{
 "ocl_version": "0.1.0",
 "name": "Discovered lane (43.5132, 5.5025)",
 "slug": "discovered-lane-43-5132-5-5025",
 "confidence": "B",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 32.0626420786283,
   "diagnostic": true,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 544.0,
   "end_distance_m": 546.0,
   "start_elevation_m": 212.35548519885714,
   "end_elevation_m": 212.9967380404297,
   "min_gradient_pct": -3.5282326994035884
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 28.486197036706546,
   "diagnostic": true,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 559.0,
   "end_distance_m": 562.0,
   "start_elevation_m": 215.71394311445889,
   "end_elevation_m": 216.56852902556008,
   "min_gradient_pct": -0.04178216360439061
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 26.622976007599846,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 560.0,
   "end_distance_m": 565.0,
   "start_elevation_m": 215.98913193982116,
   "end_elevation_m": 217.32028074020116,
   "min_gradient_pct": 0.4957037211147508
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 24.630045274178656,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 555.0,
   "end_distance_m": 565.0,
   "start_elevation_m": 214.8572762127833,
   "end_elevation_m": 217.32028074020116,
   "min_gradient_pct": 0.5854379527943365
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 23.686732801378838,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 555.0,
   "end_distance_m": 575.0,
   "start_elevation_m": 214.8572762127833,
   "end_elevation_m": 219.59462277305906,
   "min_gradient_pct": 0.8106889696969688
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 23.60465570613883,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 550.0,
   "end_distance_m": 575.0,
   "start_elevation_m": 213.69345884652435,
   "end_elevation_m": 219.59462277305906,
   "min_gradient_pct": 0.9800913436575911
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 22.306105789106596,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 536.0,
   "end_distance_m": 586.0,
   "start_elevation_m": 210.60629238059647,
   "end_elevation_m": 221.75934527514977,
   "min_gradient_pct": 1.354270161163356
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 19.777362950305132,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 533.0,
   "end_distance_m": 633.0,
   "start_elevation_m": 210.00344667807548,
   "end_elevation_m": 229.7808096283806,
   "min_gradient_pct": 2.7444993490338447
  }
 ],
 "shape": {
  "ascent_concentration": 0.407,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 156.0,
  "shape_class": "sustained"
 },
 "length_m": 682.3562082554513,
 "start_elevation_m": 163.63714887234408,
 "end_elevation_m": 238.7181429274696,
 "endpoint_gain_m": 75.0809940551255,
 "overall_gradient_pct": 11.00319644589761,
 "accumulated_ascent_m": 75.22623988683031,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 26.622976007599846,
   "start_distance_m": 560.0,
   "end_distance_m": 565.0,
   "midpoint_distance_m": 562.5,
   "start_elevation_m": 215.98913193982116,
   "end_elevation_m": 217.32028074020116,
   "start_xy": [
    902517.4294464622,
    6271398.928355701
   ],
   "end_xy": [
    902522.0486405581,
    6271397.014447161
   ]
  },
  "max_10m": {
   "gradient_pct": 24.630045274178656,
   "start_distance_m": 555.0,
   "end_distance_m": 565.0,
   "midpoint_distance_m": 560.0,
   "start_elevation_m": 214.8572762127833,
   "end_elevation_m": 217.32028074020116,
   "start_xy": [
    902512.8102523662,
    6271400.8422642425
   ],
   "end_xy": [
    902522.0486405581,
    6271397.014447161
   ]
  },
  "max_20m": {
   "gradient_pct": 23.686732801378838,
   "start_distance_m": 555.0,
   "end_distance_m": 575.0,
   "midpoint_distance_m": 565.0,
   "start_elevation_m": 214.8572762127833,
   "end_elevation_m": 219.59462277305906,
   "start_xy": [
    902512.8102523662,
    6271400.8422642425
   ],
   "end_xy": [
    902531.28702875,
    6271393.186630079
   ]
  },
  "max_25m": {
   "gradient_pct": 23.60465570613883,
   "start_distance_m": 550.0,
   "end_distance_m": 575.0,
   "midpoint_distance_m": 562.5,
   "start_elevation_m": 213.69345884652435,
   "end_elevation_m": 219.59462277305906,
   "start_xy": [
    902508.4384109644,
    6271403.241525556
   ],
   "end_xy": [
    902531.28702875,
    6271393.186630079
   ]
  },
  "max_50m": {
   "gradient_pct": 22.306105789106596,
   "start_distance_m": 536.0,
   "end_distance_m": 586.0,
   "midpoint_distance_m": 561.0,
   "start_elevation_m": 210.60629238059647,
   "end_elevation_m": 221.75934527514977,
   "start_xy": [
    902496.5019413128,
    6271410.557309332
   ],
   "end_xy": [
    902541.5332592032,
    6271389.201256778
   ]
  },
  "max_100m": {
   "gradient_pct": 19.777362950305132,
   "start_distance_m": 533.0,
   "end_distance_m": 633.0,
   "midpoint_distance_m": 583.0,
   "start_elevation_m": 210.00344667807548,
   "end_elevation_m": 229.7808096283806,
   "start_xy": [
    902494.3032215462,
    6271412.493943308
   ],
   "end_xy": [
    902586.1048701835,
    6271374.474428908
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": 0.4957037211147508,
   "start_distance_m": 144.0,
   "end_distance_m": 149.0,
   "midpoint_distance_m": 146.5,
   "start_elevation_m": 176.07253563042372,
   "end_elevation_m": 176.09732081647945,
   "start_xy": [
    902194.4501705173,
    6271431.6909446055
   ],
   "end_xy": [
    902195.9906894425,
    6271426.934180848
   ]
  },
  "min_10m": {
   "gradient_pct": 0.5854379527943365,
   "start_distance_m": 139.0,
   "end_distance_m": 149.0,
   "midpoint_distance_m": 144.0,
   "start_elevation_m": 176.03877702120002,
   "end_elevation_m": 176.09732081647945,
   "start_xy": [
    902192.9096515921,
    6271436.447708363
   ],
   "end_xy": [
    902195.9906894425,
    6271426.934180848
   ]
  },
  "min_20m": {
   "gradient_pct": 0.8106889696969688,
   "start_distance_m": 139.0,
   "end_distance_m": 159.0,
   "midpoint_distance_m": 149.0,
   "start_elevation_m": 176.03877702120002,
   "end_elevation_m": 176.2009148151394,
   "start_xy": [
    902192.9096515921,
    6271436.447708363
   ],
   "end_xy": [
    902199.071727293,
    6271417.420653334
   ]
  },
  "min_25m": {
   "gradient_pct": 0.9800913436575911,
   "start_distance_m": 134.0,
   "end_distance_m": 159.0,
   "midpoint_distance_m": 146.5,
   "start_elevation_m": 175.95589197922502,
   "end_elevation_m": 176.2009148151394,
   "start_xy": [
    902192.0952147694,
    6271441.364695166
   ],
   "end_xy": [
    902199.071727293,
    6271417.420653334
   ]
  },
  "min_50m": {
   "gradient_pct": 1.354270161163356,
   "start_distance_m": 117.0,
   "end_distance_m": 167.0,
   "midpoint_distance_m": 142.0,
   "start_elevation_m": 175.67711389294283,
   "end_elevation_m": 176.3542489735245,
   "start_xy": [
    902190.0402698405,
    6271458.240038165
   ],
   "end_xy": [
    902201.5365575732,
    6271409.809831322
   ]
  },
  "min_100m": {
   "gradient_pct": 2.7444993490338447,
   "start_distance_m": 102.0,
   "end_distance_m": 202.0,
   "midpoint_distance_m": 152.0,
   "start_elevation_m": 174.7161877245802,
   "end_elevation_m": 177.46068707361405,
   "start_xy": [
    902187.7740530021,
    6271473.062773581
   ],
   "end_xy": [
    902213.4438248386,
    6271377.165894
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 32.0626420786283,
   "start_distance_m": 544.0,
   "end_distance_m": 546.0,
   "midpoint_distance_m": 545.0,
   "start_elevation_m": 212.35548519885714,
   "end_elevation_m": 212.9967380404297,
   "start_xy": [
    902503.3227811138,
    6271406.3768614605
   ],
   "end_xy": [
    902505.027991064,
    6271405.331749492
   ]
  },
  "max_3m": {
   "gradient_pct": 28.486197036706546,
   "start_distance_m": 559.0,
   "end_distance_m": 562.0,
   "midpoint_distance_m": 560.5,
   "start_elevation_m": 215.71394311445889,
   "end_elevation_m": 216.56852902556008,
   "start_xy": [
    902516.505607643,
    6271399.31113741
   ],
   "end_xy": [
    902519.2771241006,
    6271398.162792285
   ]
  }
 },
 "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": {
  "structure_suppression": {
   "masked_fraction": 0.031,
   "windows_resited": [],
   "windows_unresolved": [],
   "minima_resited": [],
   "minima_unresolved": []
  },
  "overhead_obstruction": {
   "obstruction_threshold_m": 2.0,
   "obstructed_fraction": 0.395,
   "obstruction_max_height_m": 19.38,
   "flagged_windows_m": [
    2,
    3,
    5,
    10,
    20,
    25,
    50,
    100
   ]
  },
  "excluded_ranges_m": [
   [
    0.0,
    20.0
   ]
  ],
  "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-pr3",
   "road_pbf": "block-batch-fr-pr3.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_E902-N6271_0m5@21LHD7PQ-2025-03-14.tif"
  ],
  "calculated_at": "2026-09-25T09:15:20+00:00",
  "road_source": "OpenStreetMap (local PBF extract)",
  "road_attribution": "\u00a9 OpenStreetMap contributors, ODbL",
  "osm_pbf_path": "data/cache/pbf/block-batch-fr-pr3.osm.pbf",
  "osm_snapshot": "",
  "run_id": "fr-pr3",
  "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": [
   "E902-N6271"
  ],
  "elevation_blocks": [
   "21LHD7PQ@2025-03-14"
  ],
  "ign_dalles": [
   "LHD_FXX_0902_6272_MNT_O_0M50_LAMB93_IGN69"
  ],
  "ign_missions": [
   "21LHD7PQ"
  ],
  "ign_editions": [
   "2025-03-14"
  ],
  "ign_dsm_edition": {
   "LHD_FXX_0902_6272_MNT_O_0M50_LAMB93_IGN69": "2025-03-14"
  },
  "climb_origin": "discovered",
  "structure_own_ways": 1,
  "structure_mask_ranges_m": [
   [
    0.0,
    15.0
   ]
  ],
  "carriageway": {
   "stations": 32,
   "stations_resolved": 32,
   "width_median_m": 4.38,
   "width_p10_m": 2.55,
   "width_min_m": 1.0,
   "width_max_m": 9.5,
   "bounded_share": 0.281,
   "unbounded_share": 0.719,
   "confidence_median": 0.0,
   "width_median_bounded_m": 4.25,
   "window_m": [
    550.0,
    575.0
   ],
   "width_at_max25_m": 3.88,
   "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": 32,
    "stations_resolved": 32,
    "width_median_m": 2.62,
    "width_p10_m": 0.75,
    "width_min_m": 0.5,
    "width_max_m": 12.0,
    "bounded_share": 0.781,
    "unbounded_share": 0.219,
    "confidence_median": 1.0,
    "width_median_bounded_m": 2.25,
    "window_m": [
     550.0,
     575.0
    ],
    "width_at_max25_m": 2.38,
    "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": "Le Tholonet",
  "county": "Bouches-du-Rh\u00f4ne",
  "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)"
 }
}