{
 "ocl_version": "0.1.0",
 "name": "Discovered lane (47.1087, 7.8375)",
 "slug": "discovered-lane-47-1087-7-8375",
 "confidence": "A",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 25.078131111888524,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 412.0,
   "end_distance_m": 414.0,
   "start_elevation_m": 685.9394061254344,
   "end_elevation_m": 686.4409687476722,
   "min_gradient_pct": 4.951962454282466
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 23.241093119103578,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 412.0,
   "end_distance_m": 415.0,
   "start_elevation_m": 685.9394061254344,
   "end_elevation_m": 686.6366389190075,
   "min_gradient_pct": 6.523206941854672
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 22.613532384639257,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 436.0,
   "end_distance_m": 441.0,
   "start_elevation_m": 690.7871930376612,
   "end_elevation_m": 691.9178696568931,
   "min_gradient_pct": 7.1013405208282165
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 21.61894446372912,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 432.0,
   "end_distance_m": 442.0,
   "start_elevation_m": 689.949513801053,
   "end_elevation_m": 692.1114082474259,
   "min_gradient_pct": 7.347908059657584
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 20.808484287863394,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 427.0,
   "end_distance_m": 447.0,
   "start_elevation_m": 688.9447971620809,
   "end_elevation_m": 693.1064940196536,
   "min_gradient_pct": 7.607616833101929
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 20.63279369720385,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 429.0,
   "end_distance_m": 454.0,
   "start_elevation_m": 689.3639389305265,
   "end_elevation_m": 694.5221373548275,
   "min_gradient_pct": 7.650389051819275
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 20.183120493856904,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 412.0,
   "end_distance_m": 462.0,
   "start_elevation_m": 685.9394061254344,
   "end_elevation_m": 696.0309663723629,
   "min_gradient_pct": 8.198549965874236
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 16.684450166166584,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 377.0,
   "end_distance_m": 477.0,
   "start_elevation_m": 682.2405349579063,
   "end_elevation_m": 698.9249851240729,
   "min_gradient_pct": 9.10727808515287
  }
 ],
 "shape": {
  "ascent_concentration": 0.325,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 302.0,
  "shape_class": "sustained"
 },
 "length_m": 477.6062720570826,
 "start_elevation_m": 640.7026476367175,
 "end_elevation_m": 699.0250014038206,
 "endpoint_gain_m": 58.322353767103095,
 "overall_gradient_pct": 12.211387743277482,
 "accumulated_ascent_m": 58.322353767103095,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 22.613532384639257,
   "start_distance_m": 436.0,
   "end_distance_m": 441.0,
   "midpoint_distance_m": 438.5,
   "start_elevation_m": 690.7871930376612,
   "end_elevation_m": 691.9178696568931,
   "start_xy": [
    2630344.5025513447,
    1217599.9642395137
   ],
   "end_xy": [
    2630349.475317492,
    1217600.0064604403
   ]
  },
  "max_10m": {
   "gradient_pct": 21.61894446372912,
   "start_distance_m": 432.0,
   "end_distance_m": 442.0,
   "midpoint_distance_m": 437.0,
   "start_elevation_m": 689.949513801053,
   "end_elevation_m": 692.1114082474259,
   "start_xy": [
    2630340.5476621906,
    1217599.6530865107
   ],
   "end_xy": [
    2630350.403576867,
    1217599.634526935
   ]
  },
  "max_20m": {
   "gradient_pct": 20.808484287863394,
   "start_distance_m": 427.0,
   "end_distance_m": 447.0,
   "midpoint_distance_m": 437.0,
   "start_elevation_m": 688.9447971620809,
   "end_elevation_m": 693.1064940196536,
   "start_xy": [
    2630336.0718304617,
    1217597.4244254031
   ],
   "end_xy": [
    2630355.0448737433,
    1217597.774859408
   ]
  },
  "max_25m": {
   "gradient_pct": 20.63279369720385,
   "start_distance_m": 429.0,
   "end_distance_m": 454.0,
   "midpoint_distance_m": 441.5,
   "start_elevation_m": 689.3639389305265,
   "end_elevation_m": 694.5221373548275,
   "start_xy": [
    2630337.862163153,
    1217598.315889846
   ],
   "end_xy": [
    2630361.1308778175,
    1217594.3526790347
   ]
  },
  "max_50m": {
   "gradient_pct": 20.183120493856904,
   "start_distance_m": 412.0,
   "end_distance_m": 462.0,
   "midpoint_distance_m": 437.0,
   "start_elevation_m": 685.9394061254344,
   "end_elevation_m": 696.0309663723629,
   "start_xy": [
    2630321.910647951,
    1217593.5519596795
   ],
   "end_xy": [
    2630367.886825437,
    1217590.069085626
   ]
  },
  "max_100m": {
   "gradient_pct": 16.684450166166584,
   "start_distance_m": 377.0,
   "end_distance_m": 477.0,
   "midpoint_distance_m": 427.0,
   "start_elevation_m": 682.2405349579063,
   "end_elevation_m": 698.9249851240729,
   "start_xy": [
    2630288.527926704,
    1217602.2541424937
   ],
   "end_xy": [
    2630380.482890514,
    1217581.9242010613
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": 7.1013405208282165,
   "start_distance_m": 391.0,
   "end_distance_m": 396.0,
   "midpoint_distance_m": 393.5,
   "start_elevation_m": 684.099874029536,
   "end_elevation_m": 684.4549410555774,
   "start_xy": [
    2630302.3486301578,
    1217600.750580415
   ],
   "end_xy": [
    2630307.0609449507,
    1217599.0842313997
   ]
  },
  "min_10m": {
   "gradient_pct": 7.347908059657584,
   "start_distance_m": 50.0,
   "end_distance_m": 60.0,
   "midpoint_distance_m": 55.0,
   "start_elevation_m": 645.4481289076476,
   "end_elevation_m": 646.1829197136134,
   "start_xy": [
    2630027.6666192277,
    1217766.7119515135
   ],
   "end_xy": [
    2630032.9139094898,
    1217758.1992583491
   ]
  },
  "min_20m": {
   "gradient_pct": 7.607616833101929,
   "start_distance_m": 40.0,
   "end_distance_m": 60.0,
   "midpoint_distance_m": 50.0,
   "start_elevation_m": 644.661396346993,
   "end_elevation_m": 646.1829197136134,
   "start_xy": [
    2630023.0133814346,
    1217775.5540999225
   ],
   "end_xy": [
    2630032.9139094898,
    1217758.1992583491
   ]
  },
  "min_25m": {
   "gradient_pct": 7.650389051819275,
   "start_distance_m": 39.0,
   "end_distance_m": 64.0,
   "midpoint_distance_m": 51.5,
   "start_elevation_m": 644.5809865816144,
   "end_elevation_m": 646.4935838445692,
   "start_xy": [
    2630022.569143772,
    1217776.450008902
   ],
   "end_xy": [
    2630035.4980375646,
    1217755.1461601665
   ]
  },
  "min_50m": {
   "gradient_pct": 8.198549965874236,
   "start_distance_m": 26.0,
   "end_distance_m": 76.0,
   "midpoint_distance_m": 51.0,
   "start_elevation_m": 643.4405580621756,
   "end_elevation_m": 647.5398330451127,
   "start_xy": [
    2630017.4645735687,
    1217788.3718603975
   ],
   "end_xy": [
    2630043.4095371603,
    1217746.1634836965
   ]
  },
  "min_100m": {
   "gradient_pct": 9.10727808515287,
   "start_distance_m": 17.0,
   "end_distance_m": 117.0,
   "midpoint_distance_m": 67.0,
   "start_elevation_m": 642.5676879840403,
   "end_elevation_m": 651.6749660691931,
   "start_xy": [
    2630014.710396668,
    1217796.9379359763
   ],
   "end_xy": [
    2630076.0896450197,
    1217721.4920507155
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 25.078131111888524,
   "start_distance_m": 412.0,
   "end_distance_m": 414.0,
   "midpoint_distance_m": 413.0,
   "start_elevation_m": 685.9394061254344,
   "end_elevation_m": 686.4409687476722,
   "start_xy": [
    2630321.910647951,
    1217593.5519596795
   ],
   "end_xy": [
    2630323.9078812217,
    1217593.4467966466
   ]
  },
  "max_3m": {
   "gradient_pct": 23.241093119103578,
   "start_distance_m": 412.0,
   "end_distance_m": 415.0,
   "midpoint_distance_m": 413.5,
   "start_elevation_m": 685.9394061254344,
   "end_elevation_m": 686.6366389190075,
   "start_xy": [
    2630321.910647951,
    1217593.5519596795
   ],
   "end_xy": [
    2630324.9064978566,
    1217593.3942151302
   ]
  }
 },
 "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",
   "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_2629-1217_0.5_2056_5728.tif",
   "data/cache/ch/swissalti3d_2025_2630-1217_0.5_2056_5728.tif"
  ],
  "calculated_at": "2026-09-11T02:51:16+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-run7-260911",
  "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": [
   "2629-1217",
   "2630-1217"
  ],
  "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": "Huttwil",
  "county": "Bern/Berne",
  "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)"
 }
}