{
 "ocl_version": "0.1.0",
 "name": "Discovered lane (46.6390, 7.7392)",
 "slug": "discovered-lane-46-6390-7-7392",
 "confidence": "A",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 24.421939790136094,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 59.0,
   "end_distance_m": 61.0,
   "start_elevation_m": 1051.9051193770783,
   "end_elevation_m": 1052.393558172881,
   "min_gradient_pct": -1.7370455655964179
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 23.61968592940684,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 59.0,
   "end_distance_m": 62.0,
   "start_elevation_m": 1051.9051193770783,
   "end_elevation_m": 1052.6137099549605,
   "min_gradient_pct": -2.214225867260211
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 22.32604656798685,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 59.0,
   "end_distance_m": 64.0,
   "start_elevation_m": 1051.9051193770783,
   "end_elevation_m": 1053.0214217054777,
   "min_gradient_pct": -0.1199322965430838
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 21.98556330554311,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 51.0,
   "end_distance_m": 61.0,
   "start_elevation_m": 1050.1950018423267,
   "end_elevation_m": 1052.393558172881,
   "min_gradient_pct": 3.0949043111422725
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 21.69166400346967,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 42.0,
   "end_distance_m": 62.0,
   "start_elevation_m": 1048.2753771542666,
   "end_elevation_m": 1052.6137099549605,
   "min_gradient_pct": 4.22958491357349
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 21.693415916765844,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 40.0,
   "end_distance_m": 65.0,
   "start_elevation_m": 1047.8327885264648,
   "end_elevation_m": 1053.2561425056563,
   "min_gradient_pct": 4.894258404442553
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 21.026327886078434,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 27.0,
   "end_distance_m": 77.0,
   "start_elevation_m": 1045.226412658939,
   "end_elevation_m": 1055.7395766019781,
   "min_gradient_pct": 6.014337690276534
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 17.70089039058871,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 11.0,
   "end_distance_m": 111.0,
   "start_elevation_m": 1042.7825401939804,
   "end_elevation_m": 1060.483430584569,
   "min_gradient_pct": 7.570750482950189
  }
 ],
 "shape": {
  "ascent_concentration": 0.306,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 314.0,
  "shape_class": "sustained"
 },
 "length_m": 1937.4536635355917,
 "start_elevation_m": 1041.5096459692204,
 "end_elevation_m": 1268.0373997880752,
 "endpoint_gain_m": 226.52775381885476,
 "overall_gradient_pct": 11.692034657772004,
 "accumulated_ascent_m": 226.6857750704587,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 22.32604656798685,
   "start_distance_m": 59.0,
   "end_distance_m": 64.0,
   "midpoint_distance_m": 61.5,
   "start_elevation_m": 1051.9051193770783,
   "end_elevation_m": 1053.0214217054777,
   "start_xy": [
    2622165.3255709265,
    1165963.5289357752
   ],
   "end_xy": [
    2622169.2695553773,
    1165960.467886707
   ]
  },
  "max_10m": {
   "gradient_pct": 21.98556330554311,
   "start_distance_m": 51.0,
   "end_distance_m": 61.0,
   "midpoint_distance_m": 56.0,
   "start_elevation_m": 1050.1950018423267,
   "end_elevation_m": 1052.393558172881,
   "start_xy": [
    2622158.6722534075,
    1165967.971160287
   ],
   "end_xy": [
    2622166.9836882856,
    1165962.410773857
   ]
  },
  "max_20m": {
   "gradient_pct": 21.69166400346967,
   "start_distance_m": 42.0,
   "end_distance_m": 62.0,
   "midpoint_distance_m": 52.0,
   "start_elevation_m": 1048.2753771542666,
   "end_elevation_m": 1052.6137099549605,
   "start_xy": [
    2622150.611293827,
    1165971.9089114086
   ],
   "end_xy": [
    2622167.745966596,
    1165961.7635244695
   ]
  },
  "max_25m": {
   "gradient_pct": 21.693415916765844,
   "start_distance_m": 40.0,
   "end_distance_m": 65.0,
   "midpoint_distance_m": 52.5,
   "start_elevation_m": 1047.8327885264648,
   "end_elevation_m": 1053.2561425056563,
   "start_xy": [
    2622148.6986457095,
    1165972.4619374808
   ],
   "end_xy": [
    2622170.031833774,
    1165959.8206374205
   ]
  },
  "max_50m": {
   "gradient_pct": 21.026327886078434,
   "start_distance_m": 27.0,
   "end_distance_m": 77.0,
   "midpoint_distance_m": 52.0,
   "start_elevation_m": 1045.226412658939,
   "end_elevation_m": 1055.7395766019781,
   "start_xy": [
    2622135.920788316,
    1165974.8549165307
   ],
   "end_xy": [
    2622179.1754706437,
    1165952.0492913367
   ]
  },
  "max_100m": {
   "gradient_pct": 17.70089039058871,
   "start_distance_m": 11.0,
   "end_distance_m": 111.0,
   "midpoint_distance_m": 61.0,
   "start_elevation_m": 1042.7825401939804,
   "end_elevation_m": 1060.483430584569,
   "start_xy": [
    2622121.01508959,
    1165980.5009612555
   ],
   "end_xy": [
    2622211.547651301,
    1165943.4052321806
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -0.1199322965430838,
   "start_distance_m": 375.0,
   "end_distance_m": 380.0,
   "midpoint_distance_m": 377.5,
   "start_elevation_m": 1096.8215458966165,
   "end_elevation_m": 1096.8155492817893,
   "start_xy": [
    2622302.6178606874,
    1166052.7921772085
   ],
   "end_xy": [
    2622307.5629558093,
    1166052.175291973
   ]
  },
  "min_10m": {
   "gradient_pct": 3.0949043111422725,
   "start_distance_m": 1648.0,
   "end_distance_m": 1658.0,
   "midpoint_distance_m": 1653.0,
   "start_elevation_m": 1237.3316387831642,
   "end_elevation_m": 1237.6411292142784,
   "start_xy": [
    2623020.1605573767,
    1165315.3879749393
   ],
   "end_xy": [
    2623029.523694721,
    1165317.463191323
   ]
  },
  "min_20m": {
   "gradient_pct": 4.22958491357349,
   "start_distance_m": 1646.0,
   "end_distance_m": 1666.0,
   "midpoint_distance_m": 1656.0,
   "start_elevation_m": 1237.2057996209767,
   "end_elevation_m": 1238.0517166036914,
   "start_xy": [
    2623018.18582133,
    1165315.6544267405
   ],
   "end_xy": [
    2623032.806093296,
    1165324.4963475477
   ]
  },
  "min_25m": {
   "gradient_pct": 4.894258404442553,
   "start_distance_m": 1641.0,
   "end_distance_m": 1666.0,
   "midpoint_distance_m": 1653.5,
   "start_elevation_m": 1236.8281520025807,
   "end_elevation_m": 1238.0517166036914,
   "start_xy": [
    2623014.6965896958,
    1165319.2243664167
   ],
   "end_xy": [
    2623032.806093296,
    1165324.4963475477
   ]
  },
  "min_50m": {
   "gradient_pct": 6.014337690276534,
   "start_distance_m": 1631.0,
   "end_distance_m": 1681.0,
   "midpoint_distance_m": 1656.0,
   "start_elevation_m": 1235.9841764695373,
   "end_elevation_m": 1238.9913453146755,
   "start_xy": [
    2623012.8444698863,
    1165328.7409025468
   ],
   "end_xy": [
    2623033.9113557306,
    1165339.3723320453
   ]
  },
  "min_100m": {
   "gradient_pct": 7.570750482950189,
   "start_distance_m": 1581.0,
   "end_distance_m": 1681.0,
   "midpoint_distance_m": 1631.0,
   "start_elevation_m": 1231.4205948317253,
   "end_elevation_m": 1238.9913453146755,
   "start_xy": [
    2622998.8031304316,
    1165376.3627970386
   ],
   "end_xy": [
    2623033.9113557306,
    1165339.3723320453
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 24.421939790136094,
   "start_distance_m": 59.0,
   "end_distance_m": 61.0,
   "midpoint_distance_m": 60.0,
   "start_elevation_m": 1051.9051193770783,
   "end_elevation_m": 1052.393558172881,
   "start_xy": [
    2622165.3255709265,
    1165963.5289357752
   ],
   "end_xy": [
    2622166.9836882856,
    1165962.410773857
   ]
  },
  "max_3m": {
   "gradient_pct": 23.61968592940684,
   "start_distance_m": 59.0,
   "end_distance_m": 62.0,
   "midpoint_distance_m": 60.5,
   "start_elevation_m": 1051.9051193770783,
   "end_elevation_m": 1052.6137099549605,
   "start_xy": [
    2622165.3255709265,
    1165963.5289357752
   ],
   "end_xy": [
    2622167.745966596,
    1165961.7635244695
   ]
  }
 },
 "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_2025_2622-1165_0.5_2056_5728.tif",
   "data/cache/ch/swissalti3d_2025_2622-1166_0.5_2056_5728.tif",
   "data/cache/ch/swissalti3d_2025_2623-1165_0.5_2056_5728.tif"
  ],
  "calculated_at": "2026-09-15T21:41:29+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-260915-dogleg-all",
  "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": [
   "2622-1165",
   "2622-1166",
   "2623-1165"
  ],
  "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": "Aeschi bei Spiez",
  "county": "Bern/Berne",
  "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)"
 }
}