{
 "ocl_version": "0.1.0",
 "name": "Discovered lane (47.0430, 7.7675)",
 "slug": "discovered-lane-47-0430-7-7675",
 "confidence": "A",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 27.327702218485683,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 309.0,
   "end_distance_m": 311.0,
   "start_elevation_m": 755.2164320427357,
   "end_elevation_m": 755.7629860871054,
   "min_gradient_pct": -20.90186102957432
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 27.002983540114656,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 312.0,
   "end_distance_m": 315.0,
   "start_elevation_m": 756.0174997586661,
   "end_elevation_m": 756.8275892648695,
   "min_gradient_pct": -18.639713211283986
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 26.793994728939197,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 309.0,
   "end_distance_m": 314.0,
   "start_elevation_m": 755.2164320427357,
   "end_elevation_m": 756.5561317791827,
   "min_gradient_pct": -18.047237292801128
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 25.602505083473943,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 305.0,
   "end_distance_m": 315.0,
   "start_elevation_m": 754.2673387565221,
   "end_elevation_m": 756.8275892648695,
   "min_gradient_pct": -14.53060870170816
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 24.830625710600884,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 295.0,
   "end_distance_m": 315.0,
   "start_elevation_m": 751.8614641227493,
   "end_elevation_m": 756.8275892648695,
   "min_gradient_pct": -13.283407394539495
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 24.506540473649693,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 291.0,
   "end_distance_m": 316.0,
   "start_elevation_m": 750.9239227485974,
   "end_elevation_m": 757.0505578670098,
   "min_gradient_pct": -11.603866664423094
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 23.775445545472394,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 282.0,
   "end_distance_m": 332.0,
   "start_elevation_m": 748.8492830758064,
   "end_elevation_m": 760.7370058485426,
   "min_gradient_pct": -0.9939448890254425
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 21.967323192531126,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 231.0,
   "end_distance_m": 331.0,
   "start_elevation_m": 738.5521584154807,
   "end_elevation_m": 760.5194816080118,
   "min_gradient_pct": 6.0928141955050705
  }
 ],
 "shape": {
  "ascent_concentration": 0.415,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 204.0,
  "shape_class": "sustained"
 },
 "length_m": 409.9176478102861,
 "start_elevation_m": 713.1662200598105,
 "end_elevation_m": 763.9609933124962,
 "endpoint_gain_m": 50.79477325268567,
 "overall_gradient_pct": 12.391458021879066,
 "accumulated_ascent_m": 53.91192780656104,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 26.793994728939197,
   "start_distance_m": 309.0,
   "end_distance_m": 314.0,
   "midpoint_distance_m": 311.5,
   "start_elevation_m": 755.2164320427357,
   "end_elevation_m": 756.5561317791827,
   "start_xy": [
    2625003.5629579346,
    1210245.9934986886
   ],
   "end_xy": [
    2625000.8608876797,
    1210250.2004948067
   ]
  },
  "max_10m": {
   "gradient_pct": 25.602505083473943,
   "start_distance_m": 305.0,
   "end_distance_m": 315.0,
   "midpoint_distance_m": 310.0,
   "start_elevation_m": 754.2673387565221,
   "end_elevation_m": 756.8275892648695,
   "start_xy": [
    2625005.7246141382,
    1210242.627901794
   ],
   "end_xy": [
    2625000.320473629,
    1210251.0418940305
   ]
  },
  "max_20m": {
   "gradient_pct": 24.830625710600884,
   "start_distance_m": 295.0,
   "end_distance_m": 315.0,
   "midpoint_distance_m": 305.0,
   "start_elevation_m": 751.8614641227493,
   "end_elevation_m": 756.8275892648695,
   "start_xy": [
    2625010.9147696486,
    1210234.0850853843
   ],
   "end_xy": [
    2625000.320473629,
    1210251.0418940305
   ]
  },
  "max_25m": {
   "gradient_pct": 24.506540473649693,
   "start_distance_m": 291.0,
   "end_distance_m": 316.0,
   "midpoint_distance_m": 303.5,
   "start_elevation_m": 750.9239227485974,
   "end_elevation_m": 757.0505578670098,
   "start_xy": [
    2625012.8775390084,
    1210230.5997537733
   ],
   "end_xy": [
    2624999.780059578,
    1210251.883293254
   ]
  },
  "max_50m": {
   "gradient_pct": 23.775445545472394,
   "start_distance_m": 282.0,
   "end_distance_m": 332.0,
   "midpoint_distance_m": 307.0,
   "start_elevation_m": 748.8492830758064,
   "end_elevation_m": 760.7370058485426,
   "start_xy": [
    2625017.293770069,
    1210222.7577576486
   ],
   "end_xy": [
    2624992.7636779207,
    1210266.061862886
   ]
  },
  "max_100m": {
   "gradient_pct": 21.967323192531126,
   "start_distance_m": 231.0,
   "end_distance_m": 331.0,
   "midpoint_distance_m": 281.0,
   "start_elevation_m": 738.5521584154807,
   "end_elevation_m": 760.5194816080118,
   "start_xy": [
    2625042.3190794117,
    1210178.3197796082
   ],
   "end_xy": [
    2624992.818048137,
    1210265.0633420402
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -18.047237292801128,
   "start_distance_m": 402.0,
   "end_distance_m": 407.0,
   "midpoint_distance_m": 404.5,
   "start_elevation_m": 765.0026136289569,
   "end_elevation_m": 764.1002517643168,
   "start_xy": [
    2625048.3790526446,
    1210239.1194750897
   ],
   "end_xy": [
    2625052.0442493637,
    1210235.7185438923
   ]
  },
  "min_10m": {
   "gradient_pct": -14.53060870170816,
   "start_distance_m": 397.0,
   "end_distance_m": 407.0,
   "midpoint_distance_m": 402.0,
   "start_elevation_m": 765.5533126344876,
   "end_elevation_m": 764.1002517643168,
   "start_xy": [
    2625044.7138559255,
    1210242.5204062872
   ],
   "end_xy": [
    2625052.0442493637,
    1210235.7185438923
   ]
  },
  "min_20m": {
   "gradient_pct": -13.283407394539495,
   "start_distance_m": 387.0,
   "end_distance_m": 407.0,
   "midpoint_distance_m": 397.0,
   "start_elevation_m": 766.7569332432247,
   "end_elevation_m": 764.1002517643168,
   "start_xy": [
    2625037.3834624873,
    1210249.3222686823
   ],
   "end_xy": [
    2625052.0442493637,
    1210235.7185438923
   ]
  },
  "min_25m": {
   "gradient_pct": -11.603866664423094,
   "start_distance_m": 384.0,
   "end_distance_m": 409.0,
   "midpoint_distance_m": 396.5,
   "start_elevation_m": 766.9126153668811,
   "end_elevation_m": 764.0116487007754,
   "start_xy": [
    2625035.184344456,
    1210251.362827401
   ],
   "end_xy": [
    2625053.5103280516,
    1210234.3581714132
   ]
  },
  "min_50m": {
   "gradient_pct": -0.9939448890254425,
   "start_distance_m": 359.0,
   "end_distance_m": 409.0,
   "midpoint_distance_m": 384.0,
   "start_elevation_m": 764.5086211452881,
   "end_elevation_m": 764.0116487007754,
   "start_xy": [
    2625014.8616808206,
    1210265.5117209712
   ],
   "end_xy": [
    2625053.5103280516,
    1210234.3581714132
   ]
  },
  "min_100m": {
   "gradient_pct": 6.0928141955050705,
   "start_distance_m": 59.0,
   "end_distance_m": 159.0,
   "midpoint_distance_m": 109.0,
   "start_elevation_m": 720.5143524769148,
   "end_elevation_m": 726.6071666724199,
   "start_xy": [
    2625184.7201695605,
    1210173.4504913427
   ],
   "end_xy": [
    2625094.53796172,
    1210140.0292353893
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 27.327702218485683,
   "start_distance_m": 309.0,
   "end_distance_m": 311.0,
   "midpoint_distance_m": 310.0,
   "start_elevation_m": 755.2164320427357,
   "end_elevation_m": 755.7629860871054,
   "start_xy": [
    2625003.5629579346,
    1210245.9934986886
   ],
   "end_xy": [
    2625002.4821298327,
    1210247.676297136
   ]
  },
  "max_3m": {
   "gradient_pct": 27.002983540114656,
   "start_distance_m": 312.0,
   "end_distance_m": 315.0,
   "midpoint_distance_m": 313.5,
   "start_elevation_m": 756.0174997586661,
   "end_elevation_m": 756.8275892648695,
   "start_xy": [
    2625001.9417157816,
    1210248.5176963597
   ],
   "end_xy": [
    2625000.320473629,
    1210251.0418940305
   ]
  }
 },
 "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_start_earlier",
   "descends_at_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_2624-1210_0.5_2056_5728.tif",
   "data/cache/ch/swissalti3d_2025_2625-1210_0.5_2056_5728.tif"
  ],
  "calculated_at": "2026-09-10T20:50:58+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": [
   "2624-1210",
   "2625-1210"
  ],
  "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": "Sumiswald",
  "county": "Bern/Berne",
  "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)"
 }
}