{ "ocl_version": "0.1.0", "name": "Route de Rev\u00eaty", "slug": "route-de-revety-3", "confidence": "B", "reported_claims": [], "ladder": [ { "window_m": 2.0, "max_gradient_pct": 40.09059607769814, "diagnostic": true, "flags": [ "structure_excluded", "canopy_or_structure" ], "start_distance_m": 1735.0, "end_distance_m": 1737.0, "start_elevation_m": 675.1149222127966, "end_elevation_m": 675.9167341343506, "min_gradient_pct": -14.730575948038904, "suppressed_max_gradient_pct": 52.727127153946185, "suppressed_location_m": [ 845.0, 847.0 ] }, { "window_m": 3.0, "max_gradient_pct": 33.52740711884129, "diagnostic": true, "flags": [ "structure_excluded", "canopy_or_structure" ], "start_distance_m": 1734.0, "end_distance_m": 1737.0, "start_elevation_m": 674.9109119207853, "end_elevation_m": 675.9167341343506, "min_gradient_pct": -10.48311788835008, "suppressed_max_gradient_pct": 40.69424444201483, "suppressed_location_m": [ 845.0, 848.0 ] }, { "window_m": 5.0, "max_gradient_pct": 32.62003627857894, "diagnostic": false, "flags": [ "canopy_or_structure" ], "start_distance_m": 1732.0, "end_distance_m": 1737.0, "start_elevation_m": 674.2857323204216, "end_elevation_m": 675.9167341343506, "min_gradient_pct": -2.5762818797284126 }, { "window_m": 10.0, "max_gradient_pct": 26.620301896689398, "diagnostic": false, "flags": [ "canopy_or_structure" ], "start_distance_m": 1727.0, "end_distance_m": 1737.0, "start_elevation_m": 673.2547039446816, "end_elevation_m": 675.9167341343506, "min_gradient_pct": 1.670255460730914 }, { "window_m": 20.0, "max_gradient_pct": 19.165816865354373, "diagnostic": false, "flags": [ "canopy_or_structure" ], "start_distance_m": 1717.0, "end_distance_m": 1737.0, "start_elevation_m": 672.0835707612797, "end_elevation_m": 675.9167341343506, "min_gradient_pct": 2.8158199861556454 }, { "window_m": 25.0, "max_gradient_pct": 17.880822085321597, "diagnostic": false, "flags": [ "canopy_or_structure" ], "start_distance_m": 1712.0, "end_distance_m": 1737.0, "start_elevation_m": 671.4465286130202, "end_elevation_m": 675.9167341343506, "min_gradient_pct": 3.1122814391760585 }, { "window_m": 50.0, "max_gradient_pct": 16.152467680953805, "diagnostic": false, "flags": [ "canopy_or_structure" ], "start_distance_m": 1590.0, "end_distance_m": 1640.0, "start_elevation_m": 654.6110155686305, "end_elevation_m": 662.6872494091074, "min_gradient_pct": 3.332216716645121 }, { "window_m": 100.0, "max_gradient_pct": 15.280347805622, "diagnostic": false, "flags": [ "canopy_or_structure" ], "start_distance_m": 1267.0, "end_distance_m": 1367.0, "start_elevation_m": 608.5105629238078, "end_elevation_m": 623.7909107294298, "min_gradient_pct": 5.3340779182322535 } ], "shape": { "ascent_concentration": 0.305, "concentration_window_frac": 0.25, "longest_pitch_10pct_m": 482.0, "shape_class": "sustained" }, "length_m": 1929.096564515341, "start_elevation_m": 473.87765501610266, "end_elevation_m": 698.1518652216555, "endpoint_gain_m": 224.27421020555283, "overall_gradient_pct": 11.625867482787138, "accumulated_ascent_m": 227.19929026987887, "window_maxima": { "max_5m": { "gradient_pct": 32.62003627857894, "start_distance_m": 1732.0, "end_distance_m": 1737.0, "midpoint_distance_m": 1734.5, "start_elevation_m": 674.2857323204216, "end_elevation_m": 675.9167341343506, "start_xy": [ 898199.3525543386, 6463060.329540154 ], "end_xy": [ 898197.5920676471, 6463055.649723212 ] }, "max_10m": { "gradient_pct": 26.620301896689398, "start_distance_m": 1727.0, "end_distance_m": 1737.0, "midpoint_distance_m": 1732.0, "start_elevation_m": 673.2547039446816, "end_elevation_m": 675.9167341343506, "start_xy": [ 898202.1521652904, 6463064.247649158 ], "end_xy": [ 898197.5920676471, 6463055.649723212 ] }, "max_20m": { "gradient_pct": 19.165816865354373, "start_distance_m": 1717.0, "end_distance_m": 1737.0, "midpoint_distance_m": 1727.0, "start_elevation_m": 672.0835707612797, "end_elevation_m": 675.9167341343506, "start_xy": [ 898210.0182106242, 6463070.422220464 ], "end_xy": [ 898197.5920676471, 6463055.649723212 ] }, "max_25m": { "gradient_pct": 17.880822085321597, "start_distance_m": 1712.0, "end_distance_m": 1737.0, "midpoint_distance_m": 1724.5, "start_elevation_m": 671.4465286130202, "end_elevation_m": 675.9167341343506, "start_xy": [ 898213.9512332911, 6463073.509506117 ], "end_xy": [ 898197.5920676471, 6463055.649723212 ] }, "max_50m": { "gradient_pct": 16.152467680953805, "start_distance_m": 1590.0, "end_distance_m": 1640.0, "midpoint_distance_m": 1615.0, "start_elevation_m": 654.6110155686305, "end_elevation_m": 662.6872494091074, "start_xy": [ 898192.3212997149, 6463181.406699584 ], "end_xy": [ 898218.2758500391, 6463138.944941793 ] }, "max_100m": { "gradient_pct": 15.280347805622, "start_distance_m": 1267.0, "end_distance_m": 1367.0, "midpoint_distance_m": 1317.0, "start_elevation_m": 608.5105629238078, "end_elevation_m": 623.7909107294298, "start_xy": [ 898163.5580950723, 6463485.972341709 ], "end_xy": [ 898185.9892838147, 6463400.424148212 ] } }, "window_minima": { "min_5m": { "gradient_pct": -2.5762818797284126, "start_distance_m": 848.0, "end_distance_m": 853.0, "midpoint_distance_m": 850.5, "start_elevation_m": 562.3432194108493, "end_elevation_m": 562.2144053168629, "start_xy": [ 898057.3355153308, 6463383.526242041 ], "end_xy": [ 898058.5553212948, 6463388.339717777 ] }, "min_10m": { "gradient_pct": 1.670255460730914, "start_distance_m": 25.0, "end_distance_m": 35.0, "midpoint_distance_m": 30.0, "start_elevation_m": 475.4407357621571, "end_elevation_m": 475.6077613082302, "start_xy": [ 897878.1586129966, 6463165.8716204325 ], "end_xy": [ 897877.4646073898, 6463155.895731689 ] }, "min_20m": { "gradient_pct": 2.8158199861556454, "start_distance_m": 43.0, "end_distance_m": 63.0, "midpoint_distance_m": 53.0, "start_elevation_m": 476.21310008287173, "end_elevation_m": 476.77626408010286, "start_xy": [ 897876.9094029043, 6463147.915020694 ], "end_xy": [ 897875.880129141, 6463127.9461631095 ] }, "min_25m": { "gradient_pct": 3.1122814391760585, "start_distance_m": 46.0, "end_distance_m": 71.0, "midpoint_distance_m": 58.5, "start_elevation_m": 476.3206070055533, "end_elevation_m": 477.0986773653473, "start_xy": [ 897876.7012012223, 6463144.922254072 ], "end_xy": [ 897875.6745906249, 6463119.948803926 ] }, "min_50m": { "gradient_pct": 3.332216716645121, "start_distance_m": 27.0, "end_distance_m": 77.0, "midpoint_distance_m": 52.0, "start_elevation_m": 475.6593645824677, "end_elevation_m": 477.32547294079023, "start_xy": [ 897878.0198118752, 6463163.876442684 ], "end_xy": [ 897878.930606114, 6463115.162083095 ] }, "min_100m": { "gradient_pct": 5.3340779182322535, "start_distance_m": 0.0, "end_distance_m": 100.0, "midpoint_distance_m": 50.0, "start_elevation_m": 473.87765501610266, "end_elevation_m": 479.2117329343349, "start_xy": [ 897875.996, 6463190.717 ], "end_xy": [ 897895.3492955228, 6463123.21070872 ] } }, "diagnostic_window_maxima": { "max_2m": { "gradient_pct": 40.09059607769814, "start_distance_m": 1735.0, "end_distance_m": 1737.0, "midpoint_distance_m": 1736.0, "start_elevation_m": 675.1149222127966, "end_elevation_m": 675.9167341343506, "start_xy": [ 898198.2962623237, 6463057.521649989 ], "end_xy": [ 898197.5920676471, 6463055.649723212 ] }, "max_3m": { "gradient_pct": 33.52740711884129, "start_distance_m": 1734.0, "end_distance_m": 1737.0, "midpoint_distance_m": 1735.5, "start_elevation_m": 674.9109119207853, "end_elevation_m": 675.9167341343506, "start_xy": [ 898198.648359662, 6463058.457613378 ], "end_xy": [ 898197.5920676471, 6463055.649723212 ] } }, "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": 0.004, "windows_resited": [ 2.0, 3.0 ], "windows_unresolved": [] }, "overhead_obstruction": { "obstruction_threshold_m": 2.0, "obstructed_fraction": 0.53, "obstruction_max_height_m": 22.8, "flagged_windows_m": [ 2, 3, 5, 10, 20, 25, 50, 100 ] }, "excluded_ranges_m": [ [ 841.0, 848.0 ] ], "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_E897-N6462_0m5.tif", "data/cache/fr/ign-lidarhd_dtm_E897-N6463_0m5.tif", "data/cache/fr/ign-lidarhd_dtm_E898-N6462_0m5.tif", "data/cache/fr/ign-lidarhd_dtm_E898-N6463_0m5.tif" ], "calculated_at": "2026-09-17T03:56:25+00:00", "road_source": "OpenStreetMap (local PBF extract)", "road_attribution": "\u00a9 OpenStreetMap contributors, ODbL", "osm_pbf_path": "data/cache/pbf/block-batch-fr-alps2.osm.pbf", "osm_snapshot": "", "run_id": "fr-alps2", "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": [ "E897-N6462", "E897-N6463", "E898-N6462", "E898-N6463" ], "elevation_blocks": [ "21LHD6PM@2025-03-25" ], "ign_dalles": [ "LHD_FXX_0897_6463_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0897_6464_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0898_6463_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0898_6464_MNT_O_0M50_LAMB93_IGN69" ], "ign_missions": [ "21LHD6PM" ], "ign_editions": [ "2025-03-25" ], "ign_dsm_edition": { "LHD_FXX_0897_6463_MNT_O_0M50_LAMB93_IGN69": "2025-03-25", "LHD_FXX_0897_6464_MNT_O_0M50_LAMB93_IGN69": "2025-03-25", "LHD_FXX_0898_6463_MNT_O_0M50_LAMB93_IGN69": "2025-03-25", "LHD_FXX_0898_6464_MNT_O_0M50_LAMB93_IGN69": "2025-03-25" }, "climb_origin": "discovered", "structure_own_ways": 2, "carriageway": { "stations": 84, "stations_resolved": 84, "width_median_m": 5.38, "width_p10_m": 2.33, "width_min_m": 1.0, "width_max_m": 10.25, "bounded_share": 0.202, "unbounded_share": 0.798, "confidence_median": 0.0, "width_median_bounded_m": 5.25, "window_m": [ 1712.0, 1737.0 ], "width_at_max25_m": 2.75, "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": 84, "stations_resolved": 84, "width_median_m": 1.5, "width_p10_m": 0.5, "width_min_m": 0.5, "width_max_m": 10.5, "bounded_share": 0.976, "unbounded_share": 0.024, "confidence_median": 1.0, "width_median_bounded_m": 1.5, "window_m": [ 1712.0, 1737.0 ], "width_at_max25_m": 2.0, "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": "La Rivi\u00e8re", "county": "Is\u00e8re", "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)" } }