{
 "ocl_version": "0.1.0",
 "name": "Route de Cray",
 "slug": "route-de-cray-2",
 "confidence": "A",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 23.769158506593158,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 477.0,
   "end_distance_m": 479.0,
   "start_elevation_m": 1525.770922139182,
   "end_elevation_m": 1526.2463053093138,
   "min_gradient_pct": -0.28639396499556824
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 23.62285878690879,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 477.0,
   "end_distance_m": 480.0,
   "start_elevation_m": 1525.770922139182,
   "end_elevation_m": 1526.4796079027892,
   "min_gradient_pct": -0.08979797735264583
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 23.457202109343598,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 475.0,
   "end_distance_m": 480.0,
   "start_elevation_m": 1525.306747797322,
   "end_elevation_m": 1526.4796079027892,
   "min_gradient_pct": 0.08652445227653516
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 22.805066321598133,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 472.0,
   "end_distance_m": 482.0,
   "start_elevation_m": 1524.6492869669178,
   "end_elevation_m": 1526.9297935990776,
   "min_gradient_pct": 0.8057495989874042
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 21.172227576544174,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 470.0,
   "end_distance_m": 490.0,
   "start_elevation_m": 1524.2598313342905,
   "end_elevation_m": 1528.4942768495994,
   "min_gradient_pct": 2.3402184914198187
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 20.39076464504342,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 469.0,
   "end_distance_m": 494.0,
   "start_elevation_m": 1524.0909031842878,
   "end_elevation_m": 1529.1885943455486,
   "min_gradient_pct": 3.4168575271869486
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 19.698504601811692,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 472.0,
   "end_distance_m": 522.0,
   "start_elevation_m": 1524.6492869669178,
   "end_elevation_m": 1534.4985392678236,
   "min_gradient_pct": 7.174491900359044
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 19.17657979242267,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 99.0,
   "end_distance_m": 199.0,
   "start_elevation_m": 1468.1023790454906,
   "end_elevation_m": 1487.2789588379133,
   "min_gradient_pct": 11.453310029950671
  }
 ],
 "shape": {
  "ascent_concentration": 0.322,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 227.0,
  "shape_class": "sustained"
 },
 "length_m": 581.6461731048084,
 "start_elevation_m": 1456.842735830079,
 "end_elevation_m": 1539.8490152978397,
 "endpoint_gain_m": 83.0062794677608,
 "overall_gradient_pct": 14.27092333895639,
 "accumulated_ascent_m": 83.03752971733888,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 23.457202109343598,
   "start_distance_m": 475.0,
   "end_distance_m": 480.0,
   "midpoint_distance_m": 477.5,
   "start_elevation_m": 1525.306747797322,
   "end_elevation_m": 1526.4796079027892,
   "start_xy": [
    2573967.1854389515,
    1147235.0577154472
   ],
   "end_xy": [
    2573971.8768194434,
    1147233.3284459272
   ]
  },
  "max_10m": {
   "gradient_pct": 22.805066321598133,
   "start_distance_m": 472.0,
   "end_distance_m": 482.0,
   "midpoint_distance_m": 477.0,
   "start_elevation_m": 1524.6492869669178,
   "end_elevation_m": 1526.9297935990776,
   "start_xy": [
    2573964.3549198215,
    1147236.0517717577
   ],
   "end_xy": [
    2573973.7614083877,
    1147232.6644611014
   ]
  },
  "max_20m": {
   "gradient_pct": 21.172227576544174,
   "start_distance_m": 470.0,
   "end_distance_m": 490.0,
   "midpoint_distance_m": 480.0,
   "start_elevation_m": 1524.2598313342905,
   "end_elevation_m": 1528.4942768495994,
   "start_xy": [
    2573962.3752156366,
    1147236.273679283
   ],
   "end_xy": [
    2573981.668592929,
    1147232.2651171726
   ]
  },
  "max_25m": {
   "gradient_pct": 20.39076464504342,
   "start_distance_m": 469.0,
   "end_distance_m": 494.0,
   "midpoint_distance_m": 481.5,
   "start_elevation_m": 1524.0909031842878,
   "end_elevation_m": 1529.1885943455486,
   "start_xy": [
    2573961.3767449325,
    1147236.3289609507
   ],
   "end_xy": [
    2573985.5969344736,
    1147233.0188603064
   ]
  },
  "max_50m": {
   "gradient_pct": 19.698504601811692,
   "start_distance_m": 472.0,
   "end_distance_m": 522.0,
   "midpoint_distance_m": 497.0,
   "start_elevation_m": 1524.6492869669178,
   "end_elevation_m": 1534.4985392678236,
   "start_xy": [
    2573964.3549198215,
    1147236.0517717577
   ],
   "end_xy": [
    2574012.8087618793,
    1147239.5221289848
   ]
  },
  "max_100m": {
   "gradient_pct": 19.17657979242267,
   "start_distance_m": 99.0,
   "end_distance_m": 199.0,
   "midpoint_distance_m": 149.0,
   "start_elevation_m": 1468.1023790454906,
   "end_elevation_m": 1487.2789588379133,
   "start_xy": [
    2573973.6267138743,
    1147125.7741579437
   ],
   "end_xy": [
    2574068.3354923334,
    1147157.5720838758
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": 0.08652445227653516,
   "start_distance_m": 551.0,
   "end_distance_m": 556.0,
   "midpoint_distance_m": 553.5,
   "start_elevation_m": 1538.3591420090186,
   "end_elevation_m": 1538.3634682316324,
   "start_xy": [
    2574040.446726804,
    1147247.1045852215
   ],
   "end_xy": [
    2574045.3737726538,
    1147246.2535773085
   ]
  },
  "min_10m": {
   "gradient_pct": 0.8057495989874042,
   "start_distance_m": 548.0,
   "end_distance_m": 558.0,
   "midpoint_distance_m": 553.0,
   "start_elevation_m": 1538.3190356433224,
   "end_elevation_m": 1538.3996106032212,
   "start_xy": [
    2574037.474988431,
    1147247.3765476479
   ],
   "end_xy": [
    2574047.344664006,
    1147245.91359606
   ]
  },
  "min_20m": {
   "gradient_pct": 2.3402184914198187,
   "start_distance_m": 544.0,
   "end_distance_m": 564.0,
   "midpoint_distance_m": 554.0,
   "start_elevation_m": 1538.1498708150207,
   "end_elevation_m": 1538.6179145133046,
   "start_xy": [
    2574033.5097060595,
    1147246.9166309233
   ],
   "end_xy": [
    2574053.2569730007,
    1147244.8915427309
   ]
  },
  "min_25m": {
   "gradient_pct": 3.4168575271869486,
   "start_distance_m": 542.0,
   "end_distance_m": 567.0,
   "midpoint_distance_m": 554.5,
   "start_elevation_m": 1537.9955354254266,
   "end_elevation_m": 1538.8497498072234,
   "start_xy": [
    2574031.5824641474,
    1147246.3823077048
   ],
   "end_xy": [
    2574056.2313756817,
    1147244.5640373703
   ]
  },
  "min_50m": {
   "gradient_pct": 7.174491900359044,
   "start_distance_m": 531.0,
   "end_distance_m": 581.0,
   "midpoint_distance_m": 556.0,
   "start_elevation_m": 1536.2682516590191,
   "end_elevation_m": 1539.8554976091987,
   "start_xy": [
    2574021.338926647,
    1147242.391749908
   ],
   "end_xy": [
    2574064.9225704884,
    1147252.360517859
   ]
  },
  "min_100m": {
   "gradient_pct": 11.453310029950671,
   "start_distance_m": 0.0,
   "end_distance_m": 100.0,
   "midpoint_distance_m": 50.0,
   "start_elevation_m": 1456.842735830079,
   "end_elevation_m": 1468.2960458600296,
   "start_xy": [
    2573894.119,
    1147106.656
   ],
   "end_xy": [
    2573974.5333816414,
    1147126.1960033658
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 23.769158506593158,
   "start_distance_m": 477.0,
   "end_distance_m": 479.0,
   "midpoint_distance_m": 478.0,
   "start_elevation_m": 1525.770922139182,
   "end_elevation_m": 1526.2463053093138,
   "start_xy": [
    2573969.063947658,
    1147234.3713983083
   ],
   "end_xy": [
    2573970.9390542777,
    1147233.6757155284
   ]
  },
  "max_3m": {
   "gradient_pct": 23.62285878690879,
   "start_distance_m": 477.0,
   "end_distance_m": 480.0,
   "midpoint_distance_m": 478.5,
   "start_elevation_m": 1525.770922139182,
   "end_elevation_m": 1526.4796079027892,
   "start_xy": [
    2573969.063947658,
    1147234.3713983083
   ],
   "end_xy": [
    2573971.8768194434,
    1147233.3284459272
   ]
  }
 },
 "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_2021_2573-1147_0.5_2056_5728.tif",
   "data/cache/ch/swissalti3d_2021_2574-1147_0.5_2056_5728.tif"
  ],
  "calculated_at": "2026-09-15T21:54:52+00:00",
  "road_source": "OpenStreetMap (local PBF extract)",
  "road_attribution": "\u00a9 OpenStreetMap contributors, ODbL",
  "osm_pbf_path": "data/cache/pbf/switzerland-2026-09-10.osm.pbf",
  "osm_snapshot": "2026-09-09T20:21:20Z",
  "run_id": "retro-260915-dogleg-all",
  "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": [
   "2573-1147",
   "2574-1147"
  ],
  "climb_origin": "discovered",
  "canopy_check": "unavailable \u2014 no surface model (DSM or point cloud) registered for this coverage",
  "structure_own_ways": "none \u2014 the route carried no way list; own decks unmasked",
  "license": "ODbL-1.0",
  "license_url": "https://howsteep.org/licensing"
 },
 "area": {
  "place": "Rossini\u00e8re",
  "county": "Vaud",
  "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)"
 }
}