{
 "ocl_version": "0.1.0",
 "name": "Discovered lane (43.4225, 6.4339)",
 "slug": "discovered-lane-43-4225-6-4339",
 "confidence": "A",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 26.620091400652512,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 34.0,
   "end_distance_m": 36.0,
   "start_elevation_m": 92.66028162893062,
   "end_elevation_m": 93.19268345694367,
   "min_gradient_pct": 3.34412561347861
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 25.96312633343416,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 28.0,
   "end_distance_m": 31.0,
   "start_elevation_m": 91.19398831947021,
   "end_elevation_m": 91.97288210947323,
   "min_gradient_pct": 3.422873145782527
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 25.520701129863994,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 27.0,
   "end_distance_m": 32.0,
   "start_elevation_m": 90.94499264190817,
   "end_elevation_m": 92.22102769840137,
   "min_gradient_pct": 3.785152874454525
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 24.844817517256814,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 26.0,
   "end_distance_m": 36.0,
   "start_elevation_m": 90.70820170521799,
   "end_elevation_m": 93.19268345694367,
   "min_gradient_pct": 4.304067903341462
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 24.50007625770553,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 26.0,
   "end_distance_m": 46.0,
   "start_elevation_m": 90.70820170521799,
   "end_elevation_m": 95.6082169567591,
   "min_gradient_pct": 4.570750160404629
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 24.211820344982243,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 23.0,
   "end_distance_m": 48.0,
   "start_elevation_m": 90.02597982210095,
   "end_elevation_m": 96.07893490834651,
   "min_gradient_pct": 4.559866825341487
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 23.34560238905965,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 13.0,
   "end_distance_m": 63.0,
   "start_elevation_m": 87.76330213778941,
   "end_elevation_m": 99.43610333231923,
   "min_gradient_pct": 6.199563303680662
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 18.61015831640293,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 0.0,
   "end_distance_m": 100.0,
   "start_elevation_m": 85.14562427195825,
   "end_elevation_m": 103.75578258836119,
   "min_gradient_pct": 10.98630674750561
  }
 ],
 "shape": {
  "ascent_concentration": 0.384,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 94.0,
  "shape_class": "sustained"
 },
 "length_m": 214.89943877707637,
 "start_elevation_m": 85.14562427195825,
 "end_elevation_m": 117.99355636184345,
 "endpoint_gain_m": 32.84793208988519,
 "overall_gradient_pct": 15.285257270476002,
 "accumulated_ascent_m": 32.85746794365984,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 25.520701129863994,
   "start_distance_m": 27.0,
   "end_distance_m": 32.0,
   "midpoint_distance_m": 29.5,
   "start_elevation_m": 90.94499264190817,
   "end_elevation_m": 92.22102769840137,
   "start_xy": [
    978032.1268623899,
    6264247.607080079
   ],
   "end_xy": [
    978034.6264665362,
    6264243.276724538
   ]
  },
  "max_10m": {
   "gradient_pct": 24.844817517256814,
   "start_distance_m": 26.0,
   "end_distance_m": 36.0,
   "midpoint_distance_m": 31.0,
   "start_elevation_m": 90.70820170521799,
   "end_elevation_m": 93.19268345694367,
   "start_xy": [
    978031.6269415607,
    6264248.473151187
   ],
   "end_xy": [
    978036.6261498532,
    6264239.812440105
   ]
  },
  "max_20m": {
   "gradient_pct": 24.50007625770553,
   "start_distance_m": 26.0,
   "end_distance_m": 46.0,
   "midpoint_distance_m": 36.0,
   "start_elevation_m": 90.70820170521799,
   "end_elevation_m": 95.6082169567591,
   "start_xy": [
    978031.6269415607,
    6264248.473151187
   ],
   "end_xy": [
    978041.6253581458,
    6264231.151729023
   ]
  },
  "max_25m": {
   "gradient_pct": 24.211820344982243,
   "start_distance_m": 23.0,
   "end_distance_m": 48.0,
   "midpoint_distance_m": 35.5,
   "start_elevation_m": 90.02597982210095,
   "end_elevation_m": 96.07893490834651,
   "start_xy": [
    978030.1271790728,
    6264251.071364512
   ],
   "end_xy": [
    978042.6251998043,
    6264229.419586807
   ]
  },
  "max_50m": {
   "gradient_pct": 23.34560238905965,
   "start_distance_m": 13.0,
   "end_distance_m": 63.0,
   "midpoint_distance_m": 38.0,
   "start_elevation_m": 87.76330213778941,
   "end_elevation_m": 99.43610333231923,
   "start_xy": [
    978025.1279707802,
    6264259.732075593
   ],
   "end_xy": [
    978050.7971565742,
    6264216.903659526
   ]
  },
  "max_100m": {
   "gradient_pct": 18.61015831640293,
   "start_distance_m": 0.0,
   "end_distance_m": 100.0,
   "midpoint_distance_m": 50.0,
   "start_elevation_m": 85.14562427195825,
   "end_elevation_m": 103.75578258836119,
   "start_xy": [
    978018.629,
    6264270.991
   ],
   "end_xy": [
    978084.8931886327,
    6264210.406300162
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": 3.785152874454525,
   "start_distance_m": 113.0,
   "end_distance_m": 118.0,
   "midpoint_distance_m": 115.5,
   "start_elevation_m": 104.4013739249497,
   "end_elevation_m": 104.59063156867242,
   "start_xy": [
    978097.6620333534,
    6264212.84691576
   ],
   "end_xy": [
    978102.5731274767,
    6264213.785614067
   ]
  },
  "min_10m": {
   "gradient_pct": 4.304067903341462,
   "start_distance_m": 108.0,
   "end_distance_m": 118.0,
   "midpoint_distance_m": 113.0,
   "start_elevation_m": 104.16022477833828,
   "end_elevation_m": 104.59063156867242,
   "start_xy": [
    978092.7509392301,
    6264211.908217453
   ],
   "end_xy": [
    978102.5731274767,
    6264213.785614067
   ]
  },
  "min_20m": {
   "gradient_pct": 4.570750160404629,
   "start_distance_m": 102.0,
   "end_distance_m": 122.0,
   "midpoint_distance_m": 112.0,
   "start_elevation_m": 103.89097781661363,
   "end_elevation_m": 104.80512784869455,
   "start_xy": [
    978086.857626282,
    6264210.781779485
   ],
   "end_xy": [
    978106.5272871297,
    6264213.647683263
   ]
  },
  "min_25m": {
   "gradient_pct": 4.559866825341487,
   "start_distance_m": 103.0,
   "end_distance_m": 128.0,
   "midpoint_distance_m": 115.5,
   "start_elevation_m": 103.93758739541967,
   "end_elevation_m": 105.07755410175504,
   "start_xy": [
    978087.8398451067,
    6264210.969519147
   ],
   "end_xy": [
    978112.475102075,
    6264212.858064763
   ]
  },
  "min_50m": {
   "gradient_pct": 6.199563303680662,
   "start_distance_m": 87.0,
   "end_distance_m": 137.0,
   "midpoint_distance_m": 112.0,
   "start_elevation_m": 102.70101411416142,
   "end_elevation_m": 105.80079576600176,
   "start_xy": [
    978072.0388031333,
    6264208.511453157
   ],
   "end_xy": [
    978120.4437937709,
    6264208.834530599
   ]
  },
  "min_100m": {
   "gradient_pct": 10.98630674750561,
   "start_distance_m": 73.0,
   "end_distance_m": 173.0,
   "midpoint_distance_m": 123.0,
   "start_elevation_m": 101.13947422475111,
   "end_elevation_m": 112.12578097225672,
   "start_xy": [
    978058.6391830007,
    6264211.254714086
   ],
   "end_xy": [
    978114.6575367319,
    6264183.092744512
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 26.620091400652512,
   "start_distance_m": 34.0,
   "end_distance_m": 36.0,
   "midpoint_distance_m": 35.0,
   "start_elevation_m": 92.66028162893062,
   "end_elevation_m": 93.19268345694367,
   "start_xy": [
    978035.6263081947,
    6264241.544582321
   ],
   "end_xy": [
    978036.6261498532,
    6264239.812440105
   ]
  },
  "max_3m": {
   "gradient_pct": 25.96312633343416,
   "start_distance_m": 28.0,
   "end_distance_m": 31.0,
   "midpoint_distance_m": 29.5,
   "start_elevation_m": 91.19398831947021,
   "end_elevation_m": 91.97288210947323,
   "start_xy": [
    978032.6267832192,
    6264246.741008971
   ],
   "end_xy": [
    978034.1265457069,
    6264244.142795646
   ]
  }
 },
 "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": 0.144,
   "obstruction_max_height_m": 13.08,
   "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_E977-N6264_0m5@22LHD6QQ-2025-03-24.tif",
   "data/cache/fr/ign-lidarhd_dtm_E978-N6264_0m5@22LHD6QQ-2025-03-24.tif"
  ],
  "calculated_at": "2026-09-25T09:07:09+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": [
   "E977-N6264",
   "E978-N6264"
  ],
  "elevation_blocks": [
   "22LHD6QQ@2025-03-24"
  ],
  "ign_dalles": [
   "LHD_FXX_0977_6265_MNT_O_0M50_LAMB93_IGN69",
   "LHD_FXX_0978_6265_MNT_O_0M50_LAMB93_IGN69"
  ],
  "ign_missions": [
   "22LHD6QQ"
  ],
  "ign_editions": [
   "2025-03-24"
  ],
  "ign_dsm_edition": {
   "LHD_FXX_0977_6265_MNT_O_0M50_LAMB93_IGN69": "2025-03-24",
   "LHD_FXX_0978_6265_MNT_O_0M50_LAMB93_IGN69": "2025-03-24"
  },
  "climb_origin": "discovered",
  "structure_own_ways": 1,
  "carriageway": {
   "stations": 15,
   "stations_resolved": 15,
   "width_median_m": 5.5,
   "width_p10_m": 4.05,
   "width_min_m": 3.75,
   "width_max_m": 8.25,
   "bounded_share": 0.333,
   "unbounded_share": 0.667,
   "confidence_median": 0.0,
   "width_median_bounded_m": 5.5,
   "window_m": [
    23.0,
    48.0
   ],
   "width_at_max25_m": 5.75,
   "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": 15,
    "stations_resolved": 15,
    "width_median_m": 4.75,
    "width_p10_m": 2.4,
    "width_min_m": 1.75,
    "width_max_m": 8.0,
    "bounded_share": 0.933,
    "unbounded_share": 0.067,
    "confidence_median": 1.0,
    "width_median_bounded_m": 4.62,
    "window_m": [
     23.0,
     48.0
    ],
    "width_at_max25_m": 4.5,
    "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": "Vidauban",
  "county": "Var",
  "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)"
 }
}