{ "ocl_version": "0.1.0", "name": "Baisse de Tueis from Granges de la Ma\u00efris", "slug": "baisse-de-tueis-from-granges-de-la-mairis", "confidence": "A", "reported_claims": [], "ladder": [ { "window_m": 2.0, "max_gradient_pct": 29.447740602711292, "diagnostic": true, "flags": [ "canopy_or_structure" ], "start_distance_m": 619.0, "end_distance_m": 621.0, "start_elevation_m": 1703.6446494342108, "end_elevation_m": 1704.233604246265, "min_gradient_pct": -13.55418633422687 }, { "window_m": 3.0, "max_gradient_pct": 20.115645449459407, "diagnostic": true, "flags": [], "start_distance_m": 619.0, "end_distance_m": 622.0, "start_elevation_m": 1703.6446494342108, "end_elevation_m": 1704.2481187976946, "min_gradient_pct": -7.346983187486937 }, { "window_m": 5.0, "max_gradient_pct": 17.890028793581223, "diagnostic": false, "flags": [], "start_distance_m": 646.0, "end_distance_m": 651.0, "start_elevation_m": 1705.1618993577708, "end_elevation_m": 1706.05640079745, "min_gradient_pct": -4.003926542031877 }, { "window_m": 10.0, "max_gradient_pct": 12.169586125937712, "diagnostic": false, "flags": [], "start_distance_m": 646.0, "end_distance_m": 656.0, "start_elevation_m": 1705.1618993577708, "end_elevation_m": 1706.3788579703646, "min_gradient_pct": 0.08048438826335769 }, { "window_m": 20.0, "max_gradient_pct": 11.541619930649176, "diagnostic": false, "flags": [], "start_distance_m": 1741.0, "end_distance_m": 1761.0, "start_elevation_m": 1775.5917842163512, "end_elevation_m": 1777.900108202481, "min_gradient_pct": 0.523012299089487 }, { "window_m": 25.0, "max_gradient_pct": 11.278533796402371, "diagnostic": false, "flags": [], "start_distance_m": 1738.0, "end_distance_m": 1763.0, "start_elevation_m": 1775.2867804911798, "end_elevation_m": 1778.1064139402804, "min_gradient_pct": 0.5655329466189869 }, { "window_m": 50.0, "max_gradient_pct": 10.868991933534744, "diagnostic": false, "flags": [], "start_distance_m": 2502.0, "end_distance_m": 2552.0, "start_elevation_m": 1835.6147126127496, "end_elevation_m": 1841.049208579517, "min_gradient_pct": 0.8373638463144744 }, { "window_m": 100.0, "max_gradient_pct": 10.528685192866988, "diagnostic": false, "flags": [], "start_distance_m": 2359.0, "end_distance_m": 2459.0, "start_elevation_m": 1820.871644254824, "end_elevation_m": 1831.400329447691, "min_gradient_pct": 1.383155590855722 } ], "shape": { "ascent_concentration": 0.294, "concentration_window_frac": 0.25, "longest_pitch_10pct_m": 68.0, "shape_class": "sustained" }, "length_m": 3223.4415612626008, "start_elevation_m": 1660.1928383925997, "end_elevation_m": 1886.9550952822324, "endpoint_gain_m": 226.76225688963268, "overall_gradient_pct": 7.034787278749717, "accumulated_ascent_m": 228.13937449414334, "window_maxima": { "max_5m": { "gradient_pct": 17.890028793581223, "start_distance_m": 646.0, "end_distance_m": 651.0, "midpoint_distance_m": 648.5, "start_elevation_m": 1705.1618993577708, "end_elevation_m": 1706.05640079745, "start_xy": [ 1052616.7448553967, 6330231.369112051 ], "end_xy": [ 1052620.6234009915, 6330234.524565119 ] }, "max_10m": { "gradient_pct": 12.169586125937712, "start_distance_m": 646.0, "end_distance_m": 656.0, "midpoint_distance_m": 651.0, "start_elevation_m": 1705.1618993577708, "end_elevation_m": 1706.3788579703646, "start_xy": [ 1052616.7448553967, 6330231.369112051 ], "end_xy": [ 1052624.5019465864, 6330237.680018188 ] }, "max_20m": { "gradient_pct": 11.541619930649176, "start_distance_m": 1741.0, "end_distance_m": 1761.0, "midpoint_distance_m": 1751.0, "start_elevation_m": 1775.5917842163512, "end_elevation_m": 1777.900108202481, "start_xy": [ 1053146.7529054328, 6330853.080903451 ], "end_xy": [ 1053166.033190283, 6330848.263924457 ] }, "max_25m": { "gradient_pct": 11.278533796402371, "start_distance_m": 1738.0, "end_distance_m": 1763.0, "midpoint_distance_m": 1750.5, "start_elevation_m": 1775.2867804911798, "end_elevation_m": 1778.1064139402804, "start_xy": [ 1053144.115908899, 6330854.511375151 ], "end_xy": [ 1053168.0304608284, 6330848.159471749 ] }, "max_50m": { "gradient_pct": 10.868991933534744, "start_distance_m": 2502.0, "end_distance_m": 2552.0, "midpoint_distance_m": 2527.0, "start_elevation_m": 1835.6147126127496, "end_elevation_m": 1841.049208579517, "start_xy": [ 1053423.2789874221, 6331120.517067692 ], "end_xy": [ 1053440.5465839664, 6331167.289350656 ] }, "max_100m": { "gradient_pct": 10.528685192866988, "start_distance_m": 2359.0, "end_distance_m": 2459.0, "midpoint_distance_m": 2409.0, "start_elevation_m": 1820.871644254824, "end_elevation_m": 1831.400329447691, "start_xy": [ 1053315.1200711378, 6331029.00465388 ], "end_xy": [ 1053388.207369406, 6331096.530888446 ] } }, "window_minima": { "min_5m": { "gradient_pct": -4.003926542031877, "start_distance_m": 634.0, "end_distance_m": 639.0, "midpoint_distance_m": 636.5, "start_elevation_m": 1705.020822981071, "end_elevation_m": 1704.8206266539694, "start_xy": [ 1052606.4237830176, 6330225.294374411 ], "end_xy": [ 1052610.7981552903, 6330227.716123205 ] }, "min_10m": { "gradient_pct": 0.08048438826335769, "start_distance_m": 1936.0, "end_distance_m": 1946.0, "midpoint_distance_m": 1941.0, "start_elevation_m": 1790.7798145423253, "end_elevation_m": 1790.7878629811516, "start_xy": [ 1053306.5955281418, 6330919.349530276 ], "end_xy": [ 1053312.1535600808, 6330927.662669332 ] }, "min_20m": { "gradient_pct": 0.523012299089487, "start_distance_m": 1933.0, "end_distance_m": 1953.0, "midpoint_distance_m": 1943.0, "start_elevation_m": 1790.75702109695, "end_elevation_m": 1790.8616235567679, "start_xy": [ 1053304.92811856, 6330916.855588559 ], "end_xy": [ 1053316.3835245692, 6330933.208802603 ] }, "min_25m": { "gradient_pct": 0.5655329466189869, "start_distance_m": 1934.0, "end_distance_m": 1959.0, "midpoint_distance_m": 1946.5, "start_elevation_m": 1790.7577150025954, "end_elevation_m": 1790.8990982392502, "start_xy": [ 1053305.483921754, 6330917.686902465 ], "end_xy": [ 1053320.5424473695, 6330937.5335408775 ] }, "min_50m": { "gradient_pct": 0.8373638463144744, "start_distance_m": 1915.0, "end_distance_m": 1965.0, "midpoint_distance_m": 1940.0, "start_elevation_m": 1790.5544084519292, "end_elevation_m": 1790.9730903750865, "start_xy": [ 1053295.4782648664, 6330901.592973353 ], "end_xy": [ 1053325.0976423055, 6330941.412865026 ] }, "min_100m": { "gradient_pct": 1.383155590855722, "start_distance_m": 1910.0, "end_distance_m": 2010.0, "midpoint_distance_m": 1960.0, "start_elevation_m": 1790.4698804747804, "end_elevation_m": 1791.8530360656362, "start_xy": [ 1053293.533558607, 6330896.986660559 ], "end_xy": [ 1053325.8740591425, 6330960.182752402 ] } }, "diagnostic_window_maxima": { "max_2m": { "gradient_pct": 29.447740602711292, "start_distance_m": 619.0, "end_distance_m": 621.0, "midpoint_distance_m": 620.0, "start_elevation_m": 1703.6446494342108, "end_elevation_m": 1704.233604246265, "start_xy": [ 1052593.3006661993, 6330218.02912803 ], "end_xy": [ 1052595.0504151084, 6330218.997827548 ] }, "max_3m": { "gradient_pct": 20.115645449459407, "start_distance_m": 619.0, "end_distance_m": 622.0, "midpoint_distance_m": 620.5, "start_elevation_m": 1703.6446494342108, "end_elevation_m": 1704.2481187976946, "start_xy": [ 1052593.3006661993, 6330218.02912803 ], "end_xy": [ 1052595.925289563, 6330219.482177306 ] } }, "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": 0.01, "obstruction_max_height_m": 15.55, "flagged_windows_m": [ 2 ] }, "review": [], "extent": [ "may_start_earlier", "may_continue_beyond_end" ] }, "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_E1052-N6329_0m5.tif", "data/cache/fr/ign-lidarhd_dtm_E1052-N6330_0m5.tif", "data/cache/fr/ign-lidarhd_dtm_E1052-N6331_0m5.tif", "data/cache/fr/ign-lidarhd_dtm_E1053-N6330_0m5.tif", "data/cache/fr/ign-lidarhd_dtm_E1053-N6331_0m5.tif" ], "calculated_at": "2026-09-17T02:48:05+00:00", "road_source": "OpenStreetMap (local PBF extract)", "road_attribution": "\u00a9 OpenStreetMap contributors, ODbL", "osm_pbf_path": "data/cache/pbf/block-batch-fr-alps4.osm.pbf", "osm_snapshot": "", "run_id": "fr-alps4", "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": [ "E1052-N6329", "E1052-N6330", "E1052-N6331", "E1053-N6330", "E1053-N6331" ], "elevation_blocks": [ "21LHD8SP@2025-06-20" ], "ign_dalles": [ "LHD_FXX_1052_6330_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_1052_6331_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_1052_6332_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_1053_6331_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_1053_6332_MNT_O_0M50_LAMB93_IGN69" ], "ign_missions": [ "21LHD8SP" ], "ign_editions": [ "2025-06-20" ], "ign_dsm_edition": { "LHD_FXX_1052_6330_MNT_O_0M50_LAMB93_IGN69": "2025-06-20", "LHD_FXX_1052_6331_MNT_O_0M50_LAMB93_IGN69": "2025-06-20", "LHD_FXX_1052_6332_MNT_O_0M50_LAMB93_IGN69": "2025-06-20", "LHD_FXX_1053_6331_MNT_O_0M50_LAMB93_IGN69": "2025-06-20", "LHD_FXX_1053_6332_MNT_O_0M50_LAMB93_IGN69": "2025-06-20" }, "climb_origin": "named-pass", "structure_own_ways": "none \u2014 the route carried no way list; own decks unmasked", "carriageway": { "stations": 135, "stations_resolved": 135, "width_median_m": 6.5, "width_p10_m": 5.25, "width_min_m": 1.0, "width_max_m": 12.0, "bounded_share": 0.674, "unbounded_share": 0.326, "confidence_median": 0.784, "width_median_bounded_m": 6.25, "window_m": [ 1738.0, 1763.0 ], "width_at_max25_m": 8.25, "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": 135, "stations_resolved": 135, "width_median_m": 7.5, "width_p10_m": 5.5, "width_min_m": 0.5, "width_max_m": 12.0, "bounded_share": 0.822, "unbounded_share": 0.178, "confidence_median": 1.0, "width_median_bounded_m": 7.25, "window_m": [ 1738.0, 1763.0 ], "width_at_max25_m": 8.0, "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": "Moulinet", "county": "Alpes-Maritimes", "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)" } }