{
 "ocl_version": "0.1.0",
 "name": "Chemin de la Combe",
 "slug": "chemin-de-la-combe-3",
 "confidence": "A",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 24.076125880174004,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 54.0,
   "end_distance_m": 56.0,
   "start_elevation_m": 439.06504260209624,
   "end_elevation_m": 439.5465651196997,
   "min_gradient_pct": -0.2784217111354792
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 22.96399493500303,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 54.0,
   "end_distance_m": 57.0,
   "start_elevation_m": 439.06504260209624,
   "end_elevation_m": 439.75396245014633,
   "min_gradient_pct": 0.6068085399078882
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 22.877242887511784,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 54.0,
   "end_distance_m": 59.0,
   "start_elevation_m": 439.06504260209624,
   "end_elevation_m": 440.20890474647183,
   "min_gradient_pct": 1.134851986510057
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 21.800213071958865,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 52.0,
   "end_distance_m": 62.0,
   "start_elevation_m": 438.6487208556154,
   "end_elevation_m": 440.8287421628113,
   "min_gradient_pct": 1.42096249747226
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 21.44578512905923,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 52.0,
   "end_distance_m": 72.0,
   "start_elevation_m": 438.6487208556154,
   "end_elevation_m": 442.93787788142726,
   "min_gradient_pct": 1.8010766239697773
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 21.189991995918717,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 52.0,
   "end_distance_m": 77.0,
   "start_elevation_m": 438.6487208556154,
   "end_elevation_m": 443.9462188545951,
   "min_gradient_pct": 1.8844530498004133
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 18.89301422168751,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 33.0,
   "end_distance_m": 83.0,
   "start_elevation_m": 435.5349313495414,
   "end_elevation_m": 444.98143846038516,
   "min_gradient_pct": 2.3543924643022365
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 17.89737039214606,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 48.0,
   "end_distance_m": 148.0,
   "start_elevation_m": 437.92371996906365,
   "end_elevation_m": 455.8210903612097,
   "min_gradient_pct": 3.4551079870377066
  }
 ],
 "shape": {
  "ascent_concentration": 0.392,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 205.0,
  "shape_class": "sustained"
 },
 "length_m": 342.02260394639177,
 "start_elevation_m": 432.6698408608378,
 "end_elevation_m": 471.8543243734,
 "endpoint_gain_m": 39.184483512562224,
 "overall_gradient_pct": 11.456694107475995,
 "accumulated_ascent_m": 39.20789823926515,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 22.877242887511784,
   "start_distance_m": 54.0,
   "end_distance_m": 59.0,
   "midpoint_distance_m": 56.5,
   "start_elevation_m": 439.06504260209624,
   "end_elevation_m": 440.20890474647183,
   "start_xy": [
    933634.1380882852,
    6685955.695165094
   ],
   "end_xy": [
    933635.463792177,
    6685960.516213652
   ]
  },
  "max_10m": {
   "gradient_pct": 21.800213071958865,
   "start_distance_m": 52.0,
   "end_distance_m": 62.0,
   "midpoint_distance_m": 57.0,
   "start_elevation_m": 438.6487208556154,
   "end_elevation_m": 440.8287421628113,
   "start_xy": [
    933633.5810105155,
    6685953.77862381
   ],
   "end_xy": [
    933635.4264593616,
    6685963.492615172
   ]
  },
  "max_20m": {
   "gradient_pct": 21.44578512905923,
   "start_distance_m": 52.0,
   "end_distance_m": 72.0,
   "midpoint_distance_m": 62.0,
   "start_elevation_m": 438.6487208556154,
   "end_elevation_m": 442.93787788142726,
   "start_xy": [
    933633.5810105155,
    6685953.77862381
   ],
   "end_xy": [
    933633.5288595695,
    6685973.18008199
   ]
  },
  "max_25m": {
   "gradient_pct": 21.189991995918717,
   "start_distance_m": 52.0,
   "end_distance_m": 77.0,
   "midpoint_distance_m": 64.5,
   "start_elevation_m": 438.6487208556154,
   "end_elevation_m": 443.9462188545951,
   "start_xy": [
    933633.5810105155,
    6685953.77862381
   ],
   "end_xy": [
    933631.28422735,
    6685977.562520651
   ]
  },
  "max_50m": {
   "gradient_pct": 18.89301422168751,
   "start_distance_m": 33.0,
   "end_distance_m": 83.0,
   "midpoint_distance_m": 58.0,
   "start_elevation_m": 435.5349313495414,
   "end_elevation_m": 444.98143846038516,
   "start_xy": [
    933623.389698981,
    6685937.7431266485
   ],
   "end_xy": [
    933626.6732214772,
    6685981.40161232
   ]
  },
  "max_100m": {
   "gradient_pct": 17.89737039214606,
   "start_distance_m": 48.0,
   "end_distance_m": 148.0,
   "midpoint_distance_m": 98.0,
   "start_elevation_m": 437.92371996906365,
   "end_elevation_m": 455.8210903612097,
   "start_xy": [
    933631.4354712451,
    6685950.4027296705
   ],
   "end_xy": [
    933563.4622403284,
    6685989.390026063
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": 1.134851986510057,
   "start_distance_m": 296.0,
   "end_distance_m": 301.0,
   "midpoint_distance_m": 298.5,
   "start_elevation_m": 470.53598164700173,
   "end_elevation_m": 470.59272424632724,
   "start_xy": [
    933494.6919062536,
    6686112.773452775
   ],
   "end_xy": [
    933494.1492224882,
    6686117.74391496
   ]
  },
  "min_10m": {
   "gradient_pct": 1.42096249747226,
   "start_distance_m": 292.0,
   "end_distance_m": 302.0,
   "midpoint_distance_m": 297.0,
   "start_elevation_m": 470.47440068699996,
   "end_elevation_m": 470.6164969367472,
   "start_xy": [
    933495.1975823139,
    6686108.810338175
   ],
   "end_xy": [
    933494.0406857351,
    6686118.738007396
   ]
  },
  "min_20m": {
   "gradient_pct": 1.8010766239697773,
   "start_distance_m": 281.0,
   "end_distance_m": 301.0,
   "midpoint_distance_m": 291.0,
   "start_elevation_m": 470.2325089215333,
   "end_elevation_m": 470.59272424632724,
   "start_xy": [
    933498.0011676458,
    6686098.173613619
   ],
   "end_xy": [
    933494.1492224882,
    6686117.74391496
   ]
  },
  "min_25m": {
   "gradient_pct": 1.8844530498004133,
   "start_distance_m": 280.0,
   "end_distance_m": 305.0,
   "midpoint_distance_m": 292.5,
   "start_elevation_m": 470.21211934328005,
   "end_elevation_m": 470.68323260573015,
   "start_xy": [
    933498.2560390396,
    6686097.206638659
   ],
   "end_xy": [
    933493.7150754759,
    6686121.720284708
   ]
  },
  "min_50m": {
   "gradient_pct": 2.3543924643022365,
   "start_distance_m": 273.0,
   "end_distance_m": 323.0,
   "midpoint_distance_m": 298.0,
   "start_elevation_m": 470.0422776675597,
   "end_elevation_m": 471.2194738997108,
   "start_xy": [
    933500.2498403877,
    6686090.505360588
   ],
   "end_xy": [
    933491.7614139202,
    6686139.613948573
   ]
  },
  "min_100m": {
   "gradient_pct": 3.4551079870377066,
   "start_distance_m": 242.0,
   "end_distance_m": 342.0,
   "midpoint_distance_m": 292.0,
   "start_elevation_m": 468.397414946117,
   "end_elevation_m": 471.8525229331547,
   "start_xy": [
    933511.2584991275,
    6686061.526072835
   ],
   "end_xy": [
    933489.4858341468,
    6686158.476574434
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 24.076125880174004,
   "start_distance_m": 54.0,
   "end_distance_m": 56.0,
   "midpoint_distance_m": 55.0,
   "start_elevation_m": 439.06504260209624,
   "end_elevation_m": 439.5465651196997,
   "start_xy": [
    933634.1380882852,
    6685955.695165094
   ],
   "end_xy": [
    933634.668369842,
    6685957.623584517
   ]
  },
  "max_3m": {
   "gradient_pct": 22.96399493500303,
   "start_distance_m": 54.0,
   "end_distance_m": 57.0,
   "midpoint_distance_m": 55.5,
   "start_elevation_m": 439.06504260209624,
   "end_elevation_m": 439.75396245014633,
   "start_xy": [
    933634.1380882852,
    6685955.695165094
   ],
   "end_xy": [
    933634.9335106204,
    6685958.587794228
   ]
  }
 },
 "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": 0.003,
   "obstruction_max_height_m": 3.4,
   "flagged_windows_m": []
  },
  "review": [],
  "extent": [
   "may_start_earlier"
  ]
 },
 "provenance": {
  "analysis_version": "0.1.0",
  "run_manifest": {
   "manifest_version": "1",
   "code_git_sha": "a8bd1c07da6a6cd37bf2b62c9ab5317fa9258cc2",
   "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-ju3",
   "road_pbf": "block-batch-fr-ju3.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": "sha256:85c1fbdeafb19036"
  },
  "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_E933-N6685_0m5@22LHD2PH-2025-07-10.tif",
   "data/cache/fr/ign-lidarhd_dtm_E933-N6686_0m5@22LHD2PH-2025-07-10.tif"
  ],
  "calculated_at": "2026-09-24T15:18:34+00:00",
  "road_source": "OpenStreetMap (local PBF extract)",
  "road_attribution": "\u00a9 OpenStreetMap contributors, ODbL",
  "osm_pbf_path": "data/cache/pbf/block-batch-fr-ju3.osm.pbf",
  "osm_snapshot": "",
  "run_id": "fr-ju3",
  "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": [
   "E933-N6685",
   "E933-N6686"
  ],
  "elevation_blocks": [
   "22LHD2PH@2025-07-10"
  ],
  "ign_dalles": [
   "LHD_FXX_0933_6686_MNT_O_0M50_LAMB93_IGN69",
   "LHD_FXX_0933_6687_MNT_O_0M50_LAMB93_IGN69"
  ],
  "ign_missions": [
   "22LHD2PH"
  ],
  "ign_editions": [
   "2025-07-10"
  ],
  "ign_dsm_edition": {
   "LHD_FXX_0933_6686_MNT_O_0M50_LAMB93_IGN69": "2025-07-10",
   "LHD_FXX_0933_6687_MNT_O_0M50_LAMB93_IGN69": "2025-07-10"
  },
  "climb_origin": "discovered",
  "structure_own_ways": 3,
  "carriageway": {
   "stations": 20,
   "stations_resolved": 20,
   "width_median_m": 5.38,
   "width_p10_m": 4.75,
   "width_min_m": 3.75,
   "width_max_m": 11.75,
   "bounded_share": 0.45,
   "unbounded_share": 0.55,
   "confidence_median": 0.0,
   "width_median_bounded_m": 5.0,
   "window_m": [
    52.0,
    77.0
   ],
   "width_at_max25_m": 5.0,
   "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": 20,
    "stations_resolved": 20,
    "width_median_m": 5.25,
    "width_p10_m": 3.48,
    "width_min_m": 2.75,
    "width_max_m": 12.0,
    "bounded_share": 0.75,
    "unbounded_share": 0.25,
    "confidence_median": 1.0,
    "width_median_bounded_m": 4.25,
    "window_m": [
     52.0,
     77.0
    ],
    "width_at_max25_m": 4.25,
    "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": "Montfaucon",
  "county": "Doubs",
  "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)"
 }
}