{ "ocl_version": "0.1.0", "name": "Discovered lane (43.2906, 6.4652)", "slug": "discovered-lane-43-2906-6-4652", "confidence": "A", "reported_claims": [], "ladder": [ { "window_m": 2.0, "max_gradient_pct": 23.093684175705675, "diagnostic": true, "flags": [], "start_distance_m": 487.0, "end_distance_m": 489.0, "start_elevation_m": 353.21950318913173, "end_elevation_m": 353.68137687264584, "min_gradient_pct": -3.007465107873486 }, { "window_m": 3.0, "max_gradient_pct": 23.17347075387488, "diagnostic": true, "flags": [], "start_distance_m": 155.0, "end_distance_m": 158.0, "start_elevation_m": 312.58887764184107, "end_elevation_m": 313.2840817644573, "min_gradient_pct": -2.19334339229628 }, { "window_m": 5.0, "max_gradient_pct": 22.652521757946715, "diagnostic": false, "flags": [], "start_distance_m": 154.0, "end_distance_m": 159.0, "start_elevation_m": 312.37508700275094, "end_elevation_m": 313.5077130906483, "min_gradient_pct": 0.07779931912523352 }, { "window_m": 10.0, "max_gradient_pct": 22.34518160914604, "diagnostic": false, "flags": [], "start_distance_m": 485.0, "end_distance_m": 495.0, "start_elevation_m": 352.77099020825545, "end_elevation_m": 355.00550836917006, "min_gradient_pct": 1.5674981265237875 }, { "window_m": 20.0, "max_gradient_pct": 21.221632545675675, "diagnostic": false, "flags": [], "start_distance_m": 479.0, "end_distance_m": 499.0, "start_elevation_m": 351.520039336002, "end_elevation_m": 355.76436584513715, "min_gradient_pct": 1.8211606244199174 }, { "window_m": 25.0, "max_gradient_pct": 20.25286961740744, "diagnostic": false, "flags": [], "start_distance_m": 476.0, "end_distance_m": 501.0, "start_elevation_m": 351.03583476586914, "end_elevation_m": 356.099052170221, "min_gradient_pct": 2.044979512450027 }, { "window_m": 50.0, "max_gradient_pct": 17.613100380466904, "diagnostic": false, "flags": [], "start_distance_m": 145.0, "end_distance_m": 195.0, "start_elevation_m": 310.92388917884045, "end_elevation_m": 319.7304393690739, "min_gradient_pct": 4.555266285645871 }, { "window_m": 100.0, "max_gradient_pct": 14.845263042786087, "diagnostic": false, "flags": [], "start_distance_m": 139.0, "end_distance_m": 239.0, "start_elevation_m": 310.16336668927556, "end_elevation_m": 325.00862973206165, "min_gradient_pct": 6.214851149065737 } ], "shape": { "ascent_concentration": 0.325, "concentration_window_frac": 0.25, "longest_pitch_10pct_m": 96.0, "shape_class": "sustained" }, "length_m": 524.962410187243, "start_elevation_m": 300.50492984140925, "end_elevation_m": 359.4171270893397, "endpoint_gain_m": 58.912197247930465, "overall_gradient_pct": 11.222174408052897, "accumulated_ascent_m": 59.00468034120627, "window_maxima": { "max_5m": { "gradient_pct": 22.652521757946715, "start_distance_m": 154.0, "end_distance_m": 159.0, "midpoint_distance_m": 156.5, "start_elevation_m": 312.37508700275094, "end_elevation_m": 313.5077130906483, "start_xy": [ 981202.7454481986, 6249444.969634037 ], "end_xy": [ 981199.320032414, 6249448.611958392 ] }, "max_10m": { "gradient_pct": 22.34518160914604, "start_distance_m": 485.0, "end_distance_m": 495.0, "midpoint_distance_m": 490.0, "start_elevation_m": 352.77099020825545, "end_elevation_m": 355.00550836917006, "start_xy": [ 981313.8771054789, 6249708.834838285 ], "end_xy": [ 981320.3500535439, 6249716.373654071 ] }, "max_20m": { "gradient_pct": 21.221632545675675, "start_distance_m": 479.0, "end_distance_m": 499.0, "midpoint_distance_m": 489.0, "start_elevation_m": 351.520039336002, "end_elevation_m": 355.76436584513715, "start_xy": [ 981310.3434415095, 6249703.985795189 ], "end_xy": [ 981323.404829091, 6249718.955968219 ] }, "max_25m": { "gradient_pct": 20.25286961740744, "start_distance_m": 476.0, "end_distance_m": 501.0, "midpoint_distance_m": 488.5, "start_elevation_m": 351.03583476586914, "end_elevation_m": 356.099052170221, "start_xy": [ 981308.5766095248, 6249701.56127364 ], "end_xy": [ 981324.9322168645, 6249720.247125292 ] }, "max_50m": { "gradient_pct": 17.613100380466904, "start_distance_m": 145.0, "end_distance_m": 195.0, "midpoint_distance_m": 170.0, "start_elevation_m": 310.92388917884045, "end_elevation_m": 319.7304393690739, "start_xy": [ 981210.5731972647, 6249441.340000762 ], "end_xy": [ 981206.4411697068, 6249482.949658131 ] }, "max_100m": { "gradient_pct": 14.845263042786087, "start_distance_m": 139.0, "end_distance_m": 239.0, "midpoint_distance_m": 189.0, "start_elevation_m": 310.16336668927556, "end_elevation_m": 325.00862973206165, "start_xy": [ 981216.419735315, 6249440.125029167 ], "end_xy": [ 981230.5193446198, 6249516.768262078 ] } }, "window_minima": { "min_5m": { "gradient_pct": 0.07779931912523352, "start_distance_m": 32.0, "end_distance_m": 37.0, "midpoint_distance_m": 34.5, "start_elevation_m": 303.51237796642204, "end_elevation_m": 303.5162679323783, "start_xy": [ 981308.7669900837, 6249414.760186096 ], "end_xy": [ 981304.0024555825, 6249413.604058566 ] }, "min_10m": { "gradient_pct": 1.5674981265237875, "start_distance_m": 32.0, "end_distance_m": 42.0, "midpoint_distance_m": 37.0, "start_elevation_m": 303.51237796642204, "end_elevation_m": 303.6691277790744, "start_xy": [ 981308.7669900837, 6249414.760186096 ], "end_xy": [ 981299.2261577373, 6249415.082902335 ] }, "min_20m": { "gradient_pct": 1.8211606244199174, "start_distance_m": 32.0, "end_distance_m": 52.0, "midpoint_distance_m": 42.0, "start_elevation_m": 303.51237796642204, "end_elevation_m": 303.876610091306, "start_xy": [ 981308.7669900837, 6249414.760186096 ], "end_xy": [ 981289.673562047, 6249418.040589874 ] }, "min_25m": { "gradient_pct": 2.044979512450027, "start_distance_m": 32.0, "end_distance_m": 57.0, "midpoint_distance_m": 44.5, "start_elevation_m": 303.51237796642204, "end_elevation_m": 304.02362284453454, "start_xy": [ 981308.7669900837, 6249414.760186096 ], "end_xy": [ 981284.9918825796, 6249419.759002821 ] }, "min_50m": { "gradient_pct": 4.555266285645871, "start_distance_m": 384.0, "end_distance_m": 434.0, "midpoint_distance_m": 409.0, "start_elevation_m": 344.4104893991571, "end_elevation_m": 346.68812254198, "start_xy": [ 981312.8913086357, 6249614.221225893 ], "end_xy": [ 981301.1648941857, 6249661.623022389 ] }, "min_100m": { "gradient_pct": 6.214851149065737, "start_distance_m": 32.0, "end_distance_m": 132.0, "midpoint_distance_m": 82.0, "start_elevation_m": 303.51237796642204, "end_elevation_m": 309.7272291154878, "start_xy": [ 981308.7669900837, 6249414.760186096 ], "end_xy": [ 981222.3801847475, 6249443.795593506 ] } }, "diagnostic_window_maxima": { "max_2m": { "gradient_pct": 23.093684175705675, "start_distance_m": 487.0, "end_distance_m": 489.0, "midpoint_distance_m": 488.0, "start_elevation_m": 353.21950318913173, "end_elevation_m": 353.68137687264584, "start_xy": [ 981315.0549934687, 6249710.451185984 ], "end_xy": [ 981316.2328814585, 6249712.067533682 ] }, "max_3m": { "gradient_pct": 23.17347075387488, "start_distance_m": 155.0, "end_distance_m": 158.0, "midpoint_distance_m": 156.5, "start_elevation_m": 312.58887764184107, "end_elevation_m": 313.2840817644573, "start_xy": [ 981202.0603650417, 6249445.698098908 ], "end_xy": [ 981200.005115571, 6249447.88349352 ] } }, "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": 0.211, "obstruction_max_height_m": 12.09, "flagged_windows_m": [] }, "review": [], "extent": [ "may_start_earlier", "may_continue_beyond_end" ] }, "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-pr7", "road_pbf": "block-batch-fr-pr7.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_E981-N6249_0m5@22LHD6QQ-2025-03-24.tif" ], "calculated_at": "2026-09-25T09:13:18+00:00", "road_source": "OpenStreetMap (local PBF extract)", "road_attribution": "\u00a9 OpenStreetMap contributors, ODbL", "osm_pbf_path": "data/cache/pbf/block-batch-fr-pr7.osm.pbf", "osm_snapshot": "", "run_id": "fr-pr7", "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": [ "E981-N6249" ], "elevation_blocks": [ "22LHD6QQ@2025-03-24" ], "ign_dalles": [ "LHD_FXX_0981_6250_MNT_O_0M50_LAMB93_IGN69" ], "ign_missions": [ "22LHD6QQ" ], "ign_editions": [ "2025-03-24" ], "ign_dsm_edition": { "LHD_FXX_0981_6250_MNT_O_0M50_LAMB93_IGN69": "2025-03-24" }, "climb_origin": "discovered", "structure_own_ways": 2, "carriageway": { "stations": 27, "stations_resolved": 27, "width_median_m": 5.0, "width_p10_m": 3.5, "width_min_m": 2.5, "width_max_m": 10.75, "bounded_share": 0.148, "unbounded_share": 0.852, "confidence_median": 0.0, "width_median_bounded_m": 5.0, "window_m": [ 476.0, 501.0 ], "width_at_max25_m": 7.75, "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": 27, "stations_resolved": 27, "width_median_m": 4.5, "width_p10_m": 0.8, "width_min_m": 0.5, "width_max_m": 12.0, "bounded_share": 0.815, "unbounded_share": 0.185, "confidence_median": 1.0, "width_median_bounded_m": 3.75, "window_m": [ 476.0, 501.0 ], "width_at_max25_m": 7.75, "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 Garde-Freinet", "county": "Var", "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)" } }