{
 "ocl_version": "0.1.0",
 "name": "Mont\u00e9e de Saint-R\u00e9m\u00e9ane",
 "slug": "montee-de-saint-remeane",
 "confidence": "B",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 47.688833360584226,
   "diagnostic": true,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 174.0,
   "end_distance_m": 176.0,
   "start_elevation_m": 178.40946047386552,
   "end_elevation_m": 179.3632371410772,
   "min_gradient_pct": -7.94553787157497
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 37.23179025210849,
   "diagnostic": true,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 174.0,
   "end_distance_m": 177.0,
   "start_elevation_m": 178.40946047386552,
   "end_elevation_m": 179.52641418142878,
   "min_gradient_pct": -2.4335879369156523
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 28.655809415349722,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 174.0,
   "end_distance_m": 179.0,
   "start_elevation_m": 178.40946047386552,
   "end_elevation_m": 179.842250944633,
   "min_gradient_pct": 0.6993735130026835
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 25.411019799997234,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 174.0,
   "end_distance_m": 184.0,
   "start_elevation_m": 178.40946047386552,
   "end_elevation_m": 180.95056245386525,
   "min_gradient_pct": 0.9965582474200119
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 20.599574037346002,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 174.0,
   "end_distance_m": 194.0,
   "start_elevation_m": 178.40946047386552,
   "end_elevation_m": 182.52937528133472,
   "min_gradient_pct": 1.2582154857052785
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 20.421037153345424,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 174.0,
   "end_distance_m": 199.0,
   "start_elevation_m": 178.40946047386552,
   "end_elevation_m": 183.51471976220188,
   "min_gradient_pct": 1.3222098366187538
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 18.406264906233446,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 174.0,
   "end_distance_m": 224.0,
   "start_elevation_m": 178.40946047386552,
   "end_elevation_m": 187.61259292698224,
   "min_gradient_pct": 1.9251100024887933
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 16.776876310403793,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 105.0,
   "end_distance_m": 205.0,
   "start_elevation_m": 167.81084975935423,
   "end_elevation_m": 184.58772606975802,
   "min_gradient_pct": 4.027263251241038
  }
 ],
 "shape": {
  "ascent_concentration": 0.462,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 116.0,
  "shape_class": "stepped"
 },
 "length_m": 726.9999999997813,
 "start_elevation_m": 162.47384495703142,
 "end_elevation_m": 224.21461531713226,
 "endpoint_gain_m": 61.74077036010084,
 "overall_gradient_pct": 8.492540627251639,
 "accumulated_ascent_m": 62.065592551365086,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 28.655809415349722,
   "start_distance_m": 174.0,
   "end_distance_m": 179.0,
   "midpoint_distance_m": 176.5,
   "start_elevation_m": 178.40946047386552,
   "end_elevation_m": 179.842250944633,
   "start_xy": [
    854128.0573307462,
    6444380.998459835
   ],
   "end_xy": [
    854130.0887264332,
    6444385.567204909
   ]
  },
  "max_10m": {
   "gradient_pct": 25.411019799997234,
   "start_distance_m": 174.0,
   "end_distance_m": 184.0,
   "midpoint_distance_m": 179.0,
   "start_elevation_m": 178.40946047386552,
   "end_elevation_m": 180.95056245386525,
   "start_xy": [
    854128.0573307462,
    6444380.998459835
   ],
   "end_xy": [
    854132.1201221203,
    6444390.135949985
   ]
  },
  "max_20m": {
   "gradient_pct": 20.599574037346002,
   "start_distance_m": 174.0,
   "end_distance_m": 194.0,
   "midpoint_distance_m": 184.0,
   "start_elevation_m": 178.40946047386552,
   "end_elevation_m": 182.52937528133472,
   "start_xy": [
    854128.0573307462,
    6444380.998459835
   ],
   "end_xy": [
    854136.1829134944,
    6444399.273440136
   ]
  },
  "max_25m": {
   "gradient_pct": 20.421037153345424,
   "start_distance_m": 174.0,
   "end_distance_m": 199.0,
   "midpoint_distance_m": 186.5,
   "start_elevation_m": 178.40946047386552,
   "end_elevation_m": 183.51471976220188,
   "start_xy": [
    854128.0573307462,
    6444380.998459835
   ],
   "end_xy": [
    854138.2143091814,
    6444403.84218521
   ]
  },
  "max_50m": {
   "gradient_pct": 18.406264906233446,
   "start_distance_m": 174.0,
   "end_distance_m": 224.0,
   "midpoint_distance_m": 199.0,
   "start_elevation_m": 178.40946047386552,
   "end_elevation_m": 187.61259292698224,
   "start_xy": [
    854128.0573307462,
    6444380.998459835
   ],
   "end_xy": [
    854148.3712876167,
    6444426.685910587
   ]
  },
  "max_100m": {
   "gradient_pct": 16.776876310403793,
   "start_distance_m": 105.0,
   "end_distance_m": 205.0,
   "midpoint_distance_m": 155.0,
   "start_elevation_m": 167.81084975935423,
   "end_elevation_m": 184.58772606975802,
   "start_xy": [
    854115.9575245954,
    6444313.911452213
   ],
   "end_xy": [
    854140.6519840058,
    6444409.324679301
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": 0.6993735130026835,
   "start_distance_m": 27.0,
   "end_distance_m": 32.0,
   "midpoint_distance_m": 29.5,
   "start_elevation_m": 163.16274961933112,
   "end_elevation_m": 163.19771829498126,
   "start_xy": [
    854105.9891968223,
    6444240.208652419
   ],
   "end_xy": [
    854105.9558841982,
    6444245.2085414445
   ]
  },
  "min_10m": {
   "gradient_pct": 0.9965582474200119,
   "start_distance_m": 27.0,
   "end_distance_m": 37.0,
   "midpoint_distance_m": 32.0,
   "start_elevation_m": 163.16274961933112,
   "end_elevation_m": 163.26240544407312,
   "start_xy": [
    854105.9891968223,
    6444240.208652419
   ],
   "end_xy": [
    854105.9225715741,
    6444250.20843047
   ]
  },
  "min_20m": {
   "gradient_pct": 1.2582154857052785,
   "start_distance_m": 25.0,
   "end_distance_m": 45.0,
   "midpoint_distance_m": 35.0,
   "start_elevation_m": 163.1351151340115,
   "end_elevation_m": 163.38675823115256,
   "start_xy": [
    854106.0025218719,
    6444238.208696809
   ],
   "end_xy": [
    854105.8692713756,
    6444258.208252911
   ]
  },
  "min_25m": {
   "gradient_pct": 1.3222098366187538,
   "start_distance_m": 25.0,
   "end_distance_m": 50.0,
   "midpoint_distance_m": 37.5,
   "start_elevation_m": 163.1351151340115,
   "end_elevation_m": 163.4656675931662,
   "start_xy": [
    854106.0025218719,
    6444238.208696809
   ],
   "end_xy": [
    854105.8359587515,
    6444263.208141937
   ]
  },
  "min_50m": {
   "gradient_pct": 1.9251100024887933,
   "start_distance_m": 22.0,
   "end_distance_m": 72.0,
   "midpoint_distance_m": 47.0,
   "start_elevation_m": 163.08559988738398,
   "end_elevation_m": 164.04815488862837,
   "start_xy": [
    854106.0225094464,
    6444235.208763393
   ],
   "end_xy": [
    854107.5231722327,
    6444283.833052047
   ]
  },
  "min_100m": {
   "gradient_pct": 4.027263251241038,
   "start_distance_m": 347.0,
   "end_distance_m": 447.0,
   "midpoint_distance_m": 397.0,
   "start_elevation_m": 199.8588397626819,
   "end_elevation_m": 203.88610301392293,
   "start_xy": [
    854156.9569943585,
    6444546.7651272
   ],
   "end_xy": [
    854148.9365679914,
    6444646.331178032
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 47.688833360584226,
   "start_distance_m": 174.0,
   "end_distance_m": 176.0,
   "midpoint_distance_m": 175.0,
   "start_elevation_m": 178.40946047386552,
   "end_elevation_m": 179.3632371410772,
   "start_xy": [
    854128.0573307462,
    6444380.998459835
   ],
   "end_xy": [
    854128.869889021,
    6444382.8259578645
   ]
  },
  "max_3m": {
   "gradient_pct": 37.23179025210849,
   "start_distance_m": 174.0,
   "end_distance_m": 177.0,
   "midpoint_distance_m": 175.5,
   "start_elevation_m": 178.40946047386552,
   "end_elevation_m": 179.52641418142878,
   "start_xy": [
    854128.0573307462,
    6444380.998459835
   ],
   "end_xy": [
    854129.2761681584,
    6444383.7397068795
   ]
  }
 },
 "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": 0.089,
   "obstruction_max_height_m": 8.87,
   "flagged_windows_m": [
    2,
    3,
    5,
    10,
    20,
    25
   ]
  },
  "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_E854-N6444_0m5.tif",
   "data/cache/fr/ign-lidarhd_dtm_E854-N6445_0m5.tif"
  ],
  "calculated_at": "2026-09-17T04:49:22+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": [
   "E854-N6444",
   "E854-N6445"
  ],
  "elevation_blocks": [
   "21LHD6OM@2024-10-24"
  ],
  "ign_dalles": [
   "LHD_FXX_0854_6445_MNT_O_0M50_LAMB93_IGN69",
   "LHD_FXX_0854_6446_MNT_O_0M50_LAMB93_IGN69"
  ],
  "ign_missions": [
   "21LHD6OM"
  ],
  "ign_editions": [
   "2024-10-24"
  ],
  "ign_dsm_edition": {
   "LHD_FXX_0854_6445_MNT_O_0M50_LAMB93_IGN69": "2024-10-24",
   "LHD_FXX_0854_6446_MNT_O_0M50_LAMB93_IGN69": "2024-10-24"
  },
  "route_cut_m": 727.0,
  "climb_origin": "discovered",
  "structure_own_ways": "none \u2014 the route carried no way list; own decks unmasked",
  "carriageway": {
   "stations": 36,
   "stations_resolved": 36,
   "width_median_m": 4.12,
   "width_p10_m": 1.62,
   "width_min_m": 0.75,
   "width_max_m": 12.0,
   "bounded_share": 0.333,
   "unbounded_share": 0.667,
   "confidence_median": 0.0,
   "width_median_bounded_m": 3.88,
   "window_m": [
    174.0,
    199.0
   ],
   "width_at_max25_m": 1.75,
   "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": 36,
    "stations_resolved": 36,
    "width_median_m": 5.5,
    "width_p10_m": 1.12,
    "width_min_m": 1.0,
    "width_max_m": 12.0,
    "bounded_share": 0.667,
    "unbounded_share": 0.333,
    "confidence_median": 1.0,
    "width_median_bounded_m": 4.0,
    "window_m": [
     174.0,
     199.0
    ],
    "width_at_max25_m": 1.25,
    "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": "Cl\u00e9rieux",
  "county": "Dr\u00f4me",
  "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)"
 }
}