{
 "ocl_version": "0.1.0",
 "name": "Route de Montagut",
 "slug": "route-de-montagut",
 "confidence": "B",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 38.25910900353051,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 0.0,
   "end_distance_m": 2.0,
   "start_elevation_m": 88.68082511687734,
   "end_elevation_m": 89.44600729694795,
   "min_gradient_pct": -0.05022524084168367
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 25.403134756774648,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 0.0,
   "end_distance_m": 3.0,
   "start_elevation_m": 88.68082511687734,
   "end_elevation_m": 89.44291915958058,
   "min_gradient_pct": 0.10911137432619473
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 20.84972868553507,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 507.0,
   "end_distance_m": 512.0,
   "start_elevation_m": 141.42521657103126,
   "end_elevation_m": 142.467703005308,
   "min_gradient_pct": 0.36016810078223216
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 20.505829549189514,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 507.0,
   "end_distance_m": 517.0,
   "start_elevation_m": 141.42521657103126,
   "end_elevation_m": 143.4757995259502,
   "min_gradient_pct": 0.547370309478481
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 20.28548724740247,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 506.0,
   "end_distance_m": 526.0,
   "start_elevation_m": 141.23101696531768,
   "end_elevation_m": 145.28811441479817,
   "min_gradient_pct": 1.0585490662298724
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 20.095800986763493,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 502.0,
   "end_distance_m": 527.0,
   "start_elevation_m": 140.44363081301285,
   "end_elevation_m": 145.46758105970372,
   "min_gradient_pct": 1.45191053117901
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 18.84474552612278,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 493.0,
   "end_distance_m": 543.0,
   "start_elevation_m": 138.85728540924333,
   "end_elevation_m": 148.27965817230472,
   "min_gradient_pct": 3.281386484572522
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 16.700822266714653,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 466.0,
   "end_distance_m": 566.0,
   "start_elevation_m": 134.96393130813058,
   "end_elevation_m": 151.66475357484524,
   "min_gradient_pct": 4.682070457373214
  }
 ],
 "shape": {
  "ascent_concentration": 0.324,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 138.0,
  "shape_class": "sustained"
 },
 "length_m": 603.5583712878388,
 "start_elevation_m": 88.68082511687734,
 "end_elevation_m": 153.68817794280022,
 "endpoint_gain_m": 65.00735282592288,
 "overall_gradient_pct": 10.770681995051094,
 "accumulated_ascent_m": 65.01706504739622,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 20.84972868553507,
   "start_distance_m": 507.0,
   "end_distance_m": 512.0,
   "midpoint_distance_m": 509.5,
   "start_elevation_m": 141.42521657103126,
   "end_elevation_m": 142.467703005308,
   "start_xy": [
    419104.6805094415,
    6278956.037040743
   ],
   "end_xy": [
    419108.79952340166,
    6278958.871423215
   ]
  },
  "max_10m": {
   "gradient_pct": 20.505829549189514,
   "start_distance_m": 507.0,
   "end_distance_m": 517.0,
   "midpoint_distance_m": 512.0,
   "start_elevation_m": 141.42521657103126,
   "end_elevation_m": 143.4757995259502,
   "start_xy": [
    419104.6805094415,
    6278956.037040743
   ],
   "end_xy": [
    419112.91853736184,
    6278961.705805686
   ]
  },
  "max_20m": {
   "gradient_pct": 20.28548724740247,
   "start_distance_m": 506.0,
   "end_distance_m": 526.0,
   "midpoint_distance_m": 516.0,
   "start_elevation_m": 141.23101696531768,
   "end_elevation_m": 145.28811441479817,
   "start_xy": [
    419103.8567066495,
    6278955.470164249
   ],
   "end_xy": [
    419120.076829864,
    6278967.124445051
   ]
  },
  "max_25m": {
   "gradient_pct": 20.095800986763493,
   "start_distance_m": 502.0,
   "end_distance_m": 527.0,
   "midpoint_distance_m": 514.5,
   "start_elevation_m": 140.44363081301285,
   "end_elevation_m": 145.46758105970372,
   "start_xy": [
    419100.56149548135,
    6278953.202658271
   ],
   "end_xy": [
    419120.8040846052,
    6278967.810812694
   ]
  },
  "max_50m": {
   "gradient_pct": 18.84474552612278,
   "start_distance_m": 493.0,
   "end_distance_m": 543.0,
   "midpoint_distance_m": 518.0,
   "start_elevation_m": 138.85728540924333,
   "end_elevation_m": 148.27965817230472,
   "start_xy": [
    419093.14727035305,
    6278948.1007698225
   ],
   "end_xy": [
    419132.4401604641,
    6278978.792694983
   ]
  },
  "max_100m": {
   "gradient_pct": 16.700822266714653,
   "start_distance_m": 466.0,
   "end_distance_m": 566.0,
   "midpoint_distance_m": 516.0,
   "start_elevation_m": 134.96393130813058,
   "end_elevation_m": 151.66475357484524,
   "start_xy": [
    419070.9045949682,
    6278932.795104475
   ],
   "end_xy": [
    419144.0938047212,
    6278998.200795968
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": 0.36016810078223216,
   "start_distance_m": 8.0,
   "end_distance_m": 13.0,
   "midpoint_distance_m": 10.5,
   "start_elevation_m": 89.48479325754478,
   "end_elevation_m": 89.50280166258389,
   "start_xy": [
    418719.74137650867,
    6278645.785257514
   ],
   "end_xy": [
    418723.0834868266,
    6278649.504168459
   ]
  },
  "min_10m": {
   "gradient_pct": 0.547370309478481,
   "start_distance_m": 2.0,
   "end_distance_m": 12.0,
   "midpoint_distance_m": 7.0,
   "start_elevation_m": 89.44600729694795,
   "end_elevation_m": 89.5007443278958,
   "start_xy": [
    418715.73084412713,
    6278641.322564378
   ],
   "end_xy": [
    418722.41506476304,
    6278648.76038627
   ]
  },
  "min_20m": {
   "gradient_pct": 1.0585490662298724,
   "start_distance_m": 2.0,
   "end_distance_m": 22.0,
   "midpoint_distance_m": 12.0,
   "start_elevation_m": 89.44600729694795,
   "end_elevation_m": 89.65771711019393,
   "start_xy": [
    418715.73084412713,
    6278641.322564378
   ],
   "end_xy": [
    418729.29563336377,
    6278655.977515085
   ]
  },
  "min_25m": {
   "gradient_pct": 1.45191053117901,
   "start_distance_m": 2.0,
   "end_distance_m": 27.0,
   "midpoint_distance_m": 14.5,
   "start_elevation_m": 89.44600729694795,
   "end_elevation_m": 89.8089849297427,
   "start_xy": [
    418715.73084412713,
    6278641.322564378
   ],
   "end_xy": [
    418733.3781559237,
    6278658.8642103495
   ]
  },
  "min_50m": {
   "gradient_pct": 3.281386484572522,
   "start_distance_m": 2.0,
   "end_distance_m": 52.0,
   "midpoint_distance_m": 27.0,
   "start_elevation_m": 89.44600729694795,
   "end_elevation_m": 91.08670053923422,
   "start_xy": [
    418715.73084412713,
    6278641.322564378
   ],
   "end_xy": [
    418754.32627855294,
    6278672.482928498
   ]
  },
  "min_100m": {
   "gradient_pct": 4.682070457373214,
   "start_distance_m": 2.0,
   "end_distance_m": 102.0,
   "midpoint_distance_m": 52.0,
   "start_elevation_m": 89.44600729694795,
   "end_elevation_m": 94.12807775432117,
   "start_xy": [
    418715.73084412713,
    6278641.322564378
   ],
   "end_xy": [
    418793.9934852554,
    6278702.829561848
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 38.25910900353051,
   "start_distance_m": 0.0,
   "end_distance_m": 2.0,
   "midpoint_distance_m": 1.0,
   "start_elevation_m": 88.68082511687734,
   "end_elevation_m": 89.44600729694795,
   "start_xy": [
    418714.394,
    6278639.835
   ],
   "end_xy": [
    418715.73084412713,
    6278641.322564378
   ]
  },
  "max_3m": {
   "gradient_pct": 25.403134756774648,
   "start_distance_m": 0.0,
   "end_distance_m": 3.0,
   "midpoint_distance_m": 1.5,
   "start_elevation_m": 88.68082511687734,
   "end_elevation_m": 89.44291915958058,
   "start_xy": [
    418714.394,
    6278639.835
   ],
   "end_xy": [
    418716.3992661907,
    6278642.066346567
   ]
  }
 },
 "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": 0.24,
   "obstruction_max_height_m": 23.63,
   "flagged_windows_m": [
    10,
    20,
    25,
    50,
    100
   ]
  },
  "review": [],
  "extent": []
 },
 "provenance": {
  "analysis_version": "0.1.0",
  "run_manifest": {
   "manifest_version": "1",
   "code_git_sha": "06fa4c370391597f015858e97dcf01ca2f5b3640",
   "code_git_dirty": "false",
   "analysis_version": "0.1.0",
   "analysis_config_digest": "sha256:0048c2bbb24ab95e",
   "python": "3.14.4",
   "numpy": "2.5.3",
   "rasterio": "1.5.1",
   "pyproj": "3.8.0",
   "laspy": "2.7.0",
   "shapely": "2.1.2",
   "pyosmium": "4.3.1",
   "libosmium": "2.23.1",
   "gdal": "3.12.4",
   "proj": "9.8.1",
   "run_id": "fr-pyr1",
   "road_pbf": "block-batch-fr-pyr1.osm.pbf",
   "region_key": "france",
   "crs": "EPSG:2154",
   "elevation_provider_key": "ign-lidarhd",
   "tile_index": "wms-grid",
   "authority": "bdtopo",
   "registry_pbf": "france-vosges-2026-09-16.osm.pbf",
   "tile_index_snapshot": "sha256:c54ac68b3f57b41b"
  },
  "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_E418-N6278_0m5@21LHD1FQ-2025-09-15.tif",
   "data/cache/fr/ign-lidarhd_dtm_E418-N6279_0m5@21LHD1FQ-2025-09-15.tif",
   "data/cache/fr/ign-lidarhd_dtm_E419-N6278_0m5@21LHD1FQ-2025-09-15.tif",
   "data/cache/fr/ign-lidarhd_dtm_E419-N6279_0m5@21LHD1FQ-2025-09-15.tif"
  ],
  "calculated_at": "2026-09-20T06:26:37+00:00",
  "road_source": "OpenStreetMap (local PBF extract)",
  "road_attribution": "\u00a9 OpenStreetMap contributors, ODbL",
  "osm_pbf_path": "data/cache/pbf/block-batch-fr-pyr1.osm.pbf",
  "osm_snapshot": "",
  "run_id": "fr-pyr1",
  "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": [
   "E418-N6278",
   "E418-N6279",
   "E419-N6278",
   "E419-N6279"
  ],
  "elevation_blocks": [
   "21LHD1FQ@2025-09-15"
  ],
  "ign_dalles": [
   "LHD_FXX_0418_6279_MNT_O_0M50_LAMB93_IGN69",
   "LHD_FXX_0418_6280_MNT_O_0M50_LAMB93_IGN69",
   "LHD_FXX_0419_6279_MNT_O_0M50_LAMB93_IGN69",
   "LHD_FXX_0419_6280_MNT_O_0M50_LAMB93_IGN69"
  ],
  "ign_missions": [
   "21LHD1FQ"
  ],
  "ign_editions": [
   "2025-09-15"
  ],
  "ign_dsm_edition": {
   "LHD_FXX_0418_6279_MNT_O_0M50_LAMB93_IGN69": "2025-09-15",
   "LHD_FXX_0418_6280_MNT_O_0M50_LAMB93_IGN69": "2025-09-15",
   "LHD_FXX_0419_6279_MNT_O_0M50_LAMB93_IGN69": "2025-09-15",
   "LHD_FXX_0419_6280_MNT_O_0M50_LAMB93_IGN69": "2025-09-15"
  },
  "climb_origin": "discovered",
  "structure_own_ways": "none \u2014 the route carried no way list; own decks unmasked",
  "carriageway": {
   "stations": 31,
   "stations_resolved": 31,
   "width_median_m": 6.75,
   "width_p10_m": 5.75,
   "width_min_m": 2.5,
   "width_max_m": 9.75,
   "bounded_share": 0.516,
   "unbounded_share": 0.484,
   "confidence_median": 0.505,
   "width_median_bounded_m": 6.5,
   "window_m": [
    502.0,
    527.0
   ],
   "width_at_max25_m": 6.25,
   "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": 31,
    "stations_resolved": 31,
    "width_median_m": 4.25,
    "width_p10_m": 0.75,
    "width_min_m": 0.5,
    "width_max_m": 12.0,
    "bounded_share": 0.806,
    "unbounded_share": 0.194,
    "confidence_median": 1.0,
    "width_median_bounded_m": 3.75,
    "window_m": [
     502.0,
     527.0
    ],
    "width_at_max25_m": 3.75,
    "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": "Malaussanne",
  "county": "Pyr\u00e9n\u00e9es-Atlantiques",
  "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)"
 }
}