{
 "ocl_version": "0.1.0",
 "name": "B\u00fchlstrasse",
 "slug": "buhlstrasse-3",
 "confidence": "A",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 23.29956402114135,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 758.0,
   "end_distance_m": 760.0,
   "start_elevation_m": 482.92798750915676,
   "end_elevation_m": 483.3939787895796,
   "min_gradient_pct": -15.705442879377074
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 22.279379887341594,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 855.0,
   "end_distance_m": 858.0,
   "start_elevation_m": 499.6913642551867,
   "end_elevation_m": 500.359745651807,
   "min_gradient_pct": -15.100895768944156
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 21.565523162877298,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 853.0,
   "end_distance_m": 858.0,
   "start_elevation_m": 499.2814694936631,
   "end_elevation_m": 500.359745651807,
   "min_gradient_pct": -14.537555166238008
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 21.257730341768593,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 758.0,
   "end_distance_m": 768.0,
   "start_elevation_m": 482.92798750915676,
   "end_elevation_m": 485.0537605433336,
   "min_gradient_pct": -13.902981992457057
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 21.086499079360408,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 758.0,
   "end_distance_m": 778.0,
   "start_elevation_m": 482.92798750915676,
   "end_elevation_m": 487.14528732502885,
   "min_gradient_pct": -13.504087054607794
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 20.685804153747085,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 758.0,
   "end_distance_m": 783.0,
   "start_elevation_m": 482.92798750915676,
   "end_elevation_m": 488.09943854759354,
   "min_gradient_pct": -13.318281463514495
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 18.969683498324002,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 734.0,
   "end_distance_m": 784.0,
   "start_elevation_m": 478.7942776405928,
   "end_elevation_m": 488.2791193897548,
   "min_gradient_pct": -10.889232641752983
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 17.43175814265021,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 758.0,
   "end_distance_m": 858.0,
   "start_elevation_m": 482.92798750915676,
   "end_elevation_m": 500.359745651807,
   "min_gradient_pct": -6.32822556565759
  }
 ],
 "shape": {
  "ascent_concentration": 0.496,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 138.0,
  "shape_class": "stepped"
 },
 "length_m": 980.3466783374154,
 "start_elevation_m": 439.65680897178476,
 "end_elevation_m": 507.4855845361187,
 "endpoint_gain_m": 67.82877556433397,
 "overall_gradient_pct": 6.918856060120059,
 "accumulated_ascent_m": 76.59465478001766,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 21.565523162877298,
   "start_distance_m": 853.0,
   "end_distance_m": 858.0,
   "midpoint_distance_m": 855.5,
   "start_elevation_m": 499.2814694936631,
   "end_elevation_m": 500.359745651807,
   "start_xy": [
    2627451.4622959998,
    1241843.231094008
   ],
   "end_xy": [
    2627456.2240853324,
    1241844.6763446347
   ]
  },
  "max_10m": {
   "gradient_pct": 21.257730341768593,
   "start_distance_m": 758.0,
   "end_distance_m": 768.0,
   "midpoint_distance_m": 763.0,
   "start_elevation_m": 482.92798750915676,
   "end_elevation_m": 485.0537605433336,
   "start_xy": [
    2627403.4389044708,
    1241811.3284382063
   ],
   "end_xy": [
    2627401.2502929787,
    1241821.0826308762
   ]
  },
  "max_20m": {
   "gradient_pct": 21.086499079360408,
   "start_distance_m": 758.0,
   "end_distance_m": 778.0,
   "midpoint_distance_m": 768.0,
   "start_elevation_m": 482.92798750915676,
   "end_elevation_m": 487.14528732502885,
   "start_xy": [
    2627403.4389044708,
    1241811.3284382063
   ],
   "end_xy": [
    2627398.63430626,
    1241830.7317304285
   ]
  },
  "max_25m": {
   "gradient_pct": 20.685804153747085,
   "start_distance_m": 758.0,
   "end_distance_m": 783.0,
   "midpoint_distance_m": 770.5,
   "start_elevation_m": 482.92798750915676,
   "end_elevation_m": 488.09943854759354,
   "start_xy": [
    2627403.4389044708,
    1241811.3284382063
   ],
   "end_xy": [
    2627396.8916854393,
    1241835.4181264716
   ]
  },
  "max_50m": {
   "gradient_pct": 18.969683498324002,
   "start_distance_m": 734.0,
   "end_distance_m": 784.0,
   "midpoint_distance_m": 759.0,
   "start_elevation_m": 478.7942776405928,
   "end_elevation_m": 488.2791193897548,
   "start_xy": [
    2627408.045727612,
    1241787.7819066227
   ],
   "end_xy": [
    2627396.523745041,
    1241836.347975848
   ]
  },
  "max_100m": {
   "gradient_pct": 17.43175814265021,
   "start_distance_m": 758.0,
   "end_distance_m": 858.0,
   "midpoint_distance_m": 808.0,
   "start_elevation_m": 482.92798750915676,
   "end_elevation_m": 500.359745651807,
   "start_xy": [
    2627403.4389044708,
    1241811.3284382063
   ],
   "end_xy": [
    2627456.2240853324,
    1241844.6763446347
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -14.537555166238008,
   "start_distance_m": 518.0,
   "end_distance_m": 523.0,
   "midpoint_distance_m": 520.5,
   "start_elevation_m": 459.60268890297846,
   "end_elevation_m": 458.87581114466656,
   "start_xy": [
    2627423.8934827354,
    1241616.7570656834
   ],
   "end_xy": [
    2627427.313199905,
    1241620.400093446
   ]
  },
  "min_10m": {
   "gradient_pct": -13.902981992457057,
   "start_distance_m": 514.0,
   "end_distance_m": 524.0,
   "midpoint_distance_m": 519.0,
   "start_elevation_m": 460.13589504986334,
   "end_elevation_m": 458.74559685061763,
   "start_xy": [
    2627421.4307885803,
    1241613.6050607164
   ],
   "end_xy": [
    2627428.0105801066,
    1241621.1167947438
   ]
  },
  "min_20m": {
   "gradient_pct": -13.504087054607794,
   "start_distance_m": 504.0,
   "end_distance_m": 524.0,
   "midpoint_distance_m": 514.0,
   "start_elevation_m": 461.4464142615392,
   "end_elevation_m": 458.74559685061763,
   "start_xy": [
    2627415.494466357,
    1241605.5580968747
   ],
   "end_xy": [
    2627428.0105801066,
    1241621.1167947438
   ]
  },
  "min_25m": {
   "gradient_pct": -13.318281463514495,
   "start_distance_m": 498.0,
   "end_distance_m": 523.0,
   "midpoint_distance_m": 510.5,
   "start_elevation_m": 462.2053815105452,
   "end_elevation_m": 458.87581114466656,
   "start_xy": [
    2627411.947123838,
    1241600.7190523474
   ],
   "end_xy": [
    2627427.313199905,
    1241620.400093446
   ]
  },
  "min_50m": {
   "gradient_pct": -10.889232641752983,
   "start_distance_m": 479.0,
   "end_distance_m": 529.0,
   "midpoint_distance_m": 504.0,
   "start_elevation_m": 463.77027912484135,
   "end_elevation_m": 458.32566280396486,
   "start_xy": [
    2627400.327376662,
    1241585.6950537947
   ],
   "end_xy": [
    2627431.5359409293,
    1241624.654661666
   ]
  },
  "min_100m": {
   "gradient_pct": -6.32822556565759,
   "start_distance_m": 450.0,
   "end_distance_m": 550.0,
   "midpoint_distance_m": 500.0,
   "start_elevation_m": 464.2292720225444,
   "end_elevation_m": 457.90104645688683,
   "start_xy": [
    2627376.2696547257,
    1241569.6958919324
   ],
   "end_xy": [
    2627449.258536902,
    1241635.9191209972
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 23.29956402114135,
   "start_distance_m": 758.0,
   "end_distance_m": 760.0,
   "midpoint_distance_m": 759.0,
   "start_elevation_m": 482.92798750915676,
   "end_elevation_m": 483.3939787895796,
   "start_xy": [
    2627403.4389044708,
    1241811.3284382063
   ],
   "end_xy": [
    2627403.0819255626,
    1241813.29632161
   ]
  },
  "max_3m": {
   "gradient_pct": 22.279379887341594,
   "start_distance_m": 855.0,
   "end_distance_m": 858.0,
   "midpoint_distance_m": 856.5,
   "start_elevation_m": 499.6913642551867,
   "end_elevation_m": 500.359745651807,
   "start_xy": [
    2627453.421128735,
    1241843.6111372276
   ],
   "end_xy": [
    2627456.2240853324,
    1241844.6763446347
   ]
  }
 },
 "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": [
   "descends_at_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_2626-1241_0.5_2056_5728.tif",
   "data/cache/ch/swissalti3d_2025_2627-1241_0.5_2056_5728.tif"
  ],
  "calculated_at": "2026-09-11T06:44:00+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-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": [
   "2626-1241",
   "2627-1241"
  ],
  "route_base_cut_m": 50.0,
  "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": "Egerkingen",
  "county": "Solothurn",
  "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)"
 }
}