{
 "ocl_version": "0.1.0",
 "name": "Discovered lane (47.1009, 6.8759)",
 "slug": "discovered-lane-47-1009-6-8759",
 "confidence": "A",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 21.979314880007905,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 1743.0,
   "end_distance_m": 1745.0,
   "start_elevation_m": 997.6044933008011,
   "end_elevation_m": 998.0440795984013,
   "min_gradient_pct": -3.298519233277375
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 22.026110096745317,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 1671.0,
   "end_distance_m": 1674.0,
   "start_elevation_m": 985.815638743676,
   "end_elevation_m": 986.4764220465784,
   "min_gradient_pct": -1.9375404277866437
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 21.854012701337524,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 1670.0,
   "end_distance_m": 1675.0,
   "start_elevation_m": 985.6000376832826,
   "end_elevation_m": 986.6927383183495,
   "min_gradient_pct": -1.4544796323320952
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 20.881236150474933,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 1665.0,
   "end_distance_m": 1675.0,
   "start_elevation_m": 984.604614703302,
   "end_elevation_m": 986.6927383183495,
   "min_gradient_pct": -1.162468862427204
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 20.398586395648977,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 1655.0,
   "end_distance_m": 1675.0,
   "start_elevation_m": 982.6130210392197,
   "end_elevation_m": 986.6927383183495,
   "min_gradient_pct": -0.8146153492634767
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 20.31962427538201,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 1650.0,
   "end_distance_m": 1675.0,
   "start_elevation_m": 981.612832249504,
   "end_elevation_m": 986.6927383183495,
   "min_gradient_pct": -0.7920787996831677
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 19.8337915582822,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 1629.0,
   "end_distance_m": 1679.0,
   "start_elevation_m": 977.532284601007,
   "end_elevation_m": 987.449180380148,
   "min_gradient_pct": -0.604180766698164
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 18.5368382205678,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 1602.0,
   "end_distance_m": 1702.0,
   "start_elevation_m": 972.7312319441899,
   "end_elevation_m": 991.2680701647577,
   "min_gradient_pct": -0.13231560343774618
  }
 ],
 "shape": {
  "ascent_concentration": 0.635,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 162.0,
  "shape_class": "stepped"
 },
 "length_m": 1745.7392197939394,
 "start_elevation_m": 908.1242173808696,
 "end_elevation_m": 998.2156619052807,
 "endpoint_gain_m": 90.09144452441114,
 "overall_gradient_pct": 5.160647335118312,
 "accumulated_ascent_m": 92.04290921743734,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 21.854012701337524,
   "start_distance_m": 1670.0,
   "end_distance_m": 1675.0,
   "midpoint_distance_m": 1672.5,
   "start_elevation_m": 985.6000376832826,
   "end_elevation_m": 986.6927383183495,
   "start_xy": [
    2557376.105500407,
    1216919.2968123704
   ],
   "end_xy": [
    2557378.8767166743,
    1216923.4585860788
   ]
  },
  "max_10m": {
   "gradient_pct": 20.881236150474933,
   "start_distance_m": 1665.0,
   "end_distance_m": 1675.0,
   "midpoint_distance_m": 1670.0,
   "start_elevation_m": 984.604614703302,
   "end_elevation_m": 986.6927383183495,
   "start_xy": [
    2557373.401532544,
    1216915.0912447697
   ],
   "end_xy": [
    2557378.8767166743,
    1216923.4585860788
   ]
  },
  "max_20m": {
   "gradient_pct": 20.398586395648977,
   "start_distance_m": 1655.0,
   "end_distance_m": 1675.0,
   "midpoint_distance_m": 1665.0,
   "start_elevation_m": 982.6130210392197,
   "end_elevation_m": 986.6927383183495,
   "start_xy": [
    2557368.030330324,
    1216906.6561877625
   ],
   "end_xy": [
    2557378.8767166743,
    1216923.4585860788
   ]
  },
  "max_25m": {
   "gradient_pct": 20.31962427538201,
   "start_distance_m": 1650.0,
   "end_distance_m": 1675.0,
   "midpoint_distance_m": 1662.5,
   "start_elevation_m": 981.612832249504,
   "end_elevation_m": 986.6927383183495,
   "start_xy": [
    2557365.3447292144,
    1216902.438659259
   ],
   "end_xy": [
    2557378.8767166743,
    1216923.4585860788
   ]
  },
  "max_50m": {
   "gradient_pct": 19.8337915582822,
   "start_distance_m": 1629.0,
   "end_distance_m": 1679.0,
   "midpoint_distance_m": 1654.0,
   "start_elevation_m": 977.532284601007,
   "end_elevation_m": 987.449180380148,
   "start_xy": [
    2557351.8979171724,
    1216886.5839646426
   ],
   "end_xy": [
    2557381.093689688,
    1216926.7880050456
   ]
  },
  "max_100m": {
   "gradient_pct": 18.5368382205678,
   "start_distance_m": 1602.0,
   "end_distance_m": 1702.0,
   "midpoint_distance_m": 1652.0,
   "start_elevation_m": 972.7312319441899,
   "end_elevation_m": 991.2680701647577,
   "start_xy": [
    2557330.0292247846,
    1216870.8125852582
   ],
   "end_xy": [
    2557382.664296818,
    1216949.1998730516
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -1.4544796323320952,
   "start_distance_m": 780.0,
   "end_distance_m": 785.0,
   "midpoint_distance_m": 782.5,
   "start_elevation_m": 927.0567698518831,
   "end_elevation_m": 926.9840458702665,
   "start_xy": [
    2557820.7725240244,
    1216977.2623307107
   ],
   "end_xy": [
    2557816.714979707,
    1216974.3406301597
   ]
  },
  "min_10m": {
   "gradient_pct": -1.162468862427204,
   "start_distance_m": 746.0,
   "end_distance_m": 756.0,
   "midpoint_distance_m": 751.0,
   "start_elevation_m": 927.2258257725408,
   "end_elevation_m": 927.1095788862981,
   "start_xy": [
    2557848.3682948654,
    1216997.123682432
   ],
   "end_xy": [
    2557840.248760709,
    1216991.2864600548
   ]
  },
  "min_20m": {
   "gradient_pct": -0.8146153492634767,
   "start_distance_m": 749.0,
   "end_distance_m": 769.0,
   "midpoint_distance_m": 759.0,
   "start_elevation_m": 927.2118282999778,
   "end_elevation_m": 927.0489052301251,
   "start_xy": [
    2557845.9324346185,
    1216995.372515719
   ],
   "end_xy": [
    2557829.6991215236,
    1216983.690071923
   ]
  },
  "min_25m": {
   "gradient_pct": -0.7920787996831677,
   "start_distance_m": 745.0,
   "end_distance_m": 770.0,
   "midpoint_distance_m": 757.5,
   "start_elevation_m": 927.2557564231813,
   "end_elevation_m": 927.0577367232605,
   "start_xy": [
    2557849.180248281,
    1216997.7074046698
   ],
   "end_xy": [
    2557828.88761266,
    1216983.1057318128
   ]
  },
  "min_50m": {
   "gradient_pct": -0.604180766698164,
   "start_distance_m": 745.0,
   "end_distance_m": 795.0,
   "midpoint_distance_m": 770.0,
   "start_elevation_m": 927.2557564231813,
   "end_elevation_m": 926.9536660398322,
   "start_xy": [
    2557849.180248281,
    1216997.7074046698
   ],
   "end_xy": [
    2557808.599891071,
    1216968.4972290578
   ]
  },
  "min_100m": {
   "gradient_pct": -0.13231560343774618,
   "start_distance_m": 738.0,
   "end_distance_m": 838.0,
   "midpoint_distance_m": 788.0,
   "start_elevation_m": 927.240922825004,
   "end_elevation_m": 927.1086072215662,
   "start_xy": [
    2557854.863922191,
    1217001.7934603342
   ],
   "end_xy": [
    2557773.7050099387,
    1216943.3706043195
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 21.979314880007905,
   "start_distance_m": 1743.0,
   "end_distance_m": 1745.0,
   "midpoint_distance_m": 1744.0,
   "start_elevation_m": 997.6044933008011,
   "end_elevation_m": 998.0440795984013,
   "start_xy": [
    2557387.3789261477,
    1216986.0960164522
   ],
   "end_xy": [
    2557387.8564883014,
    1216988.0381633027
   ]
  },
  "max_3m": {
   "gradient_pct": 22.026110096745317,
   "start_distance_m": 1671.0,
   "end_distance_m": 1674.0,
   "midpoint_distance_m": 1672.5,
   "start_elevation_m": 985.815638743676,
   "end_elevation_m": 986.4764220465784,
   "start_xy": [
    2557376.6597436606,
    1216920.1291671123
   ],
   "end_xy": [
    2557378.3224734208,
    1216922.6262313372
   ]
  }
 },
 "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": {
  "review": [],
  "extent": [
   "may_continue_beyond_end"
  ]
 },
 "provenance": {
  "analysis_version": "0.1.0",
  "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:2056",
  "elevation_resolution_m": 0.5,
  "elevation_tiles": [
   "data/cache/ch/swissalti3d_2025_2557-1216_0.5_2056_5728.tif",
   "data/cache/ch/swissalti3d_2025_2557-1217_0.5_2056_5728.tif",
   "data/cache/ch/swissalti3d_2025_2558-1216_0.5_2056_5728.tif",
   "data/cache/ch/swissalti3d_2025_2558-1217_0.5_2056_5728.tif"
  ],
  "calculated_at": "2026-09-10T19:22:38+00:00",
  "road_source": "OpenStreetMap (local PBF extract)",
  "road_attribution": "\u00a9 OpenStreetMap contributors, ODbL",
  "osm_pbf_path": "data/cache/pbf/switzerland-2026-09-10-batch.osm.pbf",
  "osm_snapshot": "",
  "run_id": "ch-run6-260910",
  "elevation_provider": "swisstopo swissALTI3D",
  "elevation_licence": "swisstopo open government data (OGD): free use, attribution '\u00a9 swisstopo' \u2014 https://www.swisstopo.admin.ch/en/terms-and-conditions",
  "elevation_dataset": "swissALTI3D 0.5 m DTM (Federal Office of Topography swisstopo)",
  "elevation_tile_ids": [
   "2557-1216",
   "2557-1217",
   "2558-1216",
   "2558-1217"
  ],
  "climb_origin": "discovered",
  "canopy_check": "unavailable \u2014 no surface model (DSM or point cloud) registered for this coverage",
  "license": "ODbL-1.0",
  "license_url": "https://howsteep.org/licensing"
 },
 "area": {
  "place": "Renan (BE)",
  "county": "Bern/Berne",
  "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)"
 }
}