{
 "ocl_version": "0.1.0",
 "name": "Chemin du R\u00e9servoir",
 "slug": "chemin-du-reservoir-2",
 "confidence": "B",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 30.53186301759183,
   "diagnostic": true,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 117.0,
   "end_distance_m": 119.0,
   "start_elevation_m": 635.4146971354278,
   "end_elevation_m": 636.0253343957796,
   "min_gradient_pct": -20.208741718255396
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 29.13564920772842,
   "diagnostic": true,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 116.0,
   "end_distance_m": 119.0,
   "start_elevation_m": 635.1512649195478,
   "end_elevation_m": 636.0253343957796,
   "min_gradient_pct": -13.98436190039547
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 28.00436213574585,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 114.0,
   "end_distance_m": 119.0,
   "start_elevation_m": 634.6251162889923,
   "end_elevation_m": 636.0253343957796,
   "min_gradient_pct": -6.00275093070195
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 23.21144631240486,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 111.0,
   "end_distance_m": 121.0,
   "start_elevation_m": 634.0921230465285,
   "end_elevation_m": 636.413267677769,
   "min_gradient_pct": 3.5082608014829475
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 22.017632428325555,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 280.0,
   "end_distance_m": 300.0,
   "start_elevation_m": 665.2575314062453,
   "end_elevation_m": 669.6610578919104,
   "min_gradient_pct": 8.10420323201754
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 21.498377021335727,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 276.0,
   "end_distance_m": 301.0,
   "start_elevation_m": 664.4874553984203,
   "end_elevation_m": 669.8620496537542,
   "min_gradient_pct": 9.506972604212933
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 20.687824502632793,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 249.0,
   "end_distance_m": 299.0,
   "start_elevation_m": 659.1047778397822,
   "end_elevation_m": 669.4486900910986,
   "min_gradient_pct": 12.419984281126744
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 19.194377175172917,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 201.0,
   "end_distance_m": 301.0,
   "start_elevation_m": 650.6676724785813,
   "end_elevation_m": 669.8620496537542,
   "min_gradient_pct": 13.40575385331988
  }
 ],
 "shape": {
  "ascent_concentration": 0.296,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 195.0,
  "shape_class": "sustained"
 },
 "length_m": 302.00778752439555,
 "start_elevation_m": 619.6329393457086,
 "end_elevation_m": 670.0227521767508,
 "endpoint_gain_m": 50.38981283104226,
 "overall_gradient_pct": 16.684938240863037,
 "accumulated_ascent_m": 50.80934368805413,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 28.00436213574585,
   "start_distance_m": 114.0,
   "end_distance_m": 119.0,
   "midpoint_distance_m": 116.5,
   "start_elevation_m": 634.6251162889923,
   "end_elevation_m": 636.0253343957796,
   "start_xy": [
    933353.7925904341,
    6583870.320581892
   ],
   "end_xy": [
    933349.0771917902,
    6583871.983415506
   ]
  },
  "max_10m": {
   "gradient_pct": 23.21144631240486,
   "start_distance_m": 111.0,
   "end_distance_m": 121.0,
   "midpoint_distance_m": 116.0,
   "start_elevation_m": 634.0921230465285,
   "end_elevation_m": 636.413267677769,
   "start_xy": [
    933356.6218296204,
    6583869.322881723
   ],
   "end_xy": [
    933347.1910323326,
    6583872.648548951
   ]
  },
  "max_20m": {
   "gradient_pct": 22.017632428325555,
   "start_distance_m": 280.0,
   "end_distance_m": 300.0,
   "midpoint_distance_m": 290.0,
   "start_elevation_m": 665.2575314062453,
   "end_elevation_m": 669.6610578919104,
   "start_xy": [
    933195.3649002612,
    6583918.81986176
   ],
   "end_xy": [
    933175.7891930373,
    6583922.917627821
   ]
  },
  "max_25m": {
   "gradient_pct": 21.498377021335727,
   "start_distance_m": 276.0,
   "end_distance_m": 301.0,
   "midpoint_distance_m": 288.5,
   "start_elevation_m": 664.4874553984203,
   "end_elevation_m": 669.8620496537542,
   "start_xy": [
    933199.2800417059,
    6583918.000308549
   ],
   "end_xy": [
    933174.810407676,
    6583923.1225161245
   ]
  },
  "max_50m": {
   "gradient_pct": 20.687824502632793,
   "start_distance_m": 249.0,
   "end_distance_m": 299.0,
   "midpoint_distance_m": 274.0,
   "start_elevation_m": 659.1047778397822,
   "end_elevation_m": 669.4486900910986,
   "start_xy": [
    933225.707246458,
    6583912.468324367
   ],
   "end_xy": [
    933176.7679783985,
    6583922.712739518
   ]
  },
  "max_100m": {
   "gradient_pct": 19.194377175172917,
   "start_distance_m": 201.0,
   "end_distance_m": 301.0,
   "midpoint_distance_m": 251.0,
   "start_elevation_m": 650.6676724785813,
   "end_elevation_m": 669.8620496537542,
   "start_xy": [
    933271.7412738574,
    6583899.244298088
   ],
   "end_xy": [
    933174.810407676,
    6583923.1225161245
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -6.00275093070195,
   "start_distance_m": 106.0,
   "end_distance_m": 111.0,
   "midpoint_distance_m": 108.5,
   "start_elevation_m": 634.3922605930636,
   "end_elevation_m": 634.0921230465285,
   "start_xy": [
    933361.3308585266,
    6583870.449884296
   ],
   "end_xy": [
    933356.6218296204,
    6583869.322881723
   ]
  },
  "min_10m": {
   "gradient_pct": 3.5082608014829475,
   "start_distance_m": 100.0,
   "end_distance_m": 110.0,
   "midpoint_distance_m": 105.0,
   "start_elevation_m": 633.635099092624,
   "end_elevation_m": 633.9859251727723,
   "start_xy": [
    933366.9801661794,
    6583872.471102505
   ],
   "end_xy": [
    933357.5646534249,
    6583869.102405491
   ]
  },
  "min_20m": {
   "gradient_pct": 8.10420323201754,
   "start_distance_m": 91.0,
   "end_distance_m": 111.0,
   "midpoint_distance_m": 101.0,
   "start_elevation_m": 632.471282400125,
   "end_elevation_m": 634.0921230465285,
   "start_xy": [
    933375.4541276584,
    6583875.502929817
   ],
   "end_xy": [
    933356.6218296204,
    6583869.322881723
   ]
  },
  "min_25m": {
   "gradient_pct": 9.506972604212933,
   "start_distance_m": 86.0,
   "end_distance_m": 111.0,
   "midpoint_distance_m": 98.5,
   "start_elevation_m": 631.7153798954753,
   "end_elevation_m": 634.0921230465285,
   "start_xy": [
    933380.2927763469,
    6583876.134274204
   ],
   "end_xy": [
    933356.6218296204,
    6583869.322881723
   ]
  },
  "min_50m": {
   "gradient_pct": 12.419984281126744,
   "start_distance_m": 63.0,
   "end_distance_m": 113.0,
   "midpoint_distance_m": 88.0,
   "start_elevation_m": 628.2191497913411,
   "end_elevation_m": 634.4291419319045,
   "start_xy": [
    933403.1863183324,
    6583873.923904244
   ],
   "end_xy": [
    933354.7356701628,
    6583869.988015168
   ]
  },
  "min_100m": {
   "gradient_pct": 13.40575385331988,
   "start_distance_m": 11.0,
   "end_distance_m": 111.0,
   "midpoint_distance_m": 61.0,
   "start_elevation_m": 620.6863691932086,
   "end_elevation_m": 634.0921230465285,
   "start_xy": [
    933452.6091602371,
    6583858.547790012
   ],
   "end_xy": [
    933356.6218296204,
    6583869.322881723
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 30.53186301759183,
   "start_distance_m": 117.0,
   "end_distance_m": 119.0,
   "midpoint_distance_m": 118.0,
   "start_elevation_m": 635.4146971354278,
   "end_elevation_m": 636.0253343957796,
   "start_xy": [
    933350.9633512477,
    6583871.31828206
   ],
   "end_xy": [
    933349.0771917902,
    6583871.983415506
   ]
  },
  "max_3m": {
   "gradient_pct": 29.13564920772842,
   "start_distance_m": 116.0,
   "end_distance_m": 119.0,
   "midpoint_distance_m": 117.5,
   "start_elevation_m": 635.1512649195478,
   "end_elevation_m": 636.0253343957796,
   "start_xy": [
    933351.9064309766,
    6583870.985715337
   ],
   "end_xy": [
    933349.0771917902,
    6583871.983415506
   ]
  }
 },
 "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": 0.276,
   "obstruction_max_height_m": 15.38,
   "flagged_windows_m": [
    2,
    3,
    5,
    100
   ]
  },
  "review": [],
  "extent": [
   "may_start_earlier",
   "may_continue_beyond_end"
  ]
 },
 "provenance": {
  "analysis_version": "0.1.0",
  "run_manifest": {
   "manifest_version": "1",
   "code_git_sha": "c4fd6b4a89a9718922c7ed8acdf14e43dcf75a33",
   "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-ju3",
   "road_pbf": "block-batch-fr-ju3.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": "sha256:85c1fbdeafb19036"
  },
  "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_E933-N6583_0m5@22LHD2PJ-2025-07-21.tif"
  ],
  "calculated_at": "2026-09-24T13:24:25+00:00",
  "road_source": "OpenStreetMap (local PBF extract)",
  "road_attribution": "\u00a9 OpenStreetMap contributors, ODbL",
  "osm_pbf_path": "data/cache/pbf/block-batch-fr-ju3.osm.pbf",
  "osm_snapshot": "",
  "run_id": "fr-ju3",
  "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": [
   "E933-N6583"
  ],
  "elevation_blocks": [
   "22LHD2PJ@2025-07-21"
  ],
  "ign_dalles": [
   "LHD_FXX_0933_6584_MNT_O_0M50_LAMB93_IGN69"
  ],
  "ign_missions": [
   "22LHD2PJ"
  ],
  "ign_editions": [
   "2025-07-21"
  ],
  "ign_dsm_edition": {
   "LHD_FXX_0933_6584_MNT_O_0M50_LAMB93_IGN69": "2025-07-21"
  },
  "climb_origin": "discovered",
  "structure_own_ways": 1,
  "carriageway": {
   "stations": 19,
   "stations_resolved": 19,
   "width_median_m": 7.75,
   "width_p10_m": 5.7,
   "width_min_m": 5.0,
   "width_max_m": 11.25,
   "bounded_share": 0.053,
   "unbounded_share": 0.947,
   "confidence_median": 0.0,
   "width_median_bounded_m": 6.0,
   "window_m": [
    276.0,
    301.0
   ],
   "width_at_max25_m": 9.25,
   "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": 19,
    "stations_resolved": 19,
    "width_median_m": 5.25,
    "width_p10_m": 0.7,
    "width_min_m": 0.5,
    "width_max_m": 12.0,
    "bounded_share": 0.737,
    "unbounded_share": 0.263,
    "confidence_median": 1.0,
    "width_median_bounded_m": 3.5,
    "window_m": [
     276.0,
     301.0
    ],
    "width_at_max25_m": 6.75,
    "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": "\u00c9chenevex",
  "county": "Ain",
  "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)"
 }
}