{
 "ocl_version": "0.1.0",
 "name": "Discovered lane (42.7385, 2.7354)",
 "slug": "discovered-lane-42-7385-2-7354",
 "confidence": "A",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 27.852493477139717,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 258.0,
   "end_distance_m": 260.0,
   "start_elevation_m": 211.88414406307345,
   "end_elevation_m": 212.44119393261624,
   "min_gradient_pct": -4.141195593015823
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 26.330945944500666,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 362.0,
   "end_distance_m": 365.0,
   "start_elevation_m": 230.7036780446612,
   "end_elevation_m": 231.4936064229962,
   "min_gradient_pct": -2.6651475782756506
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 24.621618432447008,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 360.0,
   "end_distance_m": 365.0,
   "start_elevation_m": 230.26252550137386,
   "end_elevation_m": 231.4936064229962,
   "min_gradient_pct": -0.2503266182219477
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 22.57238482778149,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 362.0,
   "end_distance_m": 372.0,
   "start_elevation_m": 230.7036780446612,
   "end_elevation_m": 232.96091652743934,
   "min_gradient_pct": 1.5919483557482295
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 21.127089703109334,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 257.0,
   "end_distance_m": 277.0,
   "start_elevation_m": 211.70379666223317,
   "end_elevation_m": 215.92921460285504,
   "min_gradient_pct": 1.7804198040828112
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 20.70027982368447,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 257.0,
   "end_distance_m": 282.0,
   "start_elevation_m": 211.70379666223317,
   "end_elevation_m": 216.8788666181543,
   "min_gradient_pct": 1.981739729381502
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 19.633908877159172,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 234.0,
   "end_distance_m": 284.0,
   "start_elevation_m": 207.4351080977098,
   "end_elevation_m": 217.25206253628937,
   "min_gradient_pct": 2.820066443130827
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 18.55296458809019,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 239.0,
   "end_distance_m": 339.0,
   "start_elevation_m": 208.37366635850287,
   "end_elevation_m": 226.92663094659306,
   "min_gradient_pct": 4.376422939919564
  }
 ],
 "shape": {
  "ascent_concentration": 0.379,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 210.0,
  "shape_class": "sustained"
 },
 "length_m": 398.21865970585276,
 "start_elevation_m": 187.65864592578714,
 "end_elevation_m": 236.3704674821855,
 "endpoint_gain_m": 48.71182155639835,
 "overall_gradient_pct": 12.232430693323035,
 "accumulated_ascent_m": 48.89822636369715,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 24.621618432447008,
   "start_distance_m": 360.0,
   "end_distance_m": 365.0,
   "midpoint_distance_m": 362.5,
   "start_elevation_m": 230.26252550137386,
   "end_elevation_m": 231.4936064229962,
   "start_xy": [
    678500.5162749611,
    6182100.961582607
   ],
   "end_xy": [
    678505.3657026129,
    6182099.743776608
   ]
  },
  "max_10m": {
   "gradient_pct": 22.57238482778149,
   "start_distance_m": 362.0,
   "end_distance_m": 372.0,
   "midpoint_distance_m": 367.0,
   "start_elevation_m": 230.7036780446612,
   "end_elevation_m": 232.96091652743934,
   "start_xy": [
    678502.4560460218,
    6182100.474460208
   ],
   "end_xy": [
    678512.1549013256,
    6182098.038848211
   ]
  },
  "max_20m": {
   "gradient_pct": 21.127089703109334,
   "start_distance_m": 257.0,
   "end_distance_m": 277.0,
   "midpoint_distance_m": 267.0,
   "start_elevation_m": 211.70379666223317,
   "end_elevation_m": 215.92921460285504,
   "start_xy": [
    678398.5884685281,
    6182115.338093049
   ],
   "end_xy": [
    678418.4235166461,
    6182112.77472297
   ]
  },
  "max_25m": {
   "gradient_pct": 20.70027982368447,
   "start_distance_m": 257.0,
   "end_distance_m": 282.0,
   "midpoint_distance_m": 269.5,
   "start_elevation_m": 211.70379666223317,
   "end_elevation_m": 216.8788666181543,
   "start_xy": [
    678398.5884685281,
    6182115.338093049
   ],
   "end_xy": [
    678423.3822786757,
    6182112.133880451
   ]
  },
  "max_50m": {
   "gradient_pct": 19.633908877159172,
   "start_distance_m": 234.0,
   "end_distance_m": 284.0,
   "midpoint_distance_m": 259.0,
   "start_elevation_m": 207.4351080977098,
   "end_elevation_m": 217.25206253628937,
   "start_xy": [
    678375.7781631924,
    6182118.285968638
   ],
   "end_xy": [
    678425.3657834874,
    6182111.877543443
   ]
  },
  "max_100m": {
   "gradient_pct": 18.55296458809019,
   "start_distance_m": 239.0,
   "end_distance_m": 339.0,
   "midpoint_distance_m": 289.0,
   "start_elevation_m": 208.37366635850287,
   "end_elevation_m": 226.92663094659306,
   "start_xy": [
    678380.736925222,
    6182117.645126118
   ],
   "end_xy": [
    678479.912165812,
    6182104.828275729
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -0.2503266182219477,
   "start_distance_m": 2.0,
   "end_distance_m": 7.0,
   "midpoint_distance_m": 4.5,
   "start_elevation_m": 187.76700737184947,
   "end_elevation_m": 187.75449104093838,
   "start_xy": [
    678161.6078375208,
    6182199.533000342
   ],
   "end_xy": [
    678163.5674313225,
    6182194.933001197
   ]
  },
  "min_10m": {
   "gradient_pct": 1.5919483557482295,
   "start_distance_m": 2.0,
   "end_distance_m": 12.0,
   "midpoint_distance_m": 7.0,
   "start_elevation_m": 187.76700737184947,
   "end_elevation_m": 187.9262022074243,
   "start_xy": [
    678161.6078375208,
    6182199.533000342
   ],
   "end_xy": [
    678167.3217679041,
    6182192.106496605
   ]
  },
  "min_20m": {
   "gradient_pct": 1.7804198040828112,
   "start_distance_m": 2.0,
   "end_distance_m": 22.0,
   "midpoint_distance_m": 12.0,
   "start_elevation_m": 187.76700737184947,
   "end_elevation_m": 188.12309133266604,
   "start_xy": [
    678161.6078375208,
    6182199.533000342
   ],
   "end_xy": [
    678176.4744392618,
    6182188.078022079
   ]
  },
  "min_25m": {
   "gradient_pct": 1.981739729381502,
   "start_distance_m": 1.0,
   "end_distance_m": 26.0,
   "midpoint_distance_m": 13.5,
   "start_elevation_m": 187.72657034114758,
   "end_elevation_m": 188.22200527349295,
   "start_xy": [
    678161.2159187604,
    6182200.453000171
   ],
   "end_xy": [
    678180.1355078049,
    6182186.466632267
   ]
  },
  "min_50m": {
   "gradient_pct": 2.820066443130827,
   "start_distance_m": 1.0,
   "end_distance_m": 51.0,
   "midpoint_distance_m": 26.0,
   "start_elevation_m": 187.72657034114758,
   "end_elevation_m": 189.136603562713,
   "start_xy": [
    678161.2159187604,
    6182200.453000171
   ],
   "end_xy": [
    678203.0171861993,
    6182176.395445949
   ]
  },
  "min_100m": {
   "gradient_pct": 4.376422939919564,
   "start_distance_m": 1.0,
   "end_distance_m": 101.0,
   "midpoint_distance_m": 51.0,
   "start_elevation_m": 187.72657034114758,
   "end_elevation_m": 192.10299328106714,
   "start_xy": [
    678161.2159187604,
    6182200.453000171
   ],
   "end_xy": [
    678248.780542988,
    6182156.253073312
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 27.852493477139717,
   "start_distance_m": 258.0,
   "end_distance_m": 260.0,
   "midpoint_distance_m": 259.0,
   "start_elevation_m": 211.88414406307345,
   "end_elevation_m": 212.44119393261624,
   "start_xy": [
    678399.580220934,
    6182115.209924544
   ],
   "end_xy": [
    678401.5637257459,
    6182114.953587537
   ]
  },
  "max_3m": {
   "gradient_pct": 26.330945944500666,
   "start_distance_m": 362.0,
   "end_distance_m": 365.0,
   "midpoint_distance_m": 363.5,
   "start_elevation_m": 230.7036780446612,
   "end_elevation_m": 231.4936064229962,
   "start_xy": [
    678502.4560460218,
    6182100.474460208
   ],
   "end_xy": [
    678505.3657026129,
    6182099.743776608
   ]
  }
 },
 "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": 0.0,
   "obstruction_max_height_m": 1.32,
   "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-pyr4",
   "road_pbf": "block-batch-fr-pyr4.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_E678-N6182_0m5@21LHD3KS-2025-05-20.tif"
  ],
  "calculated_at": "2026-09-20T07:31:53+00:00",
  "road_source": "OpenStreetMap (local PBF extract)",
  "road_attribution": "\u00a9 OpenStreetMap contributors, ODbL",
  "osm_pbf_path": "data/cache/pbf/block-batch-fr-pyr4.osm.pbf",
  "osm_snapshot": "",
  "run_id": "fr-pyr4",
  "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": [
   "E678-N6182"
  ],
  "elevation_blocks": [
   "21LHD3KS@2025-05-20"
  ],
  "ign_dalles": [
   "LHD_FXX_0678_6183_MNT_O_0M50_LAMB93_IGN69"
  ],
  "ign_missions": [
   "21LHD3KS"
  ],
  "ign_editions": [
   "2025-05-20"
  ],
  "ign_dsm_edition": {
   "LHD_FXX_0678_6183_MNT_O_0M50_LAMB93_IGN69": "2025-05-20"
  },
  "climb_origin": "discovered",
  "structure_own_ways": 1,
  "carriageway": {
   "stations": 22,
   "stations_resolved": 22,
   "width_median_m": 4.5,
   "width_p10_m": 3.5,
   "width_min_m": 3.25,
   "width_max_m": 11.75,
   "bounded_share": 0.182,
   "unbounded_share": 0.818,
   "confidence_median": 0.0,
   "width_median_bounded_m": 5.62,
   "window_m": [
    257.0,
    282.0
   ],
   "width_at_max25_m": 3.75,
   "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": 22,
    "stations_resolved": 22,
    "width_median_m": 7.38,
    "width_p10_m": 3.73,
    "width_min_m": 3.5,
    "width_max_m": 12.0,
    "bounded_share": 0.682,
    "unbounded_share": 0.318,
    "confidence_median": 1.0,
    "width_median_bounded_m": 6.5,
    "window_m": [
     257.0,
     282.0
    ],
    "width_at_max25_m": 7.5,
    "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": "Calce",
  "county": "Pyr\u00e9n\u00e9es-Orientales",
  "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)"
 }
}