{
 "ocl_version": "0.1.0",
 "name": "Discovered lane (46.8665, 8.6921)",
 "slug": "discovered-lane-46-8665-8-6921",
 "confidence": "A",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 33.701473024865436,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 470.0,
   "end_distance_m": 472.0,
   "start_elevation_m": 910.6481636395511,
   "end_elevation_m": 911.3221931000484,
   "min_gradient_pct": -10.782972885760955
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 30.894876111422793,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 737.0,
   "end_distance_m": 740.0,
   "start_elevation_m": 964.5934385626621,
   "end_elevation_m": 965.5202848460048,
   "min_gradient_pct": -10.361964468328702
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 30.24629461557197,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 548.0,
   "end_distance_m": 553.0,
   "start_elevation_m": 930.1967682150777,
   "end_elevation_m": 931.7090829458563,
   "min_gradient_pct": -7.247043584673065
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 29.322989005286217,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 544.0,
   "end_distance_m": 554.0,
   "start_elevation_m": 929.0713164967958,
   "end_elevation_m": 932.0036153973244,
   "min_gradient_pct": 0.42213495879764196
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 28.133962336924014,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 539.0,
   "end_distance_m": 559.0,
   "start_elevation_m": 927.7413484748897,
   "end_elevation_m": 933.3681409422745,
   "min_gradient_pct": 3.371366568625831
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 27.66874359933263,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 543.0,
   "end_distance_m": 568.0,
   "start_elevation_m": 928.7779663259226,
   "end_elevation_m": 935.6951522257558,
   "min_gradient_pct": 3.873886669735384
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 26.800941946776447,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 520.0,
   "end_distance_m": 570.0,
   "start_elevation_m": 922.8235766587601,
   "end_elevation_m": 936.2240476321483,
   "min_gradient_pct": 7.037753949540502
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 25.575883992597255,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 470.0,
   "end_distance_m": 570.0,
   "start_elevation_m": 910.6481636395511,
   "end_elevation_m": 936.2240476321483,
   "min_gradient_pct": 12.367926417473996
  }
 ],
 "shape": {
  "ascent_concentration": 0.283,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 577.0,
  "shape_class": "sustained"
 },
 "length_m": 954.5701025768764,
 "start_elevation_m": 822.023203503403,
 "end_elevation_m": 1006.2735865888894,
 "endpoint_gain_m": 184.25038308548642,
 "overall_gradient_pct": 19.301922675778314,
 "accumulated_ascent_m": 184.61273526472007,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 30.24629461557197,
   "start_distance_m": 548.0,
   "end_distance_m": 553.0,
   "midpoint_distance_m": 550.5,
   "start_elevation_m": 930.1967682150777,
   "end_elevation_m": 931.7090829458563,
   "start_xy": [
    2695595.245037103,
    1191281.861282463
   ],
   "end_xy": [
    2695597.822817889,
    1191277.5770035016
   ]
  },
  "max_10m": {
   "gradient_pct": 29.322989005286217,
   "start_distance_m": 544.0,
   "end_distance_m": 554.0,
   "midpoint_distance_m": 549.0,
   "start_elevation_m": 929.0713164967958,
   "end_elevation_m": 932.0036153973244,
   "start_xy": [
    2695593.182812474,
    1191285.2887056319
   ],
   "end_xy": [
    2695598.3383740466,
    1191276.7201477094
   ]
  },
  "max_20m": {
   "gradient_pct": 28.133962336924014,
   "start_distance_m": 539.0,
   "end_distance_m": 559.0,
   "midpoint_distance_m": 549.0,
   "start_elevation_m": 927.7413484748897,
   "end_elevation_m": 933.3681409422745,
   "start_xy": [
    2695590.6369450954,
    1191289.5920243969
   ],
   "end_xy": [
    2695600.978673628,
    1191272.4746610334
   ]
  },
  "max_25m": {
   "gradient_pct": 27.66874359933263,
   "start_distance_m": 543.0,
   "end_distance_m": 568.0,
   "midpoint_distance_m": 555.5,
   "start_elevation_m": 928.7779663259226,
   "end_elevation_m": 935.6951522257558,
   "start_xy": [
    2695592.673511468,
    1191286.149293299
   ],
   "end_xy": [
    2695605.8281051256,
    1191264.8929056856
   ]
  },
  "max_50m": {
   "gradient_pct": 26.800941946776447,
   "start_distance_m": 520.0,
   "end_distance_m": 570.0,
   "midpoint_distance_m": 545.0,
   "start_elevation_m": 922.8235766587601,
   "end_elevation_m": 936.2240476321483,
   "start_xy": [
    2695581.363798857,
    1191306.1585842909
   ],
   "end_xy": [
    2695606.8733242685,
    1191263.1890351553
   ]
  },
  "max_100m": {
   "gradient_pct": 25.575883992597255,
   "start_distance_m": 470.0,
   "end_distance_m": 570.0,
   "midpoint_distance_m": 520.0,
   "start_elevation_m": 910.6481636395511,
   "end_elevation_m": 936.2240476321483,
   "start_xy": [
    2695565.779642549,
    1191353.4825098254
   ],
   "end_xy": [
    2695606.8733242685,
    1191263.1890351553
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -7.247043584673065,
   "start_distance_m": 575.0,
   "end_distance_m": 580.0,
   "midpoint_distance_m": 577.5,
   "start_elevation_m": 936.9963725115625,
   "end_elevation_m": 936.6340203323289,
   "start_xy": [
    2695609.2374259797,
    1191258.783240891
   ],
   "end_xy": [
    2695610.7472806266,
    1191254.0612599817
   ]
  },
  "min_10m": {
   "gradient_pct": 0.42213495879764196,
   "start_distance_m": 574.0,
   "end_distance_m": 584.0,
   "midpoint_distance_m": 579.0,
   "start_elevation_m": 936.9756545894853,
   "end_elevation_m": 937.0178680853651,
   "start_xy": [
    2695608.7646056376,
    1191259.664399744
   ],
   "end_xy": [
    2695611.606563925,
    1191250.1546460753
   ]
  },
  "min_20m": {
   "gradient_pct": 3.371366568625831,
   "start_distance_m": 574.0,
   "end_distance_m": 594.0,
   "midpoint_distance_m": 584.0,
   "start_elevation_m": 936.9756545894853,
   "end_elevation_m": 937.6499279032105,
   "start_xy": [
    2695608.7646056376,
    1191259.664399744
   ],
   "end_xy": [
    2695616.3667126754,
    1191241.414238911
   ]
  },
  "min_25m": {
   "gradient_pct": 3.873886669735384,
   "start_distance_m": 574.0,
   "end_distance_m": 599.0,
   "midpoint_distance_m": 586.5,
   "start_elevation_m": 936.9756545894853,
   "end_elevation_m": 937.9441262569192,
   "start_xy": [
    2695608.7646056376,
    1191259.664399744
   ],
   "end_xy": [
    2695618.6887017847,
    1191236.9888392622
   ]
  },
  "min_50m": {
   "gradient_pct": 7.037753949540502,
   "start_distance_m": 574.0,
   "end_distance_m": 624.0,
   "midpoint_distance_m": 599.0,
   "start_elevation_m": 936.9756545894853,
   "end_elevation_m": 940.4945315642556,
   "start_xy": [
    2695608.7646056376,
    1191259.664399744
   ],
   "end_xy": [
    2695627.458107511,
    1191213.6899789553
   ]
  },
  "min_100m": {
   "gradient_pct": 12.367926417473996,
   "start_distance_m": 571.0,
   "end_distance_m": 671.0,
   "midpoint_distance_m": 621.0,
   "start_elevation_m": 936.4476909047552,
   "end_elevation_m": 948.8156173222292,
   "start_xy": [
    2695607.3461446106,
    1191262.3078763026
   ],
   "end_xy": [
    2695621.524917071,
    1191167.6217605122
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 33.701473024865436,
   "start_distance_m": 470.0,
   "end_distance_m": 472.0,
   "midpoint_distance_m": 471.0,
   "start_elevation_m": 910.6481636395511,
   "end_elevation_m": 911.3221931000484,
   "start_xy": [
    2695565.779642549,
    1191353.4825098254
   ],
   "end_xy": [
    2695566.5225638887,
    1191351.6256124445
   ]
  },
  "max_3m": {
   "gradient_pct": 30.894876111422793,
   "start_distance_m": 737.0,
   "end_distance_m": 740.0,
   "midpoint_distance_m": 738.5,
   "start_elevation_m": 964.5934385626621,
   "end_elevation_m": 965.5202848460048,
   "start_xy": [
    2695644.1686525173,
    1191106.2915912443
   ],
   "end_xy": [
    2695645.4848509403,
    1191103.6103655493
   ]
  }
 },
 "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_2695-1190_0.5_2056_5728.tif",
   "data/cache/ch/swissalti3d_2022_2695-1191_0.5_2056_5728.tif"
  ],
  "calculated_at": "2026-09-10T20:25:01+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": [
   "2695-1190",
   "2695-1191"
  ],
  "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": "B\u00fcrglen (UR)",
  "county": "Uri",
  "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)"
 }
}