{ "ocl_version": "0.1.0", "name": "Discovered lane (43.7157, 5.2951)", "slug": "discovered-lane-43-7157-5-2951", "confidence": "B", "reported_claims": [], "ladder": [ { "window_m": 2.0, "max_gradient_pct": 27.637069320893204, "diagnostic": true, "flags": [], "start_distance_m": 410.0, "end_distance_m": 412.0, "start_elevation_m": 218.52201485510892, "end_elevation_m": 219.07475624152679, "min_gradient_pct": -12.386937851972846 }, { "window_m": 3.0, "max_gradient_pct": 26.756545288106775, "diagnostic": true, "flags": [], "start_distance_m": 409.0, "end_distance_m": 412.0, "start_elevation_m": 218.27205988288358, "end_elevation_m": 219.07475624152679, "min_gradient_pct": -10.173497109217541 }, { "window_m": 5.0, "max_gradient_pct": 26.393337585819268, "diagnostic": false, "flags": [], "start_distance_m": 408.0, "end_distance_m": 413.0, "start_elevation_m": 217.99953890427722, "end_elevation_m": 219.31920578356818, "min_gradient_pct": -6.724783481094505 }, { "window_m": 10.0, "max_gradient_pct": 25.34746502494187, "diagnostic": false, "flags": [], "start_distance_m": 407.0, "end_distance_m": 417.0, "start_elevation_m": 217.77386718065003, "end_elevation_m": 220.30861368314422, "min_gradient_pct": -4.199328042208776 }, { "window_m": 20.0, "max_gradient_pct": 24.28138970084234, "diagnostic": false, "flags": [], "start_distance_m": 402.0, "end_distance_m": 422.0, "start_elevation_m": 216.6025722315868, "end_elevation_m": 221.45885017175527, "min_gradient_pct": -2.361588550868561 }, { "window_m": 25.0, "max_gradient_pct": 23.80116451129561, "diagnostic": false, "flags": [], "start_distance_m": 398.0, "end_distance_m": 423.0, "start_elevation_m": 215.7233329852818, "end_elevation_m": 221.6736241131057, "min_gradient_pct": -2.0632761771292962 }, { "window_m": 50.0, "max_gradient_pct": 22.198257094558986, "diagnostic": false, "flags": [], "start_distance_m": 386.0, "end_distance_m": 436.0, "start_elevation_m": 213.0831402882297, "end_elevation_m": 224.1822688355092, "min_gradient_pct": -1.0623731687746272 }, { "window_m": 100.0, "max_gradient_pct": 17.14128046808034, "diagnostic": false, "flags": [ "canopy_or_structure" ], "start_distance_m": 347.0, "end_distance_m": 447.0, "start_elevation_m": 208.85427365534875, "end_elevation_m": 225.9955541234291, "min_gradient_pct": 1.4002847185911946 } ], "shape": { "ascent_concentration": 0.524, "concentration_window_frac": 0.25, "longest_pitch_10pct_m": 107.0, "shape_class": "stepped" }, "length_m": 680.021711054084, "start_elevation_m": 181.7115811523448, "end_elevation_m": 233.04392569038419, "endpoint_gain_m": 51.33234453803939, "overall_gradient_pct": 7.54863318385386, "accumulated_ascent_m": 52.77314278088116, "window_maxima": { "max_5m": { "gradient_pct": 26.393337585819268, "start_distance_m": 408.0, "end_distance_m": 413.0, "midpoint_distance_m": 410.5, "start_elevation_m": 217.99953890427722, "end_elevation_m": 219.31920578356818, "start_xy": [ 884858.1205858963, 6293361.03814548 ], "end_xy": [ 884857.2669802355, 6293356.200517319 ] }, "max_10m": { "gradient_pct": 25.34746502494187, "start_distance_m": 407.0, "end_distance_m": 417.0, "midpoint_distance_m": 412.0, "start_elevation_m": 217.77386718065003, "end_elevation_m": 220.30861368314422, "start_xy": [ 884858.3710291251, 6293362.006276767 ], "end_xy": [ 884858.3274738861, 6293352.343659373 ] }, "max_20m": { "gradient_pct": 24.28138970084234, "start_distance_m": 402.0, "end_distance_m": 422.0, "midpoint_distance_m": 412.0, "start_elevation_m": 216.6025722315868, "end_elevation_m": 221.45885017175527, "start_xy": [ 884860.2361633842, 6293366.626457554 ], "end_xy": [ 884861.1439030316, 6293348.3764280295 ] }, "max_25m": { "gradient_pct": 23.80116451129561, "start_distance_m": 398.0, "end_distance_m": 423.0, "midpoint_distance_m": 410.5, "start_elevation_m": 215.7233329852818, "end_elevation_m": 221.6736241131057, "start_xy": [ 884861.9352606576, 6293370.247592061 ], "end_xy": [ 884861.8414223532, 6293347.6598620545 ] }, "max_50m": { "gradient_pct": 22.198257094558986, "start_distance_m": 386.0, "end_distance_m": 436.0, "midpoint_distance_m": 411.0, "start_elevation_m": 213.0831402882297, "end_elevation_m": 224.1822688355092, "start_xy": [ 884867.2772766422, 6293380.992956886 ], "end_xy": [ 884871.8807274554, 6293339.445733567 ] }, "max_100m": { "gradient_pct": 17.14128046808034, "start_distance_m": 347.0, "end_distance_m": 447.0, "midpoint_distance_m": 397.0, "start_elevation_m": 208.85427365534875, "end_elevation_m": 225.9955541234291, "start_xy": [ 884899.3740892468, 6293402.171563877 ], "end_xy": [ 884880.6577751506, 6293332.815240843 ] } }, "window_minima": { "min_5m": { "gradient_pct": -6.724783481094505, "start_distance_m": 666.0, "end_distance_m": 671.0, "midpoint_distance_m": 668.5, "start_elevation_m": 233.27334014539042, "end_elevation_m": 232.9371009713357, "start_xy": [ 884909.996985589, 6293137.328747995 ], "end_xy": [ 884907.1727990264, 6293133.202736572 ] }, "min_10m": { "gradient_pct": -4.199328042208776, "start_distance_m": 661.0, "end_distance_m": 671.0, "midpoint_distance_m": 666.0, "start_elevation_m": 233.35703377555657, "end_elevation_m": 232.9371009713357, "start_xy": [ 884912.8211721517, 6293141.454759417 ], "end_xy": [ 884907.1727990264, 6293133.202736572 ] }, "min_20m": { "gradient_pct": -2.361588550868561, "start_distance_m": 656.0, "end_distance_m": 676.0, "midpoint_distance_m": 666.0, "start_elevation_m": 233.41910758010977, "end_elevation_m": 232.94678986993605, "start_xy": [ 884915.6453587144, 6293145.58077084 ], "end_xy": [ 884904.3486124637, 6293129.0767251495 ] }, "min_25m": { "gradient_pct": -2.0632761771292962, "start_distance_m": 646.0, "end_distance_m": 671.0, "midpoint_distance_m": 658.5, "start_elevation_m": 233.45292001561802, "end_elevation_m": 232.9371009713357, "start_xy": [ 884921.2937318397, 6293153.832793686 ], "end_xy": [ 884907.1727990264, 6293133.202736572 ] }, "min_50m": { "gradient_pct": -1.0623731687746272, "start_distance_m": 626.0, "end_distance_m": 676.0, "midpoint_distance_m": 651.0, "start_elevation_m": 233.47797645432337, "end_elevation_m": 232.94678986993605, "start_xy": [ 884931.6344870818, 6293170.860174896 ], "end_xy": [ 884904.3486124637, 6293129.0767251495 ] }, "min_100m": { "gradient_pct": 1.4002847185911946, "start_distance_m": 580.0, "end_distance_m": 680.0, "midpoint_distance_m": 630.0, "start_elevation_m": 231.6466262600813, "end_elevation_m": 233.04691097867249, "start_xy": [ 884928.2738120564, 6293216.167933531 ], "end_xy": [ 884902.0892632134, 6293125.775916012 ] } }, "diagnostic_window_maxima": { "max_2m": { "gradient_pct": 27.637069320893204, "start_distance_m": 410.0, "end_distance_m": 412.0, "midpoint_distance_m": 411.0, "start_elevation_m": 218.52201485510892, "end_elevation_m": 219.07475624152679, "start_xy": [ 884857.6196994388, 6293359.101882906 ], "end_xy": [ 884857.1188129814, 6293357.165620332 ] }, "max_3m": { "gradient_pct": 26.756545288106775, "start_distance_m": 409.0, "end_distance_m": 412.0, "midpoint_distance_m": 410.5, "start_elevation_m": 218.27205988288358, "end_elevation_m": 219.07475624152679, "start_xy": [ 884857.8701426676, 6293360.070014193 ], "end_xy": [ 884857.1188129814, 6293357.165620332 ] } }, "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": 0.314, "obstruction_max_height_m": 18.24, "flagged_windows_m": [ 100 ] }, "review": [], "extent": [] }, "provenance": { "analysis_version": "0.1.0", "run_manifest": { "manifest_version": "1", "code_git_sha": "41205ec4649bb0a4093af76ff34281a5d9a13832", "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-pr2", "road_pbf": "block-batch-fr-pr2.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:ba95a0bf562c86eb" }, "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_E884-N6293_0m5@21LHD7OP-2025-03-14.tif", "data/cache/fr/ign-lidarhd_dtm_E885-N6293_0m5@21LHD7OP-2025-03-14.tif" ], "calculated_at": "2026-09-25T09:35:20+00:00", "road_source": "OpenStreetMap (local PBF extract)", "road_attribution": "\u00a9 OpenStreetMap contributors, ODbL", "osm_pbf_path": "data/cache/pbf/block-batch-fr-pr2.osm.pbf", "osm_snapshot": "", "run_id": "fr-pr2", "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": [ "E884-N6293", "E885-N6293" ], "elevation_blocks": [ "21LHD7OP@2025-03-14" ], "ign_dalles": [ "LHD_FXX_0884_6294_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0885_6294_MNT_O_0M50_LAMB93_IGN69" ], "ign_missions": [ "21LHD7OP" ], "ign_editions": [ "2025-03-14" ], "ign_dsm_edition": { "LHD_FXX_0884_6294_MNT_O_0M50_LAMB93_IGN69": "2025-03-14", "LHD_FXX_0885_6294_MNT_O_0M50_LAMB93_IGN69": "2025-03-14" }, "climb_origin": "discovered", "structure_own_ways": 3, "carriageway": { "stations": 34, "stations_resolved": 34, "width_median_m": 6.12, "width_p10_m": 3.83, "width_min_m": 2.5, "width_max_m": 11.25, "bounded_share": 0.382, "unbounded_share": 0.618, "confidence_median": 0.0, "width_median_bounded_m": 5.0, "window_m": [ 398.0, 423.0 ], "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": 34, "stations_resolved": 34, "width_median_m": 5.38, "width_p10_m": 1.08, "width_min_m": 0.5, "width_max_m": 12.0, "bounded_share": 0.706, "unbounded_share": 0.294, "confidence_median": 1.0, "width_median_bounded_m": 3.38, "window_m": [ 398.0, 423.0 ], "width_at_max25_m": 6.75, "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": "La Roque-d'Anth\u00e9ron", "county": "Bouches-du-Rh\u00f4ne", "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)" } }