{
 "ocl_version": "0.1.0",
 "name": "Voie Communale Carraire des Nouvelles",
 "slug": "voie-communale-carraire-des-nouvelles",
 "confidence": "B",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 30.074985314033142,
   "diagnostic": true,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 270.0,
   "end_distance_m": 272.0,
   "start_elevation_m": 348.5809079211732,
   "end_elevation_m": 349.18240762745387,
   "min_gradient_pct": 3.4692957272966396
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 29.19429501343984,
   "diagnostic": true,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 270.0,
   "end_distance_m": 273.0,
   "start_elevation_m": 348.5809079211732,
   "end_elevation_m": 349.4567367715764,
   "min_gradient_pct": 3.876728362128764
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 28.541465512990953,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 268.0,
   "end_distance_m": 273.0,
   "start_elevation_m": 348.02966349592685,
   "end_elevation_m": 349.4567367715764,
   "min_gradient_pct": 4.56292571961626
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 26.710810507643714,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 263.0,
   "end_distance_m": 273.0,
   "start_elevation_m": 346.78565572081203,
   "end_elevation_m": 349.4567367715764,
   "min_gradient_pct": 6.761421562205783
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 26.251610229766413,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 253.0,
   "end_distance_m": 273.0,
   "start_elevation_m": 344.2064147256231,
   "end_elevation_m": 349.4567367715764,
   "min_gradient_pct": 7.523496236855465
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 26.12129113340029,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 248.0,
   "end_distance_m": 273.0,
   "start_elevation_m": 342.92641398822633,
   "end_elevation_m": 349.4567367715764,
   "min_gradient_pct": 7.429949146325043
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 23.15312740086233,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 226.0,
   "end_distance_m": 276.0,
   "start_elevation_m": 338.4926485517451,
   "end_elevation_m": 350.06921225217627,
   "min_gradient_pct": 9.56400591403144
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 21.397995848465143,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 176.0,
   "end_distance_m": 276.0,
   "start_elevation_m": 328.6712164037111,
   "end_elevation_m": 350.06921225217627,
   "min_gradient_pct": 10.34786285279364
  }
 ],
 "shape": {
  "ascent_concentration": 0.358,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 183.0,
  "shape_class": "sustained"
 },
 "length_m": 276.31371344178785,
 "start_elevation_m": 307.39049482079366,
 "end_elevation_m": 350.1318570859676,
 "endpoint_gain_m": 42.74136226517396,
 "overall_gradient_pct": 15.468418752288404,
 "accumulated_ascent_m": 42.74136226517396,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 28.541465512990953,
   "start_distance_m": 268.0,
   "end_distance_m": 273.0,
   "midpoint_distance_m": 270.5,
   "start_elevation_m": 348.02966349592685,
   "end_elevation_m": 349.4567367715764,
   "start_xy": [
    912634.9906277428,
    6242209.298783938
   ],
   "end_xy": [
    912636.7487904927,
    6242204.618093419
   ]
  },
  "max_10m": {
   "gradient_pct": 26.710810507643714,
   "start_distance_m": 263.0,
   "end_distance_m": 273.0,
   "midpoint_distance_m": 268.0,
   "start_elevation_m": 346.78565572081203,
   "end_elevation_m": 349.4567367715764,
   "start_xy": [
    912633.232464993,
    6242213.979474459
   ],
   "end_xy": [
    912636.7487904927,
    6242204.618093419
   ]
  },
  "max_20m": {
   "gradient_pct": 26.251610229766413,
   "start_distance_m": 253.0,
   "end_distance_m": 273.0,
   "midpoint_distance_m": 263.0,
   "start_elevation_m": 344.2064147256231,
   "end_elevation_m": 349.4567367715764,
   "start_xy": [
    912629.7161394935,
    6242223.340855499
   ],
   "end_xy": [
    912636.7487904927,
    6242204.618093419
   ]
  },
  "max_25m": {
   "gradient_pct": 26.12129113340029,
   "start_distance_m": 248.0,
   "end_distance_m": 273.0,
   "midpoint_distance_m": 260.5,
   "start_elevation_m": 342.92641398822633,
   "end_elevation_m": 349.4567367715764,
   "start_xy": [
    912627.9579767437,
    6242228.021546019
   ],
   "end_xy": [
    912636.7487904927,
    6242204.618093419
   ]
  },
  "max_50m": {
   "gradient_pct": 23.15312740086233,
   "start_distance_m": 226.0,
   "end_distance_m": 276.0,
   "midpoint_distance_m": 251.0,
   "start_elevation_m": 338.4926485517451,
   "end_elevation_m": 350.06921225217627,
   "start_xy": [
    912620.2220606446,
    6242248.6165843075
   ],
   "end_xy": [
    912637.8036881424,
    6242201.809679107
   ]
  },
  "max_100m": {
   "gradient_pct": 21.397995848465143,
   "start_distance_m": 176.0,
   "end_distance_m": 276.0,
   "midpoint_distance_m": 226.0,
   "start_elevation_m": 328.6712164037111,
   "end_elevation_m": 350.06921225217627,
   "start_xy": [
    912601.5179803472,
    6242294.974197343
   ],
   "end_xy": [
    912637.8036881424,
    6242201.809679107
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": 4.56292571961626,
   "start_distance_m": 0.0,
   "end_distance_m": 5.0,
   "midpoint_distance_m": 2.5,
   "start_elevation_m": 307.39049482079366,
   "end_elevation_m": 307.6186411067745,
   "start_xy": [
    912545.168,
    6242460.711
   ],
   "end_xy": [
    912546.1678073176,
    6242455.811981187
   ]
  },
  "min_10m": {
   "gradient_pct": 6.761421562205783,
   "start_distance_m": 0.0,
   "end_distance_m": 10.0,
   "midpoint_distance_m": 5.0,
   "start_elevation_m": 307.39049482079366,
   "end_elevation_m": 308.06663697701424,
   "start_xy": [
    912545.168,
    6242460.711
   ],
   "end_xy": [
    912547.1676146351,
    6242450.912962374
   ]
  },
  "min_20m": {
   "gradient_pct": 7.523496236855465,
   "start_distance_m": 1.0,
   "end_distance_m": 21.0,
   "midpoint_distance_m": 11.0,
   "start_elevation_m": 307.46085277704816,
   "end_elevation_m": 308.96555202441925,
   "start_xy": [
    912545.3679614635,
    6242459.731196238
   ],
   "end_xy": [
    912549.1691858002,
    6242440.0974746635
   ]
  },
  "min_25m": {
   "gradient_pct": 7.429949146325043,
   "start_distance_m": 0.0,
   "end_distance_m": 25.0,
   "midpoint_distance_m": 12.5,
   "start_elevation_m": 307.39049482079366,
   "end_elevation_m": 309.2479821073749,
   "start_xy": [
    912545.168,
    6242460.711
   ],
   "end_xy": [
    912549.8634627945,
    6242436.158187995
   ]
  },
  "min_50m": {
   "gradient_pct": 9.56400591403144,
   "start_distance_m": 60.0,
   "end_distance_m": 110.0,
   "midpoint_distance_m": 85.0,
   "start_elevation_m": 314.0355400274461,
   "end_elevation_m": 318.8175429844618,
   "start_xy": [
    912556.284832707,
    6242401.791329019
   ],
   "end_xy": [
    912575.6841494361,
    6242355.708151442
   ]
  },
  "min_100m": {
   "gradient_pct": 10.34786285279364,
   "start_distance_m": 0.0,
   "end_distance_m": 100.0,
   "midpoint_distance_m": 50.0,
   "start_elevation_m": 307.39049482079366,
   "end_elevation_m": 317.7383576735873,
   "start_xy": [
    912545.168,
    6242460.711
   ],
   "end_xy": [
    912571.7756189904,
    6242364.912669332
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 30.074985314033142,
   "start_distance_m": 270.0,
   "end_distance_m": 272.0,
   "midpoint_distance_m": 271.0,
   "start_elevation_m": 348.5809079211732,
   "end_elevation_m": 349.18240762745387,
   "start_xy": [
    912635.6938928427,
    6242207.426507731
   ],
   "end_xy": [
    912636.3971579426,
    6242205.554231523
   ]
  },
  "max_3m": {
   "gradient_pct": 29.19429501343984,
   "start_distance_m": 270.0,
   "end_distance_m": 273.0,
   "midpoint_distance_m": 271.5,
   "start_elevation_m": 348.5809079211732,
   "end_elevation_m": 349.4567367715764,
   "start_xy": [
    912635.6938928427,
    6242207.426507731
   ],
   "end_xy": [
    912636.7487904927,
    6242204.618093419
   ]
  }
 },
 "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": 0.381,
   "obstruction_max_height_m": 16.48,
   "flagged_windows_m": [
    2,
    3,
    5,
    10,
    20,
    100
   ]
  },
  "review": [],
  "extent": [
   "may_start_earlier",
   "may_continue_beyond_end"
  ]
 },
 "provenance": {
  "analysis_version": "0.1.0",
  "run_manifest": {
   "manifest_version": "1",
   "code_git_sha": "41205ec4649bb0a4093af76ff34281a5d9a13832",
   "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-pr4",
   "road_pbf": "block-batch-fr-pr4.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:ba95a0bf562c86eb"
  },
  "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_E912-N6242_0m5@21LHD7PQ-2025-03-14.tif"
  ],
  "calculated_at": "2026-09-25T09:29:17+00:00",
  "road_source": "OpenStreetMap (local PBF extract)",
  "road_attribution": "\u00a9 OpenStreetMap contributors, ODbL",
  "osm_pbf_path": "data/cache/pbf/block-batch-fr-pr4.osm.pbf",
  "osm_snapshot": "",
  "run_id": "fr-pr4",
  "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": [
   "E912-N6242"
  ],
  "elevation_blocks": [
   "21LHD7PQ@2025-03-14"
  ],
  "ign_dalles": [
   "LHD_FXX_0912_6243_MNT_O_0M50_LAMB93_IGN69"
  ],
  "ign_missions": [
   "21LHD7PQ"
  ],
  "ign_editions": [
   "2025-03-14"
  ],
  "ign_dsm_edition": {
   "LHD_FXX_0912_6243_MNT_O_0M50_LAMB93_IGN69": "2025-03-14"
  },
  "climb_origin": "discovered",
  "structure_own_ways": 1,
  "carriageway": {
   "stations": 18,
   "stations_resolved": 18,
   "width_median_m": 5.12,
   "width_p10_m": 3.7,
   "width_min_m": 1.5,
   "width_max_m": 12.0,
   "bounded_share": 0.111,
   "unbounded_share": 0.889,
   "confidence_median": 0.0,
   "width_median_bounded_m": 4.38,
   "window_m": [
    248.0,
    273.0
   ],
   "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": 18,
    "stations_resolved": 18,
    "width_median_m": 3.5,
    "width_p10_m": 1.18,
    "width_min_m": 0.75,
    "width_max_m": 12.0,
    "bounded_share": 0.889,
    "unbounded_share": 0.111,
    "confidence_median": 1.0,
    "width_median_bounded_m": 3.0,
    "window_m": [
     248.0,
     273.0
    ],
    "width_at_max25_m": 2.75,
    "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": "Roquefort-la-B\u00e9doule",
  "county": "Bouches-du-Rh\u00f4ne",
  "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)"
 }
}