{ "ocl_version": "0.1.0", "name": "Discovered lane (45.3918, 4.4307)", "slug": "discovered-lane-45-3918-4-4307", "confidence": "B", "reported_claims": [], "ladder": [ { "window_m": 2.0, "max_gradient_pct": 26.4299638342834, "diagnostic": true, "flags": [], "start_distance_m": 95.0, "end_distance_m": 97.0, "start_elevation_m": 597.8347451664525, "end_elevation_m": 598.3633444431382, "min_gradient_pct": -19.05943212709076 }, { "window_m": 3.0, "max_gradient_pct": 25.218414712594495, "diagnostic": true, "flags": [ "canopy_or_structure" ], "start_distance_m": 135.0, "end_distance_m": 138.0, "start_elevation_m": 605.6754957519436, "end_elevation_m": 606.4320481933214, "min_gradient_pct": -16.653128026397706 }, { "window_m": 5.0, "max_gradient_pct": 24.875752330387968, "diagnostic": false, "flags": [], "start_distance_m": 92.0, "end_distance_m": 97.0, "start_elevation_m": 597.1195568266188, "end_elevation_m": 598.3633444431382, "min_gradient_pct": -15.740183613354475 }, { "window_m": 10.0, "max_gradient_pct": 24.175679080015016, "diagnostic": false, "flags": [], "start_distance_m": 91.0, "end_distance_m": 101.0, "start_elevation_m": 596.8815006068784, "end_elevation_m": 599.2990685148799, "min_gradient_pct": -13.124144755104226 }, { "window_m": 20.0, "max_gradient_pct": 22.639611479643804, "diagnostic": false, "flags": [], "start_distance_m": 88.0, "end_distance_m": 108.0, "start_elevation_m": 596.2587474560618, "end_elevation_m": 600.7866697519905, "min_gradient_pct": -10.672486418829408 }, { "window_m": 25.0, "max_gradient_pct": 22.161766039104805, "diagnostic": false, "flags": [], "start_distance_m": 90.0, "end_distance_m": 115.0, "start_elevation_m": 596.6522285599158, "end_elevation_m": 602.192670069692, "min_gradient_pct": -10.291434724417286 }, { "window_m": 50.0, "max_gradient_pct": 20.346601474519275, "diagnostic": false, "flags": [ "canopy_or_structure" ], "start_distance_m": 88.0, "end_distance_m": 138.0, "start_elevation_m": 596.2587474560618, "end_elevation_m": 606.4320481933214, "min_gradient_pct": -7.79475839779343 }, { "window_m": 100.0, "max_gradient_pct": 18.42980799873476, "diagnostic": false, "flags": [ "no_bench_excluded_min", "canopy_or_structure" ], "start_distance_m": 47.0, "end_distance_m": 147.0, "start_elevation_m": 589.5162507886782, "end_elevation_m": 607.946058787413, "min_gradient_pct": -3.0474602351530393, "suppressed_min_gradient_pct": -4.292213407058284, "suppressed_min_location_m": [ 262.0, 362.0 ] } ], "shape": { "ascent_concentration": 0.301, "concentration_window_frac": 0.25, "longest_pitch_10pct_m": 165.0, "shape_class": "sustained" }, "length_m": 5620.543212607289, "start_elevation_m": 583.8669945067904, "end_elevation_m": 936.1172754922142, "endpoint_gain_m": 352.25028098542373, "overall_gradient_pct": 6.267192825691663, "accumulated_ascent_m": 357.9187554689213, "window_maxima": { "max_5m": { "gradient_pct": 24.875752330387968, "start_distance_m": 92.0, "end_distance_m": 97.0, "midpoint_distance_m": 94.5, "start_elevation_m": 597.1195568266188, "end_elevation_m": 598.3633444431382, "start_xy": [ 809481.2769116273, 6479897.537698573 ], "end_xy": [ 809484.462462857, 6479893.68383514 ] }, "max_10m": { "gradient_pct": 24.175679080015016, "start_distance_m": 91.0, "end_distance_m": 101.0, "midpoint_distance_m": 96.0, "start_elevation_m": 596.8815006068784, "end_elevation_m": 599.2990685148799, "start_xy": [ 809480.6390239216, 6479898.307818992 ], "end_xy": [ 809487.0109038407, 6479890.600744394 ] }, "max_20m": { "gradient_pct": 22.639611479643804, "start_distance_m": 88.0, "end_distance_m": 108.0, "midpoint_distance_m": 98.0, "start_elevation_m": 596.2587474560618, "end_elevation_m": 600.7866697519905, "start_xy": [ 809478.6940726103, 6479900.591930285 ], "end_xy": [ 809491.4644114239, 6479885.200285354 ] }, "max_25m": { "gradient_pct": 22.161766039104805, "start_distance_m": 90.0, "end_distance_m": 115.0, "midpoint_distance_m": 102.5, "start_elevation_m": 596.6522285599158, "end_elevation_m": 602.192670069692, "start_xy": [ 809479.9907068178, 6479899.069189424 ], "end_xy": [ 809495.7909457451, 6479879.6974587375 ] }, "max_50m": { "gradient_pct": 20.346601474519275, "start_distance_m": 88.0, "end_distance_m": 138.0, "midpoint_distance_m": 113.0, "start_elevation_m": 596.2587474560618, "end_elevation_m": 606.4320481933214, "start_xy": [ 809478.6940726103, 6479900.591930285 ], "end_xy": [ 809510.4060966474, 6479861.946386871 ] }, "max_100m": { "gradient_pct": 18.42980799873476, "start_distance_m": 47.0, "end_distance_m": 147.0, "midpoint_distance_m": 97.0, "start_elevation_m": 589.5162507886782, "end_elevation_m": 607.946058787413, "start_xy": [ 809455.0068938512, 6479933.970523251 ], "end_xy": [ 809516.2244273934, 6479855.090533984 ] } }, "window_minima": { "min_5m": { "gradient_pct": -15.740183613354475, "start_distance_m": 352.0, "end_distance_m": 357.0, "midpoint_distance_m": 354.5, "start_elevation_m": 612.5653929870674, "end_elevation_m": 611.7783838063997, "start_xy": [ 809549.0255248818, 6479658.868728984 ], "end_xy": [ 809548.3875877045, 6479653.90959235 ] }, "min_10m": { "gradient_pct": -13.124144755104226, "start_distance_m": 347.0, "end_distance_m": 357.0, "midpoint_distance_m": 352.0, "start_elevation_m": 613.0907982819101, "end_elevation_m": 611.7783838063997, "start_xy": [ 809549.663462059, 6479663.827865618 ], "end_xy": [ 809548.3875877045, 6479653.90959235 ] }, "min_20m": { "gradient_pct": -10.672486418829408, "start_distance_m": 338.0, "end_distance_m": 358.0, "midpoint_distance_m": 348.0, "start_elevation_m": 613.8355555060667, "end_elevation_m": 611.7010582223008, "start_xy": [ 809550.0916966079, 6479672.810381122 ], "end_xy": [ 809548.260000269, 6479652.917765023 ] }, "min_25m": { "gradient_pct": -10.291434724417286, "start_distance_m": 332.0, "end_distance_m": 357.0, "midpoint_distance_m": 344.5, "start_elevation_m": 614.351242487504, "end_elevation_m": 611.7783838063997, "start_xy": [ 809550.2566018519, 6479678.808114548 ], "end_xy": [ 809548.3875877045, 6479653.90959235 ] }, "min_50m": { "gradient_pct": -7.79475839779343, "start_distance_m": 308.0, "end_distance_m": 358.0, "midpoint_distance_m": 333.0, "start_elevation_m": 615.5984374211976, "end_elevation_m": 611.7010582223008, "start_xy": [ 809552.3892338057, 6479702.683371587 ], "end_xy": [ 809548.260000269, 6479652.917765023 ] }, "min_100m": { "gradient_pct": -3.0474602351530393, "start_distance_m": 281.0, "end_distance_m": 381.0, "midpoint_distance_m": 331.0, "start_elevation_m": 615.9765929924391, "end_elevation_m": 612.9291327572861, "start_xy": [ 809553.4218314305, 6479729.514915476 ], "end_xy": [ 809546.6556188844, 6479631.989357668 ] } }, "diagnostic_window_maxima": { "max_2m": { "gradient_pct": 26.4299638342834, "start_distance_m": 95.0, "end_distance_m": 97.0, "midpoint_distance_m": 96.0, "start_elevation_m": 597.8347451664525, "end_elevation_m": 598.3633444431382, "start_xy": [ 809483.1882423651, 6479895.225380514 ], "end_xy": [ 809484.462462857, 6479893.68383514 ] }, "max_3m": { "gradient_pct": 25.218414712594495, "start_distance_m": 135.0, "end_distance_m": 138.0, "midpoint_distance_m": 136.5, "start_elevation_m": 605.6754957519436, "end_elevation_m": 606.4320481933214, "start_xy": [ 809508.4421161596, 6479864.214156842 ], "end_xy": [ 809510.4060966474, 6479861.946386871 ] } }, "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": 0.006, "windows_resited": [], "windows_unresolved": [], "minima_resited": [ 100.0 ], "minima_unresolved": [] }, "overhead_obstruction": { "obstruction_threshold_m": 2.0, "obstructed_fraction": 0.022, "obstruction_max_height_m": 20.22, "flagged_windows_m": [ 3, 50, 100 ] }, "excluded_ranges_m": [ [ 250.0, 280.0 ] ], "review": [], "extent": [ "may_start_earlier", "may_continue_beyond_end" ] }, "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_E809-N6478_0m5@22LHD5NM-2025-02-27.tif", "data/cache/fr/ign-lidarhd_dtm_E809-N6479_0m5@22LHD5NM-2025-02-27.tif", "data/cache/fr/ign-lidarhd_dtm_E810-N6478_0m5@22LHD5NM-2025-02-27.tif", "data/cache/fr/ign-lidarhd_dtm_E810-N6479_0m5@22LHD5NM-2025-02-27.tif", "data/cache/fr/ign-lidarhd_dtm_E811-N6477_0m5@22LHD5NM-2025-02-27.tif", "data/cache/fr/ign-lidarhd_dtm_E811-N6478_0m5@22LHD5NM-2025-02-27.tif", "data/cache/fr/ign-lidarhd_dtm_E812-N6476_0m5@22LHD5NM-2025-02-27.tif", "data/cache/fr/ign-lidarhd_dtm_E812-N6477_0m5@22LHD5NM-2025-02-27.tif", "data/cache/fr/ign-lidarhd_dtm_E812-N6478_0m5@22LHD5NM-2025-02-27.tif" ], "calculated_at": "2026-09-22T15:17:37+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": [ "E809-N6478", "E809-N6479", "E810-N6478", "E810-N6479", "E811-N6477", "E811-N6478", "E812-N6476", "E812-N6477", "E812-N6478" ], "elevation_blocks": [ "22LHD5NM@2025-02-27" ], "ign_dalles": [ "LHD_FXX_0809_6479_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0809_6480_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0810_6479_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0810_6480_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0811_6478_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0811_6479_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0812_6477_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0812_6478_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0812_6479_MNT_O_0M50_LAMB93_IGN69" ], "ign_missions": [ "22LHD5NM" ], "ign_editions": [ "2025-02-27" ], "ign_dsm_edition": { "LHD_FXX_0809_6479_MNT_O_0M50_LAMB93_IGN69": "2025-02-27", "LHD_FXX_0809_6480_MNT_O_0M50_LAMB93_IGN69": "2025-02-27", "LHD_FXX_0810_6479_MNT_O_0M50_LAMB93_IGN69": "2025-02-27", "LHD_FXX_0810_6480_MNT_O_0M50_LAMB93_IGN69": "2025-02-27", "LHD_FXX_0811_6478_MNT_O_0M50_LAMB93_IGN69": "2025-02-27", "LHD_FXX_0811_6479_MNT_O_0M50_LAMB93_IGN69": "2025-02-27", "LHD_FXX_0812_6477_MNT_O_0M50_LAMB93_IGN69": "2025-02-27", "LHD_FXX_0812_6478_MNT_O_0M50_LAMB93_IGN69": "2025-02-27", "LHD_FXX_0812_6479_MNT_O_0M50_LAMB93_IGN69": "2025-02-27" }, "climb_origin": "discovered", "structure_own_ways": 14, "carriageway": { "stations": 230, "stations_resolved": 230, "width_median_m": 9.75, "width_p10_m": 5.95, "width_min_m": 1.25, "width_max_m": 12.0, "bounded_share": 0.113, "unbounded_share": 0.887, "confidence_median": 0.0, "width_median_bounded_m": 4.5, "window_m": [ 90.0, 115.0 ], "width_at_max25_m": 2.62, "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": 230, "stations_resolved": 230, "width_median_m": 11.25, "width_p10_m": 7.45, "width_min_m": 0.5, "width_max_m": 12.0, "bounded_share": 0.222, "unbounded_share": 0.778, "confidence_median": 0.0, "width_median_bounded_m": 8.5, "window_m": [ 90.0, 115.0 ], "width_at_max25_m": 2.88, "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": "Saint-\u00c9tienne", "county": "Loire", "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)" } }