{
 "ocl_version": "0.1.0",
 "name": "Discovered lane (47.3948, 7.8437)",
 "slug": "discovered-lane-47-3948-7-8437",
 "confidence": "A",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 21.892454164395758,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 1336.0,
   "end_distance_m": 1338.0,
   "start_elevation_m": 692.79094196774,
   "end_elevation_m": 693.2287910510279,
   "min_gradient_pct": -9.18418456475365
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 21.825322138693082,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 1336.0,
   "end_distance_m": 1339.0,
   "start_elevation_m": 692.79094196774,
   "end_elevation_m": 693.4457016319008,
   "min_gradient_pct": -8.166317477328752
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 20.030325695940974,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 1336.0,
   "end_distance_m": 1341.0,
   "start_elevation_m": 692.79094196774,
   "end_elevation_m": 693.792458252537,
   "min_gradient_pct": -7.484334870566727
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 19.080011780936275,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 1335.0,
   "end_distance_m": 1345.0,
   "start_elevation_m": 692.6226992174472,
   "end_elevation_m": 694.5307003955409,
   "min_gradient_pct": -6.658844935720936
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 18.399482262295805,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 1328.0,
   "end_distance_m": 1348.0,
   "start_elevation_m": 691.3942893862001,
   "end_elevation_m": 695.0741858386592,
   "min_gradient_pct": -2.2404782971869963
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 18.119091036761347,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 1328.0,
   "end_distance_m": 1353.0,
   "start_elevation_m": 691.3942893862001,
   "end_elevation_m": 695.9240621453904,
   "min_gradient_pct": -1.1173508240563024
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 17.376429831382666,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 168.0,
   "end_distance_m": 218.0,
   "start_elevation_m": 564.0549357543475,
   "end_elevation_m": 572.7431506700389,
   "min_gradient_pct": 1.9521536860752349
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 16.278821090417296,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 124.0,
   "end_distance_m": 224.0,
   "start_elevation_m": 557.4410225565813,
   "end_elevation_m": 573.7198436469986,
   "min_gradient_pct": 5.036317564425644
  }
 ],
 "shape": {
  "ascent_concentration": 0.328,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 283.0,
  "shape_class": "sustained"
 },
 "length_m": 1523.251978003096,
 "start_elevation_m": 549.8068389902434,
 "end_elevation_m": 713.0374744189488,
 "endpoint_gain_m": 163.23063542870545,
 "overall_gradient_pct": 10.715931296061228,
 "accumulated_ascent_m": 164.38852467839638,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 20.030325695940974,
   "start_distance_m": 1336.0,
   "end_distance_m": 1341.0,
   "midpoint_distance_m": 1338.5,
   "start_elevation_m": 692.79094196774,
   "end_elevation_m": 693.792458252537,
   "start_xy": [
    2630602.4311092375,
    1249449.0177222388
   ],
   "end_xy": [
    2630600.691669018,
    1249444.3370406125
   ]
  },
  "max_10m": {
   "gradient_pct": 19.080011780936275,
   "start_distance_m": 1335.0,
   "end_distance_m": 1345.0,
   "midpoint_distance_m": 1340.0,
   "start_elevation_m": 692.6226992174472,
   "end_elevation_m": 694.5307003955409,
   "start_xy": [
    2630602.7423362625,
    1249449.9680578317
   ],
   "end_xy": [
    2630599.051288198,
    1249440.6888697331
   ]
  },
  "max_20m": {
   "gradient_pct": 18.399482262295805,
   "start_distance_m": 1328.0,
   "end_distance_m": 1348.0,
   "midpoint_distance_m": 1338.0,
   "start_elevation_m": 691.3942893862001,
   "end_elevation_m": 695.0741858386592,
   "start_xy": [
    2630604.9209254365,
    1249456.6204069813
   ],
   "end_xy": [
    2630597.463558967,
    1249438.167801728
   ]
  },
  "max_25m": {
   "gradient_pct": 18.119091036761347,
   "start_distance_m": 1328.0,
   "end_distance_m": 1353.0,
   "midpoint_distance_m": 1340.5,
   "start_elevation_m": 691.3942893862001,
   "end_elevation_m": 695.9240621453904,
   "start_xy": [
    2630604.9209254365,
    1249456.6204069813
   ],
   "end_xy": [
    2630594.3951215623,
    1249434.2200565625
   ]
  },
  "max_50m": {
   "gradient_pct": 17.376429831382666,
   "start_distance_m": 168.0,
   "end_distance_m": 218.0,
   "midpoint_distance_m": 193.0,
   "start_elevation_m": 564.0549357543475,
   "end_elevation_m": 572.7431506700389,
   "start_xy": [
    2631355.423854329,
    1249183.9477459353
   ],
   "end_xy": [
    2631318.497125589,
    1249150.8753805577
   ]
  },
  "max_100m": {
   "gradient_pct": 16.278821090417296,
   "start_distance_m": 124.0,
   "end_distance_m": 224.0,
   "midpoint_distance_m": 174.0,
   "start_elevation_m": 557.4410225565813,
   "end_elevation_m": 573.7198436469986,
   "start_xy": [
    2631362.4275790155,
    1249225.7611034992
   ],
   "end_xy": [
    2631315.162803758,
    1249145.8903150237
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -7.484334870566727,
   "start_distance_m": 30.0,
   "end_distance_m": 35.0,
   "midpoint_distance_m": 32.5,
   "start_elevation_m": 551.9050019763752,
   "end_elevation_m": 551.5307852328468,
   "start_xy": [
    2631344.199285603,
    1249303.2338452446
   ],
   "end_xy": [
    2631339.457166537,
    1249301.648819452
   ]
  },
  "min_10m": {
   "gradient_pct": -6.658844935720936,
   "start_distance_m": 28.0,
   "end_distance_m": 38.0,
   "midpoint_distance_m": 33.0,
   "start_elevation_m": 551.996691926511,
   "end_elevation_m": 551.3308074329389,
   "start_xy": [
    2631346.09613323,
    1249303.8678555617
   ],
   "end_xy": [
    2631336.6118950974,
    1249300.6978039765
   ]
  },
  "min_20m": {
   "gradient_pct": -2.2404782971869963,
   "start_distance_m": 25.0,
   "end_distance_m": 45.0,
   "midpoint_distance_m": 35.0,
   "start_elevation_m": 551.9862408137452,
   "end_elevation_m": 551.5381451543078,
   "start_xy": [
    2631348.9414046695,
    1249304.818871037
   ],
   "end_xy": [
    2631335.154501511,
    1249295.184154014
   ]
  },
  "min_25m": {
   "gradient_pct": -1.1173508240563024,
   "start_distance_m": 25.0,
   "end_distance_m": 50.0,
   "midpoint_distance_m": 37.5,
   "start_elevation_m": 551.9862408137452,
   "end_elevation_m": 551.7069031077311,
   "start_xy": [
    2631348.9414046695,
    1249304.818871037
   ],
   "end_xy": [
    2631335.73083609,
    1249290.2174812392
   ]
  },
  "min_50m": {
   "gradient_pct": 1.9521536860752349,
   "start_distance_m": 24.0,
   "end_distance_m": 74.0,
   "midpoint_distance_m": 49.0,
   "start_elevation_m": 551.9270812027768,
   "end_elevation_m": 552.9031580458144,
   "start_xy": [
    2631349.8898284826,
    1249305.1358761957
   ],
   "end_xy": [
    2631339.866035887,
    1249266.636479754
   ]
  },
  "min_100m": {
   "gradient_pct": 5.036317564425644,
   "start_distance_m": 15.0,
   "end_distance_m": 115.0,
   "midpoint_distance_m": 65.0,
   "start_elevation_m": 551.2164778715173,
   "end_elevation_m": 556.252795435943,
   "start_xy": [
    2631358.4256428014,
    1249307.9889226223
   ],
   "end_xy": [
    2631363.5554479905,
    1249234.5098123222
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 21.892454164395758,
   "start_distance_m": 1336.0,
   "end_distance_m": 1338.0,
   "midpoint_distance_m": 1337.0,
   "start_elevation_m": 692.79094196774,
   "end_elevation_m": 693.2287910510279,
   "start_xy": [
    2630602.4311092375,
    1249449.0177222388
   ],
   "end_xy": [
    2630601.808655188,
    1249447.117051053
   ]
  },
  "max_3m": {
   "gradient_pct": 21.825322138693082,
   "start_distance_m": 1336.0,
   "end_distance_m": 1339.0,
   "midpoint_distance_m": 1337.5,
   "start_elevation_m": 692.79094196774,
   "end_elevation_m": 693.4457016319008,
   "start_xy": [
    2630602.4311092375,
    1249449.0177222388
   ],
   "end_xy": [
    2630601.497428163,
    1249446.1667154604
   ]
  }
 },
 "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"
  ]
 },
 "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_2630-1249_0.5_2056_5728.tif",
   "data/cache/ch/swissalti3d_2025_2631-1249_0.5_2056_5728.tif"
  ],
  "calculated_at": "2026-09-10T20:54:03+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": [
   "2630-1249",
   "2631-1249"
  ],
  "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\u00e4ufelfingen",
  "county": "Basel-Landschaft",
  "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)"
 }
}