{ "ocl_version": "0.1.0", "name": "Route de Belle Combe", "slug": "route-de-belle-combe-3", "confidence": "B", "reported_claims": [], "ladder": [ { "window_m": 2.0, "max_gradient_pct": 29.278385234053417, "diagnostic": true, "flags": [], "start_distance_m": 361.0, "end_distance_m": 363.0, "start_elevation_m": 262.83443134680397, "end_elevation_m": 263.41999905148504, "min_gradient_pct": -9.52514766914021 }, { "window_m": 3.0, "max_gradient_pct": 29.292383511779008, "diagnostic": true, "flags": [], "start_distance_m": 360.0, "end_distance_m": 363.0, "start_elevation_m": 262.54122754613167, "end_elevation_m": 263.41999905148504, "min_gradient_pct": -9.362472320030216 }, { "window_m": 5.0, "max_gradient_pct": 28.567171596265553, "diagnostic": false, "flags": [], "start_distance_m": 359.0, "end_distance_m": 364.0, "start_elevation_m": 262.26004542656455, "end_elevation_m": 263.6884040063778, "min_gradient_pct": -9.118843424952274 }, { "window_m": 10.0, "max_gradient_pct": 27.693159674435037, "diagnostic": false, "flags": [], "start_distance_m": 356.0, "end_distance_m": 366.0, "start_elevation_m": 261.4810158938525, "end_elevation_m": 264.250331861296, "min_gradient_pct": -8.855767451348129 }, { "window_m": 20.0, "max_gradient_pct": 26.7675137210108, "diagnostic": false, "flags": [ "canopy_or_structure" ], "start_distance_m": 347.0, "end_distance_m": 367.0, "start_elevation_m": 259.15241796681255, "end_elevation_m": 264.5059207110147, "min_gradient_pct": -7.991456106391581 }, { "window_m": 25.0, "max_gradient_pct": 26.544577164706652, "diagnostic": false, "flags": [], "start_distance_m": 346.0, "end_distance_m": 371.0, "start_elevation_m": 258.8988805807202, "end_elevation_m": 265.53502487189684, "min_gradient_pct": -7.58523097852617 }, { "window_m": 50.0, "max_gradient_pct": 23.305975690709488, "diagnostic": false, "flags": [], "start_distance_m": 332.0, "end_distance_m": 382.0, "start_elevation_m": 256.3325491239171, "end_elevation_m": 267.98553696927183, "min_gradient_pct": -5.711702238288126 }, { "window_m": 100.0, "max_gradient_pct": 20.31621227696104, "diagnostic": false, "flags": [], "start_distance_m": 338.0, "end_distance_m": 438.0, "start_elevation_m": 257.25700900399687, "end_elevation_m": 277.5732212809579, "min_gradient_pct": -2.628612709416643 } ], "shape": { "ascent_concentration": 0.394, "concentration_window_frac": 0.25, "longest_pitch_10pct_m": 202.0, "shape_class": "sustained" }, "length_m": 1971.9002982662373, "start_elevation_m": 235.1824463576686, "end_elevation_m": 356.2348292236338, "endpoint_gain_m": 121.05238286596523, "overall_gradient_pct": 6.138869342045267, "accumulated_ascent_m": 127.37227275743413, "window_maxima": { "max_5m": { "gradient_pct": 28.567171596265553, "start_distance_m": 359.0, "end_distance_m": 364.0, "midpoint_distance_m": 361.5, "start_elevation_m": 262.26004542656455, "end_elevation_m": 263.6884040063778, "start_xy": [ 618325.1485140467, 6395936.825343936 ], "end_xy": [ 618327.539808234, 6395941.216438573 ] }, "max_10m": { "gradient_pct": 27.693159674435037, "start_distance_m": 356.0, "end_distance_m": 366.0, "midpoint_distance_m": 361.0, "start_elevation_m": 261.4810158938525, "end_elevation_m": 264.250331861296, "start_xy": [ 618323.7137375344, 6395934.1906871535 ], "end_xy": [ 618328.4963259089, 6395942.972876428 ] }, "max_20m": { "gradient_pct": 26.7675137210108, "start_distance_m": 347.0, "end_distance_m": 367.0, "midpoint_distance_m": 357.0, "start_elevation_m": 259.15241796681255, "end_elevation_m": 264.5059207110147, "start_xy": [ 618318.1438648257, 6395927.244630958 ], "end_xy": [ 618328.9745847464, 6395943.851095355 ] }, "max_25m": { "gradient_pct": 26.544577164706652, "start_distance_m": 346.0, "end_distance_m": 371.0, "midpoint_distance_m": 358.5, "start_elevation_m": 258.8988805807202, "end_elevation_m": 265.53502487189684, "start_xy": [ 618317.4284912416, 6395926.545888777 ], "end_xy": [ 618330.8876200962, 6395947.363971064 ] }, "max_50m": { "gradient_pct": 23.305975690709488, "start_distance_m": 332.0, "end_distance_m": 382.0, "midpoint_distance_m": 357.0, "start_elevation_m": 256.3325491239171, "end_elevation_m": 267.98553696927183, "start_xy": [ 618305.2894396287, 6395920.455025283 ], "end_xy": [ 618336.1484673081, 6395957.0243792655 ] }, "max_100m": { "gradient_pct": 20.31621227696104, "start_distance_m": 338.0, "end_distance_m": 438.0, "midpoint_distance_m": 388.0, "start_elevation_m": 257.25700900399687, "end_elevation_m": 277.5732212809579, "start_xy": [ 618310.9492817305, 6395921.933362596 ], "end_xy": [ 618364.8091432897, 6396005.0301925745 ] } }, "window_minima": { "min_5m": { "gradient_pct": -9.118843424952274, "start_distance_m": 761.0, "end_distance_m": 766.0, "midpoint_distance_m": 763.5, "start_elevation_m": 295.30117160128236, "end_elevation_m": 294.84522943003475, "start_xy": [ 618319.6128977301, 6396313.292353605 ], "end_xy": [ 618320.431773242, 6396318.222406076 ] }, "min_10m": { "gradient_pct": -8.855767451348129, "start_distance_m": 757.0, "end_distance_m": 767.0, "midpoint_distance_m": 762.0, "start_elevation_m": 295.64643606861694, "end_elevation_m": 294.7608593234821, "start_xy": [ 618318.8361270357, 6396309.3684999775 ], "end_xy": [ 618320.5648006083, 6396319.213518442 ] }, "min_20m": { "gradient_pct": -7.991456106391581, "start_distance_m": 752.0, "end_distance_m": 772.0, "midpoint_distance_m": 762.0, "start_elevation_m": 295.9911967553021, "end_elevation_m": 294.3929055340238, "start_xy": [ 618317.8651636678, 6396304.463682944 ], "end_xy": [ 618321.2299374403, 6396324.169080266 ] }, "min_25m": { "gradient_pct": -7.58523097852617, "start_distance_m": 750.0, "end_distance_m": 775.0, "midpoint_distance_m": 762.5, "start_elevation_m": 296.1175897504987, "end_elevation_m": 294.2212820058672, "start_xy": [ 618317.4767783206, 6396302.50175613 ], "end_xy": [ 618321.6290195395, 6396327.14241736 ] }, "min_50m": { "gradient_pct": -5.711702238288126, "start_distance_m": 731.0, "end_distance_m": 781.0, "midpoint_distance_m": 756.0, "start_elevation_m": 296.82217848618006, "end_elevation_m": 293.966327367036, "start_xy": [ 618314.8495444261, 6396283.699463293 ], "end_xy": [ 618322.4271837379, 6396333.08909155 ] }, "min_100m": { "gradient_pct": -2.628612709416643, "start_distance_m": 715.0, "end_distance_m": 815.0, "midpoint_distance_m": 765.0, "start_elevation_m": 296.76652601875026, "end_elevation_m": 294.1379133093336, "start_xy": [ 618315.4109479083, 6396267.808393901 ], "end_xy": [ 618321.762399579, 6396367.030942358 ] } }, "diagnostic_window_maxima": { "max_2m": { "gradient_pct": 29.278385234053417, "start_distance_m": 361.0, "end_distance_m": 363.0, "midpoint_distance_m": 362.0, "start_elevation_m": 262.83443134680397, "end_elevation_m": 263.41999905148504, "start_xy": [ 618326.1050317216, 6395938.581781791 ], "end_xy": [ 618327.0615493965, 6395940.338219645 ] }, "max_3m": { "gradient_pct": 29.292383511779008, "start_distance_m": 360.0, "end_distance_m": 363.0, "midpoint_distance_m": 361.5, "start_elevation_m": 262.54122754613167, "end_elevation_m": 263.41999905148504, "start_xy": [ 618325.6267728842, 6395937.703562863 ], "end_xy": [ 618327.0615493965, 6395940.338219645 ] } }, "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": 0.23, "obstruction_max_height_m": 18.93, "flagged_windows_m": [ 20 ] }, "review": [], "extent": [ "may_start_earlier" ] }, "provenance": { "analysis_version": "0.1.0", "run_manifest": { "manifest_version": "1", "code_git_sha": "1cc9fdcd6556a02163cb21acb2293cad3067d2a1", "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-mc2", "road_pbf": "block-batch-fr-mc2.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:af4eae1f5df9e232" }, "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_E617-N6395_0m5@22LHD3JN-2025-05-16.tif", "data/cache/fr/ign-lidarhd_dtm_E617-N6396_0m5@22LHD3JN-2025-05-16.tif", "data/cache/fr/ign-lidarhd_dtm_E617-N6397_0m5@22LHD3JN-2025-05-16.tif", "data/cache/fr/ign-lidarhd_dtm_E618-N6395_0m5@22LHD3JN-2025-05-16.tif", "data/cache/fr/ign-lidarhd_dtm_E618-N6396_0m5@22LHD3JN-2025-05-16.tif", "data/cache/fr/ign-lidarhd_dtm_E618-N6397_0m5@22LHD3JN-2025-05-16.tif" ], "calculated_at": "2026-09-22T16:02:23+00:00", "road_source": "OpenStreetMap (local PBF extract)", "road_attribution": "\u00a9 OpenStreetMap contributors, ODbL", "osm_pbf_path": "data/cache/pbf/block-batch-fr-mc2.osm.pbf", "osm_snapshot": "", "run_id": "fr-mc2", "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": [ "E617-N6395", "E617-N6396", "E617-N6397", "E618-N6395", "E618-N6396", "E618-N6397" ], "elevation_blocks": [ "22LHD3JN@2025-05-16" ], "ign_dalles": [ "LHD_FXX_0617_6396_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0617_6397_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0617_6398_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0618_6396_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0618_6397_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0618_6398_MNT_O_0M50_LAMB93_IGN69" ], "ign_missions": [ "22LHD3JN" ], "ign_editions": [ "2025-05-16" ], "ign_dsm_edition": { "LHD_FXX_0617_6396_MNT_O_0M50_LAMB93_IGN69": "2025-05-16", "LHD_FXX_0617_6397_MNT_O_0M50_LAMB93_IGN69": "2025-05-16", "LHD_FXX_0617_6398_MNT_O_0M50_LAMB93_IGN69": "2025-05-16", "LHD_FXX_0618_6396_MNT_O_0M50_LAMB93_IGN69": "2025-05-16", "LHD_FXX_0618_6397_MNT_O_0M50_LAMB93_IGN69": "2025-05-16", "LHD_FXX_0618_6398_MNT_O_0M50_LAMB93_IGN69": "2025-05-16" }, "climb_origin": "discovered", "structure_own_ways": 6, "carriageway": { "stations": 85, "stations_resolved": 85, "width_median_m": 4.25, "width_p10_m": 2.5, "width_min_m": 1.25, "width_max_m": 12.0, "bounded_share": 0.353, "unbounded_share": 0.647, "confidence_median": 0.0, "width_median_bounded_m": 3.75, "window_m": [ 346.0, 371.0 ], "width_at_max25_m": 2.5, "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": 85, "stations_resolved": 85, "width_median_m": 4.5, "width_p10_m": 1.0, "width_min_m": 0.5, "width_max_m": 12.0, "bounded_share": 0.788, "unbounded_share": 0.212, "confidence_median": 1.0, "width_median_bounded_m": 4.0, "window_m": [ 346.0, 371.0 ], "width_at_max25_m": 2.75, "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": "Fons", "county": "Lot", "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)" } }