{ "ocl_version": "0.1.0", "name": "Discovered lane (42.4767, 2.7232)", "slug": "discovered-lane-42-4767-2-7232", "confidence": "A", "reported_claims": [], "ladder": [ { "window_m": 2.0, "max_gradient_pct": 27.071717359322633, "diagnostic": true, "flags": [], "start_distance_m": 269.0, "end_distance_m": 271.0, "start_elevation_m": 271.1146619777471, "end_elevation_m": 271.65609632493357, "min_gradient_pct": -10.73911118051143 }, { "window_m": 3.0, "max_gradient_pct": 24.153273028239635, "diagnostic": true, "flags": [], "start_distance_m": 268.0, "end_distance_m": 271.0, "start_elevation_m": 270.9314981340864, "end_elevation_m": 271.65609632493357, "min_gradient_pct": -10.062423218337813 }, { "window_m": 5.0, "max_gradient_pct": 22.968779803427424, "diagnostic": false, "flags": [], "start_distance_m": 483.0, "end_distance_m": 488.0, "start_elevation_m": 303.6033338045622, "end_elevation_m": 304.7517727947336, "min_gradient_pct": -4.625846342664772 }, { "window_m": 10.0, "max_gradient_pct": 21.545245904413264, "diagnostic": false, "flags": [], "start_distance_m": 478.0, "end_distance_m": 488.0, "start_elevation_m": 302.59724820429227, "end_elevation_m": 304.7517727947336, "min_gradient_pct": -0.6393116340234428 }, { "window_m": 20.0, "max_gradient_pct": 20.525155096683534, "diagnostic": false, "flags": [], "start_distance_m": 471.0, "end_distance_m": 491.0, "start_elevation_m": 301.16328198677036, "end_elevation_m": 305.26831300610706, "min_gradient_pct": 1.4505684398338303 }, { "window_m": 25.0, "max_gradient_pct": 20.100807011876668, "diagnostic": false, "flags": [], "start_distance_m": 475.0, "end_distance_m": 500.0, "start_elevation_m": 301.957307463927, "end_elevation_m": 306.9825092168962, "min_gradient_pct": 2.0301545439751862 }, { "window_m": 50.0, "max_gradient_pct": 19.10451902717398, "diagnostic": false, "flags": [], "start_distance_m": 468.0, "end_distance_m": 518.0, "start_elevation_m": 300.69145818897806, "end_elevation_m": 310.24371770256505, "min_gradient_pct": 6.902866545274094 }, { "window_m": 100.0, "max_gradient_pct": 16.684344955135487, "diagnostic": false, "flags": [], "start_distance_m": 422.0, "end_distance_m": 522.0, "start_elevation_m": 294.07786514694556, "end_elevation_m": 310.76221010208104, "min_gradient_pct": 9.697746263376843 } ], "shape": { "ascent_concentration": 0.287, "concentration_window_frac": 0.25, "longest_pitch_10pct_m": 426.0, "shape_class": "sustained" }, "length_m": 523.1560406843244, "start_elevation_m": 237.5995929296913, "end_elevation_m": 310.8471942810178, "endpoint_gain_m": 73.24760135132647, "overall_gradient_pct": 14.001100179501613, "accumulated_ascent_m": 73.6122088987699, "window_maxima": { "max_5m": { "gradient_pct": 22.968779803427424, "start_distance_m": 483.0, "end_distance_m": 488.0, "midpoint_distance_m": 485.5, "start_elevation_m": 303.6033338045622, "end_elevation_m": 304.7517727947336, "start_xy": [ 677318.6635895038, 6152817.592870113 ], "end_xy": [ 677322.3097408046, 6152814.17152817 ] }, "max_10m": { "gradient_pct": 21.545245904413264, "start_distance_m": 478.0, "end_distance_m": 488.0, "midpoint_distance_m": 483.0, "start_elevation_m": 302.59724820429227, "end_elevation_m": 304.7517727947336, "start_xy": [ 677315.0174382032, 6152821.014212056 ], "end_xy": [ 677322.3097408046, 6152814.17152817 ] }, "max_20m": { "gradient_pct": 20.525155096683534, "start_distance_m": 471.0, "end_distance_m": 491.0, "midpoint_distance_m": 481.0, "start_elevation_m": 301.16328198677036, "end_elevation_m": 305.26831300610706, "start_xy": [ 677309.9128263823, 6152825.8040907765 ], "end_xy": [ 677324.497431585, 6152812.118723004 ] }, "max_25m": { "gradient_pct": 20.100807011876668, "start_distance_m": 475.0, "end_distance_m": 500.0, "midpoint_distance_m": 487.5, "start_elevation_m": 301.957307463927, "end_elevation_m": 306.9825092168962, "start_xy": [ 677312.8297474228, 6152823.067017223 ], "end_xy": [ 677331.0605039262, 6152805.960307506 ] }, "max_50m": { "gradient_pct": 19.10451902717398, "start_distance_m": 468.0, "end_distance_m": 518.0, "midpoint_distance_m": 493.0, "start_elevation_m": 300.69145818897806, "end_elevation_m": 310.24371770256505, "start_xy": [ 677307.7251356018, 6152827.856895943 ], "end_xy": [ 677344.1866486087, 6152793.64347651 ] }, "max_100m": { "gradient_pct": 16.684344955135487, "start_distance_m": 422.0, "end_distance_m": 522.0, "midpoint_distance_m": 472.0, "start_elevation_m": 294.07786514694556, "end_elevation_m": 310.76221010208104, "start_xy": [ 677282.5380150396, 6152863.268342793 ], "end_xy": [ 677347.1059950448, 6152790.908990948 ] } }, "window_minima": { "min_5m": { "gradient_pct": -4.625846342664772, "start_distance_m": 0.0, "end_distance_m": 5.0, "midpoint_distance_m": 2.5, "start_elevation_m": 237.5995929296913, "end_elevation_m": 237.36830061255807, "start_xy": [ 677213.49, 6153175.493 ], "end_xy": [ 677209.6060068267, 6153172.344254689 ] }, "min_10m": { "gradient_pct": -0.6393116340234428, "start_distance_m": 0.0, "end_distance_m": 10.0, "midpoint_distance_m": 5.0, "start_elevation_m": 237.5995929296913, "end_elevation_m": 237.53566176628897, "start_xy": [ 677213.49, 6153175.493 ], "end_xy": [ 677207.1734700087, 6153168.133487041 ] }, "min_20m": { "gradient_pct": 1.4505684398338303, "start_distance_m": 0.0, "end_distance_m": 20.0, "midpoint_distance_m": 10.0, "start_elevation_m": 237.5995929296913, "end_elevation_m": 237.88970661765808, "start_xy": [ 677213.49, 6153175.493 ], "end_xy": [ 677204.6353962144, 6153158.485814455 ] }, "min_25m": { "gradient_pct": 2.0301545439751862, "start_distance_m": 0.0, "end_distance_m": 25.0, "midpoint_distance_m": 12.5, "start_elevation_m": 237.5995929296913, "end_elevation_m": 238.1071315656851, "start_xy": [ 677213.49, 6153175.493 ], "end_xy": [ 677203.6025429195, 6153153.594505311 ] }, "min_50m": { "gradient_pct": 6.902866545274094, "start_distance_m": 0.0, "end_distance_m": 50.0, "midpoint_distance_m": 25.0, "start_elevation_m": 237.5995929296913, "end_elevation_m": 241.05102620232836, "start_xy": [ 677213.49, 6153175.493 ], "end_xy": [ 677202.7931745722, 6153128.9159644805 ] }, "min_100m": { "gradient_pct": 9.697746263376843, "start_distance_m": 0.0, "end_distance_m": 100.0, "midpoint_distance_m": 50.0, "start_elevation_m": 237.5995929296913, "end_elevation_m": 247.29733919306815, "start_xy": [ 677213.49, 6153175.493 ], "end_xy": [ 677243.2571098822, 6153103.31843629 ] } }, "diagnostic_window_maxima": { "max_2m": { "gradient_pct": 27.071717359322633, "start_distance_m": 269.0, "end_distance_m": 271.0, "midpoint_distance_m": 270.0, "start_elevation_m": 271.1146619777471, "end_elevation_m": 271.65609632493357, "start_xy": [ 677246.4805860961, 6153008.370739934 ], "end_xy": [ 677247.5904025569, 6153006.7069168 ] }, "max_3m": { "gradient_pct": 24.153273028239635, "start_distance_m": 268.0, "end_distance_m": 271.0, "midpoint_distance_m": 269.5, "start_elevation_m": 270.9314981340864, "end_elevation_m": 271.65609632493357, "start_xy": [ 677245.9256778656, 6153009.202651502 ], "end_xy": [ 677247.5904025569, 6153006.7069168 ] } }, "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": 0.124, "obstruction_max_height_m": 9.41, "flagged_windows_m": [] }, "review": [], "extent": [ "may_continue_beyond_end" ] }, "provenance": { "analysis_version": "0.1.0", "run_manifest": { "manifest_version": "1", "code_git_sha": "06fa4c370391597f015858e97dcf01ca2f5b3640", "code_git_dirty": "false", "analysis_version": "0.1.0", "analysis_config_digest": "sha256:0048c2bbb24ab95e", "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-pyr4", "road_pbf": "block-batch-fr-pyr4.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:c54ac68b3f57b41b" }, "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_E677-N6152_0m5@21LHD3KS-2025-05-20.tif", "data/cache/fr/ign-lidarhd_dtm_E677-N6153_0m5@21LHD3KS-2025-05-20.tif" ], "calculated_at": "2026-09-20T07:55:23+00:00", "road_source": "OpenStreetMap (local PBF extract)", "road_attribution": "\u00a9 OpenStreetMap contributors, ODbL", "osm_pbf_path": "data/cache/pbf/block-batch-fr-pyr4.osm.pbf", "osm_snapshot": "", "run_id": "fr-pyr4", "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": [ "E677-N6152", "E677-N6153" ], "elevation_blocks": [ "21LHD3KS@2025-05-20" ], "ign_dalles": [ "LHD_FXX_0677_6153_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0677_6154_MNT_O_0M50_LAMB93_IGN69" ], "ign_missions": [ "21LHD3KS" ], "ign_editions": [ "2025-05-20" ], "ign_dsm_edition": { "LHD_FXX_0677_6153_MNT_O_0M50_LAMB93_IGN69": "2025-05-20", "LHD_FXX_0677_6154_MNT_O_0M50_LAMB93_IGN69": "2025-05-20" }, "climb_origin": "discovered", "structure_own_ways": 1, "carriageway": { "stations": 25, "stations_resolved": 25, "width_median_m": 4.25, "width_p10_m": 2.6, "width_min_m": 2.25, "width_max_m": 7.0, "bounded_share": 0.56, "unbounded_share": 0.44, "confidence_median": 0.519, "width_median_bounded_m": 4.5, "window_m": [ 475.0, 500.0 ], "width_at_max25_m": 5.38, "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": 25, "stations_resolved": 25, "width_median_m": 4.5, "width_p10_m": 1.25, "width_min_m": 0.5, "width_max_m": 9.5, "bounded_share": 0.84, "unbounded_share": 0.16, "confidence_median": 1.0, "width_median_bounded_m": 3.75, "window_m": [ 475.0, 500.0 ], "width_at_max25_m": 5.38, "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": "Reyn\u00e8s", "county": "Pyr\u00e9n\u00e9es-Orientales", "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)" } }