{
 "ocl_version": "0.1.0",
 "name": "Route des Portes",
 "slug": "route-des-portes",
 "confidence": "B",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 33.381988937139795,
   "diagnostic": true,
   "flags": [
    "structure_excluded",
    "placement_excluded"
   ],
   "start_distance_m": 712.0,
   "end_distance_m": 714.0,
   "start_elevation_m": 1160.0034619050593,
   "end_elevation_m": 1160.6711016838021,
   "min_gradient_pct": -33.468091297231695,
   "suppressed_max_gradient_pct": 86.54702710264246,
   "suppressed_location_m": [
    184.0,
    186.0
   ]
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 29.10465412874146,
   "diagnostic": true,
   "flags": [
    "structure_excluded",
    "no_bench_excluded",
    "placement_excluded"
   ],
   "start_distance_m": 712.0,
   "end_distance_m": 715.0,
   "start_elevation_m": 1160.0034619050593,
   "end_elevation_m": 1160.8766015289216,
   "min_gradient_pct": -24.36022588284838,
   "suppressed_max_gradient_pct": 64.63978367739855,
   "suppressed_location_m": [
    384.0,
    387.0
   ]
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 26.093289267146247,
   "diagnostic": false,
   "flags": [
    "structure_excluded",
    "no_bench_excluded",
    "placement_excluded"
   ],
   "start_distance_m": 704.0,
   "end_distance_m": 709.0,
   "start_elevation_m": 1158.3464932752165,
   "end_elevation_m": 1159.6511577385738,
   "min_gradient_pct": -18.4079229109102,
   "suppressed_max_gradient_pct": 60.61910238860037,
   "suppressed_location_m": [
    383.0,
    388.0
   ]
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 23.28124428853016,
   "diagnostic": false,
   "flags": [
    "structure_excluded",
    "no_bench_excluded",
    "placement_excluded"
   ],
   "start_distance_m": 705.0,
   "end_distance_m": 715.0,
   "start_elevation_m": 1158.5484771000686,
   "end_elevation_m": 1160.8766015289216,
   "min_gradient_pct": -14.995274959960625,
   "suppressed_max_gradient_pct": 50.67269067129473,
   "suppressed_location_m": [
    379.0,
    389.0
   ]
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 18.88378695519691,
   "diagnostic": false,
   "flags": [
    "structure_excluded",
    "no_bench_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 704.0,
   "end_distance_m": 724.0,
   "start_elevation_m": 1158.3464932752165,
   "end_elevation_m": 1162.123250666256,
   "min_gradient_pct": -6.772271061847732,
   "suppressed_max_gradient_pct": 30.38216561742729,
   "suppressed_location_m": [
    374.0,
    394.0
   ]
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 17.84922788043059,
   "diagnostic": false,
   "flags": [
    "structure_excluded",
    "no_bench_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 704.0,
   "end_distance_m": 729.0,
   "start_elevation_m": 1158.3464932752165,
   "end_elevation_m": 1162.8088002453242,
   "min_gradient_pct": -6.518745973447949,
   "suppressed_max_gradient_pct": 27.135886147597375,
   "suppressed_location_m": [
    365.0,
    390.0
   ]
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 15.250213090987927,
   "diagnostic": false,
   "flags": [
    "structure_excluded",
    "no_bench_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 704.0,
   "end_distance_m": 754.0,
   "start_elevation_m": 1158.3464932752165,
   "end_elevation_m": 1165.9715998207105,
   "min_gradient_pct": 0.7559601315310829,
   "suppressed_max_gradient_pct": 19.421493932634803,
   "suppressed_location_m": [
    1106.0,
    1156.0
   ]
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 14.085793861077946,
   "diagnostic": false,
   "flags": [
    "structure_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 704.0,
   "end_distance_m": 804.0,
   "start_elevation_m": 1158.3464932752165,
   "end_elevation_m": 1172.4322871362945,
   "min_gradient_pct": 1.179049289929253,
   "suppressed_max_gradient_pct": 15.414344925084833,
   "suppressed_location_m": [
    289.0,
    389.0
   ]
  }
 ],
 "shape": {
  "ascent_concentration": 0.308,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 262.0,
  "shape_class": "sustained"
 },
 "length_m": 1737.407272864908,
 "start_elevation_m": 1090.4143269999984,
 "end_elevation_m": 1269.1988798828133,
 "endpoint_gain_m": 178.78455288281498,
 "overall_gradient_pct": 10.290307613827766,
 "accumulated_ascent_m": 194.07120238467405,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 26.093289267146247,
   "start_distance_m": 704.0,
   "end_distance_m": 709.0,
   "midpoint_distance_m": 706.5,
   "start_elevation_m": 1158.3464932752165,
   "end_elevation_m": 1159.6511577385738,
   "start_xy": [
    952328.8015172995,
    6417969.922582182
   ],
   "end_xy": [
    952333.1492254224,
    6417967.4532838855
   ]
  },
  "max_10m": {
   "gradient_pct": 23.28124428853016,
   "start_distance_m": 705.0,
   "end_distance_m": 715.0,
   "midpoint_distance_m": 710.0,
   "start_elevation_m": 1158.5484771000686,
   "end_elevation_m": 1160.8766015289216,
   "start_xy": [
    952329.671058924,
    6417969.428722522
   ],
   "end_xy": [
    952338.3664751699,
    6417964.490125929
   ]
  },
  "max_20m": {
   "gradient_pct": 18.88378695519691,
   "start_distance_m": 704.0,
   "end_distance_m": 724.0,
   "midpoint_distance_m": 714.0,
   "start_elevation_m": 1158.3464932752165,
   "end_elevation_m": 1162.123250666256,
   "start_xy": [
    952328.8015172995,
    6417969.922582182
   ],
   "end_xy": [
    952346.992523844,
    6417962.640269629
   ]
  },
  "max_25m": {
   "gradient_pct": 17.84922788043059,
   "start_distance_m": 704.0,
   "end_distance_m": 729.0,
   "midpoint_distance_m": 716.5,
   "start_elevation_m": 1158.3464932752165,
   "end_elevation_m": 1162.8088002453242,
   "start_xy": [
    952328.8015172995,
    6417969.922582182
   ],
   "end_xy": [
    952351.9758433132,
    6417962.232192347
   ]
  },
  "max_50m": {
   "gradient_pct": 15.250213090987927,
   "start_distance_m": 704.0,
   "end_distance_m": 754.0,
   "midpoint_distance_m": 729.0,
   "start_elevation_m": 1158.3464932752165,
   "end_elevation_m": 1165.9715998207105,
   "start_xy": [
    952328.8015172995,
    6417969.922582182
   ],
   "end_xy": [
    952375.7387185168,
    6417955.015023703
   ]
  },
  "max_100m": {
   "gradient_pct": 14.085793861077946,
   "start_distance_m": 704.0,
   "end_distance_m": 804.0,
   "midpoint_distance_m": 754.0,
   "start_elevation_m": 1158.3464932752165,
   "end_elevation_m": 1172.4322871362945,
   "start_xy": [
    952328.8015172995,
    6417969.922582182
   ],
   "end_xy": [
    952421.3457206478,
    6417934.909111437
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -18.4079229109102,
   "start_distance_m": 1094.0,
   "end_distance_m": 1099.0,
   "midpoint_distance_m": 1096.5,
   "start_elevation_m": 1208.2022014419367,
   "end_elevation_m": 1207.2818052963912,
   "start_xy": [
    952332.6365817018,
    6417890.298198182
   ],
   "end_xy": [
    952336.4574167181,
    6417887.216244783
   ]
  },
  "min_10m": {
   "gradient_pct": -14.995274959960625,
   "start_distance_m": 396.0,
   "end_distance_m": 406.0,
   "midpoint_distance_m": 401.0,
   "start_elevation_m": 1127.2879971863358,
   "end_elevation_m": 1125.7884696903398,
   "start_xy": [
    952312.3495328657,
    6418029.926964543
   ],
   "end_xy": [
    952302.7894800799,
    6418032.86045917
   ]
  },
  "min_20m": {
   "gradient_pct": -6.772271061847732,
   "start_distance_m": 397.0,
   "end_distance_m": 417.0,
   "midpoint_distance_m": 407.0,
   "start_elevation_m": 1127.1529071824011,
   "end_elevation_m": 1125.7984529700316,
   "start_xy": [
    952311.3935275871,
    6418030.220314005
   ],
   "end_xy": [
    952292.4361092299,
    6418036.419726186
   ]
  },
  "min_25m": {
   "gradient_pct": -6.518745973447949,
   "start_distance_m": 396.0,
   "end_distance_m": 421.0,
   "midpoint_distance_m": 408.5,
   "start_elevation_m": 1127.2879971863358,
   "end_elevation_m": 1125.6583106929738,
   "start_xy": [
    952312.3495328657,
    6418029.926964543
   ],
   "end_xy": [
    952289.163329901,
    6418038.719490406
   ]
  },
  "min_50m": {
   "gradient_pct": 0.7559601315310829,
   "start_distance_m": 1687.0,
   "end_distance_m": 1737.0,
   "midpoint_distance_m": 1712.0,
   "start_elevation_m": 1268.8238115113872,
   "end_elevation_m": 1269.2017915771528,
   "start_xy": [
    952592.9471460421,
    6417509.976002838
   ],
   "end_xy": [
    952594.9896217445,
    6417460.039140613
   ]
  },
  "min_100m": {
   "gradient_pct": 1.179049289929253,
   "start_distance_m": 1637.0,
   "end_distance_m": 1737.0,
   "midpoint_distance_m": 1687.0,
   "start_elevation_m": 1268.0227422872235,
   "end_elevation_m": 1269.2017915771528,
   "start_xy": [
    952596.6382440191,
    6417558.66431475
   ],
   "end_xy": [
    952594.9896217445,
    6417460.039140613
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 33.381988937139795,
   "start_distance_m": 712.0,
   "end_distance_m": 714.0,
   "midpoint_distance_m": 713.0,
   "start_elevation_m": 1160.0034619050593,
   "end_elevation_m": 1160.6711016838021,
   "start_xy": [
    952335.7578502962,
    6417965.971704908
   ],
   "end_xy": [
    952337.4969335453,
    6417964.983985589
   ]
  },
  "max_3m": {
   "gradient_pct": 29.10465412874146,
   "start_distance_m": 712.0,
   "end_distance_m": 715.0,
   "midpoint_distance_m": 713.5,
   "start_elevation_m": 1160.0034619050593,
   "end_elevation_m": 1160.8766015289216,
   "start_xy": [
    952335.7578502962,
    6417965.971704908
   ],
   "end_xy": [
    952338.3664751699,
    6417964.490125929
   ]
  }
 },
 "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": 0.048,
   "windows_resited": [
    2.0,
    3.0,
    5.0,
    10.0,
    20.0,
    25.0,
    50.0,
    100.0
   ],
   "windows_unresolved": []
  },
  "no_bench_suppression": {
   "masked_fraction": 0.23,
   "windows_resited": [
    3.0,
    5.0,
    10.0,
    20.0,
    25.0,
    50.0
   ],
   "windows_unresolved": []
  },
  "placement_suppression": {
   "masked_fraction": 0.241,
   "windows_resited": [
    2.0,
    3.0,
    5.0,
    10.0
   ],
   "windows_unresolved": []
  },
  "overhead_obstruction": {
   "obstruction_threshold_m": 2.0,
   "obstructed_fraction": 0.469,
   "obstruction_max_height_m": 35.88,
   "flagged_windows_m": [
    20,
    25,
    50,
    100
   ]
  },
  "excluded_ranges_m": [
   [
    99.0,
    139.0
   ],
   [
    182.0,
    188.0
   ],
   [
    190.0,
    220.0
   ],
   [
    230.0,
    420.0
   ],
   [
    980.0,
    1020.0
   ],
   [
    1090.0,
    1095.0
   ],
   [
    1109.0,
    1210.0
   ]
  ],
  "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:2154",
  "elevation_resolution_m": 0.5,
  "elevation_tiles": [
   "data/cache/fr/ign-lidarhd_dtm_E952-N6417_0m5.tif",
   "data/cache/fr/ign-lidarhd_dtm_E952-N6418_0m5.tif"
  ],
  "calculated_at": "2026-09-17T03:18:05+00:00",
  "road_source": "OpenStreetMap (local PBF extract)",
  "road_attribution": "\u00a9 OpenStreetMap contributors, ODbL",
  "osm_pbf_path": "data/cache/pbf/block-batch-fr-alps3.osm.pbf",
  "osm_snapshot": "",
  "run_id": "fr-alps3",
  "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": [
   "E952-N6417",
   "E952-N6418"
  ],
  "elevation_blocks": [
   "21LHD8QN@2025-02-20"
  ],
  "ign_dalles": [
   "LHD_FXX_0952_6418_MNT_O_0M50_LAMB93_IGN69",
   "LHD_FXX_0952_6419_MNT_O_0M50_LAMB93_IGN69"
  ],
  "ign_missions": [
   "21LHD8QN"
  ],
  "ign_editions": [
   "2025-02-20"
  ],
  "ign_dsm_edition": {
   "LHD_FXX_0952_6418_MNT_O_0M50_LAMB93_IGN69": "2025-02-20",
   "LHD_FXX_0952_6419_MNT_O_0M50_LAMB93_IGN69": "2025-02-20"
  },
  "climb_origin": "discovered",
  "structure_own_ways": 2,
  "structure_mask_ranges_m": [
   [
    105.0,
    135.0
   ]
  ],
  "carriageway": {
   "stations": 76,
   "stations_resolved": 76,
   "width_median_m": 3.75,
   "width_p10_m": 1.5,
   "width_min_m": 1.0,
   "width_max_m": 12.0,
   "bounded_share": 0.566,
   "unbounded_share": 0.434,
   "confidence_median": 0.577,
   "width_median_bounded_m": 3.75,
   "window_m": [
    704.0,
    729.0
   ],
   "width_at_max25_m": 3.0,
   "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": 76,
    "stations_resolved": 76,
    "width_median_m": 2.62,
    "width_p10_m": 0.5,
    "width_min_m": 0.0,
    "width_max_m": 12.0,
    "bounded_share": 0.895,
    "unbounded_share": 0.105,
    "confidence_median": 1.0,
    "width_median_bounded_m": 2.38,
    "window_m": [
     704.0,
     729.0
    ],
    "width_at_max25_m": 2.0,
    "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": "La Chapelle-en-Valgaud\u00e9mar",
  "county": "Hautes-Alpes",
  "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)"
 }
}