{ "ocl_version": "0.1.0", "name": "Route du G\u00e9oudan", "slug": "route-du-geoudan", "confidence": "U", "reported_claims": [], "ladder": [ { "window_m": 2.0, "max_gradient_pct": 48.46672538533312, "diagnostic": true, "flags": [ "structure_excluded", "canopy_or_structure" ], "start_distance_m": 1160.0, "end_distance_m": 1162.0, "start_elevation_m": 1119.976619923717, "end_elevation_m": 1120.9459544314236, "min_gradient_pct": -37.01311625763992, "suppressed_max_gradient_pct": 54.18626499027823, "suppressed_location_m": [ 322.0, 324.0 ] }, { "window_m": 3.0, "max_gradient_pct": 46.634158012799766, "diagnostic": true, "flags": [ "canopy_or_structure" ], "start_distance_m": 1160.0, "end_distance_m": 1163.0, "start_elevation_m": 1119.976619923717, "end_elevation_m": 1121.375644664101, "min_gradient_pct": -26.78171914288517 }, { "window_m": 5.0, "max_gradient_pct": 42.91505494485136, "diagnostic": false, "flags": [ "canopy_or_structure" ], "start_distance_m": 1158.0, "end_distance_m": 1163.0, "start_elevation_m": 1119.2298919168584, "end_elevation_m": 1121.375644664101, "min_gradient_pct": -21.87965650589831 }, { "window_m": 10.0, "max_gradient_pct": 29.35872774460904, "diagnostic": false, "flags": [ "canopy_or_structure" ], "start_distance_m": 1153.0, "end_distance_m": 1163.0, "start_elevation_m": 1118.43977188964, "end_elevation_m": 1121.375644664101, "min_gradient_pct": -4.229237601884961 }, { "window_m": 20.0, "max_gradient_pct": 22.3621189267908, "diagnostic": false, "flags": [ "canopy_or_structure" ], "start_distance_m": 1143.0, "end_distance_m": 1163.0, "start_elevation_m": 1116.9032208787428, "end_elevation_m": 1121.375644664101, "min_gradient_pct": 2.586234411865007 }, { "window_m": 25.0, "max_gradient_pct": 20.427815255754467, "diagnostic": false, "flags": [ "canopy_or_structure" ], "start_distance_m": 1138.0, "end_distance_m": 1163.0, "start_elevation_m": 1116.2686908501623, "end_elevation_m": 1121.375644664101, "min_gradient_pct": 2.840186165194609 }, { "window_m": 50.0, "max_gradient_pct": 15.399617501993816, "diagnostic": false, "flags": [ "canopy_or_structure" ], "start_distance_m": 1113.0, "end_distance_m": 1163.0, "start_elevation_m": 1113.675835913104, "end_elevation_m": 1121.375644664101, "min_gradient_pct": 5.179259504596303 }, { "window_m": 100.0, "max_gradient_pct": 13.557968353332853, "diagnostic": false, "flags": [ "structure_excluded", "canopy_or_structure" ], "start_distance_m": 1063.0, "end_distance_m": 1163.0, "start_elevation_m": 1107.817676310768, "end_elevation_m": 1121.375644664101, "min_gradient_pct": 6.741699938746933, "suppressed_max_gradient_pct": 13.91561263471408, "suppressed_location_m": [ 297.0, 397.0 ] } ], "shape": { "ascent_concentration": 0.281, "concentration_window_frac": 0.25, "longest_pitch_10pct_m": 208.0, "shape_class": "sustained" }, "length_m": 1212.739752747228, "start_elevation_m": 995.3744989565597, "end_elevation_m": 1125.1446884375687, "endpoint_gain_m": 129.77018948100897, "overall_gradient_pct": 10.700580168749282, "accumulated_ascent_m": 132.87671190396543, "window_maxima": { "max_5m": { "gradient_pct": 42.91505494485136, "start_distance_m": 1158.0, "end_distance_m": 1163.0, "midpoint_distance_m": 1160.5, "start_elevation_m": 1119.2298919168584, "end_elevation_m": 1121.375644664101, "start_xy": [ 1033968.3913466564, 6340128.646665877 ], "end_xy": [ 1033969.5182477991, 6340133.518020289 ] }, "max_10m": { "gradient_pct": 29.35872774460904, "start_distance_m": 1153.0, "end_distance_m": 1163.0, "midpoint_distance_m": 1158.0, "start_elevation_m": 1118.43977188964, "end_elevation_m": 1121.375644664101, "start_xy": [ 1033967.2636989244, 6340123.775484592 ], "end_xy": [ 1033969.5182477991, 6340133.518020289 ] }, "max_20m": { "gradient_pct": 22.3621189267908, "start_distance_m": 1143.0, "end_distance_m": 1163.0, "midpoint_distance_m": 1153.0, "start_elevation_m": 1116.9032208787428, "end_elevation_m": 1121.375644664101, "start_xy": [ 1033965.5773511606, 6340114.063996497 ], "end_xy": [ 1033969.5182477991, 6340133.518020289 ] }, "max_25m": { "gradient_pct": 20.427815255754467, "start_distance_m": 1138.0, "end_distance_m": 1163.0, "midpoint_distance_m": 1150.5, "start_elevation_m": 1116.2686908501623, "end_elevation_m": 1121.375644664101, "start_xy": [ 1033967.1884391815, 6340109.330668345 ], "end_xy": [ 1033969.5182477991, 6340133.518020289 ] }, "max_50m": { "gradient_pct": 15.399617501993816, "start_distance_m": 1113.0, "end_distance_m": 1163.0, "midpoint_distance_m": 1138.0, "start_elevation_m": 1113.675835913104, "end_elevation_m": 1121.375644664101, "start_xy": [ 1033988.2502605947, 6340097.010583087 ], "end_xy": [ 1033969.5182477991, 6340133.518020289 ] }, "max_100m": { "gradient_pct": 13.557968353332853, "start_distance_m": 1063.0, "end_distance_m": 1163.0, "midpoint_distance_m": 1113.0, "start_elevation_m": 1107.817676310768, "end_elevation_m": 1121.375644664101, "start_xy": [ 1033952.7649471875, 6340070.4833352985 ], "end_xy": [ 1033969.5182477991, 6340133.518020289 ] } }, "window_minima": { "min_5m": { "gradient_pct": -21.87965650589831, "start_distance_m": 1163.0, "end_distance_m": 1168.0, "midpoint_distance_m": 1165.5, "start_elevation_m": 1121.375644664101, "end_elevation_m": 1120.281661838806, "start_xy": [ 1033969.5182477991, 6340133.518020289 ], "end_xy": [ 1033973.4158999721, 6340136.489839091 ] }, "min_10m": { "gradient_pct": -4.229237601884961, "start_distance_m": 1163.0, "end_distance_m": 1173.0, "midpoint_distance_m": 1168.0, "start_elevation_m": 1121.375644664101, "end_elevation_m": 1120.9527209039125, "start_xy": [ 1033969.5182477991, 6340133.518020289 ], "end_xy": [ 1033977.5533258102, 6340139.297276968 ] }, "min_20m": { "gradient_pct": 2.586234411865007, "start_distance_m": 467.0, "end_distance_m": 487.0, "midpoint_distance_m": 477.0, "start_elevation_m": 1047.6833988686044, "end_elevation_m": 1048.2006457509774, "start_xy": [ 1033689.1860751052, 6339814.793620972 ], "end_xy": [ 1033707.3095966849, 6339821.041812937 ] }, "min_25m": { "gradient_pct": 2.840186165194609, "start_distance_m": 466.0, "end_distance_m": 491.0, "midpoint_distance_m": 478.5, "start_elevation_m": 1047.634248755744, "end_elevation_m": 1048.3442952970427, "start_xy": [ 1033688.2763704102, 6339815.12754983 ], "end_xy": [ 1033710.9651759294, 6339822.646904376 ] }, "min_50m": { "gradient_pct": 5.179259504596303, "start_distance_m": 460.0, "end_distance_m": 510.0, "midpoint_distance_m": 485.0, "start_elevation_m": 1047.1940327353516, "end_elevation_m": 1049.7836624876497, "start_xy": [ 1033684.3207937271, 6339819.639025542 ], "end_xy": [ 1033729.5049517966, 6339822.951359126 ] }, "min_100m": { "gradient_pct": 6.741699938746933, "start_distance_m": 607.0, "end_distance_m": 707.0, "midpoint_distance_m": 657.0, "start_elevation_m": 1061.6722746960131, "end_elevation_m": 1068.41397463476, "start_xy": [ 1033785.7883650763, 6339899.835847332 ], "end_xy": [ 1033729.4388203428, 6339908.522782661 ] } }, "diagnostic_window_maxima": { "max_2m": { "gradient_pct": 48.46672538533312, "start_distance_m": 1160.0, "end_distance_m": 1162.0, "midpoint_distance_m": 1161.0, "start_elevation_m": 1119.976619923717, "end_elevation_m": 1120.9459544314236, "start_xy": [ 1033968.8421071135, 6340130.595207642 ], "end_xy": [ 1033969.2928675705, 6340132.543749407 ] }, "max_3m": { "gradient_pct": 46.634158012799766, "start_distance_m": 1160.0, "end_distance_m": 1163.0, "midpoint_distance_m": 1161.5, "start_elevation_m": 1119.976619923717, "end_elevation_m": 1121.375644664101, "start_xy": [ 1033968.8421071135, 6340130.595207642 ], "end_xy": [ 1033969.5182477991, 6340133.518020289 ] } }, "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": { "structure_suppression": { "masked_fraction": 0.005, "windows_resited": [ 2.0, 100.0 ], "windows_unresolved": [] }, "no_bench_suppression": { "masked_fraction": 0.026, "windows_resited": [], "windows_unresolved": [] }, "overhead_obstruction": { "obstruction_threshold_m": 2.0, "obstructed_fraction": 0.402, "obstruction_max_height_m": 19.89, "flagged_windows_m": [ 2, 3, 5, 10, 20, 25, 50, 100 ] }, "excluded_ranges_m": [ [ 310.0, 340.0 ] ], "review": [ "short_window_divergence" ], "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_E1033-N6339_0m5.tif", "data/cache/fr/ign-lidarhd_dtm_E1033-N6340_0m5.tif", "data/cache/fr/ign-lidarhd_dtm_E1034-N6339_0m5.tif", "data/cache/fr/ign-lidarhd_dtm_E1034-N6340_0m5.tif" ], "calculated_at": "2026-09-17T02:46:52+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": [ "E1033-N6339", "E1033-N6340", "E1034-N6339", "E1034-N6340" ], "elevation_blocks": [ "21LHD8RO@2025-04-02" ], "ign_dalles": [ "LHD_FXX_1033_6340_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_1033_6341_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_1034_6340_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_1034_6341_MNT_O_0M50_LAMB93_IGN69" ], "ign_missions": [ "21LHD8RO" ], "ign_editions": [ "2025-04-02" ], "ign_dsm_edition": { "LHD_FXX_1033_6340_MNT_O_0M50_LAMB93_IGN69": "2025-04-02", "LHD_FXX_1033_6341_MNT_O_0M50_LAMB93_IGN69": "2025-04-02", "LHD_FXX_1034_6340_MNT_O_0M50_LAMB93_IGN69": "2025-04-02", "LHD_FXX_1034_6341_MNT_O_0M50_LAMB93_IGN69": "2025-04-02" }, "climb_origin": "discovered", "structure_own_ways": "none \u2014 the route carried no way list; own decks unmasked", "carriageway": { "stations": 55, "stations_resolved": 55, "width_median_m": 4.0, "width_p10_m": 2.75, "width_min_m": 1.0, "width_max_m": 10.25, "bounded_share": 0.364, "unbounded_share": 0.636, "confidence_median": 0.0, "width_median_bounded_m": 4.0, "window_m": [ 1138.0, 1163.0 ], "width_at_max25_m": 3.75, "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": 55, "stations_resolved": 55, "width_median_m": 2.5, "width_p10_m": 0.5, "width_min_m": 0.5, "width_max_m": 12.0, "bounded_share": 0.855, "unbounded_share": 0.145, "confidence_median": 1.0, "width_median_bounded_m": 2.0, "window_m": [ 1138.0, 1163.0 ], "width_at_max25_m": 1.5, "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": "Valdeblore", "county": "Alpes-Maritimes", "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)" } }