{
 "ocl_version": "0.1.0",
 "name": "Mont\u00e9e de la Calade",
 "slug": "montee-de-la-calade",
 "confidence": "B",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 24.923491952381482,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 70.0,
   "end_distance_m": 72.0,
   "start_elevation_m": 364.5975416261691,
   "end_elevation_m": 365.09601146521675,
   "min_gradient_pct": 3.5661306542976945
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 24.185225377957902,
   "diagnostic": true,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 242.0,
   "end_distance_m": 245.0,
   "start_elevation_m": 387.83704481613825,
   "end_elevation_m": 388.562601577477,
   "min_gradient_pct": 3.7308188919079535
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 23.336521928298453,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 70.0,
   "end_distance_m": 75.0,
   "start_elevation_m": 364.5975416261691,
   "end_elevation_m": 365.76436772258404,
   "min_gradient_pct": 4.322899023984519
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 22.796676646253218,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 70.0,
   "end_distance_m": 80.0,
   "start_elevation_m": 364.5975416261691,
   "end_elevation_m": 366.87720929079444,
   "min_gradient_pct": 4.90728933295884
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 21.634552866265437,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 64.0,
   "end_distance_m": 84.0,
   "start_elevation_m": 363.38497316282894,
   "end_elevation_m": 367.71188373608203,
   "min_gradient_pct": 5.463543903962034
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 21.46152105283477,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 69.0,
   "end_distance_m": 94.0,
   "start_elevation_m": 364.39861207576945,
   "end_elevation_m": 369.76399233897814,
   "min_gradient_pct": 5.912689975153626
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 20.812527736643915,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 50.0,
   "end_distance_m": 100.0,
   "start_elevation_m": 360.5449236315693,
   "end_elevation_m": 370.95118749989126,
   "min_gradient_pct": 6.470847555013279
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 19.596668208254243,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 13.0,
   "end_distance_m": 113.0,
   "start_elevation_m": 353.75989317321427,
   "end_elevation_m": 373.3565613814685,
   "min_gradient_pct": 9.88398489136307
  }
 ],
 "shape": {
  "ascent_concentration": 0.34,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 192.0,
  "shape_class": "sustained"
 },
 "length_m": 275.085445756677,
 "start_elevation_m": 351.75569556884267,
 "end_elevation_m": 392.79233737735467,
 "endpoint_gain_m": 41.036641808512,
 "overall_gradient_pct": 14.91778007216361,
 "accumulated_ascent_m": 41.036641808512,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 23.336521928298453,
   "start_distance_m": 70.0,
   "end_distance_m": 75.0,
   "midpoint_distance_m": 72.5,
   "start_elevation_m": 364.5975416261691,
   "end_elevation_m": 365.76436772258404,
   "start_xy": [
    921848.7923820398,
    6305492.320125851
   ],
   "end_xy": [
    921845.8601749806,
    6305488.270167609
   ]
  },
  "max_10m": {
   "gradient_pct": 22.796676646253218,
   "start_distance_m": 70.0,
   "end_distance_m": 80.0,
   "midpoint_distance_m": 75.0,
   "start_elevation_m": 364.5975416261691,
   "end_elevation_m": 366.87720929079444,
   "start_xy": [
    921848.7923820398,
    6305492.320125851
   ],
   "end_xy": [
    921842.9279679214,
    6305484.220209367
   ]
  },
  "max_20m": {
   "gradient_pct": 21.634552866265437,
   "start_distance_m": 64.0,
   "end_distance_m": 84.0,
   "midpoint_distance_m": 74.0,
   "start_elevation_m": 363.38497316282894,
   "end_elevation_m": 367.71188373608203,
   "start_xy": [
    921853.6241231388,
    6305495.679853499
   ],
   "end_xy": [
    921840.582202274,
    6305480.980242773
   ]
  },
  "max_25m": {
   "gradient_pct": 21.46152105283477,
   "start_distance_m": 69.0,
   "end_distance_m": 94.0,
   "midpoint_distance_m": 81.5,
   "start_elevation_m": 364.39861207576945,
   "end_elevation_m": 369.76399233897814,
   "start_xy": [
    921849.4604150208,
    6305493.062991659
   ],
   "end_xy": [
    921833.7119414846,
    6305473.967986807
   ]
  },
  "max_50m": {
   "gradient_pct": 20.812527736643915,
   "start_distance_m": 50.0,
   "end_distance_m": 100.0,
   "midpoint_distance_m": 75.0,
   "start_elevation_m": 360.5449236315693,
   "end_elevation_m": 370.95118749989126,
   "start_xy": [
    921867.4380072006,
    6305495.389013996
   ],
   "end_xy": [
    921827.8799785938,
    6305472.665826351
   ]
  },
  "max_100m": {
   "gradient_pct": 19.596668208254243,
   "start_distance_m": 13.0,
   "end_distance_m": 113.0,
   "midpoint_distance_m": 63.0,
   "start_elevation_m": 353.75989317321427,
   "end_elevation_m": 373.3565613814685,
   "start_xy": [
    921903.9658818722,
    6305489.497123639
   ],
   "end_xy": [
    921815.0152845769,
    6305470.795091776
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": 4.322899023984519,
   "start_distance_m": 198.0,
   "end_distance_m": 203.0,
   "midpoint_distance_m": 200.5,
   "start_elevation_m": 384.84146380067455,
   "end_elevation_m": 385.0576087518738,
   "start_xy": [
    921736.166148941,
    6305439.410201031
   ],
   "end_xy": [
    921731.5809665712,
    6305437.416193382
   ]
  },
  "min_10m": {
   "gradient_pct": 4.90728933295884,
   "start_distance_m": 191.0,
   "end_distance_m": 201.0,
   "midpoint_distance_m": 196.0,
   "start_elevation_m": 384.4626594341359,
   "end_elevation_m": 384.9533883674318,
   "start_xy": [
    921742.5866788342,
    6305442.198891743
   ],
   "end_xy": [
    921733.4144932724,
    6305438.215047868
   ]
  },
  "min_20m": {
   "gradient_pct": 5.463543903962034,
   "start_distance_m": 191.0,
   "end_distance_m": 211.0,
   "midpoint_distance_m": 201.0,
   "start_elevation_m": 384.4626594341359,
   "end_elevation_m": 385.5553682149283,
   "start_xy": [
    921742.5866788342,
    6305442.198891743
   ],
   "end_xy": [
    921724.2548372878,
    6305434.202499289
   ]
  },
  "min_25m": {
   "gradient_pct": 5.912689975153626,
   "start_distance_m": 190.0,
   "end_distance_m": 215.0,
   "midpoint_distance_m": 202.5,
   "start_elevation_m": 384.3872093252467,
   "end_elevation_m": 385.8653818190351,
   "start_xy": [
    921743.5038973903,
    6305442.597276131
   ],
   "end_xy": [
    921720.5917726461,
    6305432.595652242
   ]
  },
  "min_50m": {
   "gradient_pct": 6.470847555013279,
   "start_distance_m": 191.0,
   "end_distance_m": 241.0,
   "midpoint_distance_m": 216.0,
   "start_elevation_m": 384.4626594341359,
   "end_elevation_m": 387.69808321164254,
   "start_xy": [
    921742.5866788342,
    6305442.198891743
   ],
   "end_xy": [
    921698.2467520226,
    6305427.160219026
   ]
  },
  "min_100m": {
   "gradient_pct": 9.88398489136307,
   "start_distance_m": 141.0,
   "end_distance_m": 241.0,
   "midpoint_distance_m": 191.0,
   "start_elevation_m": 377.81409832027947,
   "end_elevation_m": 387.69808321164254,
   "start_xy": [
    921788.7893876687,
    6305461.290538486
   ],
   "end_xy": [
    921698.2467520226,
    6305427.160219026
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 24.923491952381482,
   "start_distance_m": 70.0,
   "end_distance_m": 72.0,
   "midpoint_distance_m": 71.0,
   "start_elevation_m": 364.5975416261691,
   "end_elevation_m": 365.09601146521675,
   "start_xy": [
    921848.7923820398,
    6305492.320125851
   ],
   "end_xy": [
    921847.6194992161,
    6305490.700142554
   ]
  },
  "max_3m": {
   "gradient_pct": 24.185225377957902,
   "start_distance_m": 242.0,
   "end_distance_m": 245.0,
   "midpoint_distance_m": 243.5,
   "start_elevation_m": 387.83704481613825,
   "end_elevation_m": 388.562601577477,
   "start_xy": [
    921697.8344950114,
    6305428.071286617
   ],
   "end_xy": [
    921696.5977239773,
    6305430.804489392
   ]
  }
 },
 "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": {
  "structure_suppression": {
   "masked_fraction": 0.072,
   "windows_resited": [],
   "windows_unresolved": []
  },
  "overhead_obstruction": {
   "obstruction_threshold_m": 2.0,
   "obstructed_fraction": 0.372,
   "obstruction_max_height_m": 20.11,
   "flagged_windows_m": [
    3,
    10,
    20,
    25,
    50,
    100
   ]
  },
  "excluded_ranges_m": [
   [
    152.0,
    171.0
   ]
  ],
  "review": [],
  "extent": [
   "may_start_earlier",
   "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_E921-N6305_0m5.tif"
  ],
  "calculated_at": "2026-09-17T03:16:23+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": [
   "E921-N6305"
  ],
  "elevation_blocks": [
   "21LHD7PP@2025-04-02"
  ],
  "ign_dalles": [
   "LHD_FXX_0921_6306_MNT_O_0M50_LAMB93_IGN69"
  ],
  "ign_missions": [
   "21LHD7PP"
  ],
  "ign_editions": [
   "2025-04-02"
  ],
  "ign_dsm_edition": {
   "LHD_FXX_0921_6306_MNT_O_0M50_LAMB93_IGN69": "2025-04-02"
  },
  "climb_origin": "discovered",
  "structure_own_ways": 4,
  "structure_mask_ranges_m": [
   [
    158.0,
    166.9
   ]
  ],
  "carriageway": {
   "stations": 18,
   "stations_resolved": 18,
   "width_median_m": 5.12,
   "width_p10_m": 3.67,
   "width_min_m": 2.75,
   "width_max_m": 10.0,
   "bounded_share": 0.333,
   "unbounded_share": 0.667,
   "confidence_median": 0.0,
   "width_median_bounded_m": 4.75,
   "window_m": [
    69.0,
    94.0
   ],
   "width_at_max25_m": 6.0,
   "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": 18,
    "stations_resolved": 18,
    "width_median_m": 3.5,
    "width_p10_m": 0.68,
    "width_min_m": 0.0,
    "width_max_m": 9.5,
    "bounded_share": 0.833,
    "unbounded_share": 0.167,
    "confidence_median": 1.0,
    "width_median_bounded_m": 3.25,
    "window_m": [
     69.0,
     94.0
    ],
    "width_at_max25_m": 1.0,
    "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": "Pierrevert",
  "county": "Alpes-de-Haute-Provence",
  "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)"
 }
}