{
 "ocl_version": "0.1.0",
 "name": "Boulevard S\u00e9raphin Roux",
 "slug": "boulevard-seraphin-roux",
 "confidence": "B",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 46.71137355612558,
   "diagnostic": true,
   "flags": [
    "structure_excluded_min",
    "canopy_or_structure"
   ],
   "start_distance_m": 232.0,
   "end_distance_m": 234.0,
   "start_elevation_m": 183.1359829608973,
   "end_elevation_m": 184.07021043201982,
   "min_gradient_pct": -2.78682190126176,
   "suppressed_min_gradient_pct": -8.011402281462665,
   "suppressed_min_location_m": [
    153.0,
    155.0
   ]
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 34.68822932454051,
   "diagnostic": true,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 231.0,
   "end_distance_m": 234.0,
   "start_elevation_m": 183.0295635522836,
   "end_elevation_m": 184.07021043201982,
   "min_gradient_pct": -2.1637314230266234
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 26.24970998377364,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 61.0,
   "end_distance_m": 66.0,
   "start_elevation_m": 157.72100228231474,
   "end_elevation_m": 159.03348778150342,
   "min_gradient_pct": 0.27310197120982593
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 22.452366377931128,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 57.0,
   "end_distance_m": 67.0,
   "start_elevation_m": 157.02054644734238,
   "end_elevation_m": 159.2657830851355,
   "min_gradient_pct": 3.1354281739857015
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 20.8792209352751,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 289.0,
   "end_distance_m": 309.0,
   "start_elevation_m": 192.90273202247315,
   "end_elevation_m": 197.07857620952817,
   "min_gradient_pct": 3.364713674272082
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 20.763949970755675,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 284.0,
   "end_distance_m": 309.0,
   "start_elevation_m": 191.88758871683925,
   "end_elevation_m": 197.07857620952817,
   "min_gradient_pct": 3.6458768542563575
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 19.307614120873552,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 259.0,
   "end_distance_m": 309.0,
   "start_elevation_m": 187.4247691490914,
   "end_elevation_m": 197.07857620952817,
   "min_gradient_pct": 7.867039964595108
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 17.23365219239227,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 209.0,
   "end_distance_m": 309.0,
   "start_elevation_m": 179.8449240171359,
   "end_elevation_m": 197.07857620952817,
   "min_gradient_pct": 10.751662985775196
  }
 ],
 "shape": {
  "ascent_concentration": 0.31,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 163.0,
  "shape_class": "sustained"
 },
 "length_m": 309.95165222663474,
 "start_elevation_m": 151.9787977685563,
 "end_elevation_m": 197.27075964050655,
 "endpoint_gain_m": 45.291961871950264,
 "overall_gradient_pct": 14.612589268868636,
 "accumulated_ascent_m": 45.54529835376337,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 26.24970998377364,
   "start_distance_m": 61.0,
   "end_distance_m": 66.0,
   "midpoint_distance_m": 63.5,
   "start_elevation_m": 157.72100228231474,
   "end_elevation_m": 159.03348778150342,
   "start_xy": [
    911269.4305996414,
    6252817.785335983
   ],
   "end_xy": [
    911274.4109474964,
    6252818.022422535
   ]
  },
  "max_10m": {
   "gradient_pct": 22.452366377931128,
   "start_distance_m": 57.0,
   "end_distance_m": 67.0,
   "midpoint_distance_m": 62.0,
   "start_elevation_m": 157.02054644734238,
   "end_elevation_m": 159.2657830851355,
   "start_xy": [
    911265.4323981277,
    6252817.905272034
   ],
   "end_xy": [
    911275.4037717158,
    6252818.142005432
   ]
  },
  "max_20m": {
   "gradient_pct": 20.8792209352751,
   "start_distance_m": 289.0,
   "end_distance_m": 309.0,
   "midpoint_distance_m": 299.0,
   "start_elevation_m": 192.90273202247315,
   "end_elevation_m": 197.07857620952817,
   "start_xy": [
    911480.8891909283,
    6252751.109652887
   ],
   "end_xy": [
    911500.6482173755,
    6252748.101702044
   ]
  },
  "max_25m": {
   "gradient_pct": 20.763949970755675,
   "start_distance_m": 284.0,
   "end_distance_m": 309.0,
   "midpoint_distance_m": 296.5,
   "start_elevation_m": 191.88758871683925,
   "end_elevation_m": 197.07857620952817,
   "start_xy": [
    911476.1804967187,
    6252752.791377847
   ],
   "end_xy": [
    911500.6482173755,
    6252748.101702044
   ]
  },
  "max_50m": {
   "gradient_pct": 19.307614120873552,
   "start_distance_m": 259.0,
   "end_distance_m": 309.0,
   "midpoint_distance_m": 284.0,
   "start_elevation_m": 187.4247691490914,
   "end_elevation_m": 197.07857620952817,
   "start_xy": [
    911452.632831775,
    6252761.188245563
   ],
   "end_xy": [
    911500.6482173755,
    6252748.101702044
   ]
  },
  "max_100m": {
   "gradient_pct": 17.23365219239227,
   "start_distance_m": 209.0,
   "end_distance_m": 309.0,
   "midpoint_distance_m": 259.0,
   "start_elevation_m": 179.8449240171359,
   "end_elevation_m": 197.07857620952817,
   "start_xy": [
    911410.5132516542,
    6252787.355372513
   ],
   "end_xy": [
    911500.6482173755,
    6252748.101702044
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": 0.27310197120982593,
   "start_distance_m": 0.0,
   "end_distance_m": 5.0,
   "midpoint_distance_m": 2.5,
   "start_elevation_m": 151.9787977685563,
   "end_elevation_m": 151.99245286711678,
   "start_xy": [
    911209.58,
    6252810.364
   ],
   "end_xy": [
    911214.3566890206,
    6252811.841579778
   ]
  },
  "min_10m": {
   "gradient_pct": 3.1354281739857015,
   "start_distance_m": 11.0,
   "end_distance_m": 21.0,
   "midpoint_distance_m": 16.0,
   "start_elevation_m": 152.3864349974613,
   "end_elevation_m": 152.69997781485986,
   "start_xy": [
    911220.0887158455,
    6252813.614675512
   ],
   "end_xy": [
    911229.6420938869,
    6252816.569835067
   ]
  },
  "min_20m": {
   "gradient_pct": 3.364713674272082,
   "start_distance_m": 0.0,
   "end_distance_m": 20.0,
   "midpoint_distance_m": 10.0,
   "start_elevation_m": 151.9787977685563,
   "end_elevation_m": 152.6517405034107,
   "start_xy": [
    911209.58,
    6252810.364
   ],
   "end_xy": [
    911228.6867560827,
    6252816.274319111
   ]
  },
  "min_25m": {
   "gradient_pct": 3.6458768542563575,
   "start_distance_m": 0.0,
   "end_distance_m": 25.0,
   "midpoint_distance_m": 12.5,
   "start_elevation_m": 151.9787977685563,
   "end_elevation_m": 152.89026698212038,
   "start_xy": [
    911209.58,
    6252810.364
   ],
   "end_xy": [
    911233.5436084399,
    6252817.384018202
   ]
  },
  "min_50m": {
   "gradient_pct": 7.867039964595108,
   "start_distance_m": 0.0,
   "end_distance_m": 50.0,
   "midpoint_distance_m": 25.0,
   "start_elevation_m": 151.9787977685563,
   "end_elevation_m": 155.91231775085384,
   "start_xy": [
    911209.58,
    6252810.364
   ],
   "end_xy": [
    911258.4364792701,
    6252818.139343095
   ]
  },
  "min_100m": {
   "gradient_pct": 10.751662985775196,
   "start_distance_m": 0.0,
   "end_distance_m": 100.0,
   "midpoint_distance_m": 50.0,
   "start_elevation_m": 151.9787977685563,
   "end_elevation_m": 162.7304607543315,
   "start_xy": [
    911209.58,
    6252810.364
   ],
   "end_xy": [
    911307.2530995737,
    6252815.97449129
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 46.71137355612558,
   "start_distance_m": 232.0,
   "end_distance_m": 234.0,
   "midpoint_distance_m": 233.0,
   "start_elevation_m": 183.1359829608973,
   "end_elevation_m": 184.07021043201982,
   "start_xy": [
    911429.0242117255,
    6252773.70476548
   ],
   "end_xy": [
    911430.6404389476,
    6252772.526712185
   ]
  },
  "max_3m": {
   "gradient_pct": 34.68822932454051,
   "start_distance_m": 231.0,
   "end_distance_m": 234.0,
   "midpoint_distance_m": 232.5,
   "start_elevation_m": 183.0295635522836,
   "end_elevation_m": 184.07021043201982,
   "start_xy": [
    911428.2160981144,
    6252774.293792128
   ],
   "end_xy": [
    911430.6404389476,
    6252772.526712185
   ]
  }
 },
 "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": 0.019,
   "windows_resited": [],
   "windows_unresolved": [],
   "minima_resited": [
    2.0
   ],
   "minima_unresolved": []
  },
  "overhead_obstruction": {
   "obstruction_threshold_m": 2.0,
   "obstructed_fraction": 0.296,
   "obstruction_max_height_m": 13.49,
   "flagged_windows_m": [
    2,
    3,
    50,
    100
   ]
  },
  "excluded_ranges_m": [
   [
    153.0,
    158.0
   ]
  ],
  "review": [],
  "extent": [
   "may_continue_beyond_end"
  ]
 },
 "provenance": {
  "analysis_version": "0.1.0",
  "run_manifest": {
   "manifest_version": "1",
   "code_git_sha": "41205ec4649bb0a4093af76ff34281a5d9a13832",
   "code_git_dirty": "false",
   "analysis_version": "0.1.0",
   "analysis_config_digest": "sha256:8c94015b54267da4",
   "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-pr4",
   "road_pbf": "block-batch-fr-pr4.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:ba95a0bf562c86eb"
  },
  "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_E911-N6252_0m5@21LHD7PQ-2025-03-14.tif"
  ],
  "calculated_at": "2026-09-25T09:31:40+00:00",
  "road_source": "OpenStreetMap (local PBF extract)",
  "road_attribution": "\u00a9 OpenStreetMap contributors, ODbL",
  "osm_pbf_path": "data/cache/pbf/block-batch-fr-pr4.osm.pbf",
  "osm_snapshot": "",
  "run_id": "fr-pr4",
  "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": [
   "E911-N6252"
  ],
  "elevation_blocks": [
   "21LHD7PQ@2025-03-14"
  ],
  "ign_dalles": [
   "LHD_FXX_0911_6253_MNT_O_0M50_LAMB93_IGN69"
  ],
  "ign_missions": [
   "21LHD7PQ"
  ],
  "ign_editions": [
   "2025-03-14"
  ],
  "ign_dsm_edition": {
   "LHD_FXX_0911_6253_MNT_O_0M50_LAMB93_IGN69": "2025-03-14"
  },
  "climb_origin": "discovered",
  "structure_own_ways": 1,
  "carriageway": {
   "stations": 19,
   "stations_resolved": 19,
   "width_median_m": 4.25,
   "width_p10_m": 2.4,
   "width_min_m": 1.0,
   "width_max_m": 12.0,
   "bounded_share": 0.263,
   "unbounded_share": 0.737,
   "confidence_median": 0.0,
   "width_median_bounded_m": 2.5,
   "window_m": [
    284.0,
    309.0
   ],
   "width_at_max25_m": 5.5,
   "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": 19,
    "stations_resolved": 19,
    "width_median_m": 4.5,
    "width_p10_m": 1.4,
    "width_min_m": 0.5,
    "width_max_m": 12.0,
    "bounded_share": 0.684,
    "unbounded_share": 0.316,
    "confidence_median": 1.0,
    "width_median_bounded_m": 2.75,
    "window_m": [
     284.0,
     309.0
    ],
    "width_at_max25_m": 7.5,
    "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": "Roquevaire",
  "county": "Bouches-du-Rh\u00f4ne",
  "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)"
 }
}