{
 "ocl_version": "0.1.0",
 "name": "Rue de la Petite Bruy\u00e8re",
 "slug": "rue-de-la-petite-bruyere",
 "confidence": "B",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 27.987334629460747,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 606.0,
   "end_distance_m": 608.0,
   "start_elevation_m": 548.3908887869665,
   "end_elevation_m": 548.9506354795557,
   "min_gradient_pct": 0.42180453741877955
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 24.396562339306154,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 610.0,
   "end_distance_m": 613.0,
   "start_elevation_m": 549.3502035925462,
   "end_elevation_m": 550.0821004627254,
   "min_gradient_pct": 1.5631451876496765
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 24.830306364390253,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 606.0,
   "end_distance_m": 611.0,
   "start_elevation_m": 548.3908887869665,
   "end_elevation_m": 549.632404105186,
   "min_gradient_pct": 1.6806777814633733
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 23.144856776881397,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 603.0,
   "end_distance_m": 613.0,
   "start_elevation_m": 547.7676147850373,
   "end_elevation_m": 550.0821004627254,
   "min_gradient_pct": 2.209531325650005
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 22.150392442026714,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 492.0,
   "end_distance_m": 512.0,
   "start_elevation_m": 528.7237137527303,
   "end_elevation_m": 533.1537922411356,
   "min_gradient_pct": 2.9796821337276924
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 21.613482483899134,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 487.0,
   "end_distance_m": 512.0,
   "start_elevation_m": 527.7504216201609,
   "end_elevation_m": 533.1537922411356,
   "min_gradient_pct": 3.174716426728537
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 19.767579766237304,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 481.0,
   "end_distance_m": 531.0,
   "start_elevation_m": 526.6541600579018,
   "end_elevation_m": 536.5379499410204,
   "min_gradient_pct": 3.2223845921283782
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 17.596843710153053,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 486.0,
   "end_distance_m": 586.0,
   "start_elevation_m": 527.5534295776156,
   "end_elevation_m": 545.1502732877686,
   "min_gradient_pct": 3.502562291611696
  }
 ],
 "shape": {
  "ascent_concentration": 0.48,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 213.0,
  "shape_class": "stepped"
 },
 "length_m": 622.8574883693834,
 "start_elevation_m": 494.52573959667706,
 "end_elevation_m": 550.9183550781449,
 "endpoint_gain_m": 56.392615481467885,
 "overall_gradient_pct": 9.053855261353853,
 "accumulated_ascent_m": 56.392615481467885,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 24.830306364390253,
   "start_distance_m": 606.0,
   "end_distance_m": 611.0,
   "midpoint_distance_m": 608.5,
   "start_elevation_m": 548.3908887869665,
   "end_elevation_m": 549.632404105186,
   "start_xy": [
    799268.1754613284,
    6523731.244376142
   ],
   "end_xy": [
    799271.1431741562,
    6523735.268389135
   ]
  },
  "max_10m": {
   "gradient_pct": 23.144856776881397,
   "start_distance_m": 603.0,
   "end_distance_m": 613.0,
   "midpoint_distance_m": 608.0,
   "start_elevation_m": 547.7676147850373,
   "end_elevation_m": 550.0821004627254,
   "start_xy": [
    799266.3948336317,
    6523728.829968345
   ],
   "end_xy": [
    799272.3445571348,
    6523736.867316865
   ]
  },
  "max_20m": {
   "gradient_pct": 22.150392442026714,
   "start_distance_m": 492.0,
   "end_distance_m": 512.0,
   "midpoint_distance_m": 502.0,
   "start_elevation_m": 528.7237137527303,
   "end_elevation_m": 533.1537922411356,
   "start_xy": [
    799219.2692932362,
    6523628.928200399
   ],
   "end_xy": [
    799225.4713888671,
    6523647.925998164
   ]
  },
  "max_25m": {
   "gradient_pct": 21.613482483899134,
   "start_distance_m": 487.0,
   "end_distance_m": 512.0,
   "midpoint_distance_m": 499.5,
   "start_elevation_m": 527.7504216201609,
   "end_elevation_m": 533.1537922411356,
   "start_xy": [
    799218.0493961568,
    6523624.079298346
   ],
   "end_xy": [
    799225.4713888671,
    6523647.925998164
   ]
  },
  "max_50m": {
   "gradient_pct": 19.767579766237304,
   "start_distance_m": 481.0,
   "end_distance_m": 531.0,
   "midpoint_distance_m": 506.0,
   "start_elevation_m": 526.6541600579018,
   "end_elevation_m": 536.5379499410204,
   "start_xy": [
    799216.8669731752,
    6523618.19789357
   ],
   "end_xy": [
    799232.6449565869,
    6523665.5034180535
   ]
  },
  "max_100m": {
   "gradient_pct": 17.596843710153053,
   "start_distance_m": 486.0,
   "end_distance_m": 586.0,
   "midpoint_distance_m": 536.0,
   "start_elevation_m": 527.5534295776156,
   "end_elevation_m": 545.1502732877686,
   "start_xy": [
    799217.8214280138,
    6523623.1059498
   ],
   "end_xy": [
    799256.8859486493,
    6523714.767592642
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": 1.6806777814633733,
   "start_distance_m": 142.0,
   "end_distance_m": 147.0,
   "midpoint_distance_m": 144.5,
   "start_elevation_m": 500.5159002735794,
   "end_elevation_m": 500.5999341626526,
   "start_xy": [
    799114.187364105,
    6523295.827190542
   ],
   "end_xy": [
    799115.803854301,
    6523300.558648795
   ]
  },
  "min_10m": {
   "gradient_pct": 2.209531325650005,
   "start_distance_m": 139.0,
   "end_distance_m": 149.0,
   "midpoint_distance_m": 144.0,
   "start_elevation_m": 500.43621454174234,
   "end_elevation_m": 500.65716767430735,
   "start_xy": [
    799113.2198530358,
    6523292.987485921
   ],
   "end_xy": [
    799116.4740063791,
    6523302.443030972
   ]
  },
  "min_20m": {
   "gradient_pct": 2.9796821337276924,
   "start_distance_m": 136.0,
   "end_distance_m": 156.0,
   "midpoint_distance_m": 146.0,
   "start_elevation_m": 500.3284932048757,
   "end_elevation_m": 500.92442963162125,
   "start_xy": [
    799112.2523419664,
    6523290.1477813
   ],
   "end_xy": [
    799118.8195386527,
    6523309.038368595
   ]
  },
  "min_25m": {
   "gradient_pct": 3.174716426728537,
   "start_distance_m": 131.0,
   "end_distance_m": 156.0,
   "midpoint_distance_m": 143.5,
   "start_elevation_m": 500.1307505249391,
   "end_elevation_m": 500.92442963162125,
   "start_xy": [
    799110.6398235175,
    6523285.414940267
   ],
   "end_xy": [
    799118.8195386527,
    6523309.038368595
   ]
  },
  "min_50m": {
   "gradient_pct": 3.2223845921283782,
   "start_distance_m": 99.0,
   "end_distance_m": 149.0,
   "midpoint_distance_m": 124.0,
   "start_elevation_m": 499.04597537824316,
   "end_elevation_m": 500.65716767430735,
   "start_xy": [
    799100.1589730993,
    6523255.180176259
   ],
   "end_xy": [
    799116.4740063791,
    6523302.443030972
   ]
  },
  "min_100m": {
   "gradient_pct": 3.502562291611696,
   "start_distance_m": 70.0,
   "end_distance_m": 170.0,
   "midpoint_distance_m": 120.0,
   "start_elevation_m": 497.97896066845,
   "end_elevation_m": 501.4815229600617,
   "start_xy": [
    799092.3126356526,
    6523227.302465193
   ],
   "end_xy": [
    799123.5106031997,
    6523322.2290438395
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 27.987334629460747,
   "start_distance_m": 606.0,
   "end_distance_m": 608.0,
   "midpoint_distance_m": 607.0,
   "start_elevation_m": 548.3908887869665,
   "end_elevation_m": 548.9506354795557,
   "start_xy": [
    799268.1754613284,
    6523731.244376142
   ],
   "end_xy": [
    799269.3625464595,
    6523732.853981338
   ]
  },
  "max_3m": {
   "gradient_pct": 24.396562339306154,
   "start_distance_m": 610.0,
   "end_distance_m": 613.0,
   "midpoint_distance_m": 611.5,
   "start_elevation_m": 549.3502035925462,
   "end_elevation_m": 550.0821004627254,
   "start_xy": [
    799270.5496315906,
    6523734.463586536
   ],
   "end_xy": [
    799272.3445571348,
    6523736.867316865
   ]
  }
 },
 "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": 0.051,
   "obstruction_max_height_m": 16.1,
   "flagged_windows_m": [
    10,
    100
   ]
  },
  "review": [],
  "extent": [
   "may_continue_beyond_end"
  ]
 },
 "provenance": {
  "analysis_version": "0.1.0",
  "run_manifest": {
   "manifest_version": "1",
   "code_git_sha": "076a8e7f889cfb3c2cf6b3de65a6030c7155b1f0",
   "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-mc7",
   "road_pbf": "block-batch-fr-mc7.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:af4eae1f5df9e232"
  },
  "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_E799-N6523_0m5@22LHD4NL-2025-08-06.tif"
  ],
  "calculated_at": "2026-09-22T15:34:31+00:00",
  "road_source": "OpenStreetMap (local PBF extract)",
  "road_attribution": "\u00a9 OpenStreetMap contributors, ODbL",
  "osm_pbf_path": "data/cache/pbf/block-batch-fr-mc7.osm.pbf",
  "osm_snapshot": "",
  "run_id": "fr-mc7",
  "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": [
   "E799-N6523"
  ],
  "elevation_blocks": [
   "22LHD4NL@2025-08-06"
  ],
  "ign_dalles": [
   "LHD_FXX_0799_6524_MNT_O_0M50_LAMB93_IGN69"
  ],
  "ign_missions": [
   "22LHD4NL"
  ],
  "ign_editions": [
   "2025-08-06"
  ],
  "ign_dsm_edition": {
   "LHD_FXX_0799_6524_MNT_O_0M50_LAMB93_IGN69": "2025-08-06"
  },
  "climb_origin": "discovered",
  "structure_own_ways": 1,
  "carriageway": {
   "stations": 31,
   "stations_resolved": 31,
   "width_median_m": 7.75,
   "width_p10_m": 3.75,
   "width_min_m": 2.5,
   "width_max_m": 11.75,
   "bounded_share": 0.161,
   "unbounded_share": 0.839,
   "confidence_median": 0.0,
   "width_median_bounded_m": 4.5,
   "window_m": [
    487.0,
    512.0
   ],
   "width_at_max25_m": 4.5,
   "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": 31,
    "stations_resolved": 31,
    "width_median_m": 8.5,
    "width_p10_m": 5.25,
    "width_min_m": 2.5,
    "width_max_m": 12.0,
    "bounded_share": 0.387,
    "unbounded_share": 0.613,
    "confidence_median": 0.0,
    "width_median_bounded_m": 6.25,
    "window_m": [
     487.0,
     512.0
    ],
    "width_at_max25_m": 7.0,
    "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": "Rozier-en-Donzy",
  "county": "Loire",
  "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)"
 }
}