{
 "ocl_version": "0.1.0",
 "name": "Avenue Mozart",
 "slug": "avenue-mozart",
 "confidence": "B",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 23.097281948815862,
   "diagnostic": true,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 946.0,
   "end_distance_m": 948.0,
   "start_elevation_m": 316.42313102681186,
   "end_elevation_m": 316.8850766657882,
   "min_gradient_pct": -7.946098860176676
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 22.63203971854561,
   "diagnostic": true,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 946.0,
   "end_distance_m": 949.0,
   "start_elevation_m": 316.42313102681186,
   "end_elevation_m": 317.1020922183682,
   "min_gradient_pct": -7.735455469558398
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 22.347188972739787,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 944.0,
   "end_distance_m": 949.0,
   "start_elevation_m": 315.98473276973124,
   "end_elevation_m": 317.1020922183682,
   "min_gradient_pct": -7.61299556063932
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 21.831227784102794,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 940.0,
   "end_distance_m": 950.0,
   "start_elevation_m": 315.12926812854937,
   "end_elevation_m": 317.31239090695965,
   "min_gradient_pct": -7.228803194325906
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 21.276168629605934,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 934.0,
   "end_distance_m": 954.0,
   "start_elevation_m": 313.8926447175357,
   "end_elevation_m": 318.1478784434569,
   "min_gradient_pct": -6.597226432451748
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 21.024704018452667,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 931.0,
   "end_distance_m": 956.0,
   "start_elevation_m": 313.29771225354045,
   "end_elevation_m": 318.5538882581536,
   "min_gradient_pct": -6.036596816221163
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 19.73370610331881,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 917.0,
   "end_distance_m": 967.0,
   "start_elevation_m": 310.6961669561797,
   "end_elevation_m": 320.5630200078391,
   "min_gradient_pct": -3.135291573433051
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 16.956786694928894,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 893.0,
   "end_distance_m": 993.0,
   "start_elevation_m": 307.4201446741912,
   "end_elevation_m": 324.3769313691201,
   "min_gradient_pct": 1.8411498172327185
  }
 ],
 "shape": {
  "ascent_concentration": 0.484,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 137.0,
  "shape_class": "stepped"
 },
 "length_m": 1059.6946630075358,
 "start_elevation_m": 249.42510463870406,
 "end_elevation_m": 323.97847169739464,
 "endpoint_gain_m": 74.55336705869058,
 "overall_gradient_pct": 7.035363077803894,
 "accumulated_ascent_m": 76.95724320680998,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 22.347188972739787,
   "start_distance_m": 944.0,
   "end_distance_m": 949.0,
   "midpoint_distance_m": 946.5,
   "start_elevation_m": 315.98473276973124,
   "end_elevation_m": 317.1020922183682,
   "start_xy": [
    855630.590569894,
    6506087.79678843
   ],
   "end_xy": [
    855632.5202419563,
    6506083.21487229
   ]
  },
  "max_10m": {
   "gradient_pct": 21.831227784102794,
   "start_distance_m": 940.0,
   "end_distance_m": 950.0,
   "midpoint_distance_m": 945.0,
   "start_elevation_m": 315.12926812854937,
   "end_elevation_m": 317.31239090695965,
   "start_xy": [
    855628.3750294204,
    6506091.1271608425
   ],
   "end_xy": [
    855632.852320692,
    6506082.27162062
   ]
  },
  "max_20m": {
   "gradient_pct": 21.276168629605934,
   "start_distance_m": 934.0,
   "end_distance_m": 954.0,
   "midpoint_distance_m": 944.0,
   "start_elevation_m": 313.8926447175357,
   "end_elevation_m": 318.1478784434569,
   "start_xy": [
    855625.05171871,
    6506096.122719462
   ],
   "end_xy": [
    855634.1806356352,
    6506078.49861394
   ]
  },
  "max_25m": {
   "gradient_pct": 21.024704018452667,
   "start_distance_m": 931.0,
   "end_distance_m": 956.0,
   "midpoint_distance_m": 943.5,
   "start_elevation_m": 313.29771225354045,
   "end_elevation_m": 318.5538882581536,
   "start_xy": [
    855623.3900633547,
    6506098.620498772
   ],
   "end_xy": [
    855634.8447931067,
    6506076.6121106
   ]
  },
  "max_50m": {
   "gradient_pct": 19.73370610331881,
   "start_distance_m": 917.0,
   "end_distance_m": 967.0,
   "midpoint_distance_m": 942.0,
   "start_elevation_m": 310.6961669561797,
   "end_elevation_m": 320.5630200078391,
   "start_xy": [
    855615.0038996249,
    6506109.797569054
   ],
   "end_xy": [
    855638.0281192523,
    6506066.114429572
   ]
  },
  "max_100m": {
   "gradient_pct": 16.956786694928894,
   "start_distance_m": 893.0,
   "end_distance_m": 993.0,
   "midpoint_distance_m": 943.0,
   "start_elevation_m": 307.4201446741912,
   "end_elevation_m": 324.3769313691201,
   "start_xy": [
    855599.3438240492,
    6506127.984433351
   ],
   "end_xy": [
    855642.4155933249,
    6506040.4872941235
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -7.61299556063932,
   "start_distance_m": 1020.0,
   "end_distance_m": 1025.0,
   "midpoint_distance_m": 1022.5,
   "start_elevation_m": 325.20454003931246,
   "end_elevation_m": 324.8238902612805,
   "start_xy": [
    855643.8497186087,
    6506013.586697393
   ],
   "end_xy": [
    855647.0179373194,
    6506009.811074545
   ]
  },
  "min_10m": {
   "gradient_pct": -7.228803194325906,
   "start_distance_m": 1020.0,
   "end_distance_m": 1030.0,
   "midpoint_distance_m": 1025.0,
   "start_elevation_m": 325.20454003931246,
   "end_elevation_m": 324.4816597198799,
   "start_xy": [
    855643.8497186087,
    6506013.586697393
   ],
   "end_xy": [
    855651.8403970689,
    6506009.206845593
   ]
  },
  "min_20m": {
   "gradient_pct": -6.597226432451748,
   "start_distance_m": 1020.0,
   "end_distance_m": 1040.0,
   "midpoint_distance_m": 1030.0,
   "start_elevation_m": 325.20454003931246,
   "end_elevation_m": 323.8850947528221,
   "start_xy": [
    855643.8497186087,
    6506013.586697393
   ],
   "end_xy": [
    855661.8289269685,
    6506008.72802366
   ]
  },
  "min_25m": {
   "gradient_pct": -6.036596816221163,
   "start_distance_m": 1020.0,
   "end_distance_m": 1045.0,
   "midpoint_distance_m": 1032.5,
   "start_elevation_m": 325.20454003931246,
   "end_elevation_m": 323.6953908352572,
   "start_xy": [
    855643.8497186087,
    6506013.586697393
   ],
   "end_xy": [
    855666.8231919184,
    6506008.488612694
   ]
  },
  "min_50m": {
   "gradient_pct": -3.135291573433051,
   "start_distance_m": 1004.0,
   "end_distance_m": 1054.0,
   "midpoint_distance_m": 1029.0,
   "start_elevation_m": 325.251410077239,
   "end_elevation_m": 323.68376429052245,
   "start_xy": [
    855643.6211705002,
    6506029.5850649895
   ],
   "end_xy": [
    855675.8128688281,
    6506008.057672955
   ]
  },
  "min_100m": {
   "gradient_pct": 1.8411498172327185,
   "start_distance_m": 0.0,
   "end_distance_m": 100.0,
   "midpoint_distance_m": 50.0,
   "start_elevation_m": 249.42510463870406,
   "end_elevation_m": 251.26625445593677,
   "start_xy": [
    855699.934,
    6506907.86
   ],
   "end_xy": [
    855672.7117725615,
    6506811.894415668
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 23.097281948815862,
   "start_distance_m": 946.0,
   "end_distance_m": 948.0,
   "midpoint_distance_m": 947.0,
   "start_elevation_m": 316.42313102681186,
   "end_elevation_m": 316.8850766657882,
   "start_xy": [
    855631.524005749,
    6506086.044627301
   ],
   "end_xy": [
    855632.1881632205,
    6506084.158123961
   ]
  },
  "max_3m": {
   "gradient_pct": 22.63203971854561,
   "start_distance_m": 946.0,
   "end_distance_m": 949.0,
   "midpoint_distance_m": 947.5,
   "start_elevation_m": 316.42313102681186,
   "end_elevation_m": 317.1020922183682,
   "start_xy": [
    855631.524005749,
    6506086.044627301
   ],
   "end_xy": [
    855632.5202419563,
    6506083.21487229
   ]
  }
 },
 "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": 0.109,
   "obstruction_max_height_m": 24.07,
   "flagged_windows_m": [
    2,
    3,
    5,
    10,
    20,
    25,
    50,
    100
   ]
  },
  "review": [],
  "extent": []
 },
 "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_E855-N6505_0m5.tif",
   "data/cache/fr/ign-lidarhd_dtm_E855-N6506_0m5.tif"
  ],
  "calculated_at": "2026-09-17T03:47:29+00:00",
  "road_source": "OpenStreetMap (local PBF extract)",
  "road_attribution": "\u00a9 OpenStreetMap contributors, ODbL",
  "osm_pbf_path": "data/cache/pbf/block-batch-fr-alps1.osm.pbf",
  "osm_snapshot": "",
  "run_id": "fr-alps1",
  "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": [
   "E855-N6505",
   "E855-N6506"
  ],
  "elevation_blocks": [
   "21LHD6OL@2025-02-20"
  ],
  "ign_dalles": [
   "LHD_FXX_0855_6506_MNT_O_0M50_LAMB93_IGN69",
   "LHD_FXX_0855_6507_MNT_O_0M50_LAMB93_IGN69"
  ],
  "ign_missions": [
   "21LHD6OL"
  ],
  "ign_editions": [
   "2025-02-20"
  ],
  "ign_dsm_edition": {
   "LHD_FXX_0855_6506_MNT_O_0M50_LAMB93_IGN69": "2025-02-20",
   "LHD_FXX_0855_6507_MNT_O_0M50_LAMB93_IGN69": "2025-02-20"
  },
  "climb_origin": "discovered",
  "structure_own_ways": "none \u2014 the route carried no way list; own decks unmasked",
  "carriageway": {
   "stations": 49,
   "stations_resolved": 49,
   "width_median_m": 8.75,
   "width_p10_m": 4.95,
   "width_min_m": 4.5,
   "width_max_m": 12.0,
   "bounded_share": 0.184,
   "unbounded_share": 0.816,
   "confidence_median": 0.0,
   "width_median_bounded_m": 6.25,
   "window_m": [
    931.0,
    956.0
   ],
   "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": 49,
    "stations_resolved": 49,
    "width_median_m": 8.0,
    "width_p10_m": 2.0,
    "width_min_m": 1.0,
    "width_max_m": 12.0,
    "bounded_share": 0.571,
    "unbounded_share": 0.429,
    "confidence_median": 1.0,
    "width_median_bounded_m": 4.88,
    "window_m": [
     931.0,
     956.0
    ],
    "width_at_max25_m": 2.0,
    "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": "Saint-Pierre-de-Chandieu",
  "county": "Rh\u00f4ne",
  "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)"
 }
}