHD4LL@2025-07-24" ], "ign_dalles": [ "LHD_FXX_0707_6493_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0707_6494_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0708_6493_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0708_6494_MNT_O_0M50_LAMB93_IGN69" ], "ign_missions": [ "22LHD4LL" ], "ign_editions": [ "2025-07-24" ], "ign_dsm_edition": { "LHD_FXX_0707_6493_MNT_O_0M50_LAMB93_IGN69": "2025-07-24", "LHD_FXX_0707_6494_MNT_O_0M50_LAMB93_IGN69": "2025-07-24", "LHD_FXX_0708_6493_MNT_O_0M50_LAMB93_IGN69": "2025-07-24", "LHD_FXX_0708_6494_MNT_O_0M50_LAMB93_IGN69": "2025-07-24" }, "climb_origin": "discovered", "structure_own_ways": 3, "carriageway": { "stations": 87, "stations_resolved": 87, "width_median_m": 4.0, "width_p10_m": 2.25, "width_min_m": 1.0, "width_max_m": 11.25, "bounded_share": 0.483, "unbounded_share": 0.517, "confidence_median": 0.0, "width_median_bounded_m": 4.25, "window_m": [ 131.0, 156.0 ], "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": 87, "stations_resolved": 87, "width_median_m": 3.25, "width_p10_m": 1.0, "width_min_m": 0.5, "width_max_m": 12.0, "bounded_share": 0.92, "unbounded_share": 0.08, "confidence_median": 1.0, "width_median_bounded_m": 3.0, "window_m": [ 131.0, 156.0 ], "width_at_max25_m": 6.0, "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-Floret", "county": "Puy-de-D\u00f4me", "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)" } }