{
 "ocl_version": "0.1.0",
 "name": "Hauptstrasse",
 "slug": "hauptstrasse-4-2",
 "confidence": "A",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 24.04564758127208,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 12.0,
   "end_distance_m": 14.0,
   "start_elevation_m": 1349.6047131356447,
   "end_elevation_m": 1350.0856260872702,
   "min_gradient_pct": -3.3731417193507696
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 23.58694001494162,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 11.0,
   "end_distance_m": 14.0,
   "start_elevation_m": 1349.378017886822,
   "end_elevation_m": 1350.0856260872702,
   "min_gradient_pct": -3.2248862834497536
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 22.241425664433336,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 9.0,
   "end_distance_m": 14.0,
   "start_elevation_m": 1348.9735548040485,
   "end_elevation_m": 1350.0856260872702,
   "min_gradient_pct": 0.4052179414884449
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 21.263639216326737,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 9.0,
   "end_distance_m": 19.0,
   "start_elevation_m": 1348.9735548040485,
   "end_elevation_m": 1351.0999187256812,
   "min_gradient_pct": 3.977483598848721
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 18.26683403394668,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 5.0,
   "end_distance_m": 25.0,
   "start_elevation_m": 1348.3954501571077,
   "end_elevation_m": 1352.048816963897,
   "min_gradient_pct": 4.448911810727623
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 16.66883951526961,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 1783.0,
   "end_distance_m": 1808.0,
   "start_elevation_m": 1541.6679304663849,
   "end_elevation_m": 1545.8351403452023,
   "min_gradient_pct": 4.710776644213183
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 15.68659741729789,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 1762.0,
   "end_distance_m": 1812.0,
   "start_elevation_m": 1538.5949428325441,
   "end_elevation_m": 1546.438241541193,
   "min_gradient_pct": 5.4676907196808315
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 14.991697770221208,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 1723.0,
   "end_distance_m": 1823.0,
   "start_elevation_m": 1532.9137361018122,
   "end_elevation_m": 1547.9054338720334,
   "min_gradient_pct": 6.500716446114666
  }
 ],
 "shape": {
  "ascent_concentration": 0.301,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 396.0,
  "shape_class": "sustained"
 },
 "length_m": 1929.7689127080946,
 "start_elevation_m": 1348.0386945888717,
 "end_elevation_m": 1561.1310419882673,
 "endpoint_gain_m": 213.09234739939552,
 "overall_gradient_pct": 11.042376421141405,
 "accumulated_ascent_m": 213.189093987899,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 22.241425664433336,
   "start_distance_m": 9.0,
   "end_distance_m": 14.0,
   "midpoint_distance_m": 11.5,
   "start_elevation_m": 1348.9735548040485,
   "end_elevation_m": 1350.0856260872702,
   "start_xy": [
    2757814.457630495,
    1171614.4521875777
   ],
   "end_xy": [
    2757814.3742053085,
    1171609.462043674
   ]
  },
  "max_10m": {
   "gradient_pct": 21.263639216326737,
   "start_distance_m": 9.0,
   "end_distance_m": 19.0,
   "midpoint_distance_m": 14.0,
   "start_elevation_m": 1348.9735548040485,
   "end_elevation_m": 1351.0999187256812,
   "start_xy": [
    2757814.457630495,
    1171614.4521875777
   ],
   "end_xy": [
    2757812.9018246075,
    1171604.7001520453
   ]
  },
  "max_20m": {
   "gradient_pct": 18.26683403394668,
   "start_distance_m": 5.0,
   "end_distance_m": 25.0,
   "midpoint_distance_m": 15.0,
   "start_elevation_m": 1348.3954501571077,
   "end_elevation_m": 1352.048816963897,
   "start_xy": [
    2757814.1706836084,
    1171618.4418819877
   ],
   "end_xy": [
    2757810.356120116,
    1171599.2669772236
   ]
  },
  "max_25m": {
   "gradient_pct": 16.66883951526961,
   "start_distance_m": 1783.0,
   "end_distance_m": 1808.0,
   "midpoint_distance_m": 1795.5,
   "start_elevation_m": 1541.6679304663849,
   "end_elevation_m": 1545.8351403452023,
   "start_xy": [
    2757398.221761048,
    1171502.241014193
   ],
   "end_xy": [
    2757378.346853876,
    1171488.3427590344
   ]
  },
  "max_50m": {
   "gradient_pct": 15.68659741729789,
   "start_distance_m": 1762.0,
   "end_distance_m": 1812.0,
   "midpoint_distance_m": 1787.0,
   "start_elevation_m": 1538.5949428325441,
   "end_elevation_m": 1546.438241541193,
   "start_xy": [
    2757404.330372534,
    1171522.231298762
   ],
   "end_xy": [
    2757375.265668091,
    1171485.8884297938
   ]
  },
  "max_100m": {
   "gradient_pct": 14.991697770221208,
   "start_distance_m": 1723.0,
   "end_distance_m": 1823.0,
   "midpoint_distance_m": 1773.0,
   "start_elevation_m": 1532.9137361018122,
   "end_elevation_m": 1547.9054338720334,
   "start_xy": [
    2757403.3721973225,
    1171560.7845259102
   ],
   "end_xy": [
    2757368.991113254,
    1171476.8933980756
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": 0.4052179414884449,
   "start_distance_m": 26.0,
   "end_distance_m": 31.0,
   "midpoint_distance_m": 28.5,
   "start_elevation_m": 1352.1399534628076,
   "end_elevation_m": 1352.160214359882,
   "start_xy": [
    2757809.931836034,
    1171598.3614480866
   ],
   "end_xy": [
    2757807.677451189,
    1171595.6999446012
   ]
  },
  "min_10m": {
   "gradient_pct": 3.977483598848721,
   "start_distance_m": 1515.0,
   "end_distance_m": 1525.0,
   "midpoint_distance_m": 1520.0,
   "start_elevation_m": 1506.4982338436062,
   "end_elevation_m": 1506.895982203491,
   "start_xy": [
    2757440.6307496936,
    1171760.283531914
   ],
   "end_xy": [
    2757435.746376778,
    1171752.396154294
   ]
  },
  "min_20m": {
   "gradient_pct": 4.448911810727623,
   "start_distance_m": 214.0,
   "end_distance_m": 234.0,
   "midpoint_distance_m": 224.0,
   "start_elevation_m": 1367.8500531475693,
   "end_elevation_m": 1368.7398355097148,
   "start_xy": [
    2757775.68826197,
    1171771.514264929
   ],
   "end_xy": [
    2757769.8857651977,
    1171790.6193651145
   ]
  },
  "min_25m": {
   "gradient_pct": 4.710776644213183,
   "start_distance_m": 214.0,
   "end_distance_m": 239.0,
   "midpoint_distance_m": 226.5,
   "start_elevation_m": 1367.8500531475693,
   "end_elevation_m": 1369.0277473086226,
   "start_xy": [
    2757775.68826197,
    1171771.514264929
   ],
   "end_xy": [
    2757768.374817714,
    1171795.3795867378
   ]
  },
  "min_50m": {
   "gradient_pct": 5.4676907196808315,
   "start_distance_m": 208.0,
   "end_distance_m": 258.0,
   "midpoint_distance_m": 233.0,
   "start_elevation_m": 1367.4563529200082,
   "end_elevation_m": 1370.1901982798486,
   "start_xy": [
    2757776.7858933285,
    1171765.6227644933
   ],
   "end_xy": [
    2757764.5664027957,
    1171813.9784421204
   ]
  },
  "min_100m": {
   "gradient_pct": 6.500716446114666,
   "start_distance_m": 513.0,
   "end_distance_m": 613.0,
   "midpoint_distance_m": 563.0,
   "start_elevation_m": 1392.9532884167647,
   "end_elevation_m": 1399.4540048628794,
   "start_xy": [
    2757734.456983109,
    1172065.7496035905
   ],
   "end_xy": [
    2757716.1982545783,
    1172051.9039547164
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 24.04564758127208,
   "start_distance_m": 12.0,
   "end_distance_m": 14.0,
   "midpoint_distance_m": 13.0,
   "start_elevation_m": 1349.6047131356447,
   "end_elevation_m": 1350.0856260872702,
   "start_xy": [
    2757814.4903602297,
    1171611.4586678336
   ],
   "end_xy": [
    2757814.3742053085,
    1171609.462043674
   ]
  },
  "max_3m": {
   "gradient_pct": 23.58694001494162,
   "start_distance_m": 11.0,
   "end_distance_m": 14.0,
   "midpoint_distance_m": 12.5,
   "start_elevation_m": 1349.378017886822,
   "end_elevation_m": 1350.0856260872702,
   "start_xy": [
    2757814.548437691,
    1171612.4569799132
   ],
   "end_xy": [
    2757814.3742053085,
    1171609.462043674
   ]
  }
 },
 "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_2757-1171_0.5_2056_5728.tif",
   "data/cache/ch/swissalti3d_2023_2757-1172_0.5_2056_5728.tif"
  ],
  "calculated_at": "2026-09-10T21:14:36+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": [
   "2757-1171",
   "2757-1172"
  ],
  "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": "Thusis",
  "county": "Graub\u00fcnden/Grischun/Grigioni",
  "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)"
 }
}