{
 "ocl_version": "0.1.0",
 "name": "Strada di Carditelli",
 "slug": "strada-di-carditelli",
 "confidence": "A",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 25.411831062924506,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 1009.0,
   "end_distance_m": 1011.0,
   "start_elevation_m": 125.98970657992365,
   "end_elevation_m": 126.49794320118214,
   "min_gradient_pct": -19.223218962343935
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 25.24297902161976,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 1008.0,
   "end_distance_m": 1011.0,
   "start_elevation_m": 125.74065383053355,
   "end_elevation_m": 126.49794320118214,
   "min_gradient_pct": -19.036566067866545
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 24.90396944559876,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 1008.0,
   "end_distance_m": 1013.0,
   "start_elevation_m": 125.74065383053355,
   "end_elevation_m": 126.98585230281348,
   "min_gradient_pct": -19.076095724822437
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 24.623489574447603,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 1006.0,
   "end_distance_m": 1016.0,
   "start_elevation_m": 125.25717011143391,
   "end_elevation_m": 127.71951906887867,
   "min_gradient_pct": -18.292658658215828
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 23.642655950938405,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 1000.0,
   "end_distance_m": 1020.0,
   "start_elevation_m": 123.91408160549818,
   "end_elevation_m": 128.64261279568586,
   "min_gradient_pct": -16.84897829722445
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 22.946406735089393,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 999.0,
   "end_distance_m": 1024.0,
   "start_elevation_m": 123.70977544515021,
   "end_elevation_m": 129.44637712892256,
   "min_gradient_pct": -16.393051759759032
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 19.795448952409032,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 983.0,
   "end_distance_m": 1033.0,
   "start_elevation_m": 121.00918247393555,
   "end_elevation_m": 130.90690695014007,
   "min_gradient_pct": -13.569866628673394
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 14.6081202946811,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 936.0,
   "end_distance_m": 1036.0,
   "start_elevation_m": 116.59933056909091,
   "end_elevation_m": 131.207450863772,
   "min_gradient_pct": -8.231202750093004
  }
 ],
 "shape": {
  "ascent_concentration": 0.469,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 81.0,
  "shape_class": "stepped"
 },
 "length_m": 1280.7621147069915,
 "start_elevation_m": 82.28789830053401,
 "end_elevation_m": 158.34943106170647,
 "endpoint_gain_m": 76.06153276117246,
 "overall_gradient_pct": 5.93877128998101,
 "accumulated_ascent_m": 86.32789187791886,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 24.90396944559876,
   "start_distance_m": 1008.0,
   "end_distance_m": 1013.0,
   "midpoint_distance_m": 1010.5,
   "start_elevation_m": 125.74065383053355,
   "end_elevation_m": 126.98585230281348,
   "start_xy": [
    1184635.5070354561,
    6109993.140743988
   ],
   "end_xy": [
    1184632.294508513,
    6109996.972149819
   ]
  },
  "max_10m": {
   "gradient_pct": 24.623489574447603,
   "start_distance_m": 1006.0,
   "end_distance_m": 1016.0,
   "midpoint_distance_m": 1011.0,
   "start_elevation_m": 125.25717011143391,
   "end_elevation_m": 127.71951906887867,
   "start_xy": [
    1184636.7920462333,
    6109991.608181655
   ],
   "end_xy": [
    1184631.6721728558,
    6109999.850599146
   ]
  },
  "max_20m": {
   "gradient_pct": 23.642655950938405,
   "start_distance_m": 1000.0,
   "end_distance_m": 1020.0,
   "midpoint_distance_m": 1010.0,
   "start_elevation_m": 123.91408160549818,
   "end_elevation_m": 128.64261279568586,
   "start_xy": [
    1184640.6517470463,
    6109987.0146119
   ],
   "end_xy": [
    1184631.166440944,
    6110003.808992378
   ]
  },
  "max_25m": {
   "gradient_pct": 22.946406735089393,
   "start_distance_m": 999.0,
   "end_distance_m": 1024.0,
   "midpoint_distance_m": 1011.5,
   "start_elevation_m": 123.70977544515021,
   "end_elevation_m": 129.44637712892256,
   "start_xy": [
    1184641.331709704,
    6109986.281365158
   ],
   "end_xy": [
    1184632.331384451,
    6110007.635597482
   ]
  },
  "max_50m": {
   "gradient_pct": 19.795448952409032,
   "start_distance_m": 983.0,
   "end_distance_m": 1033.0,
   "midpoint_distance_m": 1008.0,
   "start_elevation_m": 121.00918247393555,
   "end_elevation_m": 130.90690695014007,
   "start_xy": [
    1184651.0335442773,
    6109973.6190047795
   ],
   "end_xy": [
    1184635.437001501,
    6110016.057141013
   ]
  },
  "max_100m": {
   "gradient_pct": 14.6081202946811,
   "start_distance_m": 936.0,
   "end_distance_m": 1036.0,
   "midpoint_distance_m": 986.0,
   "start_elevation_m": 116.59933056909091,
   "end_elevation_m": 131.207450863772,
   "start_xy": [
    1184639.003049903,
    6109931.9386666985
   ],
   "end_xy": [
    1184636.7308611502,
    6110018.763786023
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -19.076095724822437,
   "start_distance_m": 787.0,
   "end_distance_m": 792.0,
   "midpoint_distance_m": 789.5,
   "start_elevation_m": 115.9036509519853,
   "end_elevation_m": 114.94984616574418,
   "start_xy": [
    1184605.2311399356,
    6109789.048005634
   ],
   "end_xy": [
    1184606.5310339325,
    6109793.874207055
   ]
  },
  "min_10m": {
   "gradient_pct": -18.292658658215828,
   "start_distance_m": 785.0,
   "end_distance_m": 795.0,
   "midpoint_distance_m": 790.0,
   "start_elevation_m": 116.25379776567183,
   "end_elevation_m": 114.42453189985025,
   "start_xy": [
    1184604.6625988763,
    6109787.130517417
   ],
   "end_xy": [
    1184607.227730219,
    6109796.792188255
   ]
  },
  "min_20m": {
   "gradient_pct": -16.84897829722445,
   "start_distance_m": 781.0,
   "end_distance_m": 801.0,
   "midpoint_distance_m": 791.0,
   "start_elevation_m": 116.88247292016695,
   "end_elevation_m": 113.51267726072206,
   "start_xy": [
    1184603.525516758,
    6109783.295540982
   ],
   "end_xy": [
    1184608.6211227921,
    6109802.628150655
   ]
  },
  "min_25m": {
   "gradient_pct": -16.393051759759032,
   "start_distance_m": 782.0,
   "end_distance_m": 807.0,
   "midpoint_distance_m": 794.5,
   "start_elevation_m": 116.72796479598712,
   "end_elevation_m": 112.62970185604736,
   "start_xy": [
    1184603.8097872874,
    6109784.254285091
   ],
   "end_xy": [
    1184610.0145153652,
    6109808.464113056
   ]
  },
  "min_50m": {
   "gradient_pct": -13.569866628673394,
   "start_distance_m": 771.0,
   "end_distance_m": 821.0,
   "midpoint_distance_m": 796.0,
   "start_elevation_m": 117.89778275022758,
   "end_elevation_m": 111.11284943589088,
   "start_xy": [
    1184600.6828114619,
    6109773.708099895
   ],
   "end_xy": [
    1184614.5178771638,
    6109821.681332112
   ]
  },
  "min_100m": {
   "gradient_pct": -8.231202750093004,
   "start_distance_m": 739.0,
   "end_distance_m": 839.0,
   "midpoint_distance_m": 789.0,
   "start_elevation_m": 118.78928635138607,
   "end_elevation_m": 110.55808360129306,
   "start_xy": [
    1184588.0766352592,
    6109744.593526574
   ],
   "end_xy": [
    1184620.986973027,
    6109838.451937366
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 25.411831062924506,
   "start_distance_m": 1009.0,
   "end_distance_m": 1011.0,
   "midpoint_distance_m": 1010.0,
   "start_elevation_m": 125.98970657992365,
   "end_elevation_m": 126.49794320118214,
   "start_xy": [
    1184634.8645300674,
    6109993.907025154
   ],
   "end_xy": [
    1184633.5795192902,
    6109995.439587487
   ]
  },
  "max_3m": {
   "gradient_pct": 25.24297902161976,
   "start_distance_m": 1008.0,
   "end_distance_m": 1011.0,
   "midpoint_distance_m": 1009.5,
   "start_elevation_m": 125.74065383053355,
   "end_elevation_m": 126.49794320118214,
   "start_xy": [
    1184635.5070354561,
    6109993.140743988
   ],
   "end_xy": [
    1184633.5795192902,
    6109995.439587487
   ]
  }
 },
 "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": 0.037,
   "obstruction_max_height_m": 8.03,
   "flagged_windows_m": []
  },
  "review": [],
  "extent": [
   "may_continue_beyond_end"
  ]
 },
 "provenance": {
  "analysis_version": "0.1.0",
  "run_manifest": {
   "manifest_version": "1",
   "code_git_sha": "33abfff569d4360542e616d0d42c1b94d0a711fa",
   "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-co1",
   "road_pbf": "block-batch-fr-co1.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": "sha256:2a717d675f2607cc"
  },
  "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_E1184-N6109_0m5@21LHDCorseUT-2025-04-02.tif",
   "data/cache/fr/ign-lidarhd_dtm_E1184-N6110_0m5@21LHDCorseUT-2025-04-02.tif"
  ],
  "calculated_at": "2026-09-25T00:21:39+00:00",
  "road_source": "OpenStreetMap (local PBF extract)",
  "road_attribution": "\u00a9 OpenStreetMap contributors, ODbL",
  "osm_pbf_path": "data/cache/pbf/block-batch-fr-co1.osm.pbf",
  "osm_snapshot": "",
  "run_id": "fr-co1",
  "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": [
   "E1184-N6109",
   "E1184-N6110"
  ],
  "elevation_blocks": [
   "21LHDCorseUT@2025-04-02"
  ],
  "ign_dalles": [
   "LHD_FXX_1184_6110_MNT_O_0M50_LAMB93_IGN78",
   "LHD_FXX_1184_6111_MNT_O_0M50_LAMB93_IGN78"
  ],
  "ign_missions": [
   "21LHDCorseUT"
  ],
  "ign_editions": [
   "2025-04-02"
  ],
  "ign_dsm_edition": {
   "LHD_FXX_1184_6110_MNT_O_0M50_LAMB93_IGN78": "2025-04-02",
   "LHD_FXX_1184_6111_MNT_O_0M50_LAMB93_IGN78": "2025-04-02"
  },
  "climb_origin": "discovered",
  "structure_own_ways": 5,
  "carriageway": {
   "stations": 58,
   "stations_resolved": 58,
   "width_median_m": 5.75,
   "width_p10_m": 3.5,
   "width_min_m": 1.75,
   "width_max_m": 10.75,
   "bounded_share": 0.414,
   "unbounded_share": 0.586,
   "confidence_median": 0.0,
   "width_median_bounded_m": 5.25,
   "window_m": [
    999.0,
    1024.0
   ],
   "width_at_max25_m": 5.25,
   "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": 58,
    "stations_resolved": 58,
    "width_median_m": 5.0,
    "width_p10_m": 2.42,
    "width_min_m": 0.5,
    "width_max_m": 12.0,
    "bounded_share": 0.862,
    "unbounded_share": 0.138,
    "confidence_median": 1.0,
    "width_median_bounded_m": 4.62,
    "window_m": [
     999.0,
     1024.0
    ],
    "width_at_max25_m": 4.5,
    "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": "Bastelicaccia",
  "county": "Corse-du-Sud",
  "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)"
 }
}