{ "ocl_version": "0.1.0", "name": "Discovered lane (42.6062, 8.9328)", "slug": "discovered-lane-42-6062-8-9328", "confidence": "B", "reported_claims": [], "ladder": [ { "window_m": 2.0, "max_gradient_pct": 32.02308853054632, "diagnostic": true, "flags": [], "start_distance_m": 709.0, "end_distance_m": 711.0, "start_elevation_m": 178.72585296219412, "end_elevation_m": 179.36631473280505, "min_gradient_pct": -7.175583302282007 }, { "window_m": 3.0, "max_gradient_pct": 31.52317424438138, "diagnostic": true, "flags": [], "start_distance_m": 707.0, "end_distance_m": 710.0, "start_elevation_m": 178.10536992734023, "end_elevation_m": 179.05106515467168, "min_gradient_pct": -6.175306977321308 }, { "window_m": 5.0, "max_gradient_pct": 31.083894144009037, "diagnostic": false, "flags": [], "start_distance_m": 705.0, "end_distance_m": 710.0, "start_elevation_m": 177.49687044747122, "end_elevation_m": 179.05106515467168, "min_gradient_pct": -5.357840466704147 }, { "window_m": 10.0, "max_gradient_pct": 30.16829972898705, "diagnostic": false, "flags": [], "start_distance_m": 705.0, "end_distance_m": 715.0, "start_elevation_m": 177.49687044747122, "end_elevation_m": 180.51370042036993, "min_gradient_pct": -5.148783400721584 }, { "window_m": 20.0, "max_gradient_pct": 29.1248245877766, "diagnostic": false, "flags": [], "start_distance_m": 704.0, "end_distance_m": 724.0, "start_elevation_m": 177.2098555182501, "end_elevation_m": 183.03482043580541, "min_gradient_pct": -3.7560581478807364 }, { "window_m": 25.0, "max_gradient_pct": 28.840780671118296, "diagnostic": false, "flags": [], "start_distance_m": 702.0, "end_distance_m": 727.0, "start_elevation_m": 176.6423886805127, "end_elevation_m": 183.85258384829228, "min_gradient_pct": -2.80330594933082 }, { "window_m": 50.0, "max_gradient_pct": 25.564019562062754, "diagnostic": false, "flags": [ "canopy_or_structure" ], "start_distance_m": 694.0, "end_distance_m": 744.0, "start_elevation_m": 174.57234594872332, "end_elevation_m": 187.3543557297547, "min_gradient_pct": -1.41080726306717 }, { "window_m": 100.0, "max_gradient_pct": 21.108613176633725, "diagnostic": false, "flags": [ "canopy_or_structure" ], "start_distance_m": 694.0, "end_distance_m": 794.0, "start_elevation_m": 174.57234594872332, "end_elevation_m": 195.68095912535705, "min_gradient_pct": 1.2846388259694095 } ], "shape": { "ascent_concentration": 0.482, "concentration_window_frac": 0.25, "longest_pitch_10pct_m": 212.0, "shape_class": "stepped" }, "length_m": 1623.0831906686888, "start_elevation_m": 130.5022476372324, "end_elevation_m": 263.9387772487795, "endpoint_gain_m": 133.43652961154712, "overall_gradient_pct": 8.221176239067145, "accumulated_ascent_m": 135.3901993182214, "window_maxima": { "max_5m": { "gradient_pct": 31.083894144009037, "start_distance_m": 705.0, "end_distance_m": 710.0, "midpoint_distance_m": 707.5, "start_elevation_m": 177.49687044747122, "end_elevation_m": 179.05106515467168, "start_xy": [ 1187059.9699172797, 6185771.879244202 ], "end_xy": [ 1187055.8247856335, 6185769.083196342 ] }, "max_10m": { "gradient_pct": 30.16829972898705, "start_distance_m": 705.0, "end_distance_m": 715.0, "midpoint_distance_m": 710.0, "start_elevation_m": 177.49687044747122, "end_elevation_m": 180.51370042036993, "start_xy": [ 1187059.9699172797, 6185771.879244202 ], "end_xy": [ 1187051.6796539873, 6185766.287148482 ] }, "max_20m": { "gradient_pct": 29.1248245877766, "start_distance_m": 704.0, "end_distance_m": 724.0, "midpoint_distance_m": 714.0, "start_elevation_m": 177.2098555182501, "end_elevation_m": 183.03482043580541, "start_xy": [ 1187060.798943609, 6185772.438453774 ], "end_xy": [ 1187044.5189719447, 6185760.877537926 ] }, "max_25m": { "gradient_pct": 28.840780671118296, "start_distance_m": 702.0, "end_distance_m": 727.0, "midpoint_distance_m": 714.5, "start_elevation_m": 176.6423886805127, "end_elevation_m": 183.85258384829228, "start_xy": [ 1187062.4569962674, 6185773.556872918 ], "end_xy": [ 1187042.33082478, 6185758.825219241 ] }, "max_50m": { "gradient_pct": 25.564019562062754, "start_distance_m": 694.0, "end_distance_m": 744.0, "midpoint_distance_m": 719.0, "start_elevation_m": 174.57234594872332, "end_elevation_m": 187.3543557297547, "start_xy": [ 1187068.566552681, 6185778.660908306 ], "end_xy": [ 1187048.548182054, 6185746.820658735 ] }, "max_100m": { "gradient_pct": 21.108613176633725, "start_distance_m": 694.0, "end_distance_m": 794.0, "midpoint_distance_m": 744.0, "start_elevation_m": 174.57234594872332, "end_elevation_m": 195.68095912535705, "start_xy": [ 1187068.566552681, 6185778.660908306 ], "end_xy": [ 1187044.8230507104, 6185727.654733506 ] } }, "window_minima": { "min_5m": { "gradient_pct": -5.357840466704147, "start_distance_m": 1204.0, "end_distance_m": 1209.0, "midpoint_distance_m": 1206.5, "start_elevation_m": 248.3228478546929, "end_elevation_m": 248.0549558313577, "start_xy": [ 1186954.8755644653, 6185603.196095173 ], "end_xy": [ 1186959.8229527755, 6185603.708851339 ] }, "min_10m": { "gradient_pct": -5.148783400721584, "start_distance_m": 1200.0, "end_distance_m": 1210.0, "midpoint_distance_m": 1205.0, "start_elevation_m": 248.50735820100329, "end_elevation_m": 247.99247986093113, "start_xy": [ 1186950.9399467993, 6185602.481312978 ], "end_xy": [ 1186960.8223905405, 6185603.675322936 ] }, "min_20m": { "gradient_pct": -3.7560581478807364, "start_distance_m": 1199.0, "end_distance_m": 1219.0, "midpoint_distance_m": 1209.0, "start_elevation_m": 248.54443498065655, "end_elevation_m": 247.7932233510804, "start_xy": [ 1186949.9560423829, 6185602.302617429 ], "end_xy": [ 1186969.8173304258, 6185603.373567306 ] }, "min_25m": { "gradient_pct": -2.80330594933082, "start_distance_m": 1196.0, "end_distance_m": 1221.0, "midpoint_distance_m": 1208.5, "start_elevation_m": 248.4997161259097, "end_elevation_m": 247.798889638577, "start_xy": [ 1186947.0043291333, 6185601.766530782 ], "end_xy": [ 1186971.8162059558, 6185603.3065105 ] }, "min_50m": { "gradient_pct": -1.41080726306717, "start_distance_m": 1184.0, "end_distance_m": 1234.0, "midpoint_distance_m": 1209.0, "start_elevation_m": 248.52703592560687, "end_elevation_m": 247.82163229407328, "start_xy": [ 1186935.14477603, 6185600.228783668 ], "end_xy": [ 1186984.8088969013, 6185602.870641257 ] }, "min_100m": { "gradient_pct": 1.2846388259694095, "start_distance_m": 1178.0, "end_distance_m": 1278.0, "midpoint_distance_m": 1228.0, "start_elevation_m": 248.2659421822632, "end_elevation_m": 249.5505810082326, "start_xy": [ 1186929.14489661, 6185600.266822406 ], "end_xy": [ 1187028.6740713709, 6185600.283979548 ] } }, "diagnostic_window_maxima": { "max_2m": { "gradient_pct": 32.02308853054632, "start_distance_m": 709.0, "end_distance_m": 711.0, "midpoint_distance_m": 710.0, "start_elevation_m": 178.72585296219412, "end_elevation_m": 179.36631473280505, "start_xy": [ 1187056.6538119628, 6185769.642405914 ], "end_xy": [ 1187054.9957593044, 6185768.52398677 ] }, "max_3m": { "gradient_pct": 31.52317424438138, "start_distance_m": 707.0, "end_distance_m": 710.0, "midpoint_distance_m": 708.5, "start_elevation_m": 178.10536992734023, "end_elevation_m": 179.05106515467168, "start_xy": [ 1187058.3118646212, 6185770.7608250575 ], "end_xy": [ 1187055.8247856335, 6185769.083196342 ] } }, "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": 0.064, "obstruction_max_height_m": 11.56, "flagged_windows_m": [ 50, 100 ] }, "review": [], "extent": [ "may_start_earlier" ] }, "provenance": { "analysis_version": "0.1.0", "run_manifest": { "manifest_version": "1", "code_git_sha": "33abfff569d4360542e616d0d42c1b94d0a711fa", "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-co2", "road_pbf": "block-batch-fr-co2.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": "sha256:2a717d675f2607cc" }, "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_E1186-N6185_0m5@21LHDCorseUS-2025-04-02.tif", "data/cache/fr/ign-lidarhd_dtm_E1186-N6186_0m5@21LHDCorseUS-2025-04-02.tif", "data/cache/fr/ign-lidarhd_dtm_E1187-N6185_0m5@21LHDCorseUS-2025-04-02.tif", "data/cache/fr/ign-lidarhd_dtm_E1187-N6186_0m5@21LHDCorseUS-2025-04-02.tif" ], "calculated_at": "2026-09-25T00:45:49+00:00", "road_source": "OpenStreetMap (local PBF extract)", "road_attribution": "\u00a9 OpenStreetMap contributors, ODbL", "osm_pbf_path": "data/cache/pbf/block-batch-fr-co2.osm.pbf", "osm_snapshot": "", "run_id": "fr-co2", "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": [ "E1186-N6185", "E1186-N6186", "E1187-N6185", "E1187-N6186" ], "elevation_blocks": [ "21LHDCorseUS@2025-04-02" ], "ign_dalles": [ "LHD_FXX_1186_6186_MNT_O_0M50_LAMB93_IGN78", "LHD_FXX_1186_6187_MNT_O_0M50_LAMB93_IGN78", "LHD_FXX_1187_6186_MNT_O_0M50_LAMB93_IGN78", "LHD_FXX_1187_6187_MNT_O_0M50_LAMB93_IGN78" ], "ign_missions": [ "21LHDCorseUS" ], "ign_editions": [ "2025-04-02" ], "ign_dsm_edition": { "LHD_FXX_1186_6186_MNT_O_0M50_LAMB93_IGN78": "2025-04-02", "LHD_FXX_1186_6187_MNT_O_0M50_LAMB93_IGN78": "2025-04-02", "LHD_FXX_1187_6186_MNT_O_0M50_LAMB93_IGN78": "2025-04-02", "LHD_FXX_1187_6187_MNT_O_0M50_LAMB93_IGN78": "2025-04-02" }, "climb_origin": "discovered", "structure_own_ways": 5, "carriageway": { "stations": 71, "stations_resolved": 71, "width_median_m": 6.0, "width_p10_m": 3.75, "width_min_m": 2.25, "width_max_m": 10.75, "bounded_share": 0.451, "unbounded_share": 0.549, "confidence_median": 0.0, "width_median_bounded_m": 6.12, "window_m": [ 702.0, 727.0 ], "width_at_max25_m": 6.25, "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": 71, "stations_resolved": 71, "width_median_m": 6.75, "width_p10_m": 2.5, "width_min_m": 0.75, "width_max_m": 12.0, "bounded_share": 0.831, "unbounded_share": 0.169, "confidence_median": 1.0, "width_median_bounded_m": 6.25, "window_m": [ 702.0, 727.0 ], "width_at_max25_m": 7.25, "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": "Santa-Reparata-di-Balagna", "county": "Haute-Corse", "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)" } }