{ "ocl_version": "0.1.0", "name": "Route du Pertuiset", "slug": "route-du-pertuiset", "confidence": "B", "reported_claims": [], "ladder": [ { "window_m": 2.0, "max_gradient_pct": 31.44944429623706, "diagnostic": true, "flags": [ "canopy_or_structure" ], "start_distance_m": 1172.0, "end_distance_m": 1174.0, "start_elevation_m": 615.8730892186425, "end_elevation_m": 616.5020781045672, "min_gradient_pct": -7.952084347857635 }, { "window_m": 3.0, "max_gradient_pct": 27.465775071891585, "diagnostic": true, "flags": [ "canopy_or_structure" ], "start_distance_m": 1171.0, "end_distance_m": 1174.0, "start_elevation_m": 615.6781048524105, "end_elevation_m": 616.5020781045672, "min_gradient_pct": -5.538755260772632 }, { "window_m": 5.0, "max_gradient_pct": 21.32873014738152, "diagnostic": false, "flags": [ "canopy_or_structure" ], "start_distance_m": 1171.0, "end_distance_m": 1176.0, "start_elevation_m": 615.6781048524105, "end_elevation_m": 616.7445413597795, "min_gradient_pct": -1.874196997046056 }, { "window_m": 10.0, "max_gradient_pct": 17.247863058421444, "diagnostic": false, "flags": [ "canopy_or_structure" ], "start_distance_m": 1226.0, "end_distance_m": 1236.0, "start_elevation_m": 623.2848829038883, "end_elevation_m": 625.0096692097304, "min_gradient_pct": 3.19485064524315 }, { "window_m": 20.0, "max_gradient_pct": 16.737755666065937, "diagnostic": false, "flags": [ "canopy_or_structure" ], "start_distance_m": 1211.0, "end_distance_m": 1231.0, "start_elevation_m": 620.9615610726892, "end_elevation_m": 624.3091122059024, "min_gradient_pct": 3.6032141168391263 }, { "window_m": 25.0, "max_gradient_pct": 16.41387231031149, "diagnostic": false, "flags": [ "canopy_or_structure" ], "start_distance_m": 1208.0, "end_distance_m": 1233.0, "start_elevation_m": 620.4779396836827, "end_elevation_m": 624.5814077612606, "min_gradient_pct": 4.57036666426302 }, { "window_m": 50.0, "max_gradient_pct": 14.883974028695548, "diagnostic": false, "flags": [ "canopy_or_structure" ], "start_distance_m": 825.0, "end_distance_m": 875.0, "start_elevation_m": 577.0822520629838, "end_elevation_m": 584.5242390773316, "min_gradient_pct": 4.725938240453843 }, { "window_m": 100.0, "max_gradient_pct": 14.430422952283607, "diagnostic": false, "flags": [ "canopy_or_structure" ], "start_distance_m": 825.0, "end_distance_m": 925.0, "start_elevation_m": 577.0822520629838, "end_elevation_m": 591.5126750152674, "min_gradient_pct": 4.8156223409736185 } ], "shape": { "ascent_concentration": 0.298, "concentration_window_frac": 0.25, "longest_pitch_10pct_m": 521.0, "shape_class": "sustained" }, "length_m": 2024.3261395806192, "start_elevation_m": 487.34931362243435, "end_elevation_m": 702.4261932240856, "endpoint_gain_m": 215.07687960165129, "overall_gradient_pct": 10.624616033768595, "accumulated_ascent_m": 215.62720987298758, "window_maxima": { "max_5m": { "gradient_pct": 21.32873014738152, "start_distance_m": 1171.0, "end_distance_m": 1176.0, "midpoint_distance_m": 1173.5, "start_elevation_m": 615.6781048524105, "end_elevation_m": 616.7445413597795, "start_xy": [ 929910.3383047418, 6512908.202042399 ], "end_xy": [ 929912.9631713649, 6512903.946448997 ] }, "max_10m": { "gradient_pct": 17.247863058421444, "start_distance_m": 1226.0, "end_distance_m": 1236.0, "midpoint_distance_m": 1231.0, "start_elevation_m": 623.2848829038883, "end_elevation_m": 625.0096692097304, "start_xy": [ 929933.434232292, 6512858.633027721 ], "end_xy": [ 929936.7494543564, 6512849.198553562 ] }, "max_20m": { "gradient_pct": 16.737755666065937, "start_distance_m": 1211.0, "end_distance_m": 1231.0, "midpoint_distance_m": 1221.0, "start_elevation_m": 620.9615610726892, "end_elevation_m": 624.3091122059024, "start_xy": [ 929928.4613991955, 6512872.784738961 ], "end_xy": [ 929935.0918433242, 6512853.915790642 ] }, "max_25m": { "gradient_pct": 16.41387231031149, "start_distance_m": 1208.0, "end_distance_m": 1233.0, "midpoint_distance_m": 1220.5, "start_elevation_m": 620.4779396836827, "end_elevation_m": 624.5814077612606, "start_xy": [ 929927.4668325761, 6512875.615081208 ], "end_xy": [ 929935.7548877371, 6512852.028895809 ] }, "max_50m": { "gradient_pct": 14.883974028695548, "start_distance_m": 825.0, "end_distance_m": 875.0, "midpoint_distance_m": 850.0, "start_elevation_m": 577.0822520629838, "end_elevation_m": 584.5242390773316, "start_xy": [ 929696.8484332155, 6513175.294097359 ], "end_xy": [ 929733.7823548202, 6513141.809115339 ] }, "max_100m": { "gradient_pct": 14.430422952283607, "start_distance_m": 825.0, "end_distance_m": 925.0, "midpoint_distance_m": 875.0, "start_elevation_m": 577.0822520629838, "end_elevation_m": 591.5126750152674, "start_xy": [ 929696.8484332155, 6513175.294097359 ], "end_xy": [ 929765.8706739444, 6513103.641482905 ] } }, "window_minima": { "min_5m": { "gradient_pct": -1.874196997046056, "start_distance_m": 1140.0, "end_distance_m": 1145.0, "midpoint_distance_m": 1142.5, "start_elevation_m": 614.1642971302083, "end_elevation_m": 614.070587280356, "start_xy": [ 929890.3274591456, 6512931.774325117 ], "end_xy": [ 929893.6904072047, 6512928.074246692 ] }, "min_10m": { "gradient_pct": 3.19485064524315, "start_distance_m": 1161.0, "end_distance_m": 1171.0, "midpoint_distance_m": 1166.0, "start_elevation_m": 615.3586197878861, "end_elevation_m": 615.6781048524105, "start_xy": [ 929904.4518409937, 6512916.233995731 ], "end_xy": [ 929910.3383047418, 6512908.202042399 ] }, "min_20m": { "gradient_pct": 3.6032141168391263, "start_distance_m": 1151.0, "end_distance_m": 1171.0, "midpoint_distance_m": 1161.0, "start_elevation_m": 614.9574620290426, "end_elevation_m": 615.6781048524105, "start_xy": [ 929897.7259448756, 6512923.634152581 ], "end_xy": [ 929910.3383047418, 6512908.202042399 ] }, "min_25m": { "gradient_pct": 4.57036666426302, "start_distance_m": 1796.0, "end_distance_m": 1821.0, "midpoint_distance_m": 1808.5, "start_elevation_m": 689.5576311072117, "end_elevation_m": 690.7002227732775, "start_xy": [ 930113.4201291269, 6513257.758070967 ], "end_xy": [ 930106.7142373717, 6513281.3706881115 ] }, "min_50m": { "gradient_pct": 4.725938240453843, "start_distance_m": 1859.0, "end_distance_m": 1909.0, "midpoint_distance_m": 1884.0, "start_elevation_m": 692.613270448504, "end_elevation_m": 694.9762395687309, "start_xy": [ 930110.2669140938, 6513319.203454099 ], "end_xy": [ 930114.6754372086, 6513369.006853833 ] }, "min_100m": { "gradient_pct": 4.8156223409736185, "start_distance_m": 1794.0, "end_distance_m": 1894.0, "midpoint_distance_m": 1844.0, "start_elevation_m": 689.4521385909145, "end_elevation_m": 694.2677609318881, "start_xy": [ 930114.4785358018, 6513256.061080893 ], "end_xy": [ 930113.4595550309, 6513354.056214029 ] } }, "diagnostic_window_maxima": { "max_2m": { "gradient_pct": 31.44944429623706, "start_distance_m": 1172.0, "end_distance_m": 1174.0, "midpoint_distance_m": 1173.0, "start_elevation_m": 615.8730892186425, "end_elevation_m": 616.5020781045672, "start_xy": [ 929910.8632780664, 6512907.350923719 ], "end_xy": [ 929911.9132247156, 6512905.648686358 ] }, "max_3m": { "gradient_pct": 27.465775071891585, "start_distance_m": 1171.0, "end_distance_m": 1174.0, "midpoint_distance_m": 1172.5, "start_elevation_m": 615.6781048524105, "end_elevation_m": 616.5020781045672, "start_xy": [ 929910.3383047418, 6512908.202042399 ], "end_xy": [ 929911.9132247156, 6512905.648686358 ] } }, "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": { "no_bench_suppression": { "masked_fraction": 0.015, "windows_resited": [], "windows_unresolved": [] }, "overhead_obstruction": { "obstruction_threshold_m": 2.0, "obstructed_fraction": 0.281, "obstruction_max_height_m": 26.04, "flagged_windows_m": [ 2, 3, 5, 10, 20, 25, 50, 100 ] }, "excluded_ranges_m": [ [ 1130.0, 1160.0 ] ], "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_E929-N6512_0m5.tif", "data/cache/fr/ign-lidarhd_dtm_E929-N6513_0m5.tif", "data/cache/fr/ign-lidarhd_dtm_E930-N6512_0m5.tif", "data/cache/fr/ign-lidarhd_dtm_E930-N6513_0m5.tif" ], "calculated_at": "2026-09-17T05:01:17+00:00", "road_source": "OpenStreetMap (local PBF extract)", "road_attribution": "\u00a9 OpenStreetMap contributors, ODbL", "osm_pbf_path": "data/cache/pbf/block-batch-fr-alps3.osm.pbf", "osm_snapshot": "", "run_id": "fr-alps3", "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": [ "E929-N6512", "E929-N6513", "E930-N6512", "E930-N6513" ], "elevation_blocks": [ "21LHD6PL@2025-03-07" ], "ign_dalles": [ "LHD_FXX_0929_6513_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0929_6514_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0930_6513_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0930_6514_MNT_O_0M50_LAMB93_IGN69" ], "ign_missions": [ "21LHD6PL" ], "ign_editions": [ "2025-03-07" ], "ign_dsm_edition": { "LHD_FXX_0929_6513_MNT_O_0M50_LAMB93_IGN69": "2025-03-07", "LHD_FXX_0929_6514_MNT_O_0M50_LAMB93_IGN69": "2025-03-07", "LHD_FXX_0930_6513_MNT_O_0M50_LAMB93_IGN69": "2025-03-07", "LHD_FXX_0930_6514_MNT_O_0M50_LAMB93_IGN69": "2025-03-07" }, "climb_origin": "discovered", "structure_own_ways": 4, "carriageway": { "stations": 87, "stations_resolved": 87, "width_median_m": 6.75, "width_p10_m": 4.5, "width_min_m": 1.25, "width_max_m": 12.0, "bounded_share": 0.207, "unbounded_share": 0.793, "confidence_median": 0.0, "width_median_bounded_m": 6.25, "window_m": [ 1208.0, 1233.0 ], "width_at_max25_m": 8.0, "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": 87, "stations_resolved": 87, "width_median_m": 5.25, "width_p10_m": 0.9, "width_min_m": 0.5, "width_max_m": 12.0, "bounded_share": 0.77, "unbounded_share": 0.23, "confidence_median": 1.0, "width_median_bounded_m": 3.5, "window_m": [ 1208.0, 1233.0 ], "width_at_max25_m": 1.75, "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": "Mouxy", "county": "Savoie", "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)" } }