{
 "ocl_version": "0.1.0",
 "name": "Discovered lane (46.6663, 7.5377)",
 "slug": "discovered-lane-46-6663-7-5377",
 "confidence": "U",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 46.874296169187346,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 6480.0,
   "end_distance_m": 6482.0,
   "start_elevation_m": 1349.016350334794,
   "end_elevation_m": 1349.9538362581777,
   "min_gradient_pct": -22.98061054268601
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 41.32666510947729,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 6479.0,
   "end_distance_m": 6482.0,
   "start_elevation_m": 1348.7140363048934,
   "end_elevation_m": 1349.9538362581777,
   "min_gradient_pct": -19.32569635332584
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 33.60649266224755,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 6478.0,
   "end_distance_m": 6483.0,
   "start_elevation_m": 1348.4060078911698,
   "end_elevation_m": 1350.0863325242822,
   "min_gradient_pct": -8.854894554870043
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 23.538263097598247,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 6473.0,
   "end_distance_m": 6483.0,
   "start_elevation_m": 1347.7325062145223,
   "end_elevation_m": 1350.0863325242822,
   "min_gradient_pct": -4.175989731345453
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 18.13285792171996,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 6463.0,
   "end_distance_m": 6483.0,
   "start_elevation_m": 1346.4597609399382,
   "end_elevation_m": 1350.0863325242822,
   "min_gradient_pct": -0.39247218607556533
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 17.194827821687795,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 6458.0,
   "end_distance_m": 6483.0,
   "start_elevation_m": 1345.7876255688602,
   "end_elevation_m": 1350.0863325242822,
   "min_gradient_pct": 0.4334155695096342
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 15.537140010349049,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 6433.0,
   "end_distance_m": 6483.0,
   "start_elevation_m": 1342.3177625191076,
   "end_elevation_m": 1350.0863325242822,
   "min_gradient_pct": 2.0744313261784555
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 13.764479870524383,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 7068.0,
   "end_distance_m": 7168.0,
   "start_elevation_m": 1420.8557871821065,
   "end_elevation_m": 1434.6202670526309,
   "min_gradient_pct": 2.9344336941459233
  }
 ],
 "shape": {
  "ascent_concentration": 0.286,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 640.0,
  "shape_class": "sustained"
 },
 "length_m": 10489.996240502576,
 "start_elevation_m": 713.0630447929882,
 "end_elevation_m": 1786.879853222657,
 "endpoint_gain_m": 1073.8168084296688,
 "overall_gradient_pct": 10.236579535496784,
 "accumulated_ascent_m": 1079.9889202985332,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 33.60649266224755,
   "start_distance_m": 6478.0,
   "end_distance_m": 6483.0,
   "midpoint_distance_m": 6480.5,
   "start_elevation_m": 1348.4060078911698,
   "end_elevation_m": 1350.0863325242822,
   "start_xy": [
    2605928.139457209,
    1169214.7761642684
   ],
   "end_xy": [
    2605932.8948317557,
    1169216.3209661706
   ]
  },
  "max_10m": {
   "gradient_pct": 23.538263097598247,
   "start_distance_m": 6473.0,
   "end_distance_m": 6483.0,
   "midpoint_distance_m": 6478.0,
   "start_elevation_m": 1347.7325062145223,
   "end_elevation_m": 1350.0863325242822,
   "start_xy": [
    2605923.384082662,
    1169213.231362366
   ],
   "end_xy": [
    2605932.8948317557,
    1169216.3209661706
   ]
  },
  "max_20m": {
   "gradient_pct": 18.13285792171996,
   "start_distance_m": 6463.0,
   "end_distance_m": 6483.0,
   "midpoint_distance_m": 6473.0,
   "start_elevation_m": 1346.4597609399382,
   "end_elevation_m": 1350.0863325242822,
   "start_xy": [
    2605913.8733335678,
    1169210.1417585614
   ],
   "end_xy": [
    2605932.8948317557,
    1169216.3209661706
   ]
  },
  "max_25m": {
   "gradient_pct": 17.194827821687795,
   "start_distance_m": 6458.0,
   "end_distance_m": 6483.0,
   "midpoint_distance_m": 6470.5,
   "start_elevation_m": 1345.7876255688602,
   "end_elevation_m": 1350.0863325242822,
   "start_xy": [
    2605909.1179590207,
    1169208.5969566589
   ],
   "end_xy": [
    2605932.8948317557,
    1169216.3209661706
   ]
  },
  "max_50m": {
   "gradient_pct": 15.537140010349049,
   "start_distance_m": 6433.0,
   "end_distance_m": 6483.0,
   "midpoint_distance_m": 6458.0,
   "start_elevation_m": 1342.3177625191076,
   "end_elevation_m": 1350.0863325242822,
   "start_xy": [
    2605885.054947918,
    1169205.916953317
   ],
   "end_xy": [
    2605932.8948317557,
    1169216.3209661706
   ]
  },
  "max_100m": {
   "gradient_pct": 13.764479870524383,
   "start_distance_m": 7068.0,
   "end_distance_m": 7168.0,
   "midpoint_distance_m": 7118.0,
   "start_elevation_m": 1420.8557871821065,
   "end_elevation_m": 1434.6202670526309,
   "start_xy": [
    2606498.2275865944,
    1169238.0823148806
   ],
   "end_xy": [
    2606574.216254618,
    1169266.638213366
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -8.854894554870043,
   "start_distance_m": 5467.0,
   "end_distance_m": 5472.0,
   "midpoint_distance_m": 5469.5,
   "start_elevation_m": 1236.291692362834,
   "end_elevation_m": 1235.8489476350906,
   "start_xy": [
    2606546.160511374,
    1168845.1158094972
   ],
   "end_xy": [
    2606550.8735759184,
    1168843.4463716885
   ]
  },
  "min_10m": {
   "gradient_pct": -4.175989731345453,
   "start_distance_m": 5462.0,
   "end_distance_m": 5472.0,
   "midpoint_distance_m": 5467.0,
   "start_elevation_m": 1236.266546608225,
   "end_elevation_m": 1235.8489476350906,
   "start_xy": [
    2606541.447446829,
    1168846.785247306
   ],
   "end_xy": [
    2606550.8735759184,
    1168843.4463716885
   ]
  },
  "min_20m": {
   "gradient_pct": -0.39247218607556533,
   "start_distance_m": 5452.0,
   "end_distance_m": 5472.0,
   "midpoint_distance_m": 5462.0,
   "start_elevation_m": 1235.9274420723057,
   "end_elevation_m": 1235.8489476350906,
   "start_xy": [
    2606532.02131774,
    1168850.1241229237
   ],
   "end_xy": [
    2606550.8735759184,
    1168843.4463716885
   ]
  },
  "min_25m": {
   "gradient_pct": 0.4334155695096342,
   "start_distance_m": 5447.0,
   "end_distance_m": 5472.0,
   "midpoint_distance_m": 5459.5,
   "start_elevation_m": 1235.7405937427131,
   "end_elevation_m": 1235.8489476350906,
   "start_xy": [
    2606527.3074583006,
    1168851.7912260059
   ],
   "end_xy": [
    2606550.8735759184,
    1168843.4463716885
   ]
  },
  "min_50m": {
   "gradient_pct": 2.0744313261784555,
   "start_distance_m": 5422.0,
   "end_distance_m": 5472.0,
   "midpoint_distance_m": 5447.0,
   "start_elevation_m": 1234.8117319720013,
   "end_elevation_m": 1235.8489476350906,
   "start_xy": [
    2606503.500877219,
    1168859.3019189977
   ],
   "end_xy": [
    2606550.8735759184,
    1168843.4463716885
   ]
  },
  "min_100m": {
   "gradient_pct": 2.9344336941459233,
   "start_distance_m": 75.0,
   "end_distance_m": 175.0,
   "midpoint_distance_m": 125.0,
   "start_elevation_m": 717.9184718771445,
   "end_elevation_m": 720.8529055712904,
   "start_xy": [
    2608361.045532332,
    1167654.531333523
   ],
   "end_xy": [
    2608268.7447409094,
    1167628.3086825274
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 46.874296169187346,
   "start_distance_m": 6480.0,
   "end_distance_m": 6482.0,
   "midpoint_distance_m": 6481.0,
   "start_elevation_m": 1349.016350334794,
   "end_elevation_m": 1349.9538362581777,
   "start_xy": [
    2605930.0416070274,
    1169215.3940850294
   ],
   "end_xy": [
    2605931.9437568462,
    1169216.0120057901
   ]
  },
  "max_3m": {
   "gradient_pct": 41.32666510947729,
   "start_distance_m": 6479.0,
   "end_distance_m": 6482.0,
   "midpoint_distance_m": 6480.5,
   "start_elevation_m": 1348.7140363048934,
   "end_elevation_m": 1349.9538362581777,
   "start_xy": [
    2605929.090532118,
    1169215.0851246489
   ],
   "end_xy": [
    2605931.9437568462,
    1169216.0120057901
   ]
  }
 },
 "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": {
  "structure_suppression": {
   "masked_fraction": 0.002,
   "windows_resited": [],
   "windows_unresolved": []
  },
  "excluded_ranges_m": [
   [
    2501.0,
    2506.0
   ],
   [
    4509.0,
    4514.0
   ],
   [
    6570.0,
    6575.0
   ],
   [
    8533.0,
    8538.0
   ]
  ],
  "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_2025_2605-1168_0.5_2056_5728.tif",
   "data/cache/ch/swissalti3d_2025_2605-1169_0.5_2056_5728.tif",
   "data/cache/ch/swissalti3d_2025_2606-1168_0.5_2056_5728.tif",
   "data/cache/ch/swissalti3d_2025_2606-1169_0.5_2056_5728.tif",
   "data/cache/ch/swissalti3d_2025_2606-1170_0.5_2056_5728.tif",
   "data/cache/ch/swissalti3d_2025_2607-1167_0.5_2056_5728.tif",
   "data/cache/ch/swissalti3d_2025_2607-1168_0.5_2056_5728.tif",
   "data/cache/ch/swissalti3d_2025_2607-1169_0.5_2056_5728.tif",
   "data/cache/ch/swissalti3d_2025_2608-1167_0.5_2056_5728.tif",
   "data/cache/ch/swissalti3d_2025_2608-1168_0.5_2056_5728.tif"
  ],
  "calculated_at": "2026-09-11T01:39:45+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": [
   "2605-1168",
   "2605-1169",
   "2606-1168",
   "2606-1169",
   "2606-1170",
   "2607-1167",
   "2607-1168",
   "2607-1169",
   "2608-1167",
   "2608-1168"
  ],
  "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": "Erlenbach im Simmental",
  "county": "Bern/Berne",
  "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)"
 }
}