{
 "ocl_version": "0.1.0",
 "name": "Discovered lane (46.6396, 6.4018)",
 "slug": "discovered-lane-46-6396-6-4018",
 "confidence": "A",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 23.43020885136866,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 1121.0,
   "end_distance_m": 1123.0,
   "start_elevation_m": 970.7441667498858,
   "end_elevation_m": 971.2127709269132,
   "min_gradient_pct": -3.8030584777686727
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 21.99598351144611,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 1131.0,
   "end_distance_m": 1134.0,
   "start_elevation_m": 972.4277872237627,
   "end_elevation_m": 973.0876667291061,
   "min_gradient_pct": -2.6375829797189
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 20.723242494063925,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 1129.0,
   "end_distance_m": 1134.0,
   "start_elevation_m": 972.0515046044029,
   "end_elevation_m": 973.0876667291061,
   "min_gradient_pct": -2.33732504461841
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 18.755166687308247,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 271.0,
   "end_distance_m": 281.0,
   "start_elevation_m": 864.2914276019051,
   "end_elevation_m": 866.1669442706359,
   "min_gradient_pct": -1.8191788066326353
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 18.079379150531167,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 271.0,
   "end_distance_m": 291.0,
   "start_elevation_m": 864.2914276019051,
   "end_elevation_m": 867.9073034320113,
   "min_gradient_pct": -1.2394441617357188
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 17.955948921732215,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 271.0,
   "end_distance_m": 296.0,
   "start_elevation_m": 864.2914276019051,
   "end_elevation_m": 868.7804148323381,
   "min_gradient_pct": -0.6467073833150607
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 17.474409953355234,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 1085.0,
   "end_distance_m": 1135.0,
   "start_elevation_m": 964.4907624087574,
   "end_elevation_m": 973.227967385435,
   "min_gradient_pct": 2.4991981538978507
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 16.623315486965225,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 1034.0,
   "end_distance_m": 1134.0,
   "start_elevation_m": 956.4643512421409,
   "end_elevation_m": 973.0876667291061,
   "min_gradient_pct": 5.441890404977926
  }
 ],
 "shape": {
  "ascent_concentration": 0.333,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 208.0,
  "shape_class": "sustained"
 },
 "length_m": 1810.268710477738,
 "start_elevation_m": 837.3597690039044,
 "end_elevation_m": 1022.9778650668989,
 "endpoint_gain_m": 185.61809606299448,
 "overall_gradient_pct": 10.253621188315686,
 "accumulated_ascent_m": 186.02248544037343,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 20.723242494063925,
   "start_distance_m": 1129.0,
   "end_distance_m": 1134.0,
   "midpoint_distance_m": 1131.5,
   "start_elevation_m": 972.0515046044029,
   "end_elevation_m": 973.0876667291061,
   "start_xy": [
    2519879.504351514,
    1166486.8890387327
   ],
   "end_xy": [
    2519874.9997321647,
    1166489.0589245628
   ]
  },
  "max_10m": {
   "gradient_pct": 18.755166687308247,
   "start_distance_m": 271.0,
   "end_distance_m": 281.0,
   "midpoint_distance_m": 276.0,
   "start_elevation_m": 864.2914276019051,
   "end_elevation_m": 866.1669442706359,
   "start_xy": [
    2520465.2437955183,
    1165973.0434090008
   ],
   "end_xy": [
    2520458.8273191103,
    1165980.7054373934
   ]
  },
  "max_20m": {
   "gradient_pct": 18.079379150531167,
   "start_distance_m": 271.0,
   "end_distance_m": 291.0,
   "midpoint_distance_m": 281.0,
   "start_elevation_m": 864.2914276019051,
   "end_elevation_m": 867.9073034320113,
   "start_xy": [
    2520465.2437955183,
    1165973.0434090008
   ],
   "end_xy": [
    2520453.068557049,
    1165988.8808064687
   ]
  },
  "max_25m": {
   "gradient_pct": 17.955948921732215,
   "start_distance_m": 271.0,
   "end_distance_m": 296.0,
   "midpoint_distance_m": 283.5,
   "start_elevation_m": 864.2914276019051,
   "end_elevation_m": 868.7804148323381,
   "start_xy": [
    2520465.2437955183,
    1165973.0434090008
   ],
   "end_xy": [
    2520450.1891760183,
    1165992.9684910064
   ]
  },
  "max_50m": {
   "gradient_pct": 17.474409953355234,
   "start_distance_m": 1085.0,
   "end_distance_m": 1135.0,
   "midpoint_distance_m": 1110.0,
   "start_elevation_m": 964.4907624087574,
   "end_elevation_m": 973.227967385435,
   "start_xy": [
    2519919.1450017896,
    1166467.794043427
   ],
   "end_xy": [
    2519874.0988082946,
    1166489.492901729
   ]
  },
  "max_100m": {
   "gradient_pct": 16.623315486965225,
   "start_distance_m": 1034.0,
   "end_distance_m": 1134.0,
   "midpoint_distance_m": 1084.0,
   "start_elevation_m": 956.4643512421409,
   "end_elevation_m": 973.0876667291061,
   "start_xy": [
    2519965.9266988845,
    1166447.5029449374
   ],
   "end_xy": [
    2519874.9997321647,
    1166489.0589245628
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -2.33732504461841,
   "start_distance_m": 1797.0,
   "end_distance_m": 1802.0,
   "midpoint_distance_m": 1799.5,
   "start_elevation_m": 1023.2040486092259,
   "end_elevation_m": 1023.087182356995,
   "start_xy": [
    2519282.1126055103,
    1166213.7107809773
   ],
   "end_xy": [
    2519277.740644376,
    1166211.284682084
   ]
  },
  "min_10m": {
   "gradient_pct": -1.8191788066326353,
   "start_distance_m": 1798.0,
   "end_distance_m": 1808.0,
   "midpoint_distance_m": 1803.0,
   "start_elevation_m": 1023.1821677290363,
   "end_elevation_m": 1023.0002498483731,
   "start_xy": [
    2519281.2382132835,
    1166213.2255611985
   ],
   "end_xy": [
    2519272.7248282656,
    1166208.0196947851
   ]
  },
  "min_20m": {
   "gradient_pct": -1.2394441617357188,
   "start_distance_m": 1790.0,
   "end_distance_m": 1810.0,
   "midpoint_distance_m": 1800.0,
   "start_elevation_m": 1023.223091428271,
   "end_elevation_m": 1022.9752025959239,
   "start_xy": [
    2519288.2333510984,
    1166217.1073194274
   ],
   "end_xy": [
    2519271.131122693,
    1166206.811347754
   ]
  },
  "min_25m": {
   "gradient_pct": -0.6467073833150607,
   "start_distance_m": 1785.0,
   "end_distance_m": 1810.0,
   "midpoint_distance_m": 1797.5,
   "start_elevation_m": 1023.1368794417526,
   "end_elevation_m": 1022.9752025959239,
   "start_xy": [
    2519292.605312233,
    1166219.5334183204
   ],
   "end_xy": [
    2519271.131122693,
    1166206.811347754
   ]
  },
  "min_50m": {
   "gradient_pct": 2.4991981538978507,
   "start_distance_m": 1760.0,
   "end_distance_m": 1810.0,
   "midpoint_distance_m": 1785.0,
   "start_elevation_m": 1021.7256035189749,
   "end_elevation_m": 1022.9752025959239,
   "start_xy": [
    2519314.4002519404,
    1166231.7765469926
   ],
   "end_xy": [
    2519271.131122693,
    1166206.811347754
   ]
  },
  "min_100m": {
   "gradient_pct": 5.441890404977926,
   "start_distance_m": 1345.0,
   "end_distance_m": 1445.0,
   "midpoint_distance_m": 1395.0,
   "start_elevation_m": 993.8289478546976,
   "end_elevation_m": 999.2708382596755,
   "start_xy": [
    2519685.657436005,
    1166409.7932286193
   ],
   "end_xy": [
    2519593.1027616607,
    1166372.7394851819
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 23.43020885136866,
   "start_distance_m": 1121.0,
   "end_distance_m": 1123.0,
   "midpoint_distance_m": 1122.0,
   "start_elevation_m": 970.7441667498858,
   "end_elevation_m": 971.2127709269132,
   "start_xy": [
    2519886.7117424733,
    1166483.4172214044
   ],
   "end_xy": [
    2519884.9098947337,
    1166484.2851757365
   ]
  },
  "max_3m": {
   "gradient_pct": 21.99598351144611,
   "start_distance_m": 1131.0,
   "end_distance_m": 1134.0,
   "midpoint_distance_m": 1132.5,
   "start_elevation_m": 972.4277872237627,
   "end_elevation_m": 973.0876667291061,
   "start_xy": [
    2519877.7025037743,
    1166487.7569930647
   ],
   "end_xy": [
    2519874.9997321647,
    1166489.0589245628
   ]
  }
 },
 "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": []
 },
 "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_2021_2519-1166_0.5_2056_5728.tif",
   "data/cache/ch/swissalti3d_2021_2520-1165_0.5_2056_5728.tif",
   "data/cache/ch/swissalti3d_2021_2520-1166_0.5_2056_5728.tif"
  ],
  "calculated_at": "2026-09-11T02:03:56+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": [
   "2519-1166",
   "2520-1165",
   "2520-1166"
  ],
  "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": "L'Isle",
  "county": "Vaud",
  "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)"
 }
}