{
 "ocl_version": "0.1.0",
 "name": "Chemin de G\u00e9villat",
 "slug": "chemin-de-gevillat",
 "confidence": "A",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 21.82371563962704,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 263.0,
   "end_distance_m": 265.0,
   "start_elevation_m": 431.1237555033558,
   "end_elevation_m": 431.56022981614836,
   "min_gradient_pct": 2.9875853562089105
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 21.71450268756227,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 262.0,
   "end_distance_m": 265.0,
   "start_elevation_m": 430.9087947355215,
   "end_elevation_m": 431.56022981614836,
   "min_gradient_pct": 3.552846449036906
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 21.012301675490335,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 260.0,
   "end_distance_m": 265.0,
   "start_elevation_m": 430.50961473237385,
   "end_elevation_m": 431.56022981614836,
   "min_gradient_pct": 3.82381538988966
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 20.55744512411934,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 255.0,
   "end_distance_m": 265.0,
   "start_elevation_m": 429.50448530373643,
   "end_elevation_m": 431.56022981614836,
   "min_gradient_pct": 4.205008737781668
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 20.28466644034836,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 247.0,
   "end_distance_m": 267.0,
   "start_elevation_m": 427.89360914660915,
   "end_elevation_m": 431.9505424346788,
   "min_gradient_pct": 4.42378228300754
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 20.057805903241842,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 242.0,
   "end_distance_m": 267.0,
   "start_elevation_m": 426.93609095886836,
   "end_elevation_m": 431.9505424346788,
   "min_gradient_pct": 4.690790136601663
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 19.204031561787133,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 219.0,
   "end_distance_m": 269.0,
   "start_elevation_m": 422.7331864458397,
   "end_elevation_m": 432.33520222673326,
   "min_gradient_pct": 4.966872540862482
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 18.33074157216288,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 184.0,
   "end_distance_m": 284.0,
   "start_elevation_m": 416.3638716777366,
   "end_elevation_m": 434.6946132498995,
   "min_gradient_pct": 5.515523596770436
  }
 ],
 "shape": {
  "ascent_concentration": 0.389,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 216.0,
  "shape_class": "sustained"
 },
 "length_m": 328.2310813729755,
 "start_elevation_m": 401.11589684375133,
 "end_elevation_m": 440.96375646607646,
 "endpoint_gain_m": 39.84785962232513,
 "overall_gradient_pct": 12.140184730721835,
 "accumulated_ascent_m": 39.84785962232513,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 21.012301675490335,
   "start_distance_m": 260.0,
   "end_distance_m": 265.0,
   "midpoint_distance_m": 262.5,
   "start_elevation_m": 430.50961473237385,
   "end_elevation_m": 431.56022981614836,
   "start_xy": [
    722323.1015365523,
    6493844.994544897
   ],
   "end_xy": [
    722327.885882058,
    6493843.541947884
   ]
  },
  "max_10m": {
   "gradient_pct": 20.55744512411934,
   "start_distance_m": 255.0,
   "end_distance_m": 265.0,
   "midpoint_distance_m": 260.0,
   "start_elevation_m": 429.50448530373643,
   "end_elevation_m": 431.56022981614836,
   "start_xy": [
    722318.3171910465,
    6493846.44714191
   ],
   "end_xy": [
    722327.885882058,
    6493843.541947884
   ]
  },
  "max_20m": {
   "gradient_pct": 20.28466644034836,
   "start_distance_m": 247.0,
   "end_distance_m": 267.0,
   "midpoint_distance_m": 257.0,
   "start_elevation_m": 427.89360914660915,
   "end_elevation_m": 431.9505424346788,
   "start_xy": [
    722310.5781540849,
    6493848.471197408
   ],
   "end_xy": [
    722329.7996202603,
    6493842.960909079
   ]
  },
  "max_25m": {
   "gradient_pct": 20.057805903241842,
   "start_distance_m": 242.0,
   "end_distance_m": 267.0,
   "midpoint_distance_m": 254.5,
   "start_elevation_m": 426.93609095886836,
   "end_elevation_m": 431.9505424346788,
   "start_xy": [
    722305.7355715334,
    6493849.715944062
   ],
   "end_xy": [
    722329.7996202603,
    6493842.960909079
   ]
  },
  "max_50m": {
   "gradient_pct": 19.204031561787133,
   "start_distance_m": 219.0,
   "end_distance_m": 269.0,
   "midpoint_distance_m": 244.0,
   "start_elevation_m": 422.7331864458397,
   "end_elevation_m": 432.33520222673326,
   "start_xy": [
    722283.4596917972,
    6493855.441778671
   ],
   "end_xy": [
    722331.7133584626,
    6493842.379870273
   ]
  },
  "max_100m": {
   "gradient_pct": 18.33074157216288,
   "start_distance_m": 184.0,
   "end_distance_m": 284.0,
   "midpoint_distance_m": 234.0,
   "start_elevation_m": 416.3638716777366,
   "end_elevation_m": 434.6946132498995,
   "start_xy": [
    722249.5616139374,
    6493864.15500525
   ],
   "end_xy": [
    722346.2204302255,
    6493838.612387433
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": 3.82381538988966,
   "start_distance_m": 90.0,
   "end_distance_m": 95.0,
   "midpoint_distance_m": 92.5,
   "start_elevation_m": 406.3885992155429,
   "end_elevation_m": 406.5797899850374,
   "start_xy": [
    722164.3234566114,
    6493857.550247626
   ],
   "end_xy": [
    722167.5926820498,
    6493861.329030202
   ]
  },
  "min_10m": {
   "gradient_pct": 4.205008737781668,
   "start_distance_m": 92.0,
   "end_distance_m": 102.0,
   "midpoint_distance_m": 97.0,
   "start_elevation_m": 406.47036447966997,
   "end_elevation_m": 406.89086535344813,
   "start_xy": [
    722165.6076436887,
    6493859.079669692
   ],
   "end_xy": [
    722172.3736847884,
    6493866.441240984
   ]
  },
  "min_20m": {
   "gradient_pct": 4.42378228300754,
   "start_distance_m": 85.0,
   "end_distance_m": 105.0,
   "midpoint_distance_m": 95.0,
   "start_elevation_m": 406.15190746390516,
   "end_elevation_m": 407.03666392050667,
   "start_xy": [
    722161.5866838534,
    6493853.365743489
   ],
   "end_xy": [
    722174.5384685878,
    6493868.500022008
   ]
  },
  "min_25m": {
   "gradient_pct": 4.690790136601663,
   "start_distance_m": 83.0,
   "end_distance_m": 108.0,
   "midpoint_distance_m": 95.5,
   "start_elevation_m": 406.042116926389,
   "end_elevation_m": 407.2148144605394,
   "start_xy": [
    722160.4919747502,
    6493851.691941835
   ],
   "end_xy": [
    722177.008279783,
    6493870.202970234
   ]
  },
  "min_50m": {
   "gradient_pct": 4.966872540862482,
   "start_distance_m": 54.0,
   "end_distance_m": 104.0,
   "midpoint_distance_m": 79.0,
   "start_elevation_m": 404.49734564669495,
   "end_elevation_m": 406.9807819171262,
   "start_xy": [
    722147.6120027717,
    6493825.758285167
   ],
   "end_xy": [
    722173.7473198505,
    6493867.89490075
   ]
  },
  "min_100m": {
   "gradient_pct": 5.515523596770436,
   "start_distance_m": 7.0,
   "end_distance_m": 107.0,
   "midpoint_distance_m": 57.0,
   "start_elevation_m": 401.6393482400433,
   "end_elevation_m": 407.15487183681375,
   "start_xy": [
    722119.5487723907,
    6493788.476609272
   ],
   "end_xy": [
    722176.1850093846,
    6493869.635320825
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 21.82371563962704,
   "start_distance_m": 263.0,
   "end_distance_m": 265.0,
   "midpoint_distance_m": 264.0,
   "start_elevation_m": 431.1237555033558,
   "end_elevation_m": 431.56022981614836,
   "start_xy": [
    722325.9721438556,
    6493844.122986689
   ],
   "end_xy": [
    722327.885882058,
    6493843.541947884
   ]
  },
  "max_3m": {
   "gradient_pct": 21.71450268756227,
   "start_distance_m": 262.0,
   "end_distance_m": 265.0,
   "midpoint_distance_m": 263.5,
   "start_elevation_m": 430.9087947355215,
   "end_elevation_m": 431.56022981614836,
   "start_xy": [
    722325.0152747546,
    6493844.413506092
   ],
   "end_xy": [
    722327.885882058,
    6493843.541947884
   ]
  }
 },
 "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": 0.136,
   "obstruction_max_height_m": 14.02,
   "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": "1cc9fdcd6556a02163cb21acb2293cad3067d2a1",
   "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-mc5",
   "road_pbf": "block-batch-fr-mc5.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:af4eae1f5df9e232"
  },
  "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_E722-N6493_0m5@22LHD4LL-2025-07-24.tif"
  ],
  "calculated_at": "2026-09-22T18:12:41+00:00",
  "road_source": "OpenStreetMap (local PBF extract)",
  "road_attribution": "\u00a9 OpenStreetMap contributors, ODbL",
  "osm_pbf_path": "data/cache/pbf/block-batch-fr-mc5.osm.pbf",
  "osm_snapshot": "",
  "run_id": "fr-mc5",
  "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": [
   "E722-N6493"
  ],
  "elevation_blocks": [
   "22LHD4LL@2025-07-24"
  ],
  "ign_dalles": [
   "LHD_FXX_0722_6494_MNT_O_0M50_LAMB93_IGN69"
  ],
  "ign_missions": [
   "22LHD4LL"
  ],
  "ign_editions": [
   "2025-07-24"
  ],
  "ign_dsm_edition": {
   "LHD_FXX_0722_6494_MNT_O_0M50_LAMB93_IGN69": "2025-07-24"
  },
  "climb_origin": "discovered",
  "structure_own_ways": 1,
  "carriageway": {
   "stations": 20,
   "stations_resolved": 20,
   "width_median_m": 6.88,
   "width_p10_m": 3.5,
   "width_min_m": 3.25,
   "width_max_m": 12.0,
   "bounded_share": 0.15,
   "unbounded_share": 0.85,
   "confidence_median": 0.0,
   "width_median_bounded_m": 4.0,
   "window_m": [
    242.0,
    267.0
   ],
   "width_at_max25_m": 7.5,
   "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": 11.88,
    "width_p10_m": 1.0,
    "width_min_m": 0.0,
    "width_max_m": 12.0,
    "bounded_share": 0.4,
    "unbounded_share": 0.6,
    "confidence_median": 0.0,
    "width_median_bounded_m": 2.0,
    "window_m": [
     242.0,
     267.0
    ],
    "width_at_max25_m": 12.0,
    "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": "Parentignat",
  "county": "Puy-de-D\u00f4me",
  "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)"
 }
}