{
 "ocl_version": "0.1.0",
 "name": "Chemin des Gonettes",
 "slug": "chemin-des-gonettes",
 "confidence": "B",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 24.821138868352932,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 672.0,
   "end_distance_m": 674.0,
   "start_elevation_m": 345.51110833371905,
   "end_elevation_m": 346.0075311110861,
   "min_gradient_pct": 2.258719040662527
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 24.80515274504569,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 670.0,
   "end_distance_m": 673.0,
   "start_elevation_m": 345.028705916406,
   "end_elevation_m": 345.7728604987574,
   "min_gradient_pct": 2.714095343732955
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 24.126747731671685,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 669.0,
   "end_distance_m": 674.0,
   "start_elevation_m": 344.8011937245025,
   "end_elevation_m": 346.0075311110861,
   "min_gradient_pct": 3.503782396637689
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 23.68821731405319,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 664.0,
   "end_distance_m": 674.0,
   "start_elevation_m": 343.6387093796808,
   "end_elevation_m": 346.0075311110861,
   "min_gradient_pct": 4.722255480767217
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 21.594092630374746,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 658.0,
   "end_distance_m": 678.0,
   "start_elevation_m": 342.4201682720685,
   "end_elevation_m": 346.73898679814346,
   "min_gradient_pct": 5.3337287977919345
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 20.479793571976643,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 658.0,
   "end_distance_m": 683.0,
   "start_elevation_m": 342.4201682720685,
   "end_elevation_m": 347.54011666506267,
   "min_gradient_pct": 5.465793829757558
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 18.506403768039263,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 658.0,
   "end_distance_m": 708.0,
   "start_elevation_m": 342.4201682720685,
   "end_elevation_m": 351.67337015608814,
   "min_gradient_pct": 5.785605161066201
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 18.313431155258513,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 661.0,
   "end_distance_m": 761.0,
   "start_elevation_m": 342.9751315000998,
   "end_elevation_m": 361.2885626553583,
   "min_gradient_pct": 6.1362465037786365
  }
 ],
 "shape": {
  "ascent_concentration": 0.343,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 153.0,
  "shape_class": "sustained"
 },
 "length_m": 771.8313759170777,
 "start_elevation_m": 274.8664359741323,
 "end_elevation_m": 362.77630503905993,
 "endpoint_gain_m": 87.90986906492765,
 "overall_gradient_pct": 11.389776550671387,
 "accumulated_ascent_m": 87.90986906492765,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 24.126747731671685,
   "start_distance_m": 669.0,
   "end_distance_m": 674.0,
   "midpoint_distance_m": 671.5,
   "start_elevation_m": 344.8011937245025,
   "end_elevation_m": 346.0075311110861,
   "start_xy": [
    879744.6581900914,
    6558435.042242683
   ],
   "end_xy": [
    879749.5809295432,
    6558435.917820371
   ]
  },
  "max_10m": {
   "gradient_pct": 23.68821731405319,
   "start_distance_m": 664.0,
   "end_distance_m": 674.0,
   "midpoint_distance_m": 669.0,
   "start_elevation_m": 343.6387093796808,
   "end_elevation_m": 346.0075311110861,
   "start_xy": [
    879739.8376200611,
    6558436.234951719
   ],
   "end_xy": [
    879749.5809295432,
    6558435.917820371
   ]
  },
  "max_20m": {
   "gradient_pct": 21.594092630374746,
   "start_distance_m": 658.0,
   "end_distance_m": 678.0,
   "midpoint_distance_m": 668.0,
   "start_elevation_m": 342.4201682720685,
   "end_elevation_m": 346.73898679814346,
   "start_xy": [
    879733.9838164643,
    6558437.320615282
   ],
   "end_xy": [
    879752.8097489496,
    6558437.907762487
   ]
  },
  "max_25m": {
   "gradient_pct": 20.479793571976643,
   "start_distance_m": 658.0,
   "end_distance_m": 683.0,
   "midpoint_distance_m": 670.5,
   "start_elevation_m": 342.4201682720685,
   "end_elevation_m": 347.54011666506267,
   "start_xy": [
    879733.9838164643,
    6558437.320615282
   ],
   "end_xy": [
    879756.184675083,
    6558441.596918705
   ]
  },
  "max_50m": {
   "gradient_pct": 18.506403768039263,
   "start_distance_m": 658.0,
   "end_distance_m": 708.0,
   "midpoint_distance_m": 683.0,
   "start_elevation_m": 342.4201682720685,
   "end_elevation_m": 351.67337015608814,
   "start_xy": [
    879733.9838164643,
    6558437.320615282
   ],
   "end_xy": [
    879774.0730363273,
    6558458.924481388
   ]
  },
  "max_100m": {
   "gradient_pct": 18.313431155258513,
   "start_distance_m": 661.0,
   "end_distance_m": 761.0,
   "midpoint_distance_m": 711.0,
   "start_elevation_m": 342.9751315000998,
   "end_elevation_m": 361.2885626553583,
   "start_xy": [
    879736.9501319967,
    6558437.048839104
   ],
   "end_xy": [
    879821.037280566,
    6558481.765047502
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": 3.503782396637689,
   "start_distance_m": 1.0,
   "end_distance_m": 6.0,
   "midpoint_distance_m": 3.5,
   "start_elevation_m": 274.9085544443968,
   "end_elevation_m": 275.0837435642287,
   "start_xy": [
    879297.4040622129,
    6558416.274289905
   ],
   "end_xy": [
    879302.2443732773,
    6558415.020739427
   ]
  },
  "min_10m": {
   "gradient_pct": 4.722255480767217,
   "start_distance_m": 0.0,
   "end_distance_m": 10.0,
   "midpoint_distance_m": 5.0,
   "start_elevation_m": 274.8664359741323,
   "end_elevation_m": 275.338661522209,
   "start_xy": [
    879296.436,
    6558416.525
   ],
   "end_xy": [
    879306.1165521792,
    6558414.017629005
   ]
  },
  "min_20m": {
   "gradient_pct": 5.3337287977919345,
   "start_distance_m": 569.0,
   "end_distance_m": 589.0,
   "midpoint_distance_m": 579.0,
   "start_elevation_m": 336.873585753156,
   "end_elevation_m": 337.9403315127144,
   "start_xy": [
    879709.97941812,
    6558460.998299745
   ],
   "end_xy": [
    879713.0202824443,
    6558480.726597621
   ]
  },
  "min_25m": {
   "gradient_pct": 5.465793829757558,
   "start_distance_m": 409.0,
   "end_distance_m": 434.0,
   "midpoint_distance_m": 421.5,
   "start_elevation_m": 326.6268976407699,
   "end_elevation_m": 327.9933460982093,
   "start_xy": [
    879638.0362811829,
    6558320.683324608
   ],
   "end_xy": [
    879651.5236126907,
    6558339.697651797
   ]
  },
  "min_50m": {
   "gradient_pct": 5.785605161066201,
   "start_distance_m": 543.0,
   "end_distance_m": 593.0,
   "midpoint_distance_m": 568.0,
   "start_elevation_m": 335.29061609571676,
   "end_elevation_m": 338.18341867624986,
   "start_xy": [
    879700.255963903,
    6558436.92846618
   ],
   "end_xy": [
    879714.4740277084,
    6558484.351684945
   ]
  },
  "min_100m": {
   "gradient_pct": 6.1362465037786365,
   "start_distance_m": 557.0,
   "end_distance_m": 657.0,
   "midpoint_distance_m": 607.0,
   "start_elevation_m": 336.14361117401234,
   "end_elevation_m": 342.279857677791,
   "start_xy": [
    879706.119420705,
    6558449.636063171
   ],
   "end_xy": [
    879732.9839152133,
    6558437.334668333
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 24.821138868352932,
   "start_distance_m": 672.0,
   "end_distance_m": 674.0,
   "midpoint_distance_m": 673.0,
   "start_elevation_m": 345.51110833371905,
   "end_elevation_m": 346.0075311110861,
   "start_xy": [
    879747.6118337625,
    6558435.567589295
   ],
   "end_xy": [
    879749.5809295432,
    6558435.917820371
   ]
  },
  "max_3m": {
   "gradient_pct": 24.80515274504569,
   "start_distance_m": 670.0,
   "end_distance_m": 673.0,
   "midpoint_distance_m": 671.5,
   "start_elevation_m": 345.028705916406,
   "end_elevation_m": 345.7728604987574,
   "start_xy": [
    879745.6427379817,
    6558435.21735822
   ],
   "end_xy": [
    879748.5963816529,
    6558435.742704833
   ]
  }
 },
 "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": 0.045,
   "obstruction_max_height_m": 10.62,
   "flagged_windows_m": [
    25
   ]
  },
  "review": [],
  "extent": [
   "may_start_earlier",
   "may_continue_beyond_end"
  ]
 },
 "provenance": {
  "analysis_version": "0.1.0",
  "run_manifest": {
   "manifest_version": "1",
   "code_git_sha": "c4fd6b4a89a9718922c7ed8acdf14e43dcf75a33",
   "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-ju1",
   "road_pbf": "block-batch-fr-ju1.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": "sha256:78945c7930496bfe"
  },
  "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_E879-N6558_0m5@21LHD5OK-2025-05-22.tif"
  ],
  "calculated_at": "2026-09-24T10:40:03+00:00",
  "road_source": "OpenStreetMap (local PBF extract)",
  "road_attribution": "\u00a9 OpenStreetMap contributors, ODbL",
  "osm_pbf_path": "data/cache/pbf/block-batch-fr-ju1.osm.pbf",
  "osm_snapshot": "",
  "run_id": "fr-ju1",
  "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": [
   "E879-N6558"
  ],
  "elevation_blocks": [
   "21LHD5OK@2025-05-22"
  ],
  "ign_dalles": [
   "LHD_FXX_0879_6559_MNT_O_0M50_LAMB93_IGN69"
  ],
  "ign_missions": [
   "21LHD5OK"
  ],
  "ign_editions": [
   "2025-05-22"
  ],
  "ign_dsm_edition": {
   "LHD_FXX_0879_6559_MNT_O_0M50_LAMB93_IGN69": "2025-05-22"
  },
  "climb_origin": "discovered",
  "structure_own_ways": 4,
  "carriageway": {
   "stations": 37,
   "stations_resolved": 37,
   "width_median_m": 6.0,
   "width_p10_m": 4.25,
   "width_min_m": 4.0,
   "width_max_m": 12.0,
   "bounded_share": 0.405,
   "unbounded_share": 0.595,
   "confidence_median": 0.0,
   "width_median_bounded_m": 4.75,
   "window_m": [
    658.0,
    683.0
   ],
   "width_at_max25_m": 4.75,
   "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": 37,
    "stations_resolved": 37,
    "width_median_m": 6.75,
    "width_p10_m": 1.4,
    "width_min_m": 0.75,
    "width_max_m": 12.0,
    "bounded_share": 0.676,
    "unbounded_share": 0.324,
    "confidence_median": 1.0,
    "width_median_bounded_m": 4.25,
    "window_m": [
     658.0,
     683.0
    ],
    "width_at_max25_m": 4.0,
    "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": "Saint-Martin-du-Mont",
  "county": "Ain",
  "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)"
 }
}