{
 "ocl_version": "0.1.0",
 "name": "Discovered lane (46.4886, 8.7909)",
 "slug": "discovered-lane-46-4886-8-7909",
 "confidence": "A",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 26.840102311126657,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 210.0,
   "end_distance_m": 212.0,
   "start_elevation_m": 917.7129154901643,
   "end_elevation_m": 918.2497175363868,
   "min_gradient_pct": -2.1448663532112278
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 26.694139176909932,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 210.0,
   "end_distance_m": 213.0,
   "start_elevation_m": 917.7129154901643,
   "end_elevation_m": 918.5137396654716,
   "min_gradient_pct": -2.0389059508185405
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 25.429630976852877,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 210.0,
   "end_distance_m": 215.0,
   "start_elevation_m": 917.7129154901643,
   "end_elevation_m": 918.9843970390069,
   "min_gradient_pct": -1.7506094788973314
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 24.808184090563827,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 204.0,
   "end_distance_m": 214.0,
   "start_elevation_m": 916.2730528823056,
   "end_elevation_m": 918.753871291362,
   "min_gradient_pct": -1.2880233425573806
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 22.451570278125246,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 200.0,
   "end_distance_m": 220.0,
   "start_elevation_m": 915.5336901007431,
   "end_elevation_m": 920.0240041563682,
   "min_gradient_pct": -0.9041803226551792
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 21.356847073039262,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 202.0,
   "end_distance_m": 227.0,
   "start_elevation_m": 915.8739437167774,
   "end_elevation_m": 921.2131554850372,
   "min_gradient_pct": -0.5811665894270845
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 20.542654627459115,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 199.0,
   "end_distance_m": 249.0,
   "start_elevation_m": 915.3663480003879,
   "end_elevation_m": 925.6376753141175,
   "min_gradient_pct": 0.3126407300046594
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 18.280527254631124,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 145.0,
   "end_distance_m": 245.0,
   "start_elevation_m": 906.6575330523822,
   "end_elevation_m": 924.9380603070133,
   "min_gradient_pct": 4.277835208399438
  }
 ],
 "shape": {
  "ascent_concentration": 0.396,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 118.0,
  "shape_class": "sustained"
 },
 "length_m": 253.23335454236718,
 "start_elevation_m": 895.7645179174712,
 "end_elevation_m": 926.0704267343846,
 "endpoint_gain_m": 30.305908816913416,
 "overall_gradient_pct": 11.967581787036307,
 "accumulated_ascent_m": 30.545916801117073,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 25.429630976852877,
   "start_distance_m": 210.0,
   "end_distance_m": 215.0,
   "midpoint_distance_m": 212.5,
   "start_elevation_m": 917.7129154901643,
   "end_elevation_m": 918.9843970390069,
   "start_xy": [
    2703807.8775051376,
    1149498.1847052714
   ],
   "end_xy": [
    2703804.3525221036,
    1149501.476365393
   ]
  },
  "max_10m": {
   "gradient_pct": 24.808184090563827,
   "start_distance_m": 204.0,
   "end_distance_m": 214.0,
   "midpoint_distance_m": 209.0,
   "start_elevation_m": 916.2730528823056,
   "end_elevation_m": 918.753871291362,
   "start_xy": [
    2703813.445270492,
    1149495.9584845128
   ],
   "end_xy": [
    2703804.7942323,
    1149500.5792076017
   ]
  },
  "max_20m": {
   "gradient_pct": 22.451570278125246,
   "start_distance_m": 200.0,
   "end_distance_m": 220.0,
   "midpoint_distance_m": 210.0,
   "start_elevation_m": 915.5336901007431,
   "end_elevation_m": 920.0240041563682,
   "start_xy": [
    2703816.936356072,
    1149494.0939082839
   ],
   "end_xy": [
    2703805.4767513075,
    1149505.933211868
   ]
  },
  "max_25m": {
   "gradient_pct": 21.356847073039262,
   "start_distance_m": 202.0,
   "end_distance_m": 227.0,
   "midpoint_distance_m": 214.5,
   "start_elevation_m": 915.8739437167774,
   "end_elevation_m": 921.2131554850372,
   "start_xy": [
    2703815.2825791095,
    1149495.1696893114
   ],
   "end_xy": [
    2703811.0038307207,
    1149510.1778835934
   ]
  },
  "max_50m": {
   "gradient_pct": 20.542654627459115,
   "start_distance_m": 199.0,
   "end_distance_m": 249.0,
   "midpoint_distance_m": 224.0,
   "start_elevation_m": 915.3663480003879,
   "end_elevation_m": 925.6376753141175,
   "start_xy": [
    2703817.669972091,
    1149493.4143440588
   ],
   "end_xy": [
    2703830.997754293,
    1149518.7227034364
   ]
  },
  "max_100m": {
   "gradient_pct": 18.280527254631124,
   "start_distance_m": 145.0,
   "end_distance_m": 245.0,
   "midpoint_distance_m": 195.0,
   "start_elevation_m": 906.6575330523822,
   "end_elevation_m": 924.9380603070133,
   "start_xy": [
    2703814.332191676,
    1149463.1855768336
   ],
   "end_xy": [
    2703827.0490988176,
    1149518.0994740364
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -1.7506094788973314,
   "start_distance_m": 94.0,
   "end_distance_m": 99.0,
   "midpoint_distance_m": 96.5,
   "start_elevation_m": 905.5224623762564,
   "end_elevation_m": 905.4349319023115,
   "start_xy": [
    2703769.894613804,
    1149461.191063118
   ],
   "end_xy": [
    2703773.862541716,
    1149458.1745266162
   ]
  },
  "min_10m": {
   "gradient_pct": -1.2880233425573806,
   "start_distance_m": 94.0,
   "end_distance_m": 104.0,
   "midpoint_distance_m": 99.0,
   "start_elevation_m": 905.5224623762564,
   "end_elevation_m": 905.3936600420006,
   "start_xy": [
    2703769.894613804,
    1149461.191063118
   ],
   "end_xy": [
    2703778.086509546,
    1149455.4990648287
   ]
  },
  "min_20m": {
   "gradient_pct": -0.9041803226551792,
   "start_distance_m": 94.0,
   "end_distance_m": 114.0,
   "midpoint_distance_m": 104.0,
   "start_elevation_m": 905.5224623762564,
   "end_elevation_m": 905.3416263117253,
   "start_xy": [
    2703769.894613804,
    1149461.191063118
   ],
   "end_xy": [
    2703787.402982623,
    1149452.1403615323
   ]
  },
  "min_25m": {
   "gradient_pct": -0.5811665894270845,
   "start_distance_m": 90.0,
   "end_distance_m": 115.0,
   "midpoint_distance_m": 102.5,
   "start_elevation_m": 905.4908625036616,
   "end_elevation_m": 905.3455708563048,
   "start_xy": [
    2703766.896012057,
    1149463.8383990552
   ],
   "end_xy": [
    2703788.4028224237,
    1149452.1484911237
   ]
  },
  "min_50m": {
   "gradient_pct": 0.3126407300046594,
   "start_distance_m": 88.0,
   "end_distance_m": 138.0,
   "midpoint_distance_m": 113.0,
   "start_elevation_m": 905.471636822546,
   "end_elevation_m": 905.6279571875483,
   "start_xy": [
    2703765.3967111837,
    1149465.1620670236
   ],
   "end_xy": [
    2703809.070126762,
    1149459.18751222
   ]
  },
  "min_100m": {
   "gradient_pct": 4.277835208399438,
   "start_distance_m": 39.0,
   "end_distance_m": 139.0,
   "midpoint_distance_m": 89.0,
   "start_elevation_m": 901.4410113736045,
   "end_elevation_m": 905.718846582004,
   "start_xy": [
    2703745.414424217,
    1149464.0681000527
   ],
   "end_xy": [
    2703809.343610131,
    1149460.1493889517
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 26.840102311126657,
   "start_distance_m": 210.0,
   "end_distance_m": 212.0,
   "midpoint_distance_m": 211.0,
   "start_elevation_m": 917.7129154901643,
   "end_elevation_m": 918.2497175363868,
   "start_xy": [
    2703807.8775051376,
    1149498.1847052714
   ],
   "end_xy": [
    2703806.0749286353,
    1149499.0478331246
   ]
  },
  "max_3m": {
   "gradient_pct": 26.694139176909932,
   "start_distance_m": 210.0,
   "end_distance_m": 213.0,
   "midpoint_distance_m": 211.5,
   "start_elevation_m": 917.7129154901643,
   "end_elevation_m": 918.5137396654716,
   "start_xy": [
    2703807.8775051376,
    1149498.1847052714
   ],
   "end_xy": [
    2703805.4217072413,
    1149499.805000088
   ]
  }
 },
 "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_2022_2703-1149_0.5_2056_5728.tif"
  ],
  "calculated_at": "2026-09-10T20:26:04+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": [
   "2703-1149"
  ],
  "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": "Faido",
  "county": "Ticino",
  "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)"
 }
}