{
 "ocl_version": "0.1.0",
 "name": "B\u00fcrchnerstrasse",
 "slug": "burchnerstrasse-3",
 "confidence": "A",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 13.717958919028206,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 2000.0,
   "end_distance_m": 2002.0,
   "start_elevation_m": 800.3415588807891,
   "end_elevation_m": 800.6159180591696,
   "min_gradient_pct": -3.37942834119076
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 13.07480198409697,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 7758.0,
   "end_distance_m": 7761.0,
   "start_elevation_m": 1256.6305360082586,
   "end_elevation_m": 1257.0227800677815,
   "min_gradient_pct": -3.3759693371810804
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 12.749297007803762,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 7756.0,
   "end_distance_m": 7761.0,
   "start_elevation_m": 1256.3853152173913,
   "end_elevation_m": 1257.0227800677815,
   "min_gradient_pct": -3.3563713947432916
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 12.457180322537624,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 7756.0,
   "end_distance_m": 7766.0,
   "start_elevation_m": 1256.3853152173913,
   "end_elevation_m": 1257.631033249645,
   "min_gradient_pct": -1.8105465634789653
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 11.68238446441137,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 7747.0,
   "end_distance_m": 7767.0,
   "start_elevation_m": 1255.4136706581849,
   "end_elevation_m": 1257.7501475510671,
   "min_gradient_pct": -1.1191108919945236
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 11.524658188565809,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 7742.0,
   "end_distance_m": 7767.0,
   "start_elevation_m": 1254.8689830039257,
   "end_elevation_m": 1257.7501475510671,
   "min_gradient_pct": -0.8204458136633548
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 10.90690559112818,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 7735.0,
   "end_distance_m": 7785.0,
   "start_elevation_m": 1254.1146784202494,
   "end_elevation_m": 1259.5681312158135,
   "min_gradient_pct": 0.5214832667475093
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 10.470392030341372,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 7711.0,
   "end_distance_m": 7811.0,
   "start_elevation_m": 1251.7210432850652,
   "end_elevation_m": 1262.1914353154066,
   "min_gradient_pct": 1.4424641574737507
  }
 ],
 "shape": {
  "ascent_concentration": 0.302,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 62.0,
  "shape_class": "sustained"
 },
 "length_m": 9014.495753398325,
 "start_elevation_m": 652.9456120937497,
 "end_elevation_m": 1351.0120945741992,
 "endpoint_gain_m": 698.0664824804495,
 "overall_gradient_pct": 7.743821746405385,
 "accumulated_ascent_m": 698.7350476508014,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 12.749297007803762,
   "start_distance_m": 7756.0,
   "end_distance_m": 7761.0,
   "midpoint_distance_m": 7758.5,
   "start_elevation_m": 1256.3853152173913,
   "end_elevation_m": 1257.0227800677815,
   "start_xy": [
    2630189.0696494975,
    1126389.5464180317
   ],
   "end_xy": [
    2630184.165399941,
    1126388.572592436
   ]
  },
  "max_10m": {
   "gradient_pct": 12.457180322537624,
   "start_distance_m": 7756.0,
   "end_distance_m": 7766.0,
   "midpoint_distance_m": 7761.0,
   "start_elevation_m": 1256.3853152173913,
   "end_elevation_m": 1257.631033249645,
   "start_xy": [
    2630189.0696494975,
    1126389.5464180317
   ],
   "end_xy": [
    2630179.845748185,
    1126386.09345758
   ]
  },
  "max_20m": {
   "gradient_pct": 11.68238446441137,
   "start_distance_m": 7747.0,
   "end_distance_m": 7767.0,
   "midpoint_distance_m": 7757.0,
   "start_elevation_m": 1255.4136706581849,
   "end_elevation_m": 1257.7501475510671,
   "start_xy": [
    2630198.014233895,
    1126389.4285750145
   ],
   "end_xy": [
    2630178.9993556314,
    1126385.566054504
   ]
  },
  "max_25m": {
   "gradient_pct": 11.524658188565809,
   "start_distance_m": 7742.0,
   "end_distance_m": 7767.0,
   "midpoint_distance_m": 7754.5,
   "start_elevation_m": 1254.8689830039257,
   "end_elevation_m": 1257.7501475510671,
   "start_xy": [
    2630202.4319592835,
    1126387.0868443737
   ],
   "end_xy": [
    2630178.9993556314,
    1126385.566054504
   ]
  },
  "max_50m": {
   "gradient_pct": 10.90690559112818,
   "start_distance_m": 7735.0,
   "end_distance_m": 7785.0,
   "midpoint_distance_m": 7760.0,
   "start_elevation_m": 1254.1146784202494,
   "end_elevation_m": 1259.5681312158135,
   "start_xy": [
    2630208.616774827,
    1126383.808421477
   ],
   "end_xy": [
    2630169.1515054717,
    1126370.4988875703
   ]
  },
  "max_100m": {
   "gradient_pct": 10.470392030341372,
   "start_distance_m": 7711.0,
   "end_distance_m": 7811.0,
   "midpoint_distance_m": 7761.0,
   "start_elevation_m": 1251.7210432850652,
   "end_elevation_m": 1262.1914353154066,
   "start_xy": [
    2630229.7651848826,
    1126372.4623869753
   ],
   "end_xy": [
    2630152.142584439,
    1126351.401155307
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -3.3563713947432916,
   "start_distance_m": 0.0,
   "end_distance_m": 5.0,
   "midpoint_distance_m": 2.5,
   "start_elevation_m": 652.9456120937497,
   "end_elevation_m": 652.7777935240125,
   "start_xy": [
    2633813.473,
    1126911.616
   ],
   "end_xy": [
    2633810.507508658,
    1126907.5903496055
   ]
  },
  "min_10m": {
   "gradient_pct": -1.8105465634789653,
   "start_distance_m": 8672.0,
   "end_distance_m": 8682.0,
   "midpoint_distance_m": 8677.0,
   "start_elevation_m": 1334.0399863185469,
   "end_elevation_m": 1333.858931662199,
   "start_xy": [
    2629344.4978906843,
    1126419.2457979152
   ],
   "end_xy": [
    2629342.8991632718,
    1126409.4055296031
   ]
  },
  "min_20m": {
   "gradient_pct": -1.1191108919945236,
   "start_distance_m": 8662.0,
   "end_distance_m": 8682.0,
   "midpoint_distance_m": 8672.0,
   "start_elevation_m": 1334.082753840598,
   "end_elevation_m": 1333.858931662199,
   "start_xy": [
    2629346.137900091,
    1126429.1103997391
   ],
   "end_xy": [
    2629342.8991632718,
    1126409.4055296031
   ]
  },
  "min_25m": {
   "gradient_pct": -0.8204458136633548,
   "start_distance_m": 8657.0,
   "end_distance_m": 8682.0,
   "midpoint_distance_m": 8669.5,
   "start_elevation_m": 1334.0640431156148,
   "end_elevation_m": 1333.858931662199,
   "start_xy": [
    2629346.957904794,
    1126434.0427006513
   ],
   "end_xy": [
    2629342.8991632718,
    1126409.4055296031
   ]
  },
  "min_50m": {
   "gradient_pct": 0.5214832667475093,
   "start_distance_m": 8641.0,
   "end_distance_m": 8691.0,
   "midpoint_distance_m": 8666.0,
   "start_elevation_m": 1333.8397597901296,
   "end_elevation_m": 1334.1005014235034,
   "start_xy": [
    2629355.609950908,
    1126447.1617895958
   ],
   "end_xy": [
    2629350.8675365346,
    1126405.4971285092
   ]
  },
  "min_100m": {
   "gradient_pct": 1.4424641574737507,
   "start_distance_m": 4216.0,
   "end_distance_m": 4316.0,
   "midpoint_distance_m": 4266.0,
   "start_elevation_m": 986.7820156178217,
   "end_elevation_m": 988.2244797752954,
   "start_xy": [
    2632347.1594138537,
    1126814.1715393947
   ],
   "end_xy": [
    2632248.7206644737,
    1126797.8580825026
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 13.717958919028206,
   "start_distance_m": 2000.0,
   "end_distance_m": 2002.0,
   "midpoint_distance_m": 2001.0,
   "start_elevation_m": 800.3415588807891,
   "end_elevation_m": 800.6159180591696,
   "start_xy": [
    2633479.391748747,
    1126752.5463046958
   ],
   "end_xy": [
    2633478.585295228,
    1126754.376504882
   ]
  },
  "max_3m": {
   "gradient_pct": 13.07480198409697,
   "start_distance_m": 7758.0,
   "end_distance_m": 7761.0,
   "midpoint_distance_m": 7759.5,
   "start_elevation_m": 1256.6305360082586,
   "end_elevation_m": 1257.0227800677815,
   "start_xy": [
    2630187.107949675,
    1126389.1568877934
   ],
   "end_xy": [
    2630184.165399941,
    1126388.572592436
   ]
  }
 },
 "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": []
 },
 "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_2024_2629-1126_0.5_2056_5728.tif",
   "data/cache/ch/swissalti3d_2024_2630-1126_0.5_2056_5728.tif",
   "data/cache/ch/swissalti3d_2024_2631-1126_0.5_2056_5728.tif",
   "data/cache/ch/swissalti3d_2024_2631-1127_0.5_2056_5728.tif",
   "data/cache/ch/swissalti3d_2024_2632-1126_0.5_2056_5728.tif",
   "data/cache/ch/swissalti3d_2024_2632-1127_0.5_2056_5728.tif",
   "data/cache/ch/swissalti3d_2024_2633-1126_0.5_2056_5728.tif",
   "data/cache/ch/swissalti3d_2024_2633-1127_0.5_2056_5728.tif"
  ],
  "calculated_at": "2026-09-10T20:16:05+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": [
   "2629-1126",
   "2630-1126",
   "2631-1126",
   "2631-1127",
   "2632-1126",
   "2632-1127",
   "2633-1126",
   "2633-1127"
  ],
  "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": "Visp",
  "county": "Valais/Wallis",
  "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)"
 }
}