{
 "ocl_version": "0.1.0",
 "name": "Discovered lane (43.3341, 5.6113)",
 "slug": "discovered-lane-43-3341-5-6113",
 "confidence": "B",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 36.20880641558841,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 205.0,
   "end_distance_m": 207.0,
   "start_elevation_m": 212.60897651820457,
   "end_elevation_m": 213.33315264651634,
   "min_gradient_pct": -7.327464108074366
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 36.35386943075313,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 205.0,
   "end_distance_m": 208.0,
   "start_elevation_m": 212.60897651820457,
   "end_elevation_m": 213.69959260112716,
   "min_gradient_pct": -3.8351986362736548
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 34.83655055533745,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 205.0,
   "end_distance_m": 210.0,
   "start_elevation_m": 212.60897651820457,
   "end_elevation_m": 214.35080404597144,
   "min_gradient_pct": -1.59996092389747
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 32.61423373151075,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 200.0,
   "end_distance_m": 210.0,
   "start_elevation_m": 211.08938067282037,
   "end_elevation_m": 214.35080404597144,
   "min_gradient_pct": -0.13707400571547623
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 29.846320246792146,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 197.0,
   "end_distance_m": 217.0,
   "start_elevation_m": 210.2561119036547,
   "end_elevation_m": 216.22537595301313,
   "min_gradient_pct": 0.6197412153630921
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 28.17466561021149,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 197.0,
   "end_distance_m": 222.0,
   "start_elevation_m": 210.2561119036547,
   "end_elevation_m": 217.29977830620757,
   "min_gradient_pct": 0.7546999398612115
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 25.08629080456069,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 197.0,
   "end_distance_m": 247.0,
   "start_elevation_m": 210.2561119036547,
   "end_elevation_m": 222.79925730593504,
   "min_gradient_pct": 2.6729884732271785
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 20.37048183514102,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 149.0,
   "end_distance_m": 249.0,
   "start_elevation_m": 202.87607807074488,
   "end_elevation_m": 223.2465599058859,
   "min_gradient_pct": 4.763159622046601
  }
 ],
 "shape": {
  "ascent_concentration": 0.483,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 118.0,
  "shape_class": "stepped"
 },
 "length_m": 249.91439996566314,
 "start_elevation_m": 193.64452983765665,
 "end_elevation_m": 223.4302745904044,
 "endpoint_gain_m": 29.785744752747746,
 "overall_gradient_pct": 11.918378755621982,
 "accumulated_ascent_m": 30.27196689229018,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 34.83655055533745,
   "start_distance_m": 205.0,
   "end_distance_m": 210.0,
   "midpoint_distance_m": 207.5,
   "start_elevation_m": 212.60897651820457,
   "end_elevation_m": 214.35080404597144,
   "start_xy": [
    911908.4535859349,
    6251932.22753018
   ],
   "end_xy": [
    911910.0750253699,
    6251936.957322369
   ]
  },
  "max_10m": {
   "gradient_pct": 32.61423373151075,
   "start_distance_m": 200.0,
   "end_distance_m": 210.0,
   "midpoint_distance_m": 205.0,
   "start_elevation_m": 211.08938067282037,
   "end_elevation_m": 214.35080404597144,
   "start_xy": [
    911906.8321465001,
    6251927.49773799
   ],
   "end_xy": [
    911910.0750253699,
    6251936.957322369
   ]
  },
  "max_20m": {
   "gradient_pct": 29.846320246792146,
   "start_distance_m": 197.0,
   "end_distance_m": 217.0,
   "midpoint_distance_m": 207.0,
   "start_elevation_m": 210.2561119036547,
   "end_elevation_m": 216.22537595301313,
   "start_xy": [
    911905.8592828392,
    6251924.659862676
   ],
   "end_xy": [
    911910.7284279709,
    6251943.904518848
   ]
  },
  "max_25m": {
   "gradient_pct": 28.17466561021149,
   "start_distance_m": 197.0,
   "end_distance_m": 222.0,
   "midpoint_distance_m": 209.5,
   "start_elevation_m": 210.2561119036547,
   "end_elevation_m": 217.29977830620757,
   "start_xy": [
    911905.8592828392,
    6251924.659862676
   ],
   "end_xy": [
    911911.0637107607,
    6251948.893264729
   ]
  },
  "max_50m": {
   "gradient_pct": 25.08629080456069,
   "start_distance_m": 197.0,
   "end_distance_m": 247.0,
   "midpoint_distance_m": 222.0,
   "start_elevation_m": 210.2561119036547,
   "end_elevation_m": 222.79925730593504,
   "start_xy": [
    911905.8592828392,
    6251924.659862676
   ],
   "end_xy": [
    911907.6357334345,
    6251973.507432893
   ]
  },
  "max_100m": {
   "gradient_pct": 20.37048183514102,
   "start_distance_m": 149.0,
   "end_distance_m": 249.0,
   "midpoint_distance_m": 199.0,
   "start_elevation_m": 202.87607807074488,
   "end_elevation_m": 223.2465599058859,
   "start_xy": [
    911885.081207791,
    6251881.562019131
   ],
   "end_xy": [
    911907.2461277241,
    6251975.469117728
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -1.59996092389747,
   "start_distance_m": 69.0,
   "end_distance_m": 74.0,
   "midpoint_distance_m": 71.5,
   "start_elevation_m": 197.05373501819878,
   "end_elevation_m": 196.9737369720039,
   "start_xy": [
    911844.4192971408,
    6251812.924366951
   ],
   "end_xy": [
    911846.329382721,
    6251817.545143193
   ]
  },
  "min_10m": {
   "gradient_pct": -0.13707400571547623,
   "start_distance_m": 13.0,
   "end_distance_m": 23.0,
   "midpoint_distance_m": 18.0,
   "start_elevation_m": 193.82644329527707,
   "end_elevation_m": 193.81273589470553,
   "start_xy": [
    911868.8230105073,
    6251766.977863318
   ],
   "end_xy": [
    911862.1737878206,
    6251774.446988947
   ]
  },
  "min_20m": {
   "gradient_pct": 0.6197412153630921,
   "start_distance_m": 3.0,
   "end_distance_m": 23.0,
   "midpoint_distance_m": 13.0,
   "start_elevation_m": 193.6887876516329,
   "end_elevation_m": 193.81273589470553,
   "start_xy": [
    911875.4722331939,
    6251759.508737689
   ],
   "end_xy": [
    911862.1737878206,
    6251774.446988947
   ]
  },
  "min_25m": {
   "gradient_pct": 0.7546999398612115,
   "start_distance_m": 9.0,
   "end_distance_m": 34.0,
   "midpoint_distance_m": 21.5,
   "start_elevation_m": 193.77564269655076,
   "end_elevation_m": 193.96431768151606,
   "start_xy": [
    911871.482699582,
    6251763.990213066
   ],
   "end_xy": [
    911854.8596428653,
    6251782.663027139
   ]
  },
  "min_50m": {
   "gradient_pct": 2.6729884732271785,
   "start_distance_m": 0.0,
   "end_distance_m": 50.0,
   "midpoint_distance_m": 25.0,
   "start_elevation_m": 193.64452983765665,
   "end_elevation_m": 194.98102407427024,
   "start_xy": [
    911877.467,
    6251757.268
   ],
   "end_xy": [
    911844.1182393973,
    6251794.52124083
   ]
  },
  "min_100m": {
   "gradient_pct": 4.763159622046601,
   "start_distance_m": 0.0,
   "end_distance_m": 100.0,
   "midpoint_distance_m": 50.0,
   "start_elevation_m": 193.64452983765665,
   "end_elevation_m": 198.40768945970325,
   "start_xy": [
    911877.467,
    6251757.268
   ],
   "end_xy": [
    911859.421763205,
    6251839.887066409
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 36.20880641558841,
   "start_distance_m": 205.0,
   "end_distance_m": 207.0,
   "midpoint_distance_m": 206.0,
   "start_elevation_m": 212.60897651820457,
   "end_elevation_m": 213.33315264651634,
   "start_xy": [
    911908.4535859349,
    6251932.22753018
   ],
   "end_xy": [
    911909.1021617089,
    6251934.119447055
   ]
  },
  "max_3m": {
   "gradient_pct": 36.35386943075313,
   "start_distance_m": 205.0,
   "end_distance_m": 208.0,
   "midpoint_distance_m": 206.5,
   "start_elevation_m": 212.60897651820457,
   "end_elevation_m": 213.69959260112716,
   "start_xy": [
    911908.4535859349,
    6251932.22753018
   ],
   "end_xy": [
    911909.426449596,
    6251935.065405494
   ]
  }
 },
 "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": 0.307,
   "obstruction_max_height_m": 21.51,
   "flagged_windows_m": [
    5,
    20,
    25,
    50,
    100
   ]
  },
  "review": [],
  "extent": [
   "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-pr4",
   "road_pbf": "block-batch-fr-pr4.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_E911-N6251_0m5@21LHD7PQ-2025-03-14.tif"
  ],
  "calculated_at": "2026-09-25T09:31:28+00:00",
  "road_source": "OpenStreetMap (local PBF extract)",
  "road_attribution": "\u00a9 OpenStreetMap contributors, ODbL",
  "osm_pbf_path": "data/cache/pbf/block-batch-fr-pr4.osm.pbf",
  "osm_snapshot": "",
  "run_id": "fr-pr4",
  "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": [
   "E911-N6251"
  ],
  "elevation_blocks": [
   "21LHD7PQ@2025-03-14"
  ],
  "ign_dalles": [
   "LHD_FXX_0911_6252_MNT_O_0M50_LAMB93_IGN69"
  ],
  "ign_missions": [
   "21LHD7PQ"
  ],
  "ign_editions": [
   "2025-03-14"
  ],
  "ign_dsm_edition": {
   "LHD_FXX_0911_6252_MNT_O_0M50_LAMB93_IGN69": "2025-03-14"
  },
  "climb_origin": "discovered",
  "structure_own_ways": 1,
  "carriageway": {
   "stations": 16,
   "stations_resolved": 16,
   "width_median_m": 3.25,
   "width_p10_m": 1.12,
   "width_min_m": 1.0,
   "width_max_m": 12.0,
   "bounded_share": 0.438,
   "unbounded_share": 0.562,
   "confidence_median": 0.0,
   "width_median_bounded_m": 1.5,
   "window_m": [
    197.0,
    222.0
   ],
   "width_at_max25_m": 1.5,
   "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": 16,
    "stations_resolved": 16,
    "width_median_m": 2.12,
    "width_p10_m": 0.75,
    "width_min_m": 0.5,
    "width_max_m": 11.75,
    "bounded_share": 0.938,
    "unbounded_share": 0.062,
    "confidence_median": 1.0,
    "width_median_bounded_m": 2.0,
    "window_m": [
     197.0,
     222.0
    ],
    "width_at_max25_m": 2.0,
    "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": "Roquevaire",
  "county": "Bouches-du-Rh\u00f4ne",
  "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)"
 }
}