{ "ocl_version": "0.1.0", "name": "Route de la Toussuire", "slug": "route-de-la-toussuire", "confidence": "B", "reported_claims": [], "ladder": [ { "window_m": 2.0, "max_gradient_pct": 29.52906662778787, "diagnostic": true, "flags": [ "canopy_or_structure" ], "start_distance_m": 577.0, "end_distance_m": 579.0, "start_elevation_m": 1246.524421152887, "end_elevation_m": 1247.1150024854428, "min_gradient_pct": -6.146459814704031 }, { "window_m": 3.0, "max_gradient_pct": 28.43901640264903, "diagnostic": true, "flags": [ "canopy_or_structure" ], "start_distance_m": 576.0, "end_distance_m": 579.0, "start_elevation_m": 1246.2618319933633, "end_elevation_m": 1247.1150024854428, "min_gradient_pct": -5.642952821616139 }, { "window_m": 5.0, "max_gradient_pct": 27.5973179650191, "diagnostic": false, "flags": [ "canopy_or_structure" ], "start_distance_m": 574.0, "end_distance_m": 579.0, "start_elevation_m": 1245.7351365871918, "end_elevation_m": 1247.1150024854428, "min_gradient_pct": -5.264283472488387 }, { "window_m": 10.0, "max_gradient_pct": 26.14079862141807, "diagnostic": false, "flags": [ "canopy_or_structure" ], "start_distance_m": 538.0, "end_distance_m": 548.0, "start_elevation_m": 1237.243236185342, "end_elevation_m": 1239.857316047484, "min_gradient_pct": -1.949397437490461 }, { "window_m": 20.0, "max_gradient_pct": 25.30535386960196, "diagnostic": false, "flags": [ "canopy_or_structure" ], "start_distance_m": 538.0, "end_distance_m": 558.0, "start_elevation_m": 1237.243236185342, "end_elevation_m": 1242.3043069592625, "min_gradient_pct": 0.5848107510621503 }, { "window_m": 25.0, "max_gradient_pct": 25.154667038096704, "diagnostic": false, "flags": [ "canopy_or_structure" ], "start_distance_m": 538.0, "end_distance_m": 563.0, "start_elevation_m": 1237.243236185342, "end_elevation_m": 1243.5319029448663, "min_gradient_pct": 0.5786962006168324 }, { "window_m": 50.0, "max_gradient_pct": 23.619209276458605, "diagnostic": false, "flags": [ "canopy_or_structure" ], "start_distance_m": 531.0, "end_distance_m": 581.0, "start_elevation_m": 1235.7855445211833, "end_elevation_m": 1247.5951491594126, "min_gradient_pct": 1.2445122508611348 }, { "window_m": 100.0, "max_gradient_pct": 21.54602660137357, "diagnostic": false, "flags": [ "canopy_or_structure" ], "start_distance_m": 484.0, "end_distance_m": 584.0, "start_elevation_m": 1226.6102186377736, "end_elevation_m": 1248.1562452391472, "min_gradient_pct": 1.8058185025142848 } ], "shape": { "ascent_concentration": 0.267, "concentration_window_frac": 0.25, "longest_pitch_10pct_m": 218.0, "shape_class": "sustained" }, "length_m": 5596.809267468182, "start_elevation_m": 1182.880229455563, "end_elevation_m": 1634.5712748593664, "endpoint_gain_m": 451.6910454038034, "overall_gradient_pct": 8.070509889077103, "accumulated_ascent_m": 452.5054471432468, "window_maxima": { "max_5m": { "gradient_pct": 27.5973179650191, "start_distance_m": 574.0, "end_distance_m": 579.0, "midpoint_distance_m": 576.5, "start_elevation_m": 1245.7351365871918, "end_elevation_m": 1247.1150024854428, "start_xy": [ 958657.3017456282, 6466664.502290032 ], "end_xy": [ 958654.0276844213, 6466660.723332078 ] }, "max_10m": { "gradient_pct": 26.14079862141807, "start_distance_m": 538.0, "end_distance_m": 548.0, "midpoint_distance_m": 543.0, "start_elevation_m": 1237.243236185342, "end_elevation_m": 1239.857316047484, "start_xy": [ 958688.3475277796, 6466653.465597863 ], "end_xy": [ 958679.8588074687, 6466658.751581923 ] }, "max_20m": { "gradient_pct": 25.30535386960196, "start_distance_m": 538.0, "end_distance_m": 558.0, "midpoint_distance_m": 548.0, "start_elevation_m": 1237.243236185342, "end_elevation_m": 1242.3043069592625, "start_xy": [ 958688.3475277796, 6466653.465597863 ], "end_xy": [ 958671.3700871578, 6466664.037565983 ] }, "max_25m": { "gradient_pct": 25.154667038096704, "start_distance_m": 538.0, "end_distance_m": 563.0, "midpoint_distance_m": 550.5, "start_elevation_m": 1237.243236185342, "end_elevation_m": 1243.5319029448663, "start_xy": [ 958688.3475277796, 6466653.465597863 ], "end_xy": [ 958667.1257270024, 6466666.680558013 ] }, "max_50m": { "gradient_pct": 23.619209276458605, "start_distance_m": 531.0, "end_distance_m": 581.0, "midpoint_distance_m": 556.0, "start_elevation_m": 1235.7855445211833, "end_elevation_m": 1247.5951491594126, "start_xy": [ 958694.2896319972, 6466649.765409021 ], "end_xy": [ 958652.7180599385, 6466659.211748897 ] }, "max_100m": { "gradient_pct": 21.54602660137357, "start_distance_m": 484.0, "end_distance_m": 584.0, "midpoint_distance_m": 534.0, "start_elevation_m": 1226.6102186377736, "end_elevation_m": 1248.1562452391472, "start_xy": [ 958734.1866174586, 6466624.921283939 ], "end_xy": [ 958650.7536232143, 6466656.9443741245 ] } }, "window_minima": { "min_5m": { "gradient_pct": -5.264283472488387, "start_distance_m": 353.0, "end_distance_m": 358.0, "midpoint_distance_m": 355.5, "start_elevation_m": 1209.3950178336117, "end_elevation_m": 1209.1318036599873, "start_xy": [ 958762.6239806981, 6466503.908205678 ], "end_xy": [ 958761.8919157328, 6466508.8543234365 ] }, "min_10m": { "gradient_pct": -1.949397437490461, "start_distance_m": 619.0, "end_distance_m": 629.0, "midpoint_distance_m": 624.0, "start_elevation_m": 1253.0178899418372, "end_elevation_m": 1252.8229501980882, "start_xy": [ 958641.1130334556, 6466623.731463405 ], "end_xy": [ 958638.9562419289, 6466615.998630593 ] }, "min_20m": { "gradient_pct": 0.5848107510621503, "start_distance_m": 800.0, "end_distance_m": 820.0, "midpoint_distance_m": 810.0, "start_elevation_m": 1265.2307584208659, "end_elevation_m": 1265.3477205710783, "start_xy": [ 958518.9739819971, 6466735.455460975 ], "end_xy": [ 958500.9990386238, 6466744.157739719 ] }, "min_25m": { "gradient_pct": 0.5786962006168324, "start_distance_m": 804.0, "end_distance_m": 829.0, "midpoint_distance_m": 816.5, "start_elevation_m": 1265.2804776004396, "end_elevation_m": 1265.4251516505938, "start_xy": [ 958515.4660275051, 6466737.3775055325 ], "end_xy": [ 958492.5924487207, 6466747.361371444 ] }, "min_50m": { "gradient_pct": 1.2445122508611348, "start_distance_m": 791.0, "end_distance_m": 841.0, "midpoint_distance_m": 816.0, "start_elevation_m": 1265.0639799539094, "end_elevation_m": 1265.68623607934, "start_xy": [ 958526.8668796041, 6466731.13086072 ], "end_xy": [ 958481.2544753025, 6466751.291873647 ] }, "min_100m": { "gradient_pct": 1.8058185025142848, "start_distance_m": 791.0, "end_distance_m": 891.0, "midpoint_distance_m": 841.0, "start_elevation_m": 1265.0639799539094, "end_elevation_m": 1266.8697984564237, "start_xy": [ 958526.8668796041, 6466731.13086072 ], "end_xy": [ 958440.3348772572, 6466737.787973404 ] } }, "diagnostic_window_maxima": { "max_2m": { "gradient_pct": 29.52906662778787, "start_distance_m": 577.0, "end_distance_m": 579.0, "midpoint_distance_m": 578.0, "start_elevation_m": 1246.524421152887, "end_elevation_m": 1247.1150024854428, "start_xy": [ 958655.337308904, 6466662.234915259 ], "end_xy": [ 958654.0276844213, 6466660.723332078 ] }, "max_3m": { "gradient_pct": 28.43901640264903, "start_distance_m": 576.0, "end_distance_m": 579.0, "midpoint_distance_m": 577.5, "start_elevation_m": 1246.2618319933633, "end_elevation_m": 1247.1150024854428, "start_xy": [ 958655.9921211455, 6466662.99070685 ], "end_xy": [ 958654.0276844213, 6466660.723332078 ] } }, "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": 0.029, "obstruction_max_height_m": 16.89, "flagged_windows_m": [ 2, 3, 5, 10, 20, 25, 50, 100 ] }, "review": [], "extent": [ "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_E956-N6467_0m5.tif", "data/cache/fr/ign-lidarhd_dtm_E957-N6466_0m5.tif", "data/cache/fr/ign-lidarhd_dtm_E957-N6467_0m5.tif", "data/cache/fr/ign-lidarhd_dtm_E958-N6466_0m5.tif", "data/cache/fr/ign-lidarhd_dtm_E958-N6467_0m5.tif" ], "calculated_at": "2026-09-17T03:53:04+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": [ "E956-N6467", "E957-N6466", "E957-N6467", "E958-N6466", "E958-N6467" ], "elevation_blocks": [ "21LHD6QM@2025-02-20" ], "ign_dalles": [ "LHD_FXX_0956_6468_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0957_6467_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0957_6468_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0958_6467_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0958_6468_MNT_O_0M50_LAMB93_IGN69" ], "ign_missions": [ "21LHD6QM" ], "ign_editions": [ "2025-02-20" ], "ign_dsm_edition": { "LHD_FXX_0956_6468_MNT_O_0M50_LAMB93_IGN69": "2025-02-20", "LHD_FXX_0957_6467_MNT_O_0M50_LAMB93_IGN69": "2025-02-20", "LHD_FXX_0957_6468_MNT_O_0M50_LAMB93_IGN69": "2025-02-20", "LHD_FXX_0958_6467_MNT_O_0M50_LAMB93_IGN69": "2025-02-20", "LHD_FXX_0958_6468_MNT_O_0M50_LAMB93_IGN69": "2025-02-20" }, "climb_origin": "discovered", "structure_own_ways": 20, "carriageway": { "stations": 230, "stations_resolved": 230, "width_median_m": 8.25, "width_p10_m": 6.0, "width_min_m": 2.75, "width_max_m": 12.0, "bounded_share": 0.27, "unbounded_share": 0.73, "confidence_median": 0.0, "width_median_bounded_m": 8.0, "window_m": [ 538.0, 563.0 ], "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": 230, "stations_resolved": 230, "width_median_m": 9.75, "width_p10_m": 5.48, "width_min_m": 0.5, "width_max_m": 12.0, "bounded_share": 0.417, "unbounded_share": 0.583, "confidence_median": 0.0, "width_median_bounded_m": 8.0, "window_m": [ 538.0, 563.0 ], "width_at_max25_m": 1.0, "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": "Fontcouverte-la-Toussuire", "county": "Savoie", "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)" } }