{
 "ocl_version": "0.1.0",
 "name": "Zeblasstrasse",
 "slug": "zeblasstrasse",
 "confidence": "A",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 34.005486519663464,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 546.0,
   "end_distance_m": 548.0,
   "start_elevation_m": 2109.7641381231356,
   "end_elevation_m": 2110.444247853529,
   "min_gradient_pct": 0.851395781046449
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 33.723423784810315,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 545.0,
   "end_distance_m": 548.0,
   "start_elevation_m": 2109.4325451399845,
   "end_elevation_m": 2110.444247853529,
   "min_gradient_pct": 0.8239418565760085
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 27.881888692763823,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 545.0,
   "end_distance_m": 550.0,
   "start_elevation_m": 2109.4325451399845,
   "end_elevation_m": 2110.8266395746227,
   "min_gradient_pct": 1.4530083214503975
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 25.515623329488335,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 2163.0,
   "end_distance_m": 2173.0,
   "start_elevation_m": 2378.6317664623175,
   "end_elevation_m": 2381.1833287952663,
   "min_gradient_pct": 1.6659445167579179
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 24.956279364505463,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 2155.0,
   "end_distance_m": 2175.0,
   "start_elevation_m": 2376.6788713228098,
   "end_elevation_m": 2381.670127195711,
   "min_gradient_pct": 2.2893072097667755
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 24.665417577551125,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 2150.0,
   "end_distance_m": 2175.0,
   "start_elevation_m": 2375.503772801323,
   "end_elevation_m": 2381.670127195711,
   "min_gradient_pct": 2.8064348997468187
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 23.32597211490065,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 2150.0,
   "end_distance_m": 2200.0,
   "start_elevation_m": 2375.503772801323,
   "end_elevation_m": 2387.1667588587734,
   "min_gradient_pct": 6.140199284320261
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 22.638430690113182,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 2095.0,
   "end_distance_m": 2195.0,
   "start_elevation_m": 2363.455566067716,
   "end_elevation_m": 2386.0939967578292,
   "min_gradient_pct": 10.309220985666343
  }
 ],
 "shape": {
  "ascent_concentration": 0.287,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 718.0,
  "shape_class": "sustained"
 },
 "length_m": 2880.4649435736137,
 "start_elevation_m": 2026.4254463847437,
 "end_elevation_m": 2486.1853617656084,
 "endpoint_gain_m": 459.75991538086464,
 "overall_gradient_pct": 15.961309177068793,
 "accumulated_ascent_m": 459.77747081119696,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 27.881888692763823,
   "start_distance_m": 545.0,
   "end_distance_m": 550.0,
   "midpoint_distance_m": 547.5,
   "start_elevation_m": 2109.4325451399845,
   "end_elevation_m": 2110.8266395746227,
   "start_xy": [
    2820049.283510648,
    1202869.6557185175
   ],
   "end_xy": [
    2820050.010892347,
    1202874.5930950101
   ]
  },
  "max_10m": {
   "gradient_pct": 25.515623329488335,
   "start_distance_m": 2163.0,
   "end_distance_m": 2173.0,
   "midpoint_distance_m": 2168.0,
   "start_elevation_m": 2378.6317664623175,
   "end_elevation_m": 2381.1833287952663,
   "start_xy": [
    2819219.151516263,
    1203224.5023128588
   ],
   "end_xy": [
    2819209.260632034,
    1203225.975543719
   ]
  },
  "max_20m": {
   "gradient_pct": 24.956279364505463,
   "start_distance_m": 2155.0,
   "end_distance_m": 2175.0,
   "midpoint_distance_m": 2165.0,
   "start_elevation_m": 2376.6788713228098,
   "end_elevation_m": 2381.670127195711,
   "start_xy": [
    2819227.064223646,
    1203223.3237281707
   ],
   "end_xy": [
    2819207.2617333937,
    1203225.928685421
   ]
  },
  "max_25m": {
   "gradient_pct": 24.665417577551125,
   "start_distance_m": 2150.0,
   "end_distance_m": 2175.0,
   "midpoint_distance_m": 2162.5,
   "start_elevation_m": 2375.503772801323,
   "end_elevation_m": 2381.670127195711,
   "start_xy": [
    2819232.026039398,
    1203222.9744279352
   ],
   "end_xy": [
    2819207.2617333937,
    1203225.928685421
   ]
  },
  "max_50m": {
   "gradient_pct": 23.32597211490065,
   "start_distance_m": 2150.0,
   "end_distance_m": 2200.0,
   "midpoint_distance_m": 2175.0,
   "start_elevation_m": 2375.503772801323,
   "end_elevation_m": 2387.1667588587734,
   "start_xy": [
    2819232.026039398,
    1203222.9744279352
   ],
   "end_xy": [
    2819182.343442968,
    1203224.3705761363
   ]
  },
  "max_100m": {
   "gradient_pct": 22.638430690113182,
   "start_distance_m": 2095.0,
   "end_distance_m": 2195.0,
   "midpoint_distance_m": 2145.0,
   "start_elevation_m": 2363.455566067716,
   "end_elevation_m": 2386.0939967578292,
   "start_xy": [
    2819284.9225495644,
    1203214.7101877742
   ],
   "end_xy": [
    2819187.2970643924,
    1203225.050013247
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": 1.4530083214503975,
   "start_distance_m": 1862.0,
   "end_distance_m": 1867.0,
   "midpoint_distance_m": 1864.5,
   "start_elevation_m": 2326.6974601778875,
   "end_elevation_m": 2326.77011059396,
   "start_xy": [
    2819470.5883302633,
    1203184.7932072547
   ],
   "end_xy": [
    2819466.349662444,
    1203182.1410958092
   ]
  },
  "min_10m": {
   "gradient_pct": 1.6659445167579179,
   "start_distance_m": 1864.0,
   "end_distance_m": 1874.0,
   "midpoint_distance_m": 1869.0,
   "start_elevation_m": 2326.736648989105,
   "end_elevation_m": 2326.903243440781,
   "start_xy": [
    2819468.892863136,
    1203183.7323626764
   ],
   "end_xy": [
    2819460.4155274974,
    1203178.4281397855
   ]
  },
  "min_20m": {
   "gradient_pct": 2.2893072097667755,
   "start_distance_m": 1860.0,
   "end_distance_m": 1880.0,
   "midpoint_distance_m": 1870.0,
   "start_elevation_m": 2326.6269274643028,
   "end_elevation_m": 2327.084788906256,
   "start_xy": [
    2819472.2837973908,
    1203185.8540518328
   ],
   "end_xy": [
    2819454.546523073,
    1203177.212729936
   ]
  },
  "min_25m": {
   "gradient_pct": 2.8064348997468187,
   "start_distance_m": 1855.0,
   "end_distance_m": 1880.0,
   "midpoint_distance_m": 1867.5,
   "start_elevation_m": 2326.3831801813194,
   "end_elevation_m": 2327.084788906256,
   "start_xy": [
    2819476.52246521,
    1203188.5061632784
   ],
   "end_xy": [
    2819454.546523073,
    1203177.212729936
   ]
  },
  "min_50m": {
   "gradient_pct": 6.140199284320261,
   "start_distance_m": 1837.0,
   "end_distance_m": 1887.0,
   "midpoint_distance_m": 1862.0,
   "start_elevation_m": 2324.6724246401873,
   "end_elevation_m": 2327.7425242823474,
   "start_xy": [
    2819492.634170955,
    1203196.5296169722
   ],
   "end_xy": [
    2819447.6422809307,
    1203176.5329097274
   ]
  },
  "min_100m": {
   "gradient_pct": 10.309220985666343,
   "start_distance_m": 1792.0,
   "end_distance_m": 1892.0,
   "midpoint_distance_m": 1842.0,
   "start_elevation_m": 2318.072915543551,
   "end_elevation_m": 2328.3821365292174,
   "start_xy": [
    2819536.258953171,
    1203196.7903184395
   ],
   "end_xy": [
    2819442.6583328038,
    1203176.9332359293
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 34.005486519663464,
   "start_distance_m": 546.0,
   "end_distance_m": 548.0,
   "midpoint_distance_m": 547.0,
   "start_elevation_m": 2109.7641381231356,
   "end_elevation_m": 2110.444247853529,
   "start_xy": [
    2820049.48937339,
    1202870.627238485
   ],
   "end_xy": [
    2820049.7501328685,
    1202872.6101667476
   ]
  },
  "max_3m": {
   "gradient_pct": 33.723423784810315,
   "start_distance_m": 545.0,
   "end_distance_m": 548.0,
   "midpoint_distance_m": 546.5,
   "start_elevation_m": 2109.4325451399845,
   "end_elevation_m": 2110.444247853529,
   "start_xy": [
    2820049.283510648,
    1202869.6557185175
   ],
   "end_xy": [
    2820049.7501328685,
    1202872.6101667476
   ]
  }
 },
 "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_2818-1202_0.5_2056_5728.tif",
   "data/cache/ch/swissalti3d_2023_2818-1203_0.5_2056_5728.tif",
   "data/cache/ch/swissalti3d_2023_2819-1202_0.5_2056_5728.tif",
   "data/cache/ch/swissalti3d_2023_2819-1203_0.5_2056_5728.tif",
   "data/cache/ch/swissalti3d_2023_2820-1202_0.5_2056_5728.tif",
   "data/cache/ch/swissalti3d_2023_2820-1203_0.5_2056_5728.tif"
  ],
  "calculated_at": "2026-09-10T19:58:39+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": [
   "2818-1202",
   "2818-1203",
   "2819-1202",
   "2819-1203",
   "2820-1202",
   "2820-1203"
  ],
  "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": "Samnaun",
  "county": "Graub\u00fcnden/Grischun/Grigioni",
  "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)"
 }
}