{
 "ocl_version": "0.1.0",
 "name": "Route du Banchet",
 "slug": "route-du-banchet-2",
 "confidence": "B",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 36.703545710787466,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 844.0,
   "end_distance_m": 846.0,
   "start_elevation_m": 902.6245722704303,
   "end_elevation_m": 903.3586431846461,
   "min_gradient_pct": -21.315494794401957
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 34.00464948925522,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 845.0,
   "end_distance_m": 848.0,
   "start_elevation_m": 902.9815131673636,
   "end_elevation_m": 904.0016526520412,
   "min_gradient_pct": -14.435648851921693
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 31.89943972439778,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 843.0,
   "end_distance_m": 848.0,
   "start_elevation_m": 902.4066806658213,
   "end_elevation_m": 904.0016526520412,
   "min_gradient_pct": -3.522698313897763
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 24.262145269319717,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 994.0,
   "end_distance_m": 1004.0,
   "start_elevation_m": 925.0501793143138,
   "end_elevation_m": 927.4763938412458,
   "min_gradient_pct": -0.3907403883488314
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 21.812262942144116,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 987.0,
   "end_distance_m": 1007.0,
   "start_elevation_m": 923.7524807474215,
   "end_elevation_m": 928.1149333358503,
   "min_gradient_pct": 2.228618947893324
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 20.610982611043255,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 982.0,
   "end_distance_m": 1007.0,
   "start_elevation_m": 922.9621876830895,
   "end_elevation_m": 928.1149333358503,
   "min_gradient_pct": 2.3031892816779873
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 18.955163040145635,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 957.0,
   "end_distance_m": 1007.0,
   "start_elevation_m": 918.6373518157775,
   "end_elevation_m": 928.1149333358503,
   "min_gradient_pct": 2.8958068267954786
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 17.115921232070605,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 906.0,
   "end_distance_m": 1006.0,
   "start_elevation_m": 910.7957425158534,
   "end_elevation_m": 927.911663747924,
   "min_gradient_pct": 3.435508318765301
  }
 ],
 "shape": {
  "ascent_concentration": 0.399,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 73.0,
  "shape_class": "sustained"
 },
 "length_m": 1007.544881977455,
 "start_elevation_m": 842.7962121186376,
 "end_elevation_m": 928.193460009721,
 "endpoint_gain_m": 85.39724789108334,
 "overall_gradient_pct": 8.475776059075272,
 "accumulated_ascent_m": 86.78383411524976,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 31.89943972439778,
   "start_distance_m": 843.0,
   "end_distance_m": 848.0,
   "midpoint_distance_m": 845.5,
   "start_elevation_m": 902.4066806658213,
   "end_elevation_m": 904.0016526520412,
   "start_xy": [
    906000.2100683516,
    6422612.179195716
   ],
   "end_xy": [
    905995.26615212,
    6422612.925983701
   ]
  },
  "max_10m": {
   "gradient_pct": 24.262145269319717,
   "start_distance_m": 994.0,
   "end_distance_m": 1004.0,
   "midpoint_distance_m": 999.0,
   "start_elevation_m": 925.0501793143138,
   "end_elevation_m": 927.4763938412458,
   "start_xy": [
    905857.0328076024,
    6422610.986944349
   ],
   "end_xy": [
    905847.5363737289,
    6422614.1202722415
   ]
  },
  "max_20m": {
   "gradient_pct": 21.812262942144116,
   "start_distance_m": 987.0,
   "end_distance_m": 1007.0,
   "midpoint_distance_m": 997.0,
   "start_elevation_m": 923.7524807474215,
   "end_elevation_m": 928.1149333358503,
   "start_xy": [
    905863.8583692042,
    6422609.493171601
   ],
   "end_xy": [
    905844.6874435669,
    6422615.06027061
   ]
  },
  "max_25m": {
   "gradient_pct": 20.610982611043255,
   "start_distance_m": 982.0,
   "end_distance_m": 1007.0,
   "midpoint_distance_m": 994.5,
   "start_elevation_m": 922.9621876830895,
   "end_elevation_m": 928.1149333358503,
   "start_xy": [
    905868.7504222845,
    6422609.147959942
   ],
   "end_xy": [
    905844.6874435669,
    6422615.06027061
   ]
  },
  "max_50m": {
   "gradient_pct": 18.955163040145635,
   "start_distance_m": 957.0,
   "end_distance_m": 1007.0,
   "midpoint_distance_m": 982.0,
   "start_elevation_m": 918.6373518157775,
   "end_elevation_m": 928.1149333358503,
   "start_xy": [
    905893.1252424761,
    6422609.271469766
   ],
   "end_xy": [
    905844.6874435669,
    6422615.06027061
   ]
  },
  "max_100m": {
   "gradient_pct": 17.115921232070605,
   "start_distance_m": 906.0,
   "end_distance_m": 1006.0,
   "midpoint_distance_m": 956.0,
   "start_elevation_m": 910.7957425158534,
   "end_elevation_m": 927.911663747924,
   "start_xy": [
    905937.3876275623,
    6422610.439104093
   ],
   "end_xy": [
    905845.6370869542,
    6422614.746937821
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -3.522698313897763,
   "start_distance_m": 0.0,
   "end_distance_m": 5.0,
   "midpoint_distance_m": 2.5,
   "start_elevation_m": 842.7962121186376,
   "end_elevation_m": 842.6200772029428,
   "start_xy": [
    906557.658,
    6422095.553
   ],
   "end_xy": [
    906556.7480991841,
    6422100.4695080165
   ]
  },
  "min_10m": {
   "gradient_pct": -0.3907403883488314,
   "start_distance_m": 0.0,
   "end_distance_m": 10.0,
   "midpoint_distance_m": 5.0,
   "start_elevation_m": 842.7962121186376,
   "end_elevation_m": 842.7571380798028,
   "start_xy": [
    906557.658,
    6422095.553
   ],
   "end_xy": [
    906555.392544077,
    6422105.256192722
   ]
  },
  "min_20m": {
   "gradient_pct": 2.228618947893324,
   "start_distance_m": 596.0,
   "end_distance_m": 616.0,
   "midpoint_distance_m": 606.0,
   "start_elevation_m": 887.1558715812956,
   "end_elevation_m": 887.6015953708743,
   "start_xy": [
    906188.2517472891,
    6422497.785855396
   ],
   "end_xy": [
    906179.1344220325,
    6422515.586821104
   ]
  },
  "min_25m": {
   "gradient_pct": 2.3031892816779873,
   "start_distance_m": 595.0,
   "end_distance_m": 620.0,
   "midpoint_distance_m": 607.5,
   "start_elevation_m": 887.1164437149835,
   "end_elevation_m": 887.692241035403,
   "start_xy": [
    906188.7076135519,
    6422496.89580711
   ],
   "end_xy": [
    906177.3109569811,
    6422519.147014246
   ]
  },
  "min_50m": {
   "gradient_pct": 2.8958068267954786,
   "start_distance_m": 584.0,
   "end_distance_m": 634.0,
   "midpoint_distance_m": 609.0,
   "start_elevation_m": 886.7005608861921,
   "end_elevation_m": 888.1484642995898,
   "start_xy": [
    906193.7221424431,
    6422487.10527597
   ],
   "end_xy": [
    906171.0297062438,
    6422531.652502354
   ]
  },
  "min_100m": {
   "gradient_pct": 3.435508318765301,
   "start_distance_m": 551.0,
   "end_distance_m": 651.0,
   "midpoint_distance_m": 601.0,
   "start_elevation_m": 885.4318358493755,
   "end_elevation_m": 888.8673441681408,
   "start_xy": [
    906209.3788633369,
    6422458.076602391
   ],
   "end_xy": [
    906164.9975084119,
    6422547.546293259
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 36.703545710787466,
   "start_distance_m": 844.0,
   "end_distance_m": 846.0,
   "midpoint_distance_m": 845.0,
   "start_elevation_m": 902.6245722704303,
   "end_elevation_m": 903.3586431846461,
   "start_xy": [
    905999.2212851052,
    6422612.328553312
   ],
   "end_xy": [
    905997.2437186126,
    6422612.627268506
   ]
  },
  "max_3m": {
   "gradient_pct": 34.00464948925522,
   "start_distance_m": 845.0,
   "end_distance_m": 848.0,
   "midpoint_distance_m": 846.5,
   "start_elevation_m": 902.9815131673636,
   "end_elevation_m": 904.0016526520412,
   "start_xy": [
    905998.232501859,
    6422612.47791091
   ],
   "end_xy": [
    905995.26615212,
    6422612.925983701
   ]
  }
 },
 "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": {
  "overhead_obstruction": {
   "obstruction_threshold_m": 2.0,
   "obstructed_fraction": 0.197,
   "obstruction_max_height_m": 20.2,
   "flagged_windows_m": [
    5,
    100
   ]
  },
  "review": [],
  "extent": [
   "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:2154",
  "elevation_resolution_m": 0.5,
  "elevation_tiles": [
   "data/cache/fr/ign-lidarhd_dtm_E905-N6422_0m5.tif",
   "data/cache/fr/ign-lidarhd_dtm_E906-N6422_0m5.tif"
  ],
  "calculated_at": "2026-09-17T03:07:43+00:00",
  "road_source": "OpenStreetMap (local PBF extract)",
  "road_attribution": "\u00a9 OpenStreetMap contributors, ODbL",
  "osm_pbf_path": "data/cache/pbf/block-batch-fr-alps2.osm.pbf",
  "osm_snapshot": "",
  "run_id": "fr-alps2",
  "elevation_provider": "IGN LiDAR HD MNT 0.5 m",
  "elevation_licence": "Licence Ouverte / Open Licence 2.0 (Etalab) \u2014 \u00a9 IGN, LiDAR HD (MNT/MNS), data.geopf.fr; reproduction autoris\u00e9e avec mention de la source et de la date",
  "elevation_dataset": "LiDAR HD \u2014 MNT (sol) et MNS (surface), 0,50 m (Institut national de l'information g\u00e9ographique et foresti\u00e8re), RGF93 / Lambert-93 EPSG:2154, altitudes IGN69",
  "elevation_vertical_datum": "IGN69",
  "elevation_tile_ids": [
   "E905-N6422",
   "E906-N6422"
  ],
  "elevation_blocks": [
   "21LHD7PN@2025-02-20"
  ],
  "ign_dalles": [
   "LHD_FXX_0905_6423_MNT_O_0M50_LAMB93_IGN69",
   "LHD_FXX_0906_6423_MNT_O_0M50_LAMB93_IGN69"
  ],
  "ign_missions": [
   "21LHD7PN"
  ],
  "ign_editions": [
   "2025-02-20"
  ],
  "ign_dsm_edition": {
   "LHD_FXX_0905_6423_MNT_O_0M50_LAMB93_IGN69": "2025-02-20",
   "LHD_FXX_0906_6423_MNT_O_0M50_LAMB93_IGN69": "2025-02-20"
  },
  "climb_origin": "discovered",
  "structure_own_ways": 6,
  "carriageway": {
   "stations": 47,
   "stations_resolved": 47,
   "width_median_m": 5.25,
   "width_p10_m": 3.5,
   "width_min_m": 1.5,
   "width_max_m": 12.0,
   "bounded_share": 0.149,
   "unbounded_share": 0.851,
   "confidence_median": 0.0,
   "width_median_bounded_m": 4.5,
   "window_m": [
    982.0,
    1007.0
   ],
   "width_at_max25_m": 3.75,
   "window_stations": 7,
   "single_track": false,
   "single_track_rule": "PROVISIONAL (2026-09-15): width_p10_m <= 3.0 m with bounded_share >= 0.6; recorded, not a rule",
   "status": "ok",
   "source": "dtm",
   "station_m": 25.0,
   "window_station_m": 5.0,
   "halfwidth_m": 6.0,
   "step_m": 0.25,
   "level_tol_m": 0.12,
   "break_min_m": 0.3,
   "stations_failed": 0,
   "hedge_to_hedge": {
    "stations": 47,
    "stations_resolved": 47,
    "width_median_m": 8.25,
    "width_p10_m": 1.9,
    "width_min_m": 0.5,
    "width_max_m": 12.0,
    "bounded_share": 0.468,
    "unbounded_share": 0.532,
    "confidence_median": 0.0,
    "width_median_bounded_m": 4.12,
    "window_m": [
     982.0,
     1007.0
    ],
    "width_at_max25_m": 4.25,
    "window_stations": 7,
    "status": "ok",
    "source": "dsm",
    "station_m": 25.0,
    "window_station_m": 5.0,
    "halfwidth_m": 6.0,
    "step_m": 0.25,
    "level_tol_m": 0.5,
    "break_min_m": 0.3,
    "stations_failed": 0
   }
  },
  "license": "ODbL-1.0",
  "license_url": "https://howsteep.org/licensing"
 },
 "area": {
  "place": "Saint-Michel-les-Portes",
  "county": "Is\u00e8re",
  "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)"
 }
}