{
 "ocl_version": "0.1.0",
 "name": "Discovered lane (46.1684, 9.0480)",
 "slug": "discovered-lane-46-1684-9-0480",
 "confidence": "U",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 35.559116532897406,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 3886.0,
   "end_distance_m": 3888.0,
   "start_elevation_m": 786.317995399759,
   "end_elevation_m": 787.0291777304169,
   "min_gradient_pct": -12.60164681903575
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 37.37270464027157,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 3886.0,
   "end_distance_m": 3889.0,
   "start_elevation_m": 786.317995399759,
   "end_elevation_m": 787.4391765389671,
   "min_gradient_pct": -4.489488441299727
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 33.74272744147447,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 3886.0,
   "end_distance_m": 3891.0,
   "start_elevation_m": 786.317995399759,
   "end_elevation_m": 788.0051317718327,
   "min_gradient_pct": -1.6459516859708856
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 25.238074212092556,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 84.0,
   "end_distance_m": 94.0,
   "start_elevation_m": 482.5028665069131,
   "end_elevation_m": 485.02667392812236,
   "min_gradient_pct": -1.6048124798697927
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 23.090995785257462,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 84.0,
   "end_distance_m": 104.0,
   "start_elevation_m": 482.5028665069131,
   "end_elevation_m": 487.1210656639646,
   "min_gradient_pct": -0.981205036073618
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 22.40727907465225,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 80.0,
   "end_distance_m": 105.0,
   "start_elevation_m": 481.7312284045673,
   "end_elevation_m": 487.33304817323034,
   "min_gradient_pct": -0.508209100099748
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 21.40569456744379,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 54.0,
   "end_distance_m": 104.0,
   "start_elevation_m": 476.4182183802427,
   "end_elevation_m": 487.1210656639646,
   "min_gradient_pct": 2.1815372073002663
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 19.985857613341636,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 54.0,
   "end_distance_m": 154.0,
   "start_elevation_m": 476.4182183802427,
   "end_elevation_m": 496.40407599358434,
   "min_gradient_pct": 5.0991968651306365
  }
 ],
 "shape": {
  "ascent_concentration": 0.276,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 192.0,
  "shape_class": "sustained"
 },
 "length_m": 3939.480336408568,
 "start_elevation_m": 468.2841481479482,
 "end_elevation_m": 795.4158931719178,
 "endpoint_gain_m": 327.1317450239696,
 "overall_gradient_pct": 8.303931409445736,
 "accumulated_ascent_m": 327.81276316963954,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 33.74272744147447,
   "start_distance_m": 3886.0,
   "end_distance_m": 3891.0,
   "midpoint_distance_m": 3888.5,
   "start_elevation_m": 786.317995399759,
   "end_elevation_m": 788.0051317718327,
   "start_xy": [
    2725012.4292854993,
    1114350.5038581546
   ],
   "end_xy": [
    2725017.4122259566,
    1114350.9165376895
   ]
  },
  "max_10m": {
   "gradient_pct": 25.238074212092556,
   "start_distance_m": 84.0,
   "end_distance_m": 94.0,
   "midpoint_distance_m": 89.0,
   "start_elevation_m": 482.5028665069131,
   "end_elevation_m": 485.02667392812236,
   "start_xy": [
    2722864.2658372666,
    1114354.6007246876
   ],
   "end_xy": [
    2722873.8123161136,
    1114357.5746664305
   ]
  },
  "max_20m": {
   "gradient_pct": 23.090995785257462,
   "start_distance_m": 84.0,
   "end_distance_m": 104.0,
   "midpoint_distance_m": 94.0,
   "start_elevation_m": 482.5028665069131,
   "end_elevation_m": 487.1210656639646,
   "start_xy": [
    2722864.2658372666,
    1114354.6007246876
   ],
   "end_xy": [
    2722883.517286834,
    1114359.9830659544
   ]
  },
  "max_25m": {
   "gradient_pct": 22.40727907465225,
   "start_distance_m": 80.0,
   "end_distance_m": 105.0,
   "midpoint_distance_m": 92.5,
   "start_elevation_m": 481.7312284045673,
   "end_elevation_m": 487.33304817323034,
   "start_xy": [
    2722860.4598094933,
    1114353.3702156106
   ],
   "end_xy": [
    2722884.4886409375,
    1114360.2207026626
   ]
  },
  "max_50m": {
   "gradient_pct": 21.40569456744379,
   "start_distance_m": 54.0,
   "end_distance_m": 104.0,
   "midpoint_distance_m": 79.0,
   "start_elevation_m": 476.4182183802427,
   "end_elevation_m": 487.1210656639646,
   "start_xy": [
    2722838.0446853605,
    1114340.3587525934
   ],
   "end_xy": [
    2722883.517286834,
    1114359.9830659544
   ]
  },
  "max_100m": {
   "gradient_pct": 19.985857613341636,
   "start_distance_m": 54.0,
   "end_distance_m": 154.0,
   "midpoint_distance_m": 104.0,
   "start_elevation_m": 476.4182183802427,
   "end_elevation_m": 496.40407599358434,
   "start_xy": [
    2722838.0446853605,
    1114340.3587525934
   ],
   "end_xy": [
    2722930.2511611828,
    1114377.234486314
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -1.6459516859708856,
   "start_distance_m": 211.0,
   "end_distance_m": 216.0,
   "midpoint_distance_m": 213.5,
   "start_elevation_m": 502.0972203593176,
   "end_elevation_m": 502.01492277501904,
   "start_xy": [
    2722985.723223682,
    1114383.3272676924
   ],
   "end_xy": [
    2722990.6677084216,
    1114382.5842531193
   ]
  },
  "min_10m": {
   "gradient_pct": -1.6048124798697927,
   "start_distance_m": 206.0,
   "end_distance_m": 216.0,
   "midpoint_distance_m": 211.0,
   "start_elevation_m": 502.175404023006,
   "end_elevation_m": 502.01492277501904,
   "start_xy": [
    2722980.778738942,
    1114384.0702822655
   ],
   "end_xy": [
    2722990.6677084216,
    1114382.5842531193
   ]
  },
  "min_20m": {
   "gradient_pct": -0.981205036073618,
   "start_distance_m": 200.0,
   "end_distance_m": 220.0,
   "midpoint_distance_m": 210.0,
   "start_elevation_m": 502.1874591811884,
   "end_elevation_m": 501.99121817397366,
   "start_xy": [
    2722974.8453572537,
    1114384.9618997532
   ],
   "end_xy": [
    2722994.6546439542,
    1114382.3940666683
   ]
  },
  "min_25m": {
   "gradient_pct": -0.508209100099748,
   "start_distance_m": 198.0,
   "end_distance_m": 223.0,
   "midpoint_distance_m": 210.5,
   "start_elevation_m": 502.157370475308,
   "end_elevation_m": 502.0303182002831,
   "start_xy": [
    2722972.8675633576,
    1114385.2591055825
   ],
   "end_xy": [
    2722997.6379769365,
    1114382.6951268355
   ]
  },
  "min_50m": {
   "gradient_pct": 2.1815372073002663,
   "start_distance_m": 191.0,
   "end_distance_m": 241.0,
   "midpoint_distance_m": 216.0,
   "start_elevation_m": 501.74075166636345,
   "end_elevation_m": 502.8315202700136,
   "start_xy": [
    2722965.9266440403,
    1114386.1504498597
   ],
   "end_xy": [
    2723015.3861685437,
    1114385.6954092681
   ]
  },
  "min_100m": {
   "gradient_pct": 5.0991968651306365,
   "start_distance_m": 190.0,
   "end_distance_m": 290.0,
   "midpoint_distance_m": 240.0,
   "start_elevation_m": 501.656475965187,
   "end_elevation_m": 506.7556728303176,
   "start_xy": [
    2722964.928097276,
    1114386.1849760048
   ],
   "end_xy": [
    2723039.1285477825,
    1114404.9819630622
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 35.559116532897406,
   "start_distance_m": 3886.0,
   "end_distance_m": 3888.0,
   "midpoint_distance_m": 3887.0,
   "start_elevation_m": 786.317995399759,
   "end_elevation_m": 787.0291777304169,
   "start_xy": [
    2725012.4292854993,
    1114350.5038581546
   ],
   "end_xy": [
    2725014.4224616825,
    1114350.6689299687
   ]
  },
  "max_3m": {
   "gradient_pct": 37.37270464027157,
   "start_distance_m": 3886.0,
   "end_distance_m": 3889.0,
   "midpoint_distance_m": 3887.5,
   "start_elevation_m": 786.317995399759,
   "end_elevation_m": 787.4391765389671,
   "start_xy": [
    2725012.4292854993,
    1114350.5038581546
   ],
   "end_xy": [
    2725015.419049774,
    1114350.7514658757
   ]
  }
 },
 "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": [
   "short_window_divergence"
  ],
  "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_2722-1114_0.5_2056_5728.tif",
   "data/cache/ch/swissalti3d_2022_2723-1114_0.5_2056_5728.tif",
   "data/cache/ch/swissalti3d_2022_2724-1114_0.5_2056_5728.tif",
   "data/cache/ch/swissalti3d_2022_2725-1114_0.5_2056_5728.tif"
  ],
  "calculated_at": "2026-09-11T03:28:51+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": [
   "2722-1114",
   "2723-1114",
   "2724-1114",
   "2725-1114"
  ],
  "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": "Bellinzona",
  "county": "Ticino",
  "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)"
 }
}