{
 "ocl_version": "0.1.0",
 "name": "Via Mongias",
 "slug": "via-mongias",
 "confidence": "A",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 27.175617219882042,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 112.0,
   "end_distance_m": 114.0,
   "start_elevation_m": 1280.4352505403554,
   "end_elevation_m": 1280.978762884753,
   "min_gradient_pct": 1.8063893916291818
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 26.454138157168927,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 111.0,
   "end_distance_m": 114.0,
   "start_elevation_m": 1280.185138740038,
   "end_elevation_m": 1280.978762884753,
   "min_gradient_pct": 1.9041805884929393
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 26.04453871865644,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 1164.0,
   "end_distance_m": 1169.0,
   "start_elevation_m": 1435.2224123958824,
   "end_elevation_m": 1436.5246393318153,
   "min_gradient_pct": 2.0973214270725293
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 25.275561503756308,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 1160.0,
   "end_distance_m": 1170.0,
   "start_elevation_m": 1434.252257135136,
   "end_elevation_m": 1436.7798132855116,
   "min_gradient_pct": 2.4337419709104324
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 24.183582687473972,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 1154.0,
   "end_distance_m": 1174.0,
   "start_elevation_m": 1432.816472650337,
   "end_elevation_m": 1437.6531891878317,
   "min_gradient_pct": 2.977226436443061
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 23.94639882750016,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 1154.0,
   "end_distance_m": 1179.0,
   "start_elevation_m": 1432.816472650337,
   "end_elevation_m": 1438.803072357212,
   "min_gradient_pct": 3.3377053536814856
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 22.176688273403215,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 1140.0,
   "end_distance_m": 1190.0,
   "start_elevation_m": 1429.9510906053868,
   "end_elevation_m": 1441.0394347420884,
   "min_gradient_pct": 5.712866119418322
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 20.48577207822086,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 57.0,
   "end_distance_m": 157.0,
   "start_elevation_m": 1268.4944329798386,
   "end_elevation_m": 1288.9802050580595,
   "min_gradient_pct": 7.006913812866969
  }
 ],
 "shape": {
  "ascent_concentration": 0.306,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 490.0,
  "shape_class": "sustained"
 },
 "length_m": 1245.5100357246272,
 "start_elevation_m": 1259.691930781284,
 "end_elevation_m": 1450.0058661034716,
 "endpoint_gain_m": 190.3139353221875,
 "overall_gradient_pct": 15.280000149614569,
 "accumulated_ascent_m": 190.3139353221875,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 26.04453871865644,
   "start_distance_m": 1164.0,
   "end_distance_m": 1169.0,
   "midpoint_distance_m": 1166.5,
   "start_elevation_m": 1435.2224123958824,
   "end_elevation_m": 1436.5246393318153,
   "start_xy": [
    2737404.779349912,
    1187963.1373119857
   ],
   "end_xy": [
    2737402.235048773,
    1187967.4415577634
   ]
  },
  "max_10m": {
   "gradient_pct": 25.275561503756308,
   "start_distance_m": 1160.0,
   "end_distance_m": 1170.0,
   "midpoint_distance_m": 1165.0,
   "start_elevation_m": 1434.252257135136,
   "end_elevation_m": 1436.7798132855116,
   "start_xy": [
    2737406.8147908235,
    1187959.6939153636
   ],
   "end_xy": [
    2737401.726188545,
    1187968.3024069187
   ]
  },
  "max_20m": {
   "gradient_pct": 24.183582687473972,
   "start_distance_m": 1154.0,
   "end_distance_m": 1174.0,
   "midpoint_distance_m": 1164.0,
   "start_elevation_m": 1432.816472650337,
   "end_elevation_m": 1437.6531891878317,
   "start_xy": [
    2737410.3084444352,
    1187954.8706643188
   ],
   "end_xy": [
    2737400.3947673393,
    1187972.052063636
   ]
  },
  "max_25m": {
   "gradient_pct": 23.94639882750016,
   "start_distance_m": 1154.0,
   "end_distance_m": 1179.0,
   "midpoint_distance_m": 1166.5,
   "start_elevation_m": 1432.816472650337,
   "end_elevation_m": 1438.803072357212,
   "start_xy": [
    2737410.3084444352,
    1187954.8706643188
   ],
   "end_xy": [
    2737398.9804049884,
    1187976.8478512818
   ]
  },
  "max_50m": {
   "gradient_pct": 22.176688273403215,
   "start_distance_m": 1140.0,
   "end_distance_m": 1190.0,
   "midpoint_distance_m": 1165.0,
   "start_elevation_m": 1429.9510906053868,
   "end_elevation_m": 1441.0394347420884,
   "start_xy": [
    2737420.2145964815,
    1187944.9778309714
   ],
   "end_xy": [
    2737395.6062240666,
    1187987.3066632163
   ]
  },
  "max_100m": {
   "gradient_pct": 20.48577207822086,
   "start_distance_m": 57.0,
   "end_distance_m": 157.0,
   "midpoint_distance_m": 107.0,
   "start_elevation_m": 1268.4944329798386,
   "end_elevation_m": 1288.9802050580595,
   "start_xy": [
    2737833.4702219004,
    1187683.502725249
   ],
   "end_xy": [
    2737761.9872411164,
    1187752.6034944758
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": 2.0973214270725293,
   "start_distance_m": 501.0,
   "end_distance_m": 506.0,
   "midpoint_distance_m": 503.5,
   "start_elevation_m": 1346.3439424506123,
   "end_elevation_m": 1346.448808521966,
   "start_xy": [
    2737638.103561717,
    1187770.9024349786
   ],
   "end_xy": [
    2737635.3413818027,
    1187766.7346583386
   ]
  },
  "min_10m": {
   "gradient_pct": 2.4337419709104324,
   "start_distance_m": 496.0,
   "end_distance_m": 506.0,
   "midpoint_distance_m": 501.0,
   "start_elevation_m": 1346.205434324875,
   "end_elevation_m": 1346.448808521966,
   "start_xy": [
    2737640.8657416315,
    1187775.0702116184
   ],
   "end_xy": [
    2737635.3413818027,
    1187766.7346583386
   ]
  },
  "min_20m": {
   "gradient_pct": 2.977226436443061,
   "start_distance_m": 494.0,
   "end_distance_m": 514.0,
   "midpoint_distance_m": 504.0,
   "start_elevation_m": 1346.1335885100007,
   "end_elevation_m": 1346.7290337972893,
   "start_xy": [
    2737641.9706135974,
    1187776.7373222744
   ],
   "end_xy": [
    2737630.921713714,
    1187760.0663351647
   ]
  },
  "min_25m": {
   "gradient_pct": 3.3377053536814856,
   "start_distance_m": 493.0,
   "end_distance_m": 518.0,
   "midpoint_distance_m": 505.5,
   "start_elevation_m": 1346.085637740207,
   "end_elevation_m": 1346.9200640786273,
   "start_xy": [
    2737642.5230495804,
    1187777.5708776023
   ],
   "end_xy": [
    2737628.711813612,
    1187756.7322173598
   ]
  },
  "min_50m": {
   "gradient_pct": 5.712866119418322,
   "start_distance_m": 971.0,
   "end_distance_m": 1021.0,
   "midpoint_distance_m": 996.0,
   "start_elevation_m": 1411.1225911369538,
   "end_elevation_m": 1413.979024196663,
   "start_xy": [
    2737479.941792303,
    1187792.6346129254
   ],
   "end_xy": [
    2737475.048711448,
    1187842.1004737585
   ]
  },
  "min_100m": {
   "gradient_pct": 7.006913812866969,
   "start_distance_m": 946.0,
   "end_distance_m": 1046.0,
   "midpoint_distance_m": 996.0,
   "start_elevation_m": 1409.1088227342439,
   "end_elevation_m": 1416.1157365471108,
   "start_xy": [
    2737469.6888934565,
    1187770.1043612577
   ],
   "end_xy": [
    2737469.438535909,
    1187866.4596404165
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 27.175617219882042,
   "start_distance_m": 112.0,
   "end_distance_m": 114.0,
   "midpoint_distance_m": 113.0,
   "start_elevation_m": 1280.4352505403554,
   "end_elevation_m": 1280.978762884753,
   "start_xy": [
    2737792.0744969747,
    1187719.553117463
   ],
   "end_xy": [
    2737790.5997863123,
    1187720.9041276262
   ]
  },
  "max_3m": {
   "gradient_pct": 26.454138157168927,
   "start_distance_m": 111.0,
   "end_distance_m": 114.0,
   "midpoint_distance_m": 112.5,
   "start_elevation_m": 1280.185138740038,
   "end_elevation_m": 1280.978762884753,
   "start_xy": [
    2737792.811852306,
    1187718.8776123812
   ],
   "end_xy": [
    2737790.5997863123,
    1187720.9041276262
   ]
  }
 },
 "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_2023_2737-1187_0.5_2056_5728.tif",
   "data/cache/ch/swissalti3d_2023_2737-1188_0.5_2056_5728.tif"
  ],
  "calculated_at": "2026-09-10T19:54:55+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": [
   "2737-1187",
   "2737-1188"
  ],
  "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": "Laax",
  "county": "Graub\u00fcnden/Grischun/Grigioni",
  "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)"
 }
}