{
 "ocl_version": "0.1.0",
 "name": "Discovered lane (47.0316, 8.0014)",
 "slug": "discovered-lane-47-0316-8-0014",
 "confidence": "A",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 19.90017094847758,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 1085.0,
   "end_distance_m": 1087.0,
   "start_elevation_m": 968.4296737718137,
   "end_elevation_m": 968.8276771907832,
   "min_gradient_pct": -8.368160129435864
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 18.89096793834521,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 1076.0,
   "end_distance_m": 1079.0,
   "start_elevation_m": 966.9344137924038,
   "end_elevation_m": 967.5011428305542,
   "min_gradient_pct": -8.175638181175296
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 18.771020033045716,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 1073.0,
   "end_distance_m": 1078.0,
   "start_elevation_m": 966.3853104068738,
   "end_elevation_m": 967.3238614085261,
   "min_gradient_pct": -7.589778359590582
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 17.927450087566967,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 1069.0,
   "end_distance_m": 1079.0,
   "start_elevation_m": 965.7083978217975,
   "end_elevation_m": 967.5011428305542,
   "min_gradient_pct": -7.4792704722608505
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 17.357552041469262,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 1066.0,
   "end_distance_m": 1086.0,
   "start_elevation_m": 965.1913806914913,
   "end_elevation_m": 968.6628910997852,
   "min_gradient_pct": -6.5943208610627835
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 17.15744298094569,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 1062.0,
   "end_distance_m": 1087.0,
   "start_elevation_m": 964.5383164455468,
   "end_elevation_m": 968.8276771907832,
   "min_gradient_pct": -5.749065967952902
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 16.31653604322787,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 1056.0,
   "end_distance_m": 1106.0,
   "start_elevation_m": 963.6295114032896,
   "end_elevation_m": 971.7877794249035,
   "min_gradient_pct": -2.842873085163774
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 15.057159967009966,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 1054.0,
   "end_distance_m": 1154.0,
   "start_elevation_m": 963.3535975808138,
   "end_elevation_m": 978.4107575478238,
   "min_gradient_pct": 0.2829212284386813
  }
 ],
 "shape": {
  "ascent_concentration": 0.311,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 477.0,
  "shape_class": "sustained"
 },
 "length_m": 1834.1714063781214,
 "start_elevation_m": 858.9313352929687,
 "end_elevation_m": 1044.6299814062477,
 "endpoint_gain_m": 185.69864611327898,
 "overall_gradient_pct": 10.124388891219935,
 "accumulated_ascent_m": 188.7053118705095,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 18.771020033045716,
   "start_distance_m": 1073.0,
   "end_distance_m": 1078.0,
   "midpoint_distance_m": 1075.5,
   "start_elevation_m": 966.3853104068738,
   "end_elevation_m": 967.3238614085261,
   "start_xy": [
    2642550.512647459,
    1209114.3260070654
   ],
   "end_xy": [
    2642550.7990735546,
    1209119.317796333
   ]
  },
  "max_10m": {
   "gradient_pct": 17.927450087566967,
   "start_distance_m": 1069.0,
   "end_distance_m": 1079.0,
   "midpoint_distance_m": 1074.0,
   "start_elevation_m": 965.7083978217975,
   "end_elevation_m": 967.5011428305542,
   "start_xy": [
    2642550.425405937,
    1209110.337432243
   ],
   "end_xy": [
    2642550.856358774,
    1209120.3161541864
   ]
  },
  "max_20m": {
   "gradient_pct": 17.357552041469262,
   "start_distance_m": 1066.0,
   "end_distance_m": 1086.0,
   "midpoint_distance_m": 1076.0,
   "start_elevation_m": 965.1913806914913,
   "end_elevation_m": 968.6628910997852,
   "start_xy": [
    2642550.8016359922,
    1209107.3611172487
   ],
   "end_xy": [
    2642551.2816631487,
    1209127.303214408
   ]
  },
  "max_25m": {
   "gradient_pct": 17.15744298094569,
   "start_distance_m": 1062.0,
   "end_distance_m": 1087.0,
   "midpoint_distance_m": 1074.5,
   "start_elevation_m": 964.5383164455468,
   "end_elevation_m": 968.8276771907832,
   "start_xy": [
    2642551.3032760667,
    1209103.3926972563
   ],
   "end_xy": [
    2642551.343039622,
    1209128.3013290951
   ]
  },
  "max_50m": {
   "gradient_pct": 16.31653604322787,
   "start_distance_m": 1056.0,
   "end_distance_m": 1106.0,
   "midpoint_distance_m": 1081.0,
   "start_elevation_m": 963.6295114032896,
   "end_elevation_m": 971.7877794249035,
   "start_xy": [
    2642552.2184088323,
    1209097.4687365773
   ],
   "end_xy": [
    2642552.5091926097,
    1209147.2655081495
   ]
  },
  "max_100m": {
   "gradient_pct": 15.057159967009966,
   "start_distance_m": 1054.0,
   "end_distance_m": 1154.0,
   "midpoint_distance_m": 1104.0,
   "start_elevation_m": 963.3535975808138,
   "end_elevation_m": 978.4107575478238,
   "start_xy": [
    2642552.6610230515,
    1209095.5183282476
   ],
   "end_xy": [
    2642557.0586652765,
    1209195.0372336595
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -7.589778359590582,
   "start_distance_m": 25.0,
   "end_distance_m": 30.0,
   "midpoint_distance_m": 27.5,
   "start_elevation_m": 858.8709048831256,
   "end_elevation_m": 858.4914159651461,
   "start_xy": [
    2642987.6264549363,
    1208862.847714719
   ],
   "end_xy": [
    2642989.5171503345,
    1208867.476169918
   ]
  },
  "min_10m": {
   "gradient_pct": -7.4792704722608505,
   "start_distance_m": 27.0,
   "end_distance_m": 37.0,
   "midpoint_distance_m": 32.0,
   "start_elevation_m": 858.7366851105813,
   "end_elevation_m": 857.9887580633552,
   "start_xy": [
    2642988.3974513314,
    1208864.6931318962
   ],
   "end_xy": [
    2642991.713745492,
    1208874.1109775202
   ]
  },
  "min_20m": {
   "gradient_pct": -6.5943208610627835,
   "start_distance_m": 22.0,
   "end_distance_m": 42.0,
   "midpoint_distance_m": 32.0,
   "start_elevation_m": 859.050088060815,
   "end_elevation_m": 857.7312238886025,
   "start_xy": [
    2642986.469960344,
    1208860.0795889525
   ],
   "end_xy": [
    2642992.431894613,
    1208879.0578953405
   ]
  },
  "min_25m": {
   "gradient_pct": -5.749065967952902,
   "start_distance_m": 19.0,
   "end_distance_m": 44.0,
   "midpoint_distance_m": 31.5,
   "start_elevation_m": 859.1104565204884,
   "end_elevation_m": 857.6731900285001,
   "start_xy": [
    2642985.3134657517,
    1208857.3114631863
   ],
   "end_xy": [
    2642992.5352158872,
    1208881.0541026236
   ]
  },
  "min_50m": {
   "gradient_pct": -2.842873085163774,
   "start_distance_m": 1784.0,
   "end_distance_m": 1834.0,
   "midpoint_distance_m": 1809.0,
   "start_elevation_m": 1046.0577828558273,
   "end_elevation_m": 1044.6363463132454,
   "start_xy": [
    2642527.8752946537,
    1209644.2738340758
   ],
   "end_xy": [
    2642491.6676431103,
    1209678.7444068817
   ]
  },
  "min_100m": {
   "gradient_pct": 0.2829212284386813,
   "start_distance_m": 1734.0,
   "end_distance_m": 1834.0,
   "midpoint_distance_m": 1784.0,
   "start_elevation_m": 1044.3534250848068,
   "end_elevation_m": 1044.6363463132454,
   "start_xy": [
    2642558.4685915485,
    1209604.972983493
   ],
   "end_xy": [
    2642491.6676431103,
    1209678.7444068817
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 19.90017094847758,
   "start_distance_m": 1085.0,
   "end_distance_m": 1087.0,
   "midpoint_distance_m": 1086.0,
   "start_elevation_m": 968.4296737718137,
   "end_elevation_m": 968.8276771907832,
   "start_xy": [
    2642551.2202866757,
    1209126.305099721
   ],
   "end_xy": [
    2642551.343039622,
    1209128.3013290951
   ]
  },
  "max_3m": {
   "gradient_pct": 18.89096793834521,
   "start_distance_m": 1076.0,
   "end_distance_m": 1079.0,
   "midpoint_distance_m": 1077.5,
   "start_elevation_m": 966.9344137924038,
   "end_elevation_m": 967.5011428305542,
   "start_xy": [
    2642550.684503116,
    1209117.321080626
   ],
   "end_xy": [
    2642550.856358774,
    1209120.3161541864
   ]
  }
 },
 "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": [
   "descends_at_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_2642-1208_0.5_2056_5728.tif",
   "data/cache/ch/swissalti3d_2022_2642-1209_0.5_2056_5728.tif",
   "data/cache/ch/swissalti3d_2022_2643-1208_0.5_2056_5728.tif",
   "data/cache/ch/swissalti3d_2022_2643-1209_0.5_2056_5728.tif"
  ],
  "calculated_at": "2026-09-10T20:18:57+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": [
   "2642-1208",
   "2642-1209",
   "2643-1208",
   "2643-1209"
  ],
  "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": "Menznau",
  "county": "Luzern",
  "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)"
 }
}