{
 "ocl_version": "0.1.0",
 "name": "Gartenstrasse",
 "slug": "gartenstrasse-3",
 "confidence": "A",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 27.456902951973916,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 491.0,
   "end_distance_m": 493.0,
   "start_elevation_m": 666.2158766388706,
   "end_elevation_m": 666.76501469791,
   "min_gradient_pct": -12.239381554104511
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 26.347905854705306,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 492.0,
   "end_distance_m": 495.0,
   "start_elevation_m": 666.5232303816,
   "end_elevation_m": 667.3136675572412,
   "min_gradient_pct": -12.09277641338152
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 24.616145034308374,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 490.0,
   "end_distance_m": 495.0,
   "start_elevation_m": 666.0828603055257,
   "end_elevation_m": 667.3136675572412,
   "min_gradient_pct": -11.686306005590268
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 23.42466091456913,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 491.0,
   "end_distance_m": 501.0,
   "start_elevation_m": 666.2158766388706,
   "end_elevation_m": 668.5583427303275,
   "min_gradient_pct": -11.461602760667802
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 21.058497828406644,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 487.0,
   "end_distance_m": 507.0,
   "start_elevation_m": 665.4251029371892,
   "end_elevation_m": 669.6368025028705,
   "min_gradient_pct": -11.217600101372796
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 20.36379115249838,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 479.0,
   "end_distance_m": 504.0,
   "start_elevation_m": 664.0282828479687,
   "end_elevation_m": 669.1192306360933,
   "min_gradient_pct": -11.166520953886902
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 18.839863145070012,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 468.0,
   "end_distance_m": 518.0,
   "start_elevation_m": 662.0318975897557,
   "end_elevation_m": 671.4518291622907,
   "min_gradient_pct": -10.581736669057591
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 17.19137430950593,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 429.0,
   "end_distance_m": 529.0,
   "start_elevation_m": 655.8542700324648,
   "end_elevation_m": 673.0456443419707,
   "min_gradient_pct": -9.60374146890922
  }
 ],
 "shape": {
  "ascent_concentration": 0.505,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 260.0,
  "shape_class": "stepped"
 },
 "length_m": 2241.7125347700658,
 "start_elevation_m": 621.9270277636681,
 "end_elevation_m": 729.4471614050425,
 "endpoint_gain_m": 107.5201336413744,
 "overall_gradient_pct": 4.796339047655939,
 "accumulated_ascent_m": 138.8112270097672,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 24.616145034308374,
   "start_distance_m": 490.0,
   "end_distance_m": 495.0,
   "midpoint_distance_m": 492.5,
   "start_elevation_m": 666.0828603055257,
   "end_elevation_m": 667.3136675572412,
   "start_xy": [
    2704012.286793645,
    1257099.075185731
   ],
   "end_xy": [
    2704017.2470245296,
    1257099.7045580924
   ]
  },
  "max_10m": {
   "gradient_pct": 23.42466091456913,
   "start_distance_m": 491.0,
   "end_distance_m": 501.0,
   "midpoint_distance_m": 496.0,
   "start_elevation_m": 666.2158766388706,
   "end_elevation_m": 668.5583427303275,
   "start_xy": [
    2704013.278839822,
    1257099.2010602034
   ],
   "end_xy": [
    2704023.1993015916,
    1257100.4598049258
   ]
  },
  "max_20m": {
   "gradient_pct": 21.058497828406644,
   "start_distance_m": 487.0,
   "end_distance_m": 507.0,
   "midpoint_distance_m": 497.0,
   "start_elevation_m": 665.4251029371892,
   "end_elevation_m": 669.6368025028705,
   "start_xy": [
    2704009.3106551142,
    1257098.6975623143
   ],
   "end_xy": [
    2704029.166330195,
    1257100.8505295184
   ]
  },
  "max_25m": {
   "gradient_pct": 20.36379115249838,
   "start_distance_m": 479.0,
   "end_distance_m": 504.0,
   "midpoint_distance_m": 491.5,
   "start_elevation_m": 664.0282828479687,
   "end_elevation_m": 669.1192306360933,
   "start_xy": [
    2704001.3742856984,
    1257097.6905665365
   ],
   "end_xy": [
    2704026.1754401224,
    1257100.8374283426
   ]
  },
  "max_50m": {
   "gradient_pct": 18.839863145070012,
   "start_distance_m": 468.0,
   "end_distance_m": 518.0,
   "midpoint_distance_m": 493.0,
   "start_elevation_m": 662.0318975897557,
   "end_elevation_m": 671.4518291622907,
   "start_xy": [
    2703990.6686044885,
    1257095.5672801696
   ],
   "end_xy": [
    2704040.1550371107,
    1257100.3522120262
   ]
  },
  "max_100m": {
   "gradient_pct": 17.19137430950593,
   "start_distance_m": 429.0,
   "end_distance_m": 529.0,
   "midpoint_distance_m": 479.0,
   "start_elevation_m": 655.8542700324648,
   "end_elevation_m": 673.0456443419707,
   "start_xy": [
    2703955.457858136,
    1257078.814548384
   ],
   "end_xy": [
    2704051.1437440263,
    1257099.8538945343
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -11.686306005590268,
   "start_distance_m": 1268.0,
   "end_distance_m": 1273.0,
   "midpoint_distance_m": 1270.5,
   "start_elevation_m": 721.2603025273945,
   "end_elevation_m": 720.675987227115,
   "start_xy": [
    2704679.942669856,
    1257206.9500001378
   ],
   "end_xy": [
    2704683.805156834,
    1257210.1250897972
   ]
  },
  "min_10m": {
   "gradient_pct": -11.461602760667802,
   "start_distance_m": 1265.0,
   "end_distance_m": 1275.0,
   "midpoint_distance_m": 1270.0,
   "start_elevation_m": 721.601485347707,
   "end_elevation_m": 720.4553250716402,
   "start_xy": [
    2704677.625177669,
    1257205.0449463422
   ],
   "end_xy": [
    2704685.350151625,
    1257211.395125661
   ]
  },
  "min_20m": {
   "gradient_pct": -11.217600101372796,
   "start_distance_m": 1265.0,
   "end_distance_m": 1285.0,
   "midpoint_distance_m": 1275.0,
   "start_elevation_m": 721.601485347707,
   "end_elevation_m": 719.3579653274325,
   "start_xy": [
    2704677.625177669,
    1257205.0449463422
   ],
   "end_xy": [
    2704693.4544714387,
    1257217.2501019347
   ]
  },
  "min_25m": {
   "gradient_pct": -11.166520953886902,
   "start_distance_m": 1261.0,
   "end_distance_m": 1286.0,
   "midpoint_distance_m": 1273.5,
   "start_elevation_m": 722.040918754425,
   "end_elevation_m": 719.2492885159533,
   "start_xy": [
    2704674.535188087,
    1257202.5048746145
   ],
   "end_xy": [
    2704694.268730049,
    1257217.8306042308
   ]
  },
  "min_50m": {
   "gradient_pct": -10.581736669057591,
   "start_distance_m": 1252.0,
   "end_distance_m": 1302.0,
   "midpoint_distance_m": 1277.0,
   "start_elevation_m": 722.9533304511017,
   "end_elevation_m": 717.6624621165729,
   "start_xy": [
    2704667.5827115267,
    1257196.7897132277
   ],
   "end_xy": [
    2704707.572535567,
    1257226.6669591684
   ]
  },
  "min_100m": {
   "gradient_pct": -9.60374146890922,
   "start_distance_m": 1231.0,
   "end_distance_m": 1331.0,
   "midpoint_distance_m": 1281.0,
   "start_elevation_m": 724.7881441410602,
   "end_elevation_m": 715.184402672151,
   "start_xy": [
    2704650.486002189,
    1257184.8190742133
   ],
   "end_xy": [
    2704734.181409682,
    1257237.7335606448
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 27.456902951973916,
   "start_distance_m": 491.0,
   "end_distance_m": 493.0,
   "midpoint_distance_m": 492.0,
   "start_elevation_m": 666.2158766388706,
   "end_elevation_m": 666.76501469791,
   "start_xy": [
    2704013.278839822,
    1257099.2010602034
   ],
   "end_xy": [
    2704015.262932176,
    1257099.4528091478
   ]
  },
  "max_3m": {
   "gradient_pct": 26.347905854705306,
   "start_distance_m": 492.0,
   "end_distance_m": 495.0,
   "midpoint_distance_m": 493.5,
   "start_elevation_m": 666.5232303816,
   "end_elevation_m": 667.3136675572412,
   "start_xy": [
    2704014.270885999,
    1257099.3269346757
   ],
   "end_xy": [
    2704017.2470245296,
    1257099.7045580924
   ]
  }
 },
 "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"
  ]
 },
 "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_2020_2703-1257_0.5_2056_5728.tif",
   "data/cache/ch/swissalti3d_2020_2704-1257_0.5_2056_5728.tif",
   "data/cache/ch/swissalti3d_2020_2705-1257_0.5_2056_5728.tif"
  ],
  "calculated_at": "2026-09-11T03:19:32+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-run7-260911",
  "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": [
   "2703-1257",
   "2704-1257",
   "2705-1257"
  ],
  "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": "Zell (ZH)",
  "county": "Z\u00fcrich",
  "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)"
 }
}