{
 "ocl_version": "0.1.0",
 "name": "Route de Prabys",
 "slug": "route-de-prabys",
 "confidence": "A",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 15.748009629481885,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 17.0,
   "end_distance_m": 19.0,
   "start_elevation_m": 824.417214472822,
   "end_elevation_m": 824.7321746654117,
   "min_gradient_pct": 2.2623794421122057
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 15.26819816817806,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 1308.0,
   "end_distance_m": 1311.0,
   "start_elevation_m": 962.7149929453268,
   "end_elevation_m": 963.1730388903721,
   "min_gradient_pct": 2.3747766303320836
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 15.059818939505476,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 1308.0,
   "end_distance_m": 1313.0,
   "start_elevation_m": 962.7149929453268,
   "end_elevation_m": 963.4679838923021,
   "min_gradient_pct": 3.0952716767410493
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 14.765904161381513,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 1303.0,
   "end_distance_m": 1313.0,
   "start_elevation_m": 961.9913934761639,
   "end_elevation_m": 963.4679838923021,
   "min_gradient_pct": 3.4248217549077253
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 14.235765590215124,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 3089.0,
   "end_distance_m": 3109.0,
   "start_elevation_m": 1146.7542135288354,
   "end_elevation_m": 1149.6013666468784,
   "min_gradient_pct": 3.688208148117269
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 14.061906131486467,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 2822.0,
   "end_distance_m": 2847.0,
   "start_elevation_m": 1114.279357209459,
   "end_elevation_m": 1117.7948337423306,
   "min_gradient_pct": 3.8804274621065815
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 13.600116734261974,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 2786.0,
   "end_distance_m": 2836.0,
   "start_elevation_m": 1109.4739919590857,
   "end_elevation_m": 1116.2740503262166,
   "min_gradient_pct": 4.366026521730419
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 13.404737334602942,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 2780.0,
   "end_distance_m": 2880.0,
   "start_elevation_m": 1108.6586128516753,
   "end_elevation_m": 1122.0633501862783,
   "min_gradient_pct": 5.220265881906698
  }
 ],
 "shape": {
  "ascent_concentration": 0.285,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 442.0,
  "shape_class": "sustained"
 },
 "length_m": 3275.564897562375,
 "start_elevation_m": 822.6297589550651,
 "end_elevation_m": 1170.920417822263,
 "endpoint_gain_m": 348.290658867198,
 "overall_gradient_pct": 10.63299521637903,
 "accumulated_ascent_m": 348.290658867198,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 15.059818939505476,
   "start_distance_m": 1308.0,
   "end_distance_m": 1313.0,
   "midpoint_distance_m": 1310.5,
   "start_elevation_m": 962.7149929453268,
   "end_elevation_m": 963.4679838923021,
   "start_xy": [
    2558520.1448490964,
    1116964.6406496116
   ],
   "end_xy": [
    2558523.948456,
    1116967.8853044398
   ]
  },
  "max_10m": {
   "gradient_pct": 14.765904161381513,
   "start_distance_m": 1303.0,
   "end_distance_m": 1313.0,
   "midpoint_distance_m": 1308.0,
   "start_elevation_m": 961.9913934761639,
   "end_elevation_m": 963.4679838923021,
   "start_xy": [
    2558516.4296455015,
    1116961.294613367
   ],
   "end_xy": [
    2558523.948456,
    1116967.8853044398
   ]
  },
  "max_20m": {
   "gradient_pct": 14.235765590215124,
   "start_distance_m": 3089.0,
   "end_distance_m": 3109.0,
   "midpoint_distance_m": 3099.0,
   "start_elevation_m": 1146.7542135288354,
   "end_elevation_m": 1149.6013666468784,
   "start_xy": [
    2558668.722185945,
    1116131.0777619295
   ],
   "end_xy": [
    2558661.0415108483,
    1116112.710246281
   ]
  },
  "max_25m": {
   "gradient_pct": 14.061906131486467,
   "start_distance_m": 2822.0,
   "end_distance_m": 2847.0,
   "midpoint_distance_m": 2834.5,
   "start_elevation_m": 1114.279357209459,
   "end_elevation_m": 1117.7948337423306,
   "start_xy": [
    2558681.97427436,
    1116394.0347549303
   ],
   "end_xy": [
    2558678.99515581,
    1116369.2186219948
   ]
  },
  "max_50m": {
   "gradient_pct": 13.600116734261974,
   "start_distance_m": 2786.0,
   "end_distance_m": 2836.0,
   "midpoint_distance_m": 2811.0,
   "start_elevation_m": 1109.4739919590857,
   "end_elevation_m": 1116.2740503262166,
   "start_xy": [
    2558680.455106849,
    1116429.8333596822
   ],
   "end_xy": [
    2558680.293096581,
    1116380.1379393083
   ]
  },
  "max_100m": {
   "gradient_pct": 13.404737334602942,
   "start_distance_m": 2780.0,
   "end_distance_m": 2880.0,
   "midpoint_distance_m": 2830.0,
   "start_elevation_m": 1108.6586128516753,
   "end_elevation_m": 1122.0633501862783,
   "start_xy": [
    2558679.1871433593,
    1116435.6953618706
   ],
   "end_xy": [
    2558679.37917793,
    1116336.238213823
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": 3.0952716767410493,
   "start_distance_m": 1552.0,
   "end_distance_m": 1557.0,
   "midpoint_distance_m": 1554.5,
   "start_elevation_m": 983.8269933707859,
   "end_elevation_m": 983.9817569546229,
   "start_xy": [
    2558669.019941166,
    1117146.875177737
   ],
   "end_xy": [
    2558673.3210288044,
    1117149.2817134059
   ]
  },
  "min_10m": {
   "gradient_pct": 3.4248217549077253,
   "start_distance_m": 1539.0,
   "end_distance_m": 1549.0,
   "midpoint_distance_m": 1544.0,
   "start_elevation_m": 983.3285887501874,
   "end_elevation_m": 983.6710709256781,
   "start_xy": [
    2558659.8822236387,
    1117137.6482570032
   ],
   "end_xy": [
    2558666.854964816,
    1117144.8106533925
   ]
  },
  "min_20m": {
   "gradient_pct": 3.688208148117269,
   "start_distance_m": 1539.0,
   "end_distance_m": 1559.0,
   "midpoint_distance_m": 1549.0,
   "start_elevation_m": 983.3285887501874,
   "end_elevation_m": 984.0662303798108,
   "start_xy": [
    2558659.8822236387,
    1117137.6482570032
   ],
   "end_xy": [
    2558675.306656829,
    1117149.503236731
   ]
  },
  "min_25m": {
   "gradient_pct": 3.8804274621065815,
   "start_distance_m": 1533.0,
   "end_distance_m": 1558.0,
   "midpoint_distance_m": 1545.5,
   "start_elevation_m": 983.0532752479469,
   "end_elevation_m": 984.0233821134735,
   "start_xy": [
    2558655.9262517826,
    1117133.137695178
   ],
   "end_xy": [
    2558674.313287239,
    1117149.405903579
   ]
  },
  "min_50m": {
   "gradient_pct": 4.366026521730419,
   "start_distance_m": 1537.0,
   "end_distance_m": 1587.0,
   "midpoint_distance_m": 1562.0,
   "start_elevation_m": 983.2314615798147,
   "end_elevation_m": 985.4144748406799,
   "start_xy": [
    2558658.5563947465,
    1117136.1508666906
   ],
   "end_xy": [
    2558675.216919105,
    1117131.3221041136
   ]
  },
  "min_100m": {
   "gradient_pct": 5.220265881906698,
   "start_distance_m": 1519.0,
   "end_distance_m": 1619.0,
   "midpoint_distance_m": 1569.0,
   "start_elevation_m": 982.1317205004272,
   "end_elevation_m": 987.3519863823338,
   "start_xy": [
    2558645.5930036525,
    1117123.7928057972
   ],
   "end_xy": [
    2558649.8596952287,
    1117112.0130624264
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 15.748009629481885,
   "start_distance_m": 17.0,
   "end_distance_m": 19.0,
   "midpoint_distance_m": 18.0,
   "start_elevation_m": 824.417214472822,
   "end_elevation_m": 824.7321746654117,
   "start_xy": [
    2558036.3695139256,
    1116413.6498948599
   ],
   "end_xy": [
    2558037.43312711,
    1116415.343626537
   ]
  },
  "max_3m": {
   "gradient_pct": 15.26819816817806,
   "start_distance_m": 1308.0,
   "end_distance_m": 1311.0,
   "midpoint_distance_m": 1309.5,
   "start_elevation_m": 962.7149929453268,
   "end_elevation_m": 963.1730388903721,
   "start_xy": [
    2558520.1448490964,
    1116964.6406496116
   ],
   "end_xy": [
    2558522.4063402554,
    1116966.6117742953
   ]
  }
 },
 "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_2024_2558-1115_0.5_2056_5728.tif",
   "data/cache/ch/swissalti3d_2024_2558-1116_0.5_2056_5728.tif",
   "data/cache/ch/swissalti3d_2024_2558-1117_0.5_2056_5728.tif"
  ],
  "calculated_at": "2026-09-10T20:02:25+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": [
   "2558-1115",
   "2558-1116",
   "2558-1117"
  ],
  "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": "Val-d'Illiez",
  "county": "Valais/Wallis",
  "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)"
 }
}