{
 "ocl_version": "0.1.0",
 "name": "Chemin du Cimeti\u00e8re",
 "slug": "chemin-du-cimetiere-3",
 "confidence": "B",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 24.141292225056077,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 529.0,
   "end_distance_m": 531.0,
   "start_elevation_m": 721.735889707279,
   "end_elevation_m": 722.2187155517801,
   "min_gradient_pct": -15.281540627614731
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 23.927281045553173,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 529.0,
   "end_distance_m": 532.0,
   "start_elevation_m": 721.735889707279,
   "end_elevation_m": 722.4537081386455,
   "min_gradient_pct": -14.384260542711521
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 23.425863976467554,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 527.0,
   "end_distance_m": 532.0,
   "start_elevation_m": 721.2824149398222,
   "end_elevation_m": 722.4537081386455,
   "min_gradient_pct": -11.629250005912581
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 22.2885210735285,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 524.0,
   "end_distance_m": 534.0,
   "start_elevation_m": 720.6463198283686,
   "end_elevation_m": 722.8751719357215,
   "min_gradient_pct": -0.3778842098517998
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 21.236415643085138,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 516.0,
   "end_distance_m": 536.0,
   "start_elevation_m": 719.0239298624406,
   "end_elevation_m": 723.2712129910576,
   "min_gradient_pct": 4.377540292233562
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 20.387176304489003,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 514.0,
   "end_distance_m": 539.0,
   "start_elevation_m": 718.6581200977475,
   "end_elevation_m": 723.7549141738698,
   "min_gradient_pct": 4.588611631243111
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 20.05759317376851,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 328.0,
   "end_distance_m": 378.0,
   "start_elevation_m": 689.2878243371274,
   "end_elevation_m": 699.3166209240117,
   "min_gradient_pct": 4.858411689082459
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 19.261232715865845,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 296.0,
   "end_distance_m": 396.0,
   "start_elevation_m": 683.2530096285457,
   "end_elevation_m": 702.5142423444115,
   "min_gradient_pct": 7.023125596808313
  }
 ],
 "shape": {
  "ascent_concentration": 0.304,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 250.0,
  "shape_class": "sustained"
 },
 "length_m": 632.8190824854205,
 "start_elevation_m": 635.741311646482,
 "end_elevation_m": 729.524665896484,
 "endpoint_gain_m": 93.78335425000193,
 "overall_gradient_pct": 14.819931453657233,
 "accumulated_ascent_m": 94.38573439091397,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 23.425863976467554,
   "start_distance_m": 527.0,
   "end_distance_m": 532.0,
   "midpoint_distance_m": 529.5,
   "start_elevation_m": 721.2824149398222,
   "end_elevation_m": 722.4537081386455,
   "start_xy": [
    905477.2944629284,
    6323607.577531244
   ],
   "end_xy": [
    905476.4295303985,
    6323602.652910272
   ]
  },
  "max_10m": {
   "gradient_pct": 22.2885210735285,
   "start_distance_m": 524.0,
   "end_distance_m": 534.0,
   "midpoint_distance_m": 529.0,
   "start_elevation_m": 720.6463198283686,
   "end_elevation_m": 722.8751719357215,
   "start_xy": [
    905476.2213695613,
    6323610.296630237
   ],
   "end_xy": [
    905475.1915073723,
    6323601.116103005
   ]
  },
  "max_20m": {
   "gradient_pct": 21.236415643085138,
   "start_distance_m": 516.0,
   "end_distance_m": 536.0,
   "midpoint_distance_m": 526.0,
   "start_elevation_m": 719.0239298624406,
   "end_elevation_m": 723.2712129910576,
   "start_xy": [
    905472.6140579551,
    6323617.43716964
   ],
   "end_xy": [
    905473.8577522301,
    6323599.625768404
   ]
  },
  "max_25m": {
   "gradient_pct": 20.387176304489003,
   "start_distance_m": 514.0,
   "end_distance_m": 539.0,
   "midpoint_distance_m": 526.5,
   "start_elevation_m": 718.6581200977475,
   "end_elevation_m": 723.7549141738698,
   "start_xy": [
    905471.7122300535,
    6323619.222304491
   ],
   "end_xy": [
    905471.0954832745,
    6323598.618435821
   ]
  },
  "max_50m": {
   "gradient_pct": 20.05759317376851,
   "start_distance_m": 328.0,
   "end_distance_m": 378.0,
   "midpoint_distance_m": 353.0,
   "start_elevation_m": 689.2878243371274,
   "end_elevation_m": 699.3166209240117,
   "start_xy": [
    905563.3995929061,
    6323675.015202727
   ],
   "end_xy": [
    905514.0254985654,
    6323680.758299161
   ]
  },
  "max_100m": {
   "gradient_pct": 19.261232715865845,
   "start_distance_m": 296.0,
   "end_distance_m": 396.0,
   "midpoint_distance_m": 346.0,
   "start_elevation_m": 683.2530096285457,
   "end_elevation_m": 702.5142423444115,
   "start_xy": [
    905593.7342830147,
    6323664.914660403
   ],
   "end_xy": [
    905496.4767975701,
    6323676.8168712
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -11.629250005912581,
   "start_distance_m": 208.0,
   "end_distance_m": 213.0,
   "midpoint_distance_m": 210.5,
   "start_elevation_m": 671.3238659802512,
   "end_elevation_m": 670.7424034799556,
   "start_xy": [
    905641.5553309877,
    6323595.844256279
   ],
   "end_xy": [
    905641.6928002232,
    6323600.842366142
   ]
  },
  "min_10m": {
   "gradient_pct": -0.3778842098517998,
   "start_distance_m": 208.0,
   "end_distance_m": 218.0,
   "midpoint_distance_m": 213.0,
   "start_elevation_m": 671.3238659802512,
   "end_elevation_m": 671.286077559266,
   "start_xy": [
    905641.5553309877,
    6323595.844256279
   ],
   "end_xy": [
    905641.7125074676,
    6323605.839093162
   ]
  },
  "min_20m": {
   "gradient_pct": 4.377540292233562,
   "start_distance_m": 558.0,
   "end_distance_m": 578.0,
   "midpoint_distance_m": 568.0,
   "start_elevation_m": 725.8643987512877,
   "end_elevation_m": 726.7399068097344,
   "start_xy": [
    905454.3355050945,
    6323590.447191332
   ],
   "end_xy": [
    905438.7833487438,
    6323592.418101804
   ]
  },
  "min_25m": {
   "gradient_pct": 4.588611631243111,
   "start_distance_m": 560.0,
   "end_distance_m": 585.0,
   "midpoint_distance_m": 572.5,
   "start_elevation_m": 725.9653100598699,
   "end_elevation_m": 727.1124629676807,
   "start_xy": [
    905453.0852338567,
    6323588.886159035
   ],
   "end_xy": [
    905432.2062849805,
    6323594.813885308
   ]
  },
  "min_50m": {
   "gradient_pct": 4.858411689082459,
   "start_distance_m": 559.0,
   "end_distance_m": 609.0,
   "midpoint_distance_m": 584.0,
   "start_elevation_m": 725.9091019961689,
   "end_elevation_m": 728.3383078407102,
   "start_xy": [
    905453.7103694755,
    6323589.666675183
   ],
   "end_xy": [
    905409.6378806984,
    6323602.978879377
   ]
  },
  "min_100m": {
   "gradient_pct": 7.023125596808313,
   "start_distance_m": 532.0,
   "end_distance_m": 632.0,
   "midpoint_distance_m": 582.0,
   "start_elevation_m": 722.4537081386455,
   "end_elevation_m": 729.4768337354539,
   "start_xy": [
    905476.4295303985,
    6323602.652910272
   ],
   "end_xy": [
    905388.3173209033,
    6323611.560507441
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 24.141292225056077,
   "start_distance_m": 529.0,
   "end_distance_m": 531.0,
   "midpoint_distance_m": 530.0,
   "start_elevation_m": 721.735889707279,
   "end_elevation_m": 722.2187155517801,
   "start_xy": [
    905476.9484899165,
    6323605.607682855
   ],
   "end_xy": [
    905476.6025169045,
    6323603.637834466
   ]
  },
  "max_3m": {
   "gradient_pct": 23.927281045553173,
   "start_distance_m": 529.0,
   "end_distance_m": 532.0,
   "midpoint_distance_m": 530.5,
   "start_elevation_m": 721.735889707279,
   "end_elevation_m": 722.4537081386455,
   "start_xy": [
    905476.9484899165,
    6323605.607682855
   ],
   "end_xy": [
    905476.4295303985,
    6323602.652910272
   ]
  }
 },
 "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": 0.033,
   "obstruction_max_height_m": 19.66,
   "flagged_windows_m": [
    100
   ]
  },
  "review": [],
  "extent": [
   "may_start_earlier"
  ]
 },
 "provenance": {
  "analysis_version": "0.1.0",
  "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_E905-N6323_0m5.tif"
  ],
  "calculated_at": "2026-09-17T02:28:40+00:00",
  "road_source": "OpenStreetMap (local PBF extract)",
  "road_attribution": "\u00a9 OpenStreetMap contributors, ODbL",
  "osm_pbf_path": "data/cache/pbf/block-batch-fr-alps2.osm.pbf",
  "osm_snapshot": "",
  "run_id": "fr-alps2",
  "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": [
   "E905-N6323"
  ],
  "elevation_blocks": [
   "21LHD7PP@2025-04-02"
  ],
  "ign_dalles": [
   "LHD_FXX_0905_6324_MNT_O_0M50_LAMB93_IGN69"
  ],
  "ign_missions": [
   "21LHD7PP"
  ],
  "ign_editions": [
   "2025-04-02"
  ],
  "ign_dsm_edition": {
   "LHD_FXX_0905_6324_MNT_O_0M50_LAMB93_IGN69": "2025-04-02"
  },
  "climb_origin": "discovered",
  "structure_own_ways": 6,
  "carriageway": {
   "stations": 32,
   "stations_resolved": 32,
   "width_median_m": 5.12,
   "width_p10_m": 3.27,
   "width_min_m": 1.5,
   "width_max_m": 10.75,
   "bounded_share": 0.281,
   "unbounded_share": 0.719,
   "confidence_median": 0.0,
   "width_median_bounded_m": 4.5,
   "window_m": [
    514.0,
    539.0
   ],
   "width_at_max25_m": 5.0,
   "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": 32,
    "stations_resolved": 32,
    "width_median_m": 5.38,
    "width_p10_m": 2.55,
    "width_min_m": 0.5,
    "width_max_m": 9.25,
    "bounded_share": 0.812,
    "unbounded_share": 0.188,
    "confidence_median": 1.0,
    "width_median_bounded_m": 4.5,
    "window_m": [
     514.0,
     539.0
    ],
    "width_at_max25_m": 5.75,
    "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": "Simiane-la-Rotonde",
  "county": "Alpes-de-Haute-Provence",
  "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)"
 }
}