{
 "ocl_version": "0.1.0",
 "name": "Discovered lane (46.7035, 7.9632)",
 "slug": "discovered-lane-46-6979-7-9532",
 "confidence": "B",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 35.93811222355612,
   "diagnostic": true,
   "flags": [
    "structure_excluded"
   ],
   "start_distance_m": 494.0,
   "end_distance_m": 496.0,
   "start_elevation_m": 775.4654887859829,
   "end_elevation_m": 776.184251030454,
   "min_gradient_pct": -39.59353235179606,
   "suppressed_max_gradient_pct": 84.31263315885644,
   "suppressed_location_m": [
    836.0,
    838.0
   ]
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 30.54682533782322,
   "diagnostic": true,
   "flags": [
    "structure_excluded"
   ],
   "start_distance_m": 493.0,
   "end_distance_m": 496.0,
   "start_elevation_m": 775.2678462703193,
   "end_elevation_m": 776.184251030454,
   "min_gradient_pct": -30.079487730552046,
   "suppressed_max_gradient_pct": 56.0845149581534,
   "suppressed_location_m": [
    835.0,
    838.0
   ]
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 23.812126488055583,
   "diagnostic": false,
   "flags": [
    "structure_excluded"
   ],
   "start_distance_m": 1569.0,
   "end_distance_m": 1574.0,
   "start_elevation_m": 907.4579938842044,
   "end_elevation_m": 908.6486002086071,
   "min_gradient_pct": -18.260382409207523,
   "suppressed_max_gradient_pct": 36.99181703458862,
   "suppressed_location_m": [
    833.0,
    838.0
   ]
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 19.449642728108074,
   "diagnostic": false,
   "flags": [
    "structure_excluded"
   ],
   "start_distance_m": 1564.0,
   "end_distance_m": 1574.0,
   "start_elevation_m": 906.7036359357963,
   "end_elevation_m": 908.6486002086071,
   "min_gradient_pct": -3.847561256404788,
   "suppressed_max_gradient_pct": 25.070918818721566,
   "suppressed_location_m": [
    828.0,
    838.0
   ]
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 17.110024677883757,
   "diagnostic": false,
   "flags": [
    "structure_excluded"
   ],
   "start_distance_m": 2936.0,
   "end_distance_m": 2956.0,
   "start_elevation_m": 1061.264324437904,
   "end_elevation_m": 1064.6863293734807,
   "min_gradient_pct": -0.9955923379243359,
   "suppressed_max_gradient_pct": 19.054994568641064,
   "suppressed_location_m": [
    346.0,
    366.0
   ]
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 16.736575699059358,
   "diagnostic": false,
   "flags": [
    "structure_excluded"
   ],
   "start_distance_m": 1161.0,
   "end_distance_m": 1186.0,
   "start_elevation_m": 854.0809056124056,
   "end_elevation_m": 858.2650495371704,
   "min_gradient_pct": 0.04698055611788732,
   "suppressed_max_gradient_pct": 17.742817314322565,
   "suppressed_location_m": [
    341.0,
    366.0
   ]
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 14.99616915602519,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 1136.0,
   "end_distance_m": 1186.0,
   "start_elevation_m": 850.7669649591578,
   "end_elevation_m": 858.2650495371704,
   "min_gradient_pct": 3.506623256993862
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 14.52178090305165,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 1087.0,
   "end_distance_m": 1187.0,
   "start_elevation_m": 843.8620468162464,
   "end_elevation_m": 858.3838277192981,
   "min_gradient_pct": 7.276457345617018
  }
 ],
 "shape": {
  "ascent_concentration": 0.267,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 424.0,
  "shape_class": "sustained"
 },
 "length_m": 5025.303228653571,
 "start_elevation_m": 722.6493846367371,
 "end_elevation_m": 1304.6689830898576,
 "endpoint_gain_m": 582.0195984531206,
 "overall_gradient_pct": 11.581780680109548,
 "accumulated_ascent_m": 591.1809246194213,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 23.812126488055583,
   "start_distance_m": 1569.0,
   "end_distance_m": 1574.0,
   "midpoint_distance_m": 1571.5,
   "start_elevation_m": 907.4579938842044,
   "end_elevation_m": 908.6486002086071,
   "start_xy": [
    2640028.5419224617,
    1172401.230913598
   ],
   "end_xy": [
    2640032.1462008427,
    1172397.7654875997
   ]
  },
  "max_10m": {
   "gradient_pct": 19.449642728108074,
   "start_distance_m": 1564.0,
   "end_distance_m": 1574.0,
   "midpoint_distance_m": 1569.0,
   "start_elevation_m": 906.7036359357963,
   "end_elevation_m": 908.6486002086071,
   "start_xy": [
    2640024.9376440803,
    1172404.6963395965
   ],
   "end_xy": [
    2640032.1462008427,
    1172397.7654875997
   ]
  },
  "max_20m": {
   "gradient_pct": 17.110024677883757,
   "start_distance_m": 2936.0,
   "end_distance_m": 2956.0,
   "midpoint_distance_m": 2946.0,
   "start_elevation_m": 1061.264324437904,
   "end_elevation_m": 1064.6863293734807,
   "start_xy": [
    2639537.775271614,
    1171941.359695713
   ],
   "end_xy": [
    2639557.5108925034,
    1171938.1185125797
   ]
  },
  "max_25m": {
   "gradient_pct": 16.736575699059358,
   "start_distance_m": 1161.0,
   "end_distance_m": 1186.0,
   "midpoint_distance_m": 1173.5,
   "start_elevation_m": 854.0809056124056,
   "end_elevation_m": 858.2650495371704,
   "start_xy": [
    2640121.273445448,
    1172617.147592359
   ],
   "end_xy": [
    2640108.832077709,
    1172596.0228352842
   ]
  },
  "max_50m": {
   "gradient_pct": 14.99616915602519,
   "start_distance_m": 1136.0,
   "end_distance_m": 1186.0,
   "midpoint_distance_m": 1161.0,
   "start_elevation_m": 850.7669649591578,
   "end_elevation_m": 858.2650495371704,
   "start_xy": [
    2640144.276462335,
    1172626.4031963493
   ],
   "end_xy": [
    2640108.832077709,
    1172596.0228352842
   ]
  },
  "max_100m": {
   "gradient_pct": 14.52178090305165,
   "start_distance_m": 1087.0,
   "end_distance_m": 1187.0,
   "midpoint_distance_m": 1137.0,
   "start_elevation_m": 843.8620468162464,
   "end_elevation_m": 858.3838277192981,
   "start_xy": [
    2640190.490285475,
    1172640.8524437952
   ],
   "end_xy": [
    2640108.5303334156,
    1172595.0694463912
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -18.260382409207523,
   "start_distance_m": 366.0,
   "end_distance_m": 371.0,
   "midpoint_distance_m": 368.5,
   "start_elevation_m": 763.4712327092057,
   "end_elevation_m": 762.5582135887453,
   "start_xy": [
    2639807.4810604258,
    1172640.9886091035
   ],
   "end_xy": [
    2639812.4808746628,
    1172640.945509298
   ]
  },
  "min_10m": {
   "gradient_pct": -3.847561256404788,
   "start_distance_m": 3120.0,
   "end_distance_m": 3130.0,
   "midpoint_distance_m": 3125.0,
   "start_elevation_m": 1083.516367367124,
   "end_elevation_m": 1083.1316112414836,
   "start_xy": [
    2639720.910738692,
    1171935.743618585
   ],
   "end_xy": [
    2639730.319477643,
    1171937.9734188064
   ]
  },
  "min_20m": {
   "gradient_pct": -0.9955923379243359,
   "start_distance_m": 3117.0,
   "end_distance_m": 3137.0,
   "midpoint_distance_m": 3127.0,
   "start_elevation_m": 1083.5157362191467,
   "end_elevation_m": 1083.3166177515618,
   "start_xy": [
    2639717.9194361726,
    1171935.5312728665
   ],
   "end_xy": [
    2639736.089162281,
    1171941.9370962884
   ]
  },
  "min_25m": {
   "gradient_pct": 0.04698055611788732,
   "start_distance_m": 2301.0,
   "end_distance_m": 2326.0,
   "midpoint_distance_m": 2313.5,
   "start_elevation_m": 987.7353648400325,
   "end_elevation_m": 987.747109979062,
   "start_xy": [
    2639717.6327509554,
    1172128.2326494155
   ],
   "end_xy": [
    2639700.054966549,
    1172110.648211023
   ]
  },
  "min_50m": {
   "gradient_pct": 3.506623256993862,
   "start_distance_m": 3111.0,
   "end_distance_m": 3161.0,
   "midpoint_distance_m": 3136.0,
   "start_elevation_m": 1083.251698020187,
   "end_elevation_m": 1085.0050096486839,
   "start_xy": [
    2639711.9589890866,
    1171934.843471635
   ],
   "end_xy": [
    2639753.951993085,
    1171957.8545214273
   ]
  },
  "min_100m": {
   "gradient_pct": 7.276457345617018,
   "start_distance_m": 3104.0,
   "end_distance_m": 3204.0,
   "midpoint_distance_m": 3154.0,
   "start_elevation_m": 1082.5711377713624,
   "end_elevation_m": 1089.8475951169794,
   "start_xy": [
    2639705.0051341527,
    1171934.0410368647
   ],
   "end_xy": [
    2639791.140131171,
    1171979.1131521643
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 35.93811222355612,
   "start_distance_m": 494.0,
   "end_distance_m": 496.0,
   "midpoint_distance_m": 495.0,
   "start_elevation_m": 775.4654887859829,
   "end_elevation_m": 776.184251030454,
   "start_xy": [
    2639922.9330798606,
    1172677.442194579
   ],
   "end_xy": [
    2639924.7447647974,
    1172678.2824138606
   ]
  },
  "max_3m": {
   "gradient_pct": 30.54682533782322,
   "start_distance_m": 493.0,
   "end_distance_m": 496.0,
   "midpoint_distance_m": 494.5,
   "start_elevation_m": 775.2678462703193,
   "end_elevation_m": 776.184251030454,
   "start_xy": [
    2639921.95176138,
    1172677.2498042495
   ],
   "end_xy": [
    2639924.7447647974,
    1172678.2824138606
   ]
  }
 },
 "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": {
  "structure_suppression": {
   "masked_fraction": 0.003,
   "windows_resited": [
    2.0,
    3.0,
    5.0,
    10.0,
    20.0,
    25.0
   ],
   "windows_unresolved": []
  },
  "excluded_ranges_m": [
   [
    362.0,
    367.0
   ],
   [
    834.0,
    840.0
   ]
  ],
  "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_2639-1171_0.5_2056_5728.tif",
   "data/cache/ch/swissalti3d_2025_2639-1172_0.5_2056_5728.tif",
   "data/cache/ch/swissalti3d_2025_2640-1171_0.5_2056_5728.tif",
   "data/cache/ch/swissalti3d_2025_2640-1172_0.5_2056_5728.tif"
  ],
  "calculated_at": "2026-09-11T02:54:26+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": [
   "2639-1171",
   "2639-1172",
   "2640-1171",
   "2640-1172"
  ],
  "climb_origin": "discovered",
  "canopy_check": "unavailable \u2014 no surface model (DSM or point cloud) registered for this coverage",
  "naming": {
   "previous_name": "Discovered lane (46.6979, 7.9532)",
   "relabelled": "2026-09-13",
   "why": "label recomputed at the steepest 25 m window of the carried measurement"
  },
  "license": "ODbL-1.0",
  "license_url": "https://howsteep.org/licensing"
 },
 "area": {
  "place": "Iseltwald",
  "county": "Bern/Berne",
  "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)"
 }
}