{
 "ocl_version": "0.1.0",
 "name": "Chemin des Campanules",
 "slug": "chemin-des-campanules",
 "confidence": "B",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 24.29006116503274,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 52.0,
   "end_distance_m": 54.0,
   "start_elevation_m": 484.2044776892573,
   "end_elevation_m": 484.690278912558,
   "min_gradient_pct": -8.4359024247874
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 23.446716553839526,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 53.0,
   "end_distance_m": 56.0,
   "start_elevation_m": 484.4317352772843,
   "end_elevation_m": 485.1351367738995,
   "min_gradient_pct": -2.524582038245171
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 22.858538782285223,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 49.0,
   "end_distance_m": 54.0,
   "start_elevation_m": 483.5473519734437,
   "end_elevation_m": 484.690278912558,
   "min_gradient_pct": 0.47217063974812845
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 22.02204158334382,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 47.0,
   "end_distance_m": 57.0,
   "start_elevation_m": 483.1310818186217,
   "end_elevation_m": 485.33328597695606,
   "min_gradient_pct": 3.9147870983322264
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 21.067412341407135,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 49.0,
   "end_distance_m": 69.0,
   "start_elevation_m": 483.5473519734437,
   "end_elevation_m": 487.76083444172514,
   "min_gradient_pct": 4.677008650025698
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 20.972085626181524,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 45.0,
   "end_distance_m": 70.0,
   "start_elevation_m": 482.72900949076757,
   "end_elevation_m": 487.97203089731295,
   "min_gradient_pct": 4.834444747879843
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 20.213686489984525,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 34.0,
   "end_distance_m": 84.0,
   "start_elevation_m": 480.64651978387246,
   "end_elevation_m": 490.7533630288647,
   "min_gradient_pct": 5.888639188447996
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 15.196775252558098,
   "diagnostic": false,
   "flags": [
    "structure_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 23.0,
   "end_distance_m": 123.0,
   "start_elevation_m": 478.7110618972234,
   "end_elevation_m": 493.90783714978147,
   "min_gradient_pct": 7.309848808812831,
   "suppressed_max_gradient_pct": 15.530619850222138,
   "suppressed_location_m": [
    15.0,
    115.0
   ]
  }
 ],
 "shape": {
  "ascent_concentration": 0.416,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 80.0,
  "shape_class": "sustained"
 },
 "length_m": 299.052223768271,
 "start_elevation_m": 476.7660117705082,
 "end_elevation_m": 508.92565118749656,
 "endpoint_gain_m": 32.15963941698834,
 "overall_gradient_pct": 10.753853962948002,
 "accumulated_ascent_m": 32.46089362562611,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 22.858538782285223,
   "start_distance_m": 49.0,
   "end_distance_m": 54.0,
   "midpoint_distance_m": 51.5,
   "start_elevation_m": 483.5473519734437,
   "end_elevation_m": 484.690278912558,
   "start_xy": [
    804872.316623556,
    6519143.692922038
   ],
   "end_xy": [
    804877.2879252018,
    6519144.08562489
   ]
  },
  "max_10m": {
   "gradient_pct": 22.02204158334382,
   "start_distance_m": 47.0,
   "end_distance_m": 57.0,
   "midpoint_distance_m": 52.0,
   "start_elevation_m": 483.1310818186217,
   "end_elevation_m": 485.33328597695606,
   "start_xy": [
    804870.3487443401,
    6519144.049925388
   ],
   "end_xy": [
    804880.2731754885,
    6519144.382745617
   ]
  },
  "max_20m": {
   "gradient_pct": 21.067412341407135,
   "start_distance_m": 49.0,
   "end_distance_m": 69.0,
   "midpoint_distance_m": 59.0,
   "start_elevation_m": 483.5473519734437,
   "end_elevation_m": 487.76083444172514,
   "start_xy": [
    804872.316623556,
    6519143.692922038
   ],
   "end_xy": [
    804891.8373570436,
    6519144.33060614
   ]
  },
  "max_25m": {
   "gradient_pct": 20.972085626181524,
   "start_distance_m": 45.0,
   "end_distance_m": 70.0,
   "midpoint_distance_m": 57.5,
   "start_elevation_m": 482.72900949076757,
   "end_elevation_m": 487.97203089731295,
   "start_xy": [
    804868.3808651244,
    6519144.406928739
   ],
   "end_xy": [
    804892.7571830099,
    6519143.938279501
   ]
  },
  "max_50m": {
   "gradient_pct": 20.213686489984525,
   "start_distance_m": 34.0,
   "end_distance_m": 84.0,
   "midpoint_distance_m": 59.0,
   "start_elevation_m": 480.64651978387246,
   "end_elevation_m": 490.7533630288647,
   "start_xy": [
    804862.340533792,
    6519152.259397736
   ],
   "end_xy": [
    804905.6347465377,
    6519138.445706553
   ]
  },
  "max_100m": {
   "gradient_pct": 15.196775252558098,
   "start_distance_m": 23.0,
   "end_distance_m": 123.0,
   "midpoint_distance_m": 73.0,
   "start_elevation_m": 478.7110618972234,
   "end_elevation_m": 493.90783714978147,
   "start_xy": [
    804869.4762284235,
    6519160.38904502
   ],
   "end_xy": [
    804938.8370877204,
    6519117.990410298
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": 0.47217063974812845,
   "start_distance_m": 294.0,
   "end_distance_m": 299.0,
   "midpoint_distance_m": 296.5,
   "start_elevation_m": 508.9079790332366,
   "end_elevation_m": 508.931587565224,
   "start_xy": [
    804964.7223855038,
    6519004.697249682
   ],
   "end_xy": [
    804962.1983627954,
    6519000.381081316
   ]
  },
  "min_10m": {
   "gradient_pct": 3.9147870983322264,
   "start_distance_m": 126.0,
   "end_distance_m": 136.0,
   "midpoint_distance_m": 131.0,
   "start_elevation_m": 494.0422309667191,
   "end_elevation_m": 494.4337096765523,
   "start_xy": [
    804941.3899838073,
    6519116.414744861
   ],
   "end_xy": [
    804949.8996374303,
    6519111.162526738
   ]
  },
  "min_20m": {
   "gradient_pct": 4.677008650025698,
   "start_distance_m": 123.0,
   "end_distance_m": 143.0,
   "midpoint_distance_m": 133.0,
   "start_elevation_m": 493.90783714978147,
   "end_elevation_m": 494.8432388797866,
   "start_xy": [
    804938.8370877204,
    6519117.990410298
   ],
   "end_xy": [
    804955.8563949664,
    6519107.485974051
   ]
  },
  "min_25m": {
   "gradient_pct": 4.834444747879843,
   "start_distance_m": 123.0,
   "end_distance_m": 148.0,
   "midpoint_distance_m": 135.5,
   "start_elevation_m": 493.90783714978147,
   "end_elevation_m": 495.11644833675143,
   "start_xy": [
    804938.8370877204,
    6519117.990410298
   ],
   "end_xy": [
    804960.1112217779,
    6519104.859864989
   ]
  },
  "min_50m": {
   "gradient_pct": 5.888639188447996,
   "start_distance_m": 113.0,
   "end_distance_m": 163.0,
   "midpoint_distance_m": 138.0,
   "start_elevation_m": 493.2093326478806,
   "end_elevation_m": 496.1536522421046,
   "start_xy": [
    804930.3274340974,
    6519123.242628422
   ],
   "end_xy": [
    804972.900920452,
    6519097.023430169
   ]
  },
  "min_100m": {
   "gradient_pct": 7.309848808812831,
   "start_distance_m": 85.0,
   "end_distance_m": 185.0,
   "midpoint_distance_m": 135.0,
   "start_elevation_m": 490.87699677888594,
   "end_elevation_m": 498.18684558769877,
   "start_xy": [
    804906.500403953,
    6519137.948839167
   ],
   "end_xy": [
    804991.8741283788,
    6519085.887121042
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 24.29006116503274,
   "start_distance_m": 52.0,
   "end_distance_m": 54.0,
   "midpoint_distance_m": 53.0,
   "start_elevation_m": 484.2044776892573,
   "end_elevation_m": 484.690278912558,
   "start_xy": [
    804875.2977583441,
    6519143.887544406
   ],
   "end_xy": [
    804877.2879252018,
    6519144.08562489
   ]
  },
  "max_3m": {
   "gradient_pct": 23.446716553839526,
   "start_distance_m": 53.0,
   "end_distance_m": 56.0,
   "midpoint_distance_m": 54.5,
   "start_elevation_m": 484.4317352772843,
   "end_elevation_m": 485.1351367738995,
   "start_xy": [
    804876.2928417729,
    6519143.986584648
   ],
   "end_xy": [
    804879.2780920595,
    6519144.283705374
   ]
  }
 },
 "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": {
  "structure_suppression": {
   "masked_fraction": 0.07,
   "windows_resited": [
    100.0
   ],
   "windows_unresolved": [],
   "minima_resited": [],
   "minima_unresolved": []
  },
  "overhead_obstruction": {
   "obstruction_threshold_m": 2.0,
   "obstructed_fraction": 0.346,
   "obstruction_max_height_m": 29.19,
   "flagged_windows_m": [
    50,
    100
   ]
  },
  "excluded_ranges_m": [
   [
    0.0,
    20.0
   ]
  ],
  "review": [],
  "extent": [
   "may_start_earlier"
  ]
 },
 "provenance": {
  "analysis_version": "0.1.0",
  "run_manifest": {
   "manifest_version": "1",
   "code_git_sha": "076a8e7f889cfb3c2cf6b3de65a6030c7155b1f0",
   "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-mc7",
   "road_pbf": "block-batch-fr-mc7.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_E804-N6518_0m5@22LHD4NL-2025-08-06.tif",
   "data/cache/fr/ign-lidarhd_dtm_E804-N6519_0m5@22LHD4NL-2025-08-06.tif",
   "data/cache/fr/ign-lidarhd_dtm_E805-N6518_0m5@22LHD4NL-2025-08-06.tif",
   "data/cache/fr/ign-lidarhd_dtm_E805-N6519_0m5@22LHD4NL-2025-08-06.tif"
  ],
  "calculated_at": "2026-09-22T12:46:00+00:00",
  "road_source": "OpenStreetMap (local PBF extract)",
  "road_attribution": "\u00a9 OpenStreetMap contributors, ODbL",
  "osm_pbf_path": "data/cache/pbf/block-batch-fr-mc7.osm.pbf",
  "osm_snapshot": "",
  "run_id": "fr-mc7",
  "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": [
   "E804-N6518",
   "E804-N6519",
   "E805-N6518",
   "E805-N6519"
  ],
  "elevation_blocks": [
   "22LHD4NL@2025-08-06"
  ],
  "ign_dalles": [
   "LHD_FXX_0804_6519_MNT_O_0M50_LAMB93_IGN69",
   "LHD_FXX_0804_6520_MNT_O_0M50_LAMB93_IGN69",
   "LHD_FXX_0805_6519_MNT_O_0M50_LAMB93_IGN69",
   "LHD_FXX_0805_6520_MNT_O_0M50_LAMB93_IGN69"
  ],
  "ign_missions": [
   "22LHD4NL"
  ],
  "ign_editions": [
   "2025-08-06"
  ],
  "ign_dsm_edition": {
   "LHD_FXX_0804_6519_MNT_O_0M50_LAMB93_IGN69": "2025-08-06",
   "LHD_FXX_0804_6520_MNT_O_0M50_LAMB93_IGN69": "2025-08-06",
   "LHD_FXX_0805_6519_MNT_O_0M50_LAMB93_IGN69": "2025-08-06",
   "LHD_FXX_0805_6520_MNT_O_0M50_LAMB93_IGN69": "2025-08-06"
  },
  "climb_origin": "discovered",
  "structure_own_ways": 1,
  "structure_mask_ranges_m": [
   [
    0.0,
    15.0
   ]
  ],
  "carriageway": {
   "stations": 17,
   "stations_resolved": 17,
   "width_median_m": 3.25,
   "width_p10_m": 1.55,
   "width_min_m": 1.25,
   "width_max_m": 6.75,
   "bounded_share": 0.353,
   "unbounded_share": 0.647,
   "confidence_median": 0.0,
   "width_median_bounded_m": 3.12,
   "window_m": [
    45.0,
    70.0
   ],
   "width_at_max25_m": 2.5,
   "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": 17,
    "stations_resolved": 17,
    "width_median_m": 3.25,
    "width_p10_m": 0.8,
    "width_min_m": 0.5,
    "width_max_m": 8.0,
    "bounded_share": 0.941,
    "unbounded_share": 0.059,
    "confidence_median": 1.0,
    "width_median_bounded_m": 3.12,
    "window_m": [
     45.0,
     70.0
    ],
    "width_at_max25_m": 4.75,
    "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": "Essertines-en-Donzy",
  "county": "Loire",
  "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)"
 }
}