{
 "ocl_version": "0.1.0",
 "name": "Col de la Joux from Pr\u00e9novel",
 "slug": "col-de-la-joux-from-prenovel",
 "confidence": "A",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 11.507148597604555,
   "diagnostic": true,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 1030.0,
   "end_distance_m": 1032.0,
   "start_elevation_m": 942.6875641998356,
   "end_elevation_m": 942.9177071717877,
   "min_gradient_pct": -9.935671353730413
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 10.308791258773908,
   "diagnostic": true,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 1028.0,
   "end_distance_m": 1031.0,
   "start_elevation_m": 942.5728077352618,
   "end_elevation_m": 942.882071473025,
   "min_gradient_pct": -7.61380270958701
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 9.986347151930204,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 16.0,
   "end_distance_m": 21.0,
   "start_elevation_m": 915.376335845225,
   "end_elevation_m": 915.8756532028215,
   "min_gradient_pct": -6.059068331396702
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 9.390165393148209,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 11.0,
   "end_distance_m": 21.0,
   "start_elevation_m": 914.9366366635066,
   "end_elevation_m": 915.8756532028215,
   "min_gradient_pct": -4.89215288902642
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 8.464987750902537,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 4.0,
   "end_distance_m": 24.0,
   "start_elevation_m": 914.3984242529889,
   "end_elevation_m": 916.0914218031694,
   "min_gradient_pct": -1.5322774252337013
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 7.788569358941459,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 0.0,
   "end_distance_m": 25.0,
   "start_elevation_m": 914.2046117207168,
   "end_elevation_m": 916.1517540604522,
   "min_gradient_pct": -1.1383812785811642
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 6.430348426451701,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 76.0,
   "end_distance_m": 126.0,
   "start_elevation_m": 918.0788296545011,
   "end_elevation_m": 921.2940038677269,
   "min_gradient_pct": -0.5136270250011421
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 6.064158899458562,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 2513.0,
   "end_distance_m": 2613.0,
   "start_elevation_m": 1012.2422986285344,
   "end_elevation_m": 1018.306457527993,
   "min_gradient_pct": 0.02983707698319904
  }
 ],
 "shape": {
  "ascent_concentration": 0.321,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 0.0,
  "shape_class": "sustained"
 },
 "length_m": 2942.6870413558345,
 "start_elevation_m": 914.2046117207168,
 "end_elevation_m": 1033.8396994453296,
 "endpoint_gain_m": 119.63508772461284,
 "overall_gradient_pct": 4.065504963432717,
 "accumulated_ascent_m": 123.21994275254315,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 9.986347151930204,
   "start_distance_m": 16.0,
   "end_distance_m": 21.0,
   "midpoint_distance_m": 18.5,
   "start_elevation_m": 915.376335845225,
   "end_elevation_m": 915.8756532028215,
   "start_xy": [
    918288.3145594384,
    6606485.410293623
   ],
   "end_xy": [
    918286.7632371917,
    6606490.149022496
   ]
  },
  "max_10m": {
   "gradient_pct": 9.390165393148209,
   "start_distance_m": 11.0,
   "end_distance_m": 21.0,
   "midpoint_distance_m": 16.0,
   "start_elevation_m": 914.9366366635066,
   "end_elevation_m": 915.8756532028215,
   "start_xy": [
    918289.5749960978,
    6606480.57177118
   ],
   "end_xy": [
    918286.7632371917,
    6606490.149022496
   ]
  },
  "max_20m": {
   "gradient_pct": 8.464987750902537,
   "start_distance_m": 4.0,
   "end_distance_m": 24.0,
   "midpoint_distance_m": 14.0,
   "start_elevation_m": 914.3984242529889,
   "end_elevation_m": 916.0914218031694,
   "start_xy": [
    918291.4995216074,
    6606473.843284323
   ],
   "end_xy": [
    918285.5780504834,
    6606492.90498557
   ]
  },
  "max_25m": {
   "gradient_pct": 7.788569358941459,
   "start_distance_m": 0.0,
   "end_distance_m": 25.0,
   "midpoint_distance_m": 12.5,
   "start_elevation_m": 914.2046117207168,
   "end_elevation_m": 916.1517540604522,
   "start_xy": [
    918292.576,
    6606469.991
   ],
   "end_xy": [
    918285.457352777,
    6606493.876328691
   ]
  },
  "max_50m": {
   "gradient_pct": 6.430348426451701,
   "start_distance_m": 76.0,
   "end_distance_m": 126.0,
   "midpoint_distance_m": 101.0,
   "start_elevation_m": 918.0788296545011,
   "end_elevation_m": 921.2940038677269,
   "start_xy": [
    918311.8752243919,
    6606536.892073522
   ],
   "end_xy": [
    918342.4551337279,
    6606576.2492161915
   ]
  },
  "max_100m": {
   "gradient_pct": 6.064158899458562,
   "start_distance_m": 2513.0,
   "end_distance_m": 2613.0,
   "midpoint_distance_m": 2563.0,
   "start_elevation_m": 1012.2422986285344,
   "end_elevation_m": 1018.306457527993,
   "start_xy": [
    918662.5944708793,
    6608562.036938136
   ],
   "end_xy": [
    918588.6183228279,
    6608529.132594273
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -6.059068331396702,
   "start_distance_m": 2937.0,
   "end_distance_m": 2942.0,
   "midpoint_distance_m": 2939.5,
   "start_elevation_m": 1034.1541726243272,
   "end_elevation_m": 1033.8512192077574,
   "start_xy": [
    918431.3829244482,
    6608671.821169258
   ],
   "end_xy": [
    918433.3655683317,
    6608676.41128072
   ]
  },
  "min_10m": {
   "gradient_pct": -4.89215288902642,
   "start_distance_m": 2932.0,
   "end_distance_m": 2942.0,
   "midpoint_distance_m": 2937.0,
   "start_elevation_m": 1034.34043449666,
   "end_elevation_m": 1033.8512192077574,
   "start_xy": [
    918429.4002805648,
    6608667.231057797
   ],
   "end_xy": [
    918433.3655683317,
    6608676.41128072
   ]
  },
  "min_20m": {
   "gradient_pct": -1.5322774252337013,
   "start_distance_m": 821.0,
   "end_distance_m": 841.0,
   "midpoint_distance_m": 831.0,
   "start_elevation_m": 939.5413716279879,
   "end_elevation_m": 939.2349161429412,
   "start_xy": [
    918237.3139080915,
    6607227.9416734725
   ],
   "end_xy": [
    918246.2535201831,
    6607245.832546443
   ]
  },
  "min_25m": {
   "gradient_pct": -1.1383812785811642,
   "start_distance_m": 822.0,
   "end_distance_m": 847.0,
   "midpoint_distance_m": 834.5,
   "start_elevation_m": 939.535198181736,
   "end_elevation_m": 939.2506028620907,
   "start_xy": [
    918237.7608886961,
    6607228.83621712
   ],
   "end_xy": [
    918249.1094011567,
    6607251.106524057
   ]
  },
  "min_50m": {
   "gradient_pct": -0.5136270250011421,
   "start_distance_m": 797.0,
   "end_distance_m": 847.0,
   "midpoint_distance_m": 822.0,
   "start_elevation_m": 939.5074163745912,
   "end_elevation_m": 939.2506028620907,
   "start_xy": [
    918229.9196921419,
    6607205.167970286
   ],
   "end_xy": [
    918249.1094011567,
    6607251.106524057
   ]
  },
  "min_100m": {
   "gradient_pct": 0.02983707698319904,
   "start_distance_m": 758.0,
   "end_distance_m": 858.0,
   "midpoint_distance_m": 808.0,
   "start_elevation_m": 939.3171677676381,
   "end_elevation_m": 939.3470048446213,
   "start_xy": [
    918219.9269669196,
    6607167.469887541
   ],
   "end_xy": [
    918254.3887125492,
    6607260.752417052
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 11.507148597604555,
   "start_distance_m": 1030.0,
   "end_distance_m": 1032.0,
   "midpoint_distance_m": 1031.0,
   "start_elevation_m": 942.6875641998356,
   "end_elevation_m": 942.9177071717877,
   "start_xy": [
    918318.6272223813,
    6607419.9273824375
   ],
   "end_xy": [
    918319.280699245,
    6607421.81761205
   ]
  },
  "max_3m": {
   "gradient_pct": 10.308791258773908,
   "start_distance_m": 1028.0,
   "end_distance_m": 1031.0,
   "midpoint_distance_m": 1029.5,
   "start_elevation_m": 942.5728077352618,
   "end_elevation_m": 942.882071473025,
   "start_xy": [
    918317.9737455175,
    6607418.037152825
   ],
   "end_xy": [
    918318.9539608132,
    6607420.872497244
   ]
  }
 },
 "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": 0.065,
   "obstruction_max_height_m": 22.69,
   "flagged_windows_m": [
    2,
    3
   ]
  },
  "review": [],
  "extent": [
   "may_start_earlier"
  ]
 },
 "provenance": {
  "analysis_version": "0.1.0",
  "run_manifest": {
   "manifest_version": "1",
   "code_git_sha": "f5b73ceb069e047c313bd7ccccf3cb122dbac107",
   "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-ju2",
   "road_pbf": "block-batch-fr-ju2.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": "sha256:79fd787249c9f7bb"
  },
  "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_E918-N6606_0m5@22LHD2PJ-2025-07-21.tif",
   "data/cache/fr/ign-lidarhd_dtm_E918-N6607_0m5@22LHD2PJ-2025-07-21.tif",
   "data/cache/fr/ign-lidarhd_dtm_E918-N6608_0m5@22LHD2PJ-2025-07-21.tif"
  ],
  "calculated_at": "2026-09-24T16:20:36+00:00",
  "road_source": "OpenStreetMap (local PBF extract)",
  "road_attribution": "\u00a9 OpenStreetMap contributors, ODbL",
  "osm_pbf_path": "data/cache/pbf/block-batch-fr-ju2.osm.pbf",
  "osm_snapshot": "",
  "run_id": "fr-ju2",
  "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": [
   "E918-N6606",
   "E918-N6607",
   "E918-N6608"
  ],
  "elevation_blocks": [
   "22LHD2PJ@2025-07-21"
  ],
  "ign_dalles": [
   "LHD_FXX_0918_6607_MNT_O_0M50_LAMB93_IGN69",
   "LHD_FXX_0918_6608_MNT_O_0M50_LAMB93_IGN69",
   "LHD_FXX_0918_6609_MNT_O_0M50_LAMB93_IGN69"
  ],
  "ign_missions": [
   "22LHD2PJ"
  ],
  "ign_editions": [
   "2025-07-21"
  ],
  "ign_dsm_edition": {
   "LHD_FXX_0918_6607_MNT_O_0M50_LAMB93_IGN69": "2025-07-21",
   "LHD_FXX_0918_6608_MNT_O_0M50_LAMB93_IGN69": "2025-07-21",
   "LHD_FXX_0918_6609_MNT_O_0M50_LAMB93_IGN69": "2025-07-21"
  },
  "climb_origin": "named-pass",
  "structure_own_ways": 9,
  "carriageway": {
   "stations": 122,
   "stations_resolved": 122,
   "width_median_m": 6.62,
   "width_p10_m": 5.0,
   "width_min_m": 4.0,
   "width_max_m": 12.0,
   "bounded_share": 0.41,
   "unbounded_share": 0.59,
   "confidence_median": 0.0,
   "width_median_bounded_m": 6.25,
   "window_m": [
    0.0,
    25.0
   ],
   "width_at_max25_m": 11.5,
   "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": 122,
    "stations_resolved": 122,
    "width_median_m": 7.0,
    "width_p10_m": 2.5,
    "width_min_m": 0.5,
    "width_max_m": 12.0,
    "bounded_share": 0.689,
    "unbounded_share": 0.311,
    "confidence_median": 1.0,
    "width_median_bounded_m": 5.75,
    "window_m": [
     0.0,
     25.0
    ],
    "width_at_max25_m": 12.0,
    "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": "Nanchez",
  "county": "Jura",
  "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)"
 }
}