{
 "ocl_version": "0.1.0",
 "name": "Grundbachstrasse",
 "slug": "grundbachstrasse",
 "confidence": "B",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 15.935846037547208,
   "diagnostic": true,
   "flags": [
    "structure_excluded"
   ],
   "start_distance_m": 252.0,
   "end_distance_m": 254.0,
   "start_elevation_m": 689.3391454863572,
   "end_elevation_m": 689.6578624071082,
   "min_gradient_pct": -93.99594540599878,
   "suppressed_max_gradient_pct": 136.9040001510598,
   "suppressed_location_m": [
    464.0,
    466.0
   ]
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 15.36219138387196,
   "diagnostic": true,
   "flags": [
    "structure_excluded"
   ],
   "start_distance_m": 647.0,
   "end_distance_m": 650.0,
   "start_elevation_m": 740.6591954054126,
   "end_elevation_m": 741.1200611469287,
   "min_gradient_pct": -91.00141065776295,
   "suppressed_max_gradient_pct": 121.31817049766293,
   "suppressed_location_m": [
    463.0,
    466.0
   ]
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 14.939080652595749,
   "diagnostic": false,
   "flags": [
    "structure_excluded"
   ],
   "start_distance_m": 684.0,
   "end_distance_m": 689.0,
   "start_elevation_m": 745.9116611262665,
   "end_elevation_m": 746.6586151588963,
   "min_gradient_pct": -56.76326740784816,
   "suppressed_max_gradient_pct": 77.98514450641278,
   "suppressed_location_m": [
    463.0,
    468.0
   ]
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 14.70215356384415,
   "diagnostic": false,
   "flags": [
    "structure_excluded"
   ],
   "start_distance_m": 679.0,
   "end_distance_m": 689.0,
   "start_elevation_m": 745.1883998025119,
   "end_elevation_m": 746.6586151588963,
   "min_gradient_pct": -22.777379666129036,
   "suppressed_max_gradient_pct": 44.80977051770651,
   "suppressed_location_m": [
    463.0,
    473.0
   ]
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 14.332248080849581,
   "diagnostic": false,
   "flags": [
    "structure_excluded"
   ],
   "start_distance_m": 647.0,
   "end_distance_m": 667.0,
   "start_elevation_m": 740.6591954054126,
   "end_elevation_m": 743.5256450215825,
   "min_gradient_pct": -5.857471377640877,
   "suppressed_max_gradient_pct": 28.235530373308393,
   "suppressed_location_m": [
    463.0,
    483.0
   ]
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 14.27311938034427,
   "diagnostic": false,
   "flags": [
    "structure_excluded"
   ],
   "start_distance_m": 657.0,
   "end_distance_m": 682.0,
   "start_elevation_m": 742.0711695910487,
   "end_elevation_m": 745.6394494361348,
   "min_gradient_pct": -2.433820622879466,
   "suppressed_max_gradient_pct": 25.011553826573163,
   "suppressed_location_m": [
    463.0,
    488.0
   ]
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 14.213275293680681,
   "diagnostic": false,
   "flags": [
    "structure_excluded"
   ],
   "start_distance_m": 640.0,
   "end_distance_m": 690.0,
   "start_elevation_m": 739.6881962085233,
   "end_elevation_m": 746.7948338553637,
   "min_gradient_pct": 3.974664467283901,
   "suppressed_max_gradient_pct": 19.036196218411533,
   "suppressed_location_m": [
    463.0,
    513.0
   ]
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 13.922655574643045,
   "diagnostic": false,
   "flags": [
    "structure_excluded"
   ],
   "start_distance_m": 597.0,
   "end_distance_m": 697.0,
   "start_elevation_m": 733.8268442408464,
   "end_elevation_m": 747.7494998154895,
   "min_gradient_pct": 4.2578929980508065,
   "suppressed_max_gradient_pct": 16.014206224422878,
   "suppressed_location_m": [
    463.0,
    563.0
   ]
  }
 ],
 "shape": {
  "ascent_concentration": 0.336,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 296.0,
  "shape_class": "sustained"
 },
 "length_m": 1961.4999999997767,
 "start_elevation_m": 660.9665983603285,
 "end_elevation_m": 858.3021918175589,
 "endpoint_gain_m": 197.3355934572304,
 "overall_gradient_pct": 10.060443204550234,
 "accumulated_ascent_m": 200.1737568276228,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 14.939080652595749,
   "start_distance_m": 684.0,
   "end_distance_m": 689.0,
   "midpoint_distance_m": 686.5,
   "start_elevation_m": 745.9116611262665,
   "end_elevation_m": 746.6586151588963,
   "start_xy": [
    2604198.0154094486,
    1179444.4605817834
   ],
   "end_xy": [
    2604193.714752874,
    1179441.910775436
   ]
  },
  "max_10m": {
   "gradient_pct": 14.70215356384415,
   "start_distance_m": 679.0,
   "end_distance_m": 689.0,
   "midpoint_distance_m": 684.0,
   "start_elevation_m": 745.1883998025119,
   "end_elevation_m": 746.6586151588963,
   "start_xy": [
    2604201.7113806605,
    1179447.8255567525
   ],
   "end_xy": [
    2604193.714752874,
    1179441.910775436
   ]
  },
  "max_20m": {
   "gradient_pct": 14.332248080849581,
   "start_distance_m": 647.0,
   "end_distance_m": 667.0,
   "midpoint_distance_m": 657.0,
   "start_elevation_m": 740.6591954054126,
   "end_elevation_m": 743.5256450215825,
   "start_xy": [
    2604215.482735106,
    1179476.203087953
   ],
   "end_xy": [
    2604208.801462581,
    1179457.3946390352
   ]
  },
  "max_25m": {
   "gradient_pct": 14.27311938034427,
   "start_distance_m": 657.0,
   "end_distance_m": 682.0,
   "midpoint_distance_m": 669.5,
   "start_elevation_m": 742.0711695910487,
   "end_elevation_m": 745.6394494361348,
   "start_xy": [
    2604212.36031074,
    1179466.7228758875
   ],
   "end_xy": [
    2604199.5005409406,
    1179445.7977037663
   ]
  },
  "max_50m": {
   "gradient_pct": 14.213275293680681,
   "start_distance_m": 640.0,
   "end_distance_m": 690.0,
   "midpoint_distance_m": 665.0,
   "start_elevation_m": 739.6881962085233,
   "end_elevation_m": 746.7948338553637,
   "start_xy": [
    2604218.7499119355,
    1179482.3742792415
   ],
   "end_xy": [
    2604192.8438037313,
    1179441.4224099317
   ]
  },
  "max_100m": {
   "gradient_pct": 13.922655574643045,
   "start_distance_m": 597.0,
   "end_distance_m": 697.0,
   "midpoint_distance_m": 647.0,
   "start_elevation_m": 733.8268442408464,
   "end_elevation_m": 747.7494998154895,
   "start_xy": [
    2604251.940671884,
    1179508.7577538488
   ],
   "end_xy": [
    2604186.120257786,
    1179439.527848617
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -56.76326740784816,
   "start_distance_m": 458.0,
   "end_distance_m": 463.0,
   "midpoint_distance_m": 460.5,
   "start_elevation_m": 716.0401689039935,
   "end_elevation_m": 713.2020055336011,
   "start_xy": [
    2604321.144997193,
    1179613.4837593338
   ],
   "end_xy": [
    2604318.6023748918,
    1179609.18981457
   ]
  },
  "min_10m": {
   "gradient_pct": -22.777379666129036,
   "start_distance_m": 453.0,
   "end_distance_m": 463.0,
   "midpoint_distance_m": 458.0,
   "start_elevation_m": 715.479743500214,
   "end_elevation_m": 713.2020055336011,
   "start_xy": [
    2604324.877330445,
    1179616.7448692846
   ],
   "end_xy": [
    2604318.6023748918,
    1179609.18981457
   ]
  },
  "min_20m": {
   "gradient_pct": -5.857471377640877,
   "start_distance_m": 443.0,
   "end_distance_m": 463.0,
   "midpoint_distance_m": 453.0,
   "start_elevation_m": 714.3734998091293,
   "end_elevation_m": 713.2020055336011,
   "start_xy": [
    2604334.290607147,
    1179619.8432714003
   ],
   "end_xy": [
    2604318.6023748918,
    1179609.18981457
   ]
  },
  "min_25m": {
   "gradient_pct": -2.433820622879466,
   "start_distance_m": 438.0,
   "end_distance_m": 463.0,
   "midpoint_distance_m": 450.5,
   "start_elevation_m": 713.810460689321,
   "end_elevation_m": 713.2020055336011,
   "start_xy": [
    2604339.2799899783,
    1179620.1676546577
   ],
   "end_xy": [
    2604318.6023748918,
    1179609.18981457
   ]
  },
  "min_50m": {
   "gradient_pct": 3.974664467283901,
   "start_distance_m": 1429.0,
   "end_distance_m": 1479.0,
   "midpoint_distance_m": 1454.0,
   "start_elevation_m": 815.5867384190259,
   "end_elevation_m": 817.5740706526678,
   "start_xy": [
    2603932.9065849083,
    1179410.004610026
   ],
   "end_xy": [
    2603971.7280059,
    1179441.3505555901
   ]
  },
  "min_100m": {
   "gradient_pct": 4.2578929980508065,
   "start_distance_m": 1413.0,
   "end_distance_m": 1513.0,
   "midpoint_distance_m": 1463.0,
   "start_elevation_m": 814.8029347500323,
   "end_elevation_m": 819.060827748083,
   "start_xy": [
    2603922.126208901,
    1179398.255118271
   ],
   "end_xy": [
    2603985.1353072207,
    1179471.9845380187
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 15.935846037547208,
   "start_distance_m": 252.0,
   "end_distance_m": 254.0,
   "midpoint_distance_m": 253.0,
   "start_elevation_m": 689.3391454863572,
   "end_elevation_m": 689.6578624071082,
   "start_xy": [
    2604509.243882807,
    1179665.6346123146
   ],
   "end_xy": [
    2604507.276383321,
    1179665.2755239985
   ]
  },
  "max_3m": {
   "gradient_pct": 15.36219138387196,
   "start_distance_m": 647.0,
   "end_distance_m": 650.0,
   "midpoint_distance_m": 648.5,
   "start_elevation_m": 740.6591954054126,
   "end_elevation_m": 741.1200611469287,
   "start_xy": [
    2604215.482735106,
    1179476.203087953
   ],
   "end_xy": [
    2604214.287144493,
    1179473.4524448884
   ]
  }
 },
 "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": 0.006,
   "windows_resited": [
    2.0,
    3.0,
    5.0,
    10.0,
    20.0,
    25.0,
    50.0,
    100.0
   ],
   "windows_unresolved": []
  },
  "excluded_ranges_m": [
   [
    457.0,
    468.0
   ]
  ],
  "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_2603-1179_0.5_2056_5728.tif",
   "data/cache/ch/swissalti3d_2025_2604-1179_0.5_2056_5728.tif"
  ],
  "calculated_at": "2026-09-11T00:45:35+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-extent-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": [
   "2603-1179",
   "2604-1179"
  ],
  "route_cut_m": 1961.5,
  "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": "Wattenwil",
  "county": "Bern/Berne",
  "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)"
 }
}