{
 "ocl_version": "0.1.0",
 "name": "Discovered lane (47.1260, 8.1281)",
 "slug": "discovered-lane-47-1260-8-1281",
 "confidence": "A",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 44.903038721275834,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 306.0,
   "end_distance_m": 308.0,
   "start_elevation_m": 679.7170143121073,
   "end_elevation_m": 680.6150750865328,
   "min_gradient_pct": -5.827141243423739
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 38.90619077453342,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 305.0,
   "end_distance_m": 308.0,
   "start_elevation_m": 679.4478893632968,
   "end_elevation_m": 680.6150750865328,
   "min_gradient_pct": -1.7346686733276329
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 34.6299630716976,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 303.0,
   "end_distance_m": 308.0,
   "start_elevation_m": 678.8835769329479,
   "end_elevation_m": 680.6150750865328,
   "min_gradient_pct": 5.367399083372675
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 29.499790620699287,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 298.0,
   "end_distance_m": 308.0,
   "start_elevation_m": 677.6650960244629,
   "end_elevation_m": 680.6150750865328,
   "min_gradient_pct": 6.353704828397895
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 26.072908725946036,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 299.0,
   "end_distance_m": 319.0,
   "start_elevation_m": 677.8490912358928,
   "end_elevation_m": 683.063672981082,
   "min_gradient_pct": 8.809488676165529
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 24.641789332833014,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 293.0,
   "end_distance_m": 318.0,
   "start_elevation_m": 676.7177560942612,
   "end_elevation_m": 682.8782034274694,
   "min_gradient_pct": 9.719132054694455
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 20.495344903200703,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 269.0,
   "end_distance_m": 319.0,
   "start_elevation_m": 672.8160005294817,
   "end_elevation_m": 683.063672981082,
   "min_gradient_pct": 10.843893326341686
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 18.507453544909595,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 219.0,
   "end_distance_m": 319.0,
   "start_elevation_m": 664.5562194361725,
   "end_elevation_m": 683.063672981082,
   "min_gradient_pct": 12.450585021584175
  }
 ],
 "shape": {
  "ascent_concentration": 0.308,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 346.0,
  "shape_class": "sustained"
 },
 "length_m": 375.99999999980736,
 "start_elevation_m": 633.2170353808547,
 "end_elevation_m": 689.4461502440372,
 "endpoint_gain_m": 56.22911486318253,
 "overall_gradient_pct": 14.954551825322165,
 "accumulated_ascent_m": 56.538012289349126,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 34.6299630716976,
   "start_distance_m": 303.0,
   "end_distance_m": 308.0,
   "midpoint_distance_m": 305.5,
   "start_elevation_m": 678.8835769329479,
   "end_elevation_m": 680.6150750865328,
   "start_xy": [
    2652263.001366046,
    1219567.9446567483
   ],
   "end_xy": [
    2652262.8956237487,
    1219562.9467641285
   ]
  },
  "max_10m": {
   "gradient_pct": 29.499790620699287,
   "start_distance_m": 298.0,
   "end_distance_m": 308.0,
   "midpoint_distance_m": 303.0,
   "start_elevation_m": 677.6650960244629,
   "end_elevation_m": 680.6150750865328,
   "start_xy": [
    2652263.1434218567,
    1219572.942637745
   ],
   "end_xy": [
    2652262.8956237487,
    1219562.9467641285
   ]
  },
  "max_20m": {
   "gradient_pct": 26.072908725946036,
   "start_distance_m": 299.0,
   "end_distance_m": 319.0,
   "midpoint_distance_m": 309.0,
   "start_elevation_m": 677.8490912358928,
   "end_elevation_m": 683.063672981082,
   "start_xy": [
    2652263.115375279,
    1219571.9430311555
   ],
   "end_xy": [
    2652264.3497437234,
    1219552.0433005271
   ]
  },
  "max_25m": {
   "gradient_pct": 24.641789332833014,
   "start_distance_m": 293.0,
   "end_distance_m": 318.0,
   "midpoint_distance_m": 305.5,
   "start_elevation_m": 676.7177560942612,
   "end_elevation_m": 682.8782034274694,
   "start_xy": [
    2652263.2854213696,
    1219577.9406203462
   ],
   "end_xy": [
    2652264.2176538366,
    1219553.0345382423
   ]
  },
  "max_50m": {
   "gradient_pct": 20.495344903200703,
   "start_distance_m": 269.0,
   "end_distance_m": 319.0,
   "midpoint_distance_m": 294.0,
   "start_elevation_m": 672.8160005294817,
   "end_elevation_m": 683.063672981082,
   "start_xy": [
    2652264.8766106074,
    1219601.8828945556
   ],
   "end_xy": [
    2652264.3497437234,
    1219552.0433005271
   ]
  },
  "max_100m": {
   "gradient_pct": 18.507453544909595,
   "start_distance_m": 219.0,
   "end_distance_m": 319.0,
   "midpoint_distance_m": 269.0,
   "start_elevation_m": 664.5562194361725,
   "end_elevation_m": 683.063672981082,
   "start_xy": [
    2652280.957005181,
    1219648.486306001
   ],
   "end_xy": [
    2652264.3497437234,
    1219552.0433005271
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": 5.367399083372675,
   "start_distance_m": 345.0,
   "end_distance_m": 350.0,
   "midpoint_distance_m": 347.5,
   "start_elevation_m": 686.360130280197,
   "end_elevation_m": 686.6285002343657,
   "start_xy": [
    2652269.337135919,
    1219526.6070274205
   ],
   "end_xy": [
    2652270.805893045,
    1219521.8276185987
   ]
  },
  "min_10m": {
   "gradient_pct": 6.353704828397895,
   "start_distance_m": 345.0,
   "end_distance_m": 355.0,
   "midpoint_distance_m": 350.0,
   "start_elevation_m": 686.360130280197,
   "end_elevation_m": 686.9955007630368,
   "start_xy": [
    2652269.337135919,
    1219526.6070274205
   ],
   "end_xy": [
    2652272.274128987,
    1219517.0480499612
   ]
  },
  "min_20m": {
   "gradient_pct": 8.809488676165529,
   "start_distance_m": 337.0,
   "end_distance_m": 357.0,
   "midpoint_distance_m": 347.0,
   "start_elevation_m": 685.5341535364344,
   "end_elevation_m": 687.2960512716675,
   "start_xy": [
    2652266.988033431,
    1219534.254360681
   ],
   "end_xy": [
    2652272.861105919,
    1219515.1361249713
   ]
  },
  "min_25m": {
   "gradient_pct": 9.719132054694455,
   "start_distance_m": 337.0,
   "end_distance_m": 362.0,
   "midpoint_distance_m": 349.5,
   "start_elevation_m": 685.5341535364344,
   "end_elevation_m": 687.963936550108,
   "start_xy": [
    2652266.988033431,
    1219534.254360681
   ],
   "end_xy": [
    2652274.8181427876,
    1219510.563481656
   ]
  },
  "min_50m": {
   "gradient_pct": 10.843893326341686,
   "start_distance_m": 326.0,
   "end_distance_m": 376.0,
   "midpoint_distance_m": 351.0,
   "start_elevation_m": 684.0242035808664,
   "end_elevation_m": 689.4461502440372,
   "start_xy": [
    2652265.275618543,
    1219545.1048032132
   ],
   "end_xy": [
    2652281.8070123936,
    1219498.4327079502
   ]
  },
  "min_100m": {
   "gradient_pct": 12.450585021584175,
   "start_distance_m": 63.0,
   "end_distance_m": 163.0,
   "midpoint_distance_m": 113.0,
   "start_elevation_m": 642.9931056567208,
   "end_elevation_m": 655.443690678305,
   "start_xy": [
    2652425.5348477536,
    1219688.3147891199
   ],
   "end_xy": [
    2652326.1536416616,
    1219678.0640323705
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 44.903038721275834,
   "start_distance_m": 306.0,
   "end_distance_m": 308.0,
   "midpoint_distance_m": 307.0,
   "start_elevation_m": 679.7170143121073,
   "end_elevation_m": 680.6150750865328,
   "start_xy": [
    2652262.9154288694,
    1219564.9458881912
   ],
   "end_xy": [
    2652262.8956237487,
    1219562.9467641285
   ]
  },
  "max_3m": {
   "gradient_pct": 38.90619077453342,
   "start_distance_m": 305.0,
   "end_distance_m": 308.0,
   "midpoint_distance_m": 306.5,
   "start_elevation_m": 679.4478893632968,
   "end_elevation_m": 680.6150750865328,
   "start_xy": [
    2652262.944360617,
    1219565.945469554
   ],
   "end_xy": [
    2652262.8956237487,
    1219562.9467641285
   ]
  }
 },
 "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_2652-1219_0.5_2056_5728.tif"
  ],
  "calculated_at": "2026-09-15T04:06:13+00:00",
  "road_source": "OpenStreetMap (local PBF extract)",
  "road_attribution": "\u00a9 OpenStreetMap contributors, ODbL",
  "osm_pbf_path": "data/cache/pbf/switzerland-2026-09-10.osm.pbf",
  "osm_snapshot": "2026-09-09T20:21:20Z",
  "run_id": "retro-260914",
  "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": [
   "2652-1219"
  ],
  "route_cut_m": 376.0,
  "climb_origin": "discovered",
  "canopy_check": "unavailable \u2014 no surface model (DSM or point cloud) registered for this coverage",
  "structure_own_ways": "none \u2014 the route carried no way list; own decks unmasked",
  "license": "ODbL-1.0",
  "license_url": "https://howsteep.org/licensing"
 },
 "area": {
  "place": "Nottwil",
  "county": "Luzern",
  "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)"
 }
}