{ "ocl_version": "0.1.0", "name": "Route du Mont Sal\u00e8ve", "slug": "route-du-mont-saleve-4", "confidence": "B", "reported_claims": [], "ladder": [ { "window_m": 2.0, "max_gradient_pct": 25.690976483292616, "diagnostic": true, "flags": [], "start_distance_m": 4100.0, "end_distance_m": 4102.0, "start_elevation_m": 1144.1385767560232, "end_elevation_m": 1144.652396285689, "min_gradient_pct": -3.074302750547986 }, { "window_m": 3.0, "max_gradient_pct": 25.731121048829664, "diagnostic": true, "flags": [], "start_distance_m": 4099.0, "end_distance_m": 4102.0, "start_elevation_m": 1143.8804626542242, "end_elevation_m": 1144.652396285689, "min_gradient_pct": -1.2452164720419507 }, { "window_m": 5.0, "max_gradient_pct": 25.291520484602188, "diagnostic": false, "flags": [], "start_distance_m": 4099.0, "end_distance_m": 4104.0, "start_elevation_m": 1143.8804626542242, "end_elevation_m": 1145.1450386784543, "min_gradient_pct": 1.136664961961742 }, { "window_m": 10.0, "max_gradient_pct": 24.810215450738724, "diagnostic": false, "flags": [], "start_distance_m": 4098.0, "end_distance_m": 4108.0, "start_elevation_m": 1143.6398532672633, "end_elevation_m": 1146.1208748123372, "min_gradient_pct": 1.3714513315926524 }, { "window_m": 20.0, "max_gradient_pct": 24.000872768471027, "diagnostic": false, "flags": [ "canopy_or_structure" ], "start_distance_m": 4087.0, "end_distance_m": 4107.0, "start_elevation_m": 1141.08832338961, "end_elevation_m": 1145.8884979433042, "min_gradient_pct": 1.641305838536482 }, { "window_m": 25.0, "max_gradient_pct": 23.884317185237705, "diagnostic": false, "flags": [ "canopy_or_structure" ], "start_distance_m": 4085.0, "end_distance_m": 4110.0, "start_elevation_m": 1140.6026381655645, "end_elevation_m": 1146.573717461874, "min_gradient_pct": 1.6612888516579005 }, { "window_m": 50.0, "max_gradient_pct": 22.65971646115304, "diagnostic": false, "flags": [ "canopy_or_structure" ], "start_distance_m": 4084.0, "end_distance_m": 4134.0, "start_elevation_m": 1140.3765428581, "end_elevation_m": 1151.7064010886766, "min_gradient_pct": 1.8256481096541393 }, { "window_m": 100.0, "max_gradient_pct": 21.09324262750124, "diagnostic": false, "flags": [ "canopy_or_structure" ], "start_distance_m": 4049.0, "end_distance_m": 4149.0, "start_elevation_m": 1133.5870298940376, "end_elevation_m": 1154.6802725215389, "min_gradient_pct": 2.0184903247683224 } ], "shape": { "ascent_concentration": 0.338, "concentration_window_frac": 0.25, "longest_pitch_10pct_m": 222.0, "shape_class": "sustained" }, "length_m": 4284.922196696917, "start_elevation_m": 825.5070269243038, "end_elevation_m": 1174.0241372426744, "endpoint_gain_m": 348.51711031837067, "overall_gradient_pct": 8.13356915994949, "accumulated_ascent_m": 348.6092409134576, "window_maxima": { "max_5m": { "gradient_pct": 25.291520484602188, "start_distance_m": 4099.0, "end_distance_m": 4104.0, "midpoint_distance_m": 4101.5, "start_elevation_m": 1143.8804626542242, "end_elevation_m": 1145.1450386784543, "start_xy": [ 944996.0654752641, 6562560.389602399 ], "end_xy": [ 944992.0969677155, 6562563.431139484 ] }, "max_10m": { "gradient_pct": 24.810215450738724, "start_distance_m": 4098.0, "end_distance_m": 4108.0, "midpoint_distance_m": 4103.0, "start_elevation_m": 1143.6398532672633, "end_elevation_m": 1146.1208748123372, "start_xy": [ 944996.8591767738, 6562559.781294983 ], "end_xy": [ 944988.9221616767, 6562565.864369152 ] }, "max_20m": { "gradient_pct": 24.000872768471027, "start_distance_m": 4087.0, "end_distance_m": 4107.0, "midpoint_distance_m": 4097.0, "start_elevation_m": 1141.08832338961, "end_elevation_m": 1145.8884979433042, "start_xy": [ 945006.4371832255, 6562554.521652943 ], "end_xy": [ 944989.7158631864, 6562565.256061735 ] }, "max_25m": { "gradient_pct": 23.884317185237705, "start_distance_m": 4085.0, "end_distance_m": 4110.0, "midpoint_distance_m": 4097.5, "start_elevation_m": 1140.6026381655645, "end_elevation_m": 1146.573717461874, "start_xy": [ 945008.3187171995, 6562553.843545352 ], "end_xy": [ 944987.3347586574, 6562567.080983985 ] }, "max_50m": { "gradient_pct": 22.65971646115304, "start_distance_m": 4084.0, "end_distance_m": 4134.0, "midpoint_distance_m": 4109.0, "start_elevation_m": 1140.3765428581, "end_elevation_m": 1151.7064010886766, "start_xy": [ 945009.2668184037, 6562553.528598259 ], "end_xy": [ 944965.010087775, 6562575.32427253 ] }, "max_100m": { "gradient_pct": 21.09324262750124, "start_distance_m": 4049.0, "end_distance_m": 4149.0, "midpoint_distance_m": 4099.0, "start_elevation_m": 1133.5870298940376, "end_elevation_m": 1154.6802725215389, "start_xy": [ 945044.0072746918, 6562550.604923558 ], "end_xy": [ 944950.8390343373, 6562580.20156653 ] } }, "window_minima": { "min_5m": { "gradient_pct": 1.136664961961742, "start_distance_m": 959.0, "end_distance_m": 964.0, "midpoint_distance_m": 961.5, "start_elevation_m": 893.0865047178245, "end_elevation_m": 893.1433379659226, "start_xy": [ 946437.2645955199, 6562038.07996262 ], "end_xy": [ 946434.5558321892, 6562042.268975624 ] }, "min_10m": { "gradient_pct": 1.3714513315926524, "start_distance_m": 954.0, "end_distance_m": 964.0, "midpoint_distance_m": 959.0, "start_elevation_m": 893.0061928327633, "end_elevation_m": 893.1433379659226, "start_xy": [ 946440.47671512, 6562034.2482152805 ], "end_xy": [ 946434.5558321892, 6562042.268975624 ] }, "min_20m": { "gradient_pct": 1.641305838536482, "start_distance_m": 936.0, "end_distance_m": 956.0, "midpoint_distance_m": 946.0, "start_elevation_m": 892.6956735283794, "end_elevation_m": 893.0239346960867, "start_xy": [ 946455.852594831, 6562025.278928485 ], "end_xy": [ 946439.19186728, 6562035.780914216 ] }, "min_25m": { "gradient_pct": 1.6612888516579005, "start_distance_m": 939.0, "end_distance_m": 964.0, "midpoint_distance_m": 951.5, "start_elevation_m": 892.7280157530081, "end_elevation_m": 893.1433379659226, "start_xy": [ 946453.019950206, 6562026.266918581 ], "end_xy": [ 946434.5558321892, 6562042.268975624 ] }, "min_50m": { "gradient_pct": 1.8256481096541393, "start_distance_m": 933.0, "end_distance_m": 983.0, "midpoint_distance_m": 958.0, "start_elevation_m": 892.6490871470407, "end_elevation_m": 893.5619112018678, "start_xy": [ 946458.7663159685, 6562024.6063904045 ], "end_xy": [ 946426.7587068704, 6562059.564300699 ] }, "min_100m": { "gradient_pct": 2.0184903247683224, "start_distance_m": 1555.0, "end_distance_m": 1655.0, "midpoint_distance_m": 1605.0, "start_elevation_m": 928.6009664061531, "end_elevation_m": 930.6194567309215, "start_xy": [ 946032.411352285, 6562409.729819786 ], "end_xy": [ 945953.8190191311, 6562348.535043734 ] } }, "diagnostic_window_maxima": { "max_2m": { "gradient_pct": 25.690976483292616, "start_distance_m": 4100.0, "end_distance_m": 4102.0, "midpoint_distance_m": 4101.0, "start_elevation_m": 1144.1385767560232, "end_elevation_m": 1144.652396285689, "start_xy": [ 944995.2717737544, 6562560.997909816 ], "end_xy": [ 944993.684370735, 6562562.21452465 ] }, "max_3m": { "gradient_pct": 25.731121048829664, "start_distance_m": 4099.0, "end_distance_m": 4102.0, "midpoint_distance_m": 4100.5, "start_elevation_m": 1143.8804626542242, "end_elevation_m": 1144.652396285689, "start_xy": [ 944996.0654752641, 6562560.389602399 ], "end_xy": [ 944993.684370735, 6562562.21452465 ] } }, "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": 0.137, "obstruction_max_height_m": 20.49, "flagged_windows_m": [ 20, 25, 50, 100 ] }, "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_E944-N6562_0m5.tif", "data/cache/fr/ign-lidarhd_dtm_E945-N6562_0m5.tif", "data/cache/fr/ign-lidarhd_dtm_E946-N6562_0m5.tif" ], "calculated_at": "2026-09-17T03:49:00+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": [ "E944-N6562", "E945-N6562", "E946-N6562" ], "elevation_blocks": [ "21LHD5PK1@2024-12-19" ], "ign_dalles": [ "LHD_FXX_0944_6563_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0945_6563_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0946_6563_MNT_O_0M50_LAMB93_IGN69" ], "ign_missions": [ "21LHD5PK1" ], "ign_editions": [ "2024-12-19" ], "ign_dsm_edition": { "LHD_FXX_0944_6563_MNT_O_0M50_LAMB93_IGN69": "2024-12-19", "LHD_FXX_0945_6563_MNT_O_0M50_LAMB93_IGN69": "2024-12-19", "LHD_FXX_0946_6563_MNT_O_0M50_LAMB93_IGN69": "2024-12-19" }, "climb_origin": "discovered", "structure_own_ways": 7, "carriageway": { "stations": 177, "stations_resolved": 177, "width_median_m": 7.0, "width_p10_m": 5.0, "width_min_m": 2.5, "width_max_m": 12.0, "bounded_share": 0.373, "unbounded_share": 0.627, "confidence_median": 0.0, "width_median_bounded_m": 6.75, "window_m": [ 4085.0, 4110.0 ], "width_at_max25_m": 4.75, "window_stations": 6, "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": 177, "stations_resolved": 177, "width_median_m": 7.75, "width_p10_m": 1.0, "width_min_m": 0.0, "width_max_m": 12.0, "bounded_share": 0.667, "unbounded_share": 0.333, "confidence_median": 1.0, "width_median_bounded_m": 5.0, "window_m": [ 4085.0, 4110.0 ], "width_at_max25_m": 3.25, "window_stations": 6, "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 Muraz", "county": "Haute-Savoie", "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)" } }