{ "ocl_version": "0.1.0", "name": "Discovered lane (45.6919, 3.1150)", "slug": "discovered-lane-45-6919-3-1150", "confidence": "B", "reported_claims": [], "ladder": [ { "window_m": 2.0, "max_gradient_pct": 22.938086072559827, "diagnostic": true, "flags": [], "start_distance_m": 14.0, "end_distance_m": 16.0, "start_elevation_m": 466.8416576436315, "end_elevation_m": 467.3004193650827, "min_gradient_pct": -9.274509000121611 }, { "window_m": 3.0, "max_gradient_pct": 22.252891482759196, "diagnostic": true, "flags": [], "start_distance_m": 18.0, "end_distance_m": 21.0, "start_elevation_m": 467.6791831516142, "end_elevation_m": 468.346769896097, "min_gradient_pct": -5.443543988616284 }, { "window_m": 5.0, "max_gradient_pct": 22.095500279863245, "diagnostic": false, "flags": [], "start_distance_m": 10.0, "end_distance_m": 15.0, "start_elevation_m": 465.97367934254424, "end_elevation_m": 467.0784543565374, "min_gradient_pct": -1.0892352424730234 }, { "window_m": 10.0, "max_gradient_pct": 21.598196772506526, "diagnostic": false, "flags": [], "start_distance_m": 6.0, "end_distance_m": 16.0, "start_elevation_m": 465.14059968783204, "end_elevation_m": 467.3004193650827, "min_gradient_pct": 0.8586998570910964 }, { "window_m": 20.0, "max_gradient_pct": 21.004648795443472, "diagnostic": false, "flags": [], "start_distance_m": 6.0, "end_distance_m": 26.0, "start_elevation_m": 465.14059968783204, "end_elevation_m": 469.34152944692073, "min_gradient_pct": 1.3186544121705879 }, { "window_m": 25.0, "max_gradient_pct": 20.02589697321514, "diagnostic": false, "flags": [ "canopy_or_structure" ], "start_distance_m": 4.0, "end_distance_m": 29.0, "start_elevation_m": 464.8049096521837, "end_elevation_m": 469.8113838954875, "min_gradient_pct": 1.8397700242599058 }, { "window_m": 50.0, "max_gradient_pct": 15.623376444356154, "diagnostic": false, "flags": [ "canopy_or_structure" ], "start_distance_m": 4.0, "end_distance_m": 54.0, "start_elevation_m": 464.8049096521837, "end_elevation_m": 472.6165978743618, "min_gradient_pct": 3.327075235430243 }, { "window_m": 100.0, "max_gradient_pct": 14.294731687200965, "diagnostic": false, "flags": [ "canopy_or_structure" ], "start_distance_m": 4.0, "end_distance_m": 104.0, "start_elevation_m": 464.8049096521837, "end_elevation_m": 479.0996413393847, "min_gradient_pct": 5.80870162389607 } ], "shape": { "ascent_concentration": 0.294, "concentration_window_frac": 0.25, "longest_pitch_10pct_m": 95.0, "shape_class": "sustained" }, "length_m": 730.5875535128561, "start_elevation_m": 464.42628503318343, "end_elevation_m": 538.4244929824097, "endpoint_gain_m": 73.99820794922624, "overall_gradient_pct": 10.128588639845217, "accumulated_ascent_m": 74.29538374614248, "window_maxima": { "max_5m": { "gradient_pct": 22.095500279863245, "start_distance_m": 10.0, "end_distance_m": 15.0, "midpoint_distance_m": 12.5, "start_elevation_m": 465.97367934254424, "end_elevation_m": 467.0784543565374, "start_xy": [ 708744.40899682, 6510517.521072255 ], "end_xy": [ 708746.26949523, 6510512.880108383 ] }, "max_10m": { "gradient_pct": 21.598196772506526, "start_distance_m": 6.0, "end_distance_m": 16.0, "midpoint_distance_m": 11.0, "start_elevation_m": 465.14059968783204, "end_elevation_m": 467.3004193650827, "start_xy": [ 708742.920598092, 6510521.233843354 ], "end_xy": [ 708746.641594912, 6510511.951915608 ] }, "max_20m": { "gradient_pct": 21.004648795443472, "start_distance_m": 6.0, "end_distance_m": 26.0, "midpoint_distance_m": 16.0, "start_elevation_m": 465.14059968783204, "end_elevation_m": 469.34152944692073, "start_xy": [ 708742.920598092, 6510521.233843354 ], "end_xy": [ 708750.3638125376, 6510502.670477377 ] }, "max_25m": { "gradient_pct": 20.02589697321514, "start_distance_m": 4.0, "end_distance_m": 29.0, "midpoint_distance_m": 16.5, "start_elevation_m": 464.8049096521837, "end_elevation_m": 469.8113838954875, "start_xy": [ 708742.176398728, 6510523.090228902 ], "end_xy": [ 708751.4805427636, 6510499.8860719465 ] }, "max_50m": { "gradient_pct": 15.623376444356154, "start_distance_m": 4.0, "end_distance_m": 54.0, "midpoint_distance_m": 29.0, "start_elevation_m": 464.8049096521837, "end_elevation_m": 472.6165978743618, "start_xy": [ 708742.176398728, 6510523.090228902 ], "end_xy": [ 708760.7866279805, 6510476.682693358 ] }, "max_100m": { "gradient_pct": 14.294731687200965, "start_distance_m": 4.0, "end_distance_m": 104.0, "midpoint_distance_m": 54.0, "start_elevation_m": 464.8049096521837, "end_elevation_m": 479.0996413393847, "start_xy": [ 708742.176398728, 6510523.090228902 ], "end_xy": [ 708782.7143503248, 6510431.760011872 ] } }, "window_minima": { "min_5m": { "gradient_pct": -1.0892352424730234, "start_distance_m": 334.0, "end_distance_m": 339.0, "midpoint_distance_m": 336.5, "start_elevation_m": 502.2527466890449, "end_elevation_m": 502.19828492692125, "start_xy": [ 708929.3484192127, 6510272.333515789 ], "end_xy": [ 708934.2421666664, 6510271.308217852 ] }, "min_10m": { "gradient_pct": 0.8586998570910964, "start_distance_m": 329.0, "end_distance_m": 339.0, "midpoint_distance_m": 334.0, "start_elevation_m": 502.11241494121214, "end_elevation_m": 502.19828492692125, "start_xy": [ 708924.454671759, 6510273.358813726 ], "end_xy": [ 708934.2421666664, 6510271.308217852 ] }, "min_20m": { "gradient_pct": 1.3186544121705879, "start_distance_m": 319.0, "end_distance_m": 339.0, "midpoint_distance_m": 329.0, "start_elevation_m": 501.93455404448713, "end_elevation_m": 502.19828492692125, "start_xy": [ 708914.6671768517, 6510275.4094096 ], "end_xy": [ 708934.2421666664, 6510271.308217852 ] }, "min_25m": { "gradient_pct": 1.8397700242599058, "start_distance_m": 314.0, "end_distance_m": 339.0, "midpoint_distance_m": 326.5, "start_elevation_m": 501.73834242085627, "end_elevation_m": 502.19828492692125, "start_xy": [ 708909.7734293981, 6510276.434707537 ], "end_xy": [ 708934.2421666664, 6510271.308217852 ] }, "min_50m": { "gradient_pct": 3.327075235430243, "start_distance_m": 309.0, "end_distance_m": 359.0, "midpoint_distance_m": 334.0, "start_elevation_m": 501.492527151139, "end_elevation_m": 503.1560647688541, "start_xy": [ 708904.8796819444, 6510277.460005474 ], "end_xy": [ 708953.7697287349, 6510267.049418091 ] }, "min_100m": { "gradient_pct": 5.80870162389607, "start_distance_m": 288.0, "end_distance_m": 388.0, "midpoint_distance_m": 338.0, "start_elevation_m": 499.7900046590122, "end_elevation_m": 505.59870628290827, "start_xy": [ 708884.7058367572, 6510283.022705371 ], "end_xy": [ 708977.8824052538, 6510251.929397143 ] } }, "diagnostic_window_maxima": { "max_2m": { "gradient_pct": 22.938086072559827, "start_distance_m": 14.0, "end_distance_m": 16.0, "midpoint_distance_m": 15.0, "start_elevation_m": 466.8416576436315, "end_elevation_m": 467.3004193650827, "start_xy": [ 708745.8973955481, 6510513.808301157 ], "end_xy": [ 708746.641594912, 6510511.951915608 ] }, "max_3m": { "gradient_pct": 22.252891482759196, "start_distance_m": 18.0, "end_distance_m": 21.0, "midpoint_distance_m": 19.5, "start_elevation_m": 467.6791831516142, "end_elevation_m": 468.346769896097, "start_xy": [ 708747.3858652682, 6510510.095558525 ], "end_xy": [ 708748.5025954943, 6510507.311153094 ] } }, "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": 0.214, "obstruction_max_height_m": 14.89, "flagged_windows_m": [ 25, 50, 100 ] }, "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_E708-N6509_0m5@22LHD4LL-2025-07-24.tif", "data/cache/fr/ign-lidarhd_dtm_E708-N6510_0m5@22LHD4LL-2025-07-24.tif", "data/cache/fr/ign-lidarhd_dtm_E709-N6509_0m5@22LHD4LL-2025-07-24.tif", "data/cache/fr/ign-lidarhd_dtm_E709-N6510_0m5@22LHD4LL-2025-07-24.tif" ], "calculated_at": "2026-09-22T17:42:46+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": [ "E708-N6509", "E708-N6510", "E709-N6509", "E709-N6510" ], "elevation_blocks": [ "22LHD4LL@2025-07-24" ], "ign_dalles": [ "LHD_FXX_0708_6510_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0708_6511_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0709_6510_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0709_6511_MNT_O_0M50_LAMB93_IGN69" ], "ign_missions": [ "22LHD4LL" ], "ign_editions": [ "2025-07-24" ], "ign_dsm_edition": { "LHD_FXX_0708_6510_MNT_O_0M50_LAMB93_IGN69": "2025-07-24", "LHD_FXX_0708_6511_MNT_O_0M50_LAMB93_IGN69": "2025-07-24", "LHD_FXX_0709_6510_MNT_O_0M50_LAMB93_IGN69": "2025-07-24", "LHD_FXX_0709_6511_MNT_O_0M50_LAMB93_IGN69": "2025-07-24" }, "climb_origin": "discovered", "structure_own_ways": 1, "carriageway": { "stations": 36, "stations_resolved": 36, "width_median_m": 4.25, "width_p10_m": 2.5, "width_min_m": 2.25, "width_max_m": 11.75, "bounded_share": 0.278, "unbounded_share": 0.722, "confidence_median": 0.0, "width_median_bounded_m": 4.0, "window_m": [ 4.0, 29.0 ], "width_at_max25_m": 4.25, "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": 36, "stations_resolved": 36, "width_median_m": 3.5, "width_p10_m": 1.25, "width_min_m": 0.5, "width_max_m": 12.0, "bounded_share": 0.917, "unbounded_share": 0.083, "confidence_median": 1.0, "width_median_bounded_m": 3.5, "window_m": [ 4.0, 29.0 ], "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": "Le Crest", "county": "Puy-de-D\u00f4me", "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)" } }