{
 "ocl_version": "0.1.0",
 "name": "Chemin de Vigne Grosse",
 "slug": "chemin-de-vigne-grosse",
 "confidence": "A",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 24.58818863090073,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 62.0,
   "end_distance_m": 64.0,
   "start_elevation_m": 325.71230305053973,
   "end_elevation_m": 326.20406682315775,
   "min_gradient_pct": -5.744258286514992
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 24.13517258385885,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 71.0,
   "end_distance_m": 74.0,
   "start_elevation_m": 327.75517100149773,
   "end_elevation_m": 328.4792261790135,
   "min_gradient_pct": -4.674670787638509
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 23.402067164863638,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 62.0,
   "end_distance_m": 67.0,
   "start_elevation_m": 325.71230305053973,
   "end_elevation_m": 326.8824064087829,
   "min_gradient_pct": -3.8101710344926687
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 22.919861161773838,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 63.0,
   "end_distance_m": 73.0,
   "start_elevation_m": 325.9484547942557,
   "end_elevation_m": 328.2404409104331,
   "min_gradient_pct": -3.515537630527774
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 22.673332024243678,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 54.0,
   "end_distance_m": 74.0,
   "start_elevation_m": 323.94455977416476,
   "end_elevation_m": 328.4792261790135,
   "min_gradient_pct": -3.1067124594429174
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 22.535385355134622,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 51.0,
   "end_distance_m": 76.0,
   "start_elevation_m": 323.28962547777894,
   "end_elevation_m": 328.9234718165626,
   "min_gradient_pct": -3.0222742582620867
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 21.88294343667087,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 41.0,
   "end_distance_m": 91.0,
   "start_elevation_m": 321.2122303294212,
   "end_elevation_m": 332.1537020477566,
   "min_gradient_pct": -0.9872095306213851
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 20.24630842449443,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 7.0,
   "end_distance_m": 107.0,
   "start_elevation_m": 314.9701616910831,
   "end_elevation_m": 335.2164701155775,
   "min_gradient_pct": 1.377527311482993
  }
 ],
 "shape": {
  "ascent_concentration": 0.563,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 158.0,
  "shape_class": "stepped"
 },
 "length_m": 634.6963232270473,
 "start_elevation_m": 313.71839233395184,
 "end_elevation_m": 363.1395941513704,
 "endpoint_gain_m": 49.421201817418535,
 "overall_gradient_pct": 7.786590217844903,
 "accumulated_ascent_m": 51.25528728698083,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 23.402067164863638,
   "start_distance_m": 62.0,
   "end_distance_m": 67.0,
   "midpoint_distance_m": 64.5,
   "start_elevation_m": 325.71230305053973,
   "end_elevation_m": 326.8824064087829,
   "start_xy": [
    533264.0968284933,
    6241981.532542211
   ],
   "end_xy": [
    533265.0792444117,
    6241986.435078184
   ]
  },
  "max_10m": {
   "gradient_pct": 22.919861161773838,
   "start_distance_m": 63.0,
   "end_distance_m": 73.0,
   "midpoint_distance_m": 68.0,
   "start_elevation_m": 325.9484547942557,
   "end_elevation_m": 328.2404409104331,
   "start_xy": [
    533264.293311677,
    6241982.513049406
   ],
   "end_xy": [
    533266.2581435136,
    6241992.318121351
   ]
  },
  "max_20m": {
   "gradient_pct": 22.673332024243678,
   "start_distance_m": 54.0,
   "end_distance_m": 74.0,
   "midpoint_distance_m": 64.0,
   "start_elevation_m": 323.94455977416476,
   "end_elevation_m": 328.4792261790135,
   "start_xy": [
    533262.5249630241,
    6241973.688484655
   ],
   "end_xy": [
    533266.4546266972,
    6241993.298628545
   ]
  },
  "max_25m": {
   "gradient_pct": 22.535385355134622,
   "start_distance_m": 51.0,
   "end_distance_m": 76.0,
   "midpoint_distance_m": 63.5,
   "start_elevation_m": 323.28962547777894,
   "end_elevation_m": 328.9234718165626,
   "start_xy": [
    533261.9355134731,
    6241970.746963072
   ],
   "end_xy": [
    533266.8475930645,
    6241995.259642934
   ]
  },
  "max_50m": {
   "gradient_pct": 21.88294343667087,
   "start_distance_m": 41.0,
   "end_distance_m": 91.0,
   "midpoint_distance_m": 66.0,
   "start_elevation_m": 321.2122303294212,
   "end_elevation_m": 332.1537020477566,
   "start_xy": [
    533259.9706816365,
    6241960.941891126
   ],
   "end_xy": [
    533269.7948408194,
    6242009.967250853
   ]
  },
  "max_100m": {
   "gradient_pct": 20.24630842449443,
   "start_distance_m": 7.0,
   "end_distance_m": 107.0,
   "midpoint_distance_m": 57.0,
   "start_elevation_m": 314.9701616910831,
   "end_elevation_m": 335.2164701155775,
   "start_xy": [
    533258.5743286782,
    6241927.0460767625
   ],
   "end_xy": [
    533272.9385717579,
    6242025.655365965
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -3.8101710344926687,
   "start_distance_m": 600.0,
   "end_distance_m": 605.0,
   "midpoint_distance_m": 602.5,
   "start_elevation_m": 363.91032531532414,
   "end_elevation_m": 363.7198167635995,
   "start_xy": [
    533410.360470665,
    6242489.074599237
   ],
   "end_xy": [
    533409.1974322775,
    6242493.937452485
   ]
  },
  "min_10m": {
   "gradient_pct": -3.515537630527774,
   "start_distance_m": 603.0,
   "end_distance_m": 613.0,
   "midpoint_distance_m": 608.0,
   "start_elevation_m": 363.82703498928066,
   "end_elevation_m": 363.4754812262279,
   "start_xy": [
    533409.6626476325,
    6242491.992311185
   ],
   "end_xy": [
    533405.0951128857,
    6242500.734865219
   ]
  },
  "min_20m": {
   "gradient_pct": -3.1067124594429174,
   "start_distance_m": 597.0,
   "end_distance_m": 617.0,
   "midpoint_distance_m": 607.0,
   "start_elevation_m": 363.98462394840465,
   "end_elevation_m": 363.36328145651606,
   "start_xy": [
    533410.8713736441,
    6242486.1361730425
   ],
   "end_xy": [
    533402.8632072606,
    6242504.054292471
   ]
  },
  "min_25m": {
   "gradient_pct": -3.0222742582620867,
   "start_distance_m": 598.0,
   "end_distance_m": 623.0,
   "midpoint_distance_m": 610.5,
   "start_elevation_m": 363.9665901570522,
   "end_elevation_m": 363.2110215924867,
   "start_xy": [
    533410.8256860201,
    6242487.129457938
   ],
   "end_xy": [
    533399.5153488229,
    6242509.033433349
   ]
  },
  "min_50m": {
   "gradient_pct": -0.9872095306213851,
   "start_distance_m": 584.0,
   "end_distance_m": 634.0,
   "midpoint_distance_m": 609.0,
   "start_elevation_m": 363.6575792895637,
   "end_elevation_m": 363.16397452425304,
   "start_xy": [
    533410.4443207833,
    6242473.160235146
   ],
   "end_xy": [
    533399.2271180912,
    6242519.950677671
   ]
  },
  "min_100m": {
   "gradient_pct": 1.377527311482993,
   "start_distance_m": 401.0,
   "end_distance_m": 501.0,
   "midpoint_distance_m": 451.0,
   "start_elevation_m": 358.47678229744486,
   "end_elevation_m": 359.85430960892785,
   "start_xy": [
    533385.1409754021,
    6242292.083824689
   ],
   "end_xy": [
    533396.0906979884,
    6242391.411089432
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 24.58818863090073,
   "start_distance_m": 62.0,
   "end_distance_m": 64.0,
   "midpoint_distance_m": 63.0,
   "start_elevation_m": 325.71230305053973,
   "end_elevation_m": 326.20406682315775,
   "start_xy": [
    533264.0968284933,
    6241981.532542211
   ],
   "end_xy": [
    533264.4897948606,
    6241983.4935566
   ]
  },
  "max_3m": {
   "gradient_pct": 24.13517258385885,
   "start_distance_m": 71.0,
   "end_distance_m": 74.0,
   "midpoint_distance_m": 72.5,
   "start_elevation_m": 327.75517100149773,
   "end_elevation_m": 328.4792261790135,
   "start_xy": [
    533265.8651771463,
    6241990.357106962
   ],
   "end_xy": [
    533266.4546266972,
    6241993.298628545
   ]
  }
 },
 "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": 0.192,
   "obstruction_max_height_m": 21.82,
   "flagged_windows_m": []
  },
  "review": [],
  "extent": [
   "may_start_earlier"
  ]
 },
 "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-pyr2",
   "road_pbf": "block-batch-fr-pyr2.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_E533-N6241_0m5@22LHD1HQ-2026-03-20.tif",
   "data/cache/fr/ign-lidarhd_dtm_E533-N6242_0m5@22LHD1HQ-2025-03-25.tif"
  ],
  "calculated_at": "2026-09-20T07:03:07+00:00",
  "road_source": "OpenStreetMap (local PBF extract)",
  "road_attribution": "\u00a9 OpenStreetMap contributors, ODbL",
  "osm_pbf_path": "data/cache/pbf/block-batch-fr-pyr2.osm.pbf",
  "osm_snapshot": "",
  "run_id": "fr-pyr2",
  "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": [
   "E533-N6241",
   "E533-N6242"
  ],
  "elevation_blocks": [
   "22LHD1HQ@2025-03-25",
   "22LHD1HQ@2026-03-20"
  ],
  "ign_dalles": [
   "LHD_FXX_0533_6242_MNT_O_0M50_LAMB93_IGN69",
   "LHD_FXX_0533_6243_MNT_O_0M50_LAMB93_IGN69"
  ],
  "ign_missions": [
   "22LHD1HQ"
  ],
  "ign_editions": [
   "2025-03-25",
   "2026-03-20"
  ],
  "ign_dsm_edition": {
   "LHD_FXX_0533_6242_MNT_O_0M50_LAMB93_IGN69": "2026-03-20",
   "LHD_FXX_0533_6243_MNT_O_0M50_LAMB93_IGN69": "2025-03-25"
  },
  "climb_origin": "discovered",
  "structure_own_ways": 1,
  "carriageway": {
   "stations": 32,
   "stations_resolved": 32,
   "width_median_m": 4.62,
   "width_p10_m": 3.25,
   "width_min_m": 2.75,
   "width_max_m": 11.25,
   "bounded_share": 0.219,
   "unbounded_share": 0.781,
   "confidence_median": 0.0,
   "width_median_bounded_m": 4.25,
   "window_m": [
    51.0,
    76.0
   ],
   "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": 32,
    "stations_resolved": 32,
    "width_median_m": 7.12,
    "width_p10_m": 3.0,
    "width_min_m": 0.5,
    "width_max_m": 12.0,
    "bounded_share": 0.531,
    "unbounded_share": 0.469,
    "confidence_median": 0.887,
    "width_median_bounded_m": 3.75,
    "window_m": [
     51.0,
     76.0
    ],
    "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": "Samouillan",
  "county": "Haute-Garonne",
  "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)"
 }
}