{
 "ocl_version": "0.1.0",
 "name": "Chemin de Hoxa",
 "slug": "chemin-de-hoxa",
 "confidence": "A",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 40.59839776791705,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 1104.0,
   "end_distance_m": 1106.0,
   "start_elevation_m": 363.62745924543196,
   "end_elevation_m": 364.4394272007903,
   "min_gradient_pct": -2.1607238449064425
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 33.526526747459684,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 1104.0,
   "end_distance_m": 1107.0,
   "start_elevation_m": 363.62745924543196,
   "end_elevation_m": 364.63325504785576,
   "min_gradient_pct": 1.9853091975752097
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 27.437107940399983,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 1104.0,
   "end_distance_m": 1109.0,
   "start_elevation_m": 363.62745924543196,
   "end_elevation_m": 364.99931464245196,
   "min_gradient_pct": 2.5124371222199215
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 22.859369899583157,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 1104.0,
   "end_distance_m": 1114.0,
   "start_elevation_m": 363.62745924543196,
   "end_elevation_m": 365.9133962353903,
   "min_gradient_pct": 2.785396823445012
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 21.99391534775401,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 1207.0,
   "end_distance_m": 1227.0,
   "start_elevation_m": 381.4435841510984,
   "end_elevation_m": 385.8423672206492,
   "min_gradient_pct": 3.481191918055515
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 21.669029014017042,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 1202.0,
   "end_distance_m": 1227.0,
   "start_elevation_m": 380.4251099671449,
   "end_elevation_m": 385.8423672206492,
   "min_gradient_pct": 3.532245496614678
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 20.693946081803574,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 1188.0,
   "end_distance_m": 1238.0,
   "start_elevation_m": 377.7107169527006,
   "end_elevation_m": 388.05768999360237,
   "min_gradient_pct": 3.772587264707113
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 19.203013461121714,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 1163.0,
   "end_distance_m": 1263.0,
   "start_elevation_m": 373.30081668855394,
   "end_elevation_m": 392.50383014967565,
   "min_gradient_pct": 4.080980669558187
  }
 ],
 "shape": {
  "ascent_concentration": 0.363,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 361.0,
  "shape_class": "sustained"
 },
 "length_m": 1430.45380494257,
 "start_elevation_m": 252.0579608184803,
 "end_elevation_m": 419.76972081609074,
 "endpoint_gain_m": 167.71175999761044,
 "overall_gradient_pct": 11.7243744200704,
 "accumulated_ascent_m": 168.06147378073706,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 27.437107940399983,
   "start_distance_m": 1104.0,
   "end_distance_m": 1109.0,
   "midpoint_distance_m": 1106.5,
   "start_elevation_m": 363.62745924543196,
   "end_elevation_m": 364.99931464245196,
   "start_xy": [
    359666.8779513784,
    6247094.474044926
   ],
   "end_xy": [
    359671.57706429024,
    6247096.182311372
   ]
  },
  "max_10m": {
   "gradient_pct": 22.859369899583157,
   "start_distance_m": 1104.0,
   "end_distance_m": 1114.0,
   "midpoint_distance_m": 1109.0,
   "start_elevation_m": 363.62745924543196,
   "end_elevation_m": 365.9133962353903,
   "start_xy": [
    359666.8779513784,
    6247094.474044926
   ],
   "end_xy": [
    359676.2824770609,
    6247097.87319595
   ]
  },
  "max_20m": {
   "gradient_pct": 21.99391534775401,
   "start_distance_m": 1207.0,
   "end_distance_m": 1227.0,
   "midpoint_distance_m": 1217.0,
   "start_elevation_m": 381.4435841510984,
   "end_elevation_m": 385.8423672206492,
   "start_xy": [
    359764.99467851967,
    6247101.914763706
   ],
   "end_xy": [
    359782.6198480269,
    6247092.482668889
   ]
  },
  "max_25m": {
   "gradient_pct": 21.669029014017042,
   "start_distance_m": 1202.0,
   "end_distance_m": 1227.0,
   "midpoint_distance_m": 1214.5,
   "start_elevation_m": 380.4251099671449,
   "end_elevation_m": 385.8423672206492,
   "start_xy": [
    359760.4553567665,
    6247103.986009766
   ],
   "end_xy": [
    359782.6198480269,
    6247092.482668889
   ]
  },
  "max_50m": {
   "gradient_pct": 20.693946081803574,
   "start_distance_m": 1188.0,
   "end_distance_m": 1238.0,
   "midpoint_distance_m": 1213.0,
   "start_elevation_m": 377.7107169527006,
   "end_elevation_m": 388.05768999360237,
   "start_xy": [
    359747.1118670333,
    6247108.176538302
   ],
   "end_xy": [
    359791.47682977904,
    6247085.999261499
   ]
  },
  "max_100m": {
   "gradient_pct": 19.203013461121714,
   "start_distance_m": 1163.0,
   "end_distance_m": 1263.0,
   "midpoint_distance_m": 1213.0,
   "start_elevation_m": 373.30081668855394,
   "end_elevation_m": 392.50383014967565,
   "start_xy": [
    359722.5194531768,
    6247112.413127213
   ],
   "end_xy": [
    359810.2902074455,
    6247069.57096808
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": 2.5124371222199215,
   "start_distance_m": 0.0,
   "end_distance_m": 5.0,
   "midpoint_distance_m": 2.5,
   "start_elevation_m": 252.0579608184803,
   "end_elevation_m": 252.1835826745913,
   "start_xy": [
    358976.902,
    6246315.675
   ],
   "end_xy": [
    358981.06192747405,
    6246318.448986916
   ]
  },
  "min_10m": {
   "gradient_pct": 2.785396823445012,
   "start_distance_m": 0.0,
   "end_distance_m": 10.0,
   "midpoint_distance_m": 5.0,
   "start_elevation_m": 252.0579608184803,
   "end_elevation_m": 252.3365005008248,
   "start_xy": [
    358976.902,
    6246315.675
   ],
   "end_xy": [
    358985.2218549481,
    6246321.222973832
   ]
  },
  "min_20m": {
   "gradient_pct": 3.481191918055515,
   "start_distance_m": 1019.0,
   "end_distance_m": 1039.0,
   "midpoint_distance_m": 1029.0,
   "start_elevation_m": 356.2056787342756,
   "end_elevation_m": 356.9019171178867,
   "start_xy": [
    359589.5063283871,
    6247059.714234083
   ],
   "end_xy": [
    359607.1844447986,
    6247069.067532973
   ]
  },
  "min_25m": {
   "gradient_pct": 3.532245496614678,
   "start_distance_m": 421.0,
   "end_distance_m": 446.0,
   "midpoint_distance_m": 433.5,
   "start_elevation_m": 294.92032987941565,
   "end_elevation_m": 295.8033912535693,
   "start_xy": [
    359136.3586554582,
    6246687.234973591
   ],
   "end_xy": [
    359151.8678806656,
    6246706.840458233
   ]
  },
  "min_50m": {
   "gradient_pct": 3.772587264707113,
   "start_distance_m": 397.0,
   "end_distance_m": 447.0,
   "midpoint_distance_m": 422.0,
   "start_elevation_m": 293.9589842560749,
   "end_elevation_m": 295.8452778884285,
   "start_xy": [
    359122.34415630583,
    6246667.77154981
   ],
   "end_xy": [
    359152.49306523247,
    6246707.620935176
   ]
  },
  "min_100m": {
   "gradient_pct": 4.080980669558187,
   "start_distance_m": 393.0,
   "end_distance_m": 493.0,
   "midpoint_distance_m": 443.0,
   "start_elevation_m": 293.7926442245988,
   "end_elevation_m": 297.873624894157,
   "start_xy": [
    359120.2090713372,
    6246664.389034152
   ],
   "end_xy": [
    359181.0702332843,
    6246743.666740049
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 40.59839776791705,
   "start_distance_m": 1104.0,
   "end_distance_m": 1106.0,
   "midpoint_distance_m": 1105.0,
   "start_elevation_m": 363.62745924543196,
   "end_elevation_m": 364.4394272007903,
   "start_xy": [
    359666.8779513784,
    6247094.474044926
   ],
   "end_xy": [
    359668.75639050425,
    6247095.160679072
   ]
  },
  "max_3m": {
   "gradient_pct": 33.526526747459684,
   "start_distance_m": 1104.0,
   "end_distance_m": 1107.0,
   "midpoint_distance_m": 1105.5,
   "start_elevation_m": 363.62745924543196,
   "end_elevation_m": 364.63325504785576,
   "start_xy": [
    359666.8779513784,
    6247094.474044926
   ],
   "end_xy": [
    359669.69561006717,
    6247095.503996146
   ]
  }
 },
 "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": 0.122,
   "obstruction_max_height_m": 20.29,
   "flagged_windows_m": []
  },
  "review": [],
  "extent": [
   "may_continue_beyond_end"
  ]
 },
 "provenance": {
  "analysis_version": "0.1.0",
  "run_manifest": {
   "manifest_version": "1",
   "code_git_sha": "06fa4c370391597f015858e97dcf01ca2f5b3640",
   "code_git_dirty": "false",
   "analysis_version": "0.1.0",
   "analysis_config_digest": "sha256:0048c2bbb24ab95e",
   "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-pyr1",
   "road_pbf": "block-batch-fr-pyr1.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:c54ac68b3f57b41b"
  },
  "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_E358-N6246_0m5@21LHD1EQ-2025-09-26.tif",
   "data/cache/fr/ign-lidarhd_dtm_E359-N6246_0m5@21LHD1EQ-2025-09-26.tif",
   "data/cache/fr/ign-lidarhd_dtm_E359-N6247_0m5@21LHD1EQ-2025-09-26.tif"
  ],
  "calculated_at": "2026-09-20T05:52:59+00:00",
  "road_source": "OpenStreetMap (local PBF extract)",
  "road_attribution": "\u00a9 OpenStreetMap contributors, ODbL",
  "osm_pbf_path": "data/cache/pbf/block-batch-fr-pyr1.osm.pbf",
  "osm_snapshot": "",
  "run_id": "fr-pyr1",
  "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": [
   "E358-N6246",
   "E359-N6246",
   "E359-N6247"
  ],
  "elevation_blocks": [
   "21LHD1EQ@2025-09-26"
  ],
  "ign_dalles": [
   "LHD_FXX_0358_6247_MNT_O_0M50_LAMB93_IGN69",
   "LHD_FXX_0359_6247_MNT_O_0M50_LAMB93_IGN69",
   "LHD_FXX_0359_6248_MNT_O_0M50_LAMB93_IGN69"
  ],
  "ign_missions": [
   "21LHD1EQ"
  ],
  "ign_editions": [
   "2025-09-26"
  ],
  "ign_dsm_edition": {
   "LHD_FXX_0358_6247_MNT_O_0M50_LAMB93_IGN69": "2025-09-26",
   "LHD_FXX_0359_6247_MNT_O_0M50_LAMB93_IGN69": "2025-09-26",
   "LHD_FXX_0359_6248_MNT_O_0M50_LAMB93_IGN69": "2025-09-26"
  },
  "climb_origin": "discovered",
  "structure_own_ways": "none \u2014 the route carried no way list; own decks unmasked",
  "carriageway": {
   "stations": 64,
   "stations_resolved": 64,
   "width_median_m": 5.75,
   "width_p10_m": 3.75,
   "width_min_m": 0.5,
   "width_max_m": 12.0,
   "bounded_share": 0.094,
   "unbounded_share": 0.906,
   "confidence_median": 0.0,
   "width_median_bounded_m": 4.75,
   "window_m": [
    1202.0,
    1227.0
   ],
   "width_at_max25_m": 6.0,
   "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": 64,
    "stations_resolved": 64,
    "width_median_m": 8.0,
    "width_p10_m": 2.5,
    "width_min_m": 0.5,
    "width_max_m": 12.0,
    "bounded_share": 0.516,
    "unbounded_share": 0.484,
    "confidence_median": 0.858,
    "width_median_bounded_m": 5.0,
    "window_m": [
     1202.0,
     1227.0
    ],
    "width_at_max25_m": 9.0,
    "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": "Suhescun",
  "county": "Pyr\u00e9n\u00e9es-Atlantiques",
  "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)"
 }
}