{ "ocl_version": "0.1.0", "name": "Mont\u00e9e du Larys \u00e0 L'Enclos", "slug": "montee-du-larys-a-l-enclos", "confidence": "B", "reported_claims": [], "ladder": [ { "window_m": 2.0, "max_gradient_pct": 38.01453991440269, "diagnostic": true, "flags": [ "texture_excluded", "canopy_or_structure" ], "start_distance_m": 1873.0, "end_distance_m": 1875.0, "start_elevation_m": 452.14721446483003, "end_elevation_m": 452.9075052631181, "min_gradient_pct": -64.52212956133963, "suppressed_max_gradient_pct": 50.86549880727205, "suppressed_location_m": [ 668.0, 670.0 ] }, { "window_m": 3.0, "max_gradient_pct": 35.15928278525848, "diagnostic": true, "flags": [ "texture_excluded", "texture_excluded" ], "start_distance_m": 1477.0, "end_distance_m": 1480.0, "start_elevation_m": 440.0225258202786, "end_elevation_m": 441.07730430383634, "min_gradient_pct": -54.71511172989759, "suppressed_max_gradient_pct": 44.81100284291225, "suppressed_location_m": [ 517.0, 520.0 ] }, { "window_m": 5.0, "max_gradient_pct": 28.341539311155657, "diagnostic": false, "flags": [ "texture_excluded", "texture_excluded", "canopy_or_structure" ], "start_distance_m": 1873.0, "end_distance_m": 1878.0, "start_elevation_m": 452.14721446483003, "end_elevation_m": 453.5642914303878, "min_gradient_pct": -35.35162809539656, "suppressed_max_gradient_pct": 34.97826262002491, "suppressed_location_m": [ 516.0, 521.0 ] }, { "window_m": 10.0, "max_gradient_pct": 24.001129306570874, "diagnostic": false, "flags": [ "canopy_or_structure" ], "start_distance_m": 1873.0, "end_distance_m": 1883.0, "start_elevation_m": 452.14721446483003, "end_elevation_m": 454.5473273954871, "min_gradient_pct": -15.257812510057533 }, { "window_m": 20.0, "max_gradient_pct": 22.49690586248761, "diagnostic": false, "flags": [ "canopy_or_structure" ], "start_distance_m": 1873.0, "end_distance_m": 1893.0, "start_elevation_m": 452.14721446483003, "end_elevation_m": 456.64659563732755, "min_gradient_pct": -8.688099606195863 }, { "window_m": 25.0, "max_gradient_pct": 21.680602346656315, "diagnostic": false, "flags": [ "canopy_or_structure" ], "start_distance_m": 1873.0, "end_distance_m": 1898.0, "start_elevation_m": 452.14721446483003, "end_elevation_m": 457.5673650514941, "min_gradient_pct": -7.139764820842629 }, { "window_m": 50.0, "max_gradient_pct": 18.80253272662037, "diagnostic": false, "flags": [ "canopy_or_structure" ], "start_distance_m": 1872.0, "end_distance_m": 1922.0, "start_elevation_m": 452.015919629659, "end_elevation_m": 461.41718599296917, "min_gradient_pct": -3.534219823145577 }, { "window_m": 100.0, "max_gradient_pct": 16.528778061937146, "diagnostic": false, "flags": [ "canopy_or_structure" ], "start_distance_m": 1859.0, "end_distance_m": 1959.0, "start_elevation_m": 450.18399263307003, "end_elevation_m": 466.7127706950072, "min_gradient_pct": -1.706658081051387 } ], "shape": { "ascent_concentration": 0.384, "concentration_window_frac": 0.25, "longest_pitch_10pct_m": 151.0, "shape_class": "sustained" }, "length_m": 2289.3024641303264, "start_elevation_m": 372.4378314697277, "end_elevation_m": 491.3697735292973, "endpoint_gain_m": 118.93194205956956, "overall_gradient_pct": 5.195117024641395, "accumulated_ascent_m": 133.75098337382747, "window_maxima": { "max_5m": { "gradient_pct": 28.341539311155657, "start_distance_m": 1873.0, "end_distance_m": 1878.0, "midpoint_distance_m": 1875.5, "start_elevation_m": 452.14721446483003, "end_elevation_m": 453.5642914303878, "start_xy": [ 874778.4862679498, 6456381.468621808 ], "end_xy": [ 874782.1320483958, 6456384.890358931 ] }, "max_10m": { "gradient_pct": 24.001129306570874, "start_distance_m": 1873.0, "end_distance_m": 1883.0, "midpoint_distance_m": 1878.0, "start_elevation_m": 452.14721446483003, "end_elevation_m": 454.5473273954871, "start_xy": [ 874778.4862679498, 6456381.468621808 ], "end_xy": [ 874785.7778288419, 6456388.312096054 ] }, "max_20m": { "gradient_pct": 22.49690586248761, "start_distance_m": 1873.0, "end_distance_m": 1893.0, "midpoint_distance_m": 1883.0, "start_elevation_m": 452.14721446483003, "end_elevation_m": 456.64659563732755, "start_xy": [ 874778.4862679498, 6456381.468621808 ], "end_xy": [ 874793.0693897342, 6456395.1555703 ] }, "max_25m": { "gradient_pct": 21.680602346656315, "start_distance_m": 1873.0, "end_distance_m": 1898.0, "midpoint_distance_m": 1885.5, "start_elevation_m": 452.14721446483003, "end_elevation_m": 457.5673650514941, "start_xy": [ 874778.4862679498, 6456381.468621808 ], "end_xy": [ 874796.7151701803, 6456398.577307423 ] }, "max_50m": { "gradient_pct": 18.80253272662037, "start_distance_m": 1872.0, "end_distance_m": 1922.0, "midpoint_distance_m": 1897.0, "start_elevation_m": 452.015919629659, "end_elevation_m": 461.41718599296917, "start_xy": [ 874777.7571118606, 6456380.784274383 ], "end_xy": [ 874814.5481032619, 6456414.630253199 ] }, "max_100m": { "gradient_pct": 16.528778061937146, "start_distance_m": 1859.0, "end_distance_m": 1959.0, "midpoint_distance_m": 1909.0, "start_elevation_m": 450.18399263307003, "end_elevation_m": 466.7127706950072, "start_xy": [ 874768.2780827007, 6456371.887757864 ], "end_xy": [ 874840.1395781314, 6456441.303139954 ] } }, "window_minima": { "min_5m": { "gradient_pct": -35.35162809539656, "start_distance_m": 1465.0, "end_distance_m": 1470.0, "midpoint_distance_m": 1467.5, "start_elevation_m": 441.39048420089006, "end_elevation_m": 439.62290279612023, "start_xy": [ 874693.1005895189, 6456003.110702727 ], "end_xy": [ 874692.7649095707, 6456008.099421899 ] }, "min_10m": { "gradient_pct": -15.257812510057533, "start_distance_m": 1465.0, "end_distance_m": 1475.0, "midpoint_distance_m": 1470.0, "start_elevation_m": 441.39048420089006, "end_elevation_m": 439.8647029498843, "start_xy": [ 874693.1005895189, 6456003.110702727 ], "end_xy": [ 874692.4297529225, 6456013.088176129 ] }, "min_20m": { "gradient_pct": -8.688099606195863, "start_distance_m": 1494.0, "end_distance_m": 1514.0, "midpoint_distance_m": 1504.0, "start_elevation_m": 441.45786347043463, "end_elevation_m": 439.72024354919546, "start_xy": [ 874692.3360058344, 6456032.077639641 ], "end_xy": [ 874692.5890271829, 6456052.076039082 ] }, "min_25m": { "gradient_pct": -7.139764820842629, "start_distance_m": 1489.0, "end_distance_m": 1514.0, "midpoint_distance_m": 1501.5, "start_elevation_m": 441.5051847544061, "end_elevation_m": 439.72024354919546, "start_xy": [ 874692.2727504972, 6456027.078039781 ], "end_xy": [ 874692.5890271829, 6456052.076039082 ] }, "min_50m": { "gradient_pct": -3.534219823145577, "start_distance_m": 1488.0, "end_distance_m": 1538.0, "midpoint_distance_m": 1513.0, "start_elevation_m": 441.5335901566134, "end_elevation_m": 439.7664802450406, "start_xy": [ 874692.2600994298, 6456026.078119809 ], "end_xy": [ 874699.6216449124, 6456074.644425369 ] }, "min_100m": { "gradient_pct": -1.706658081051387, "start_distance_m": 1602.0, "end_distance_m": 1702.0, "midpoint_distance_m": 1652.0, "start_elevation_m": 441.4910081498085, "end_elevation_m": 439.78435006875713, "start_xy": [ 874724.9010332609, 6456133.440280025 ], "end_xy": [ 874734.8237196587, 6456230.844154737 ] } }, "diagnostic_window_maxima": { "max_2m": { "gradient_pct": 38.01453991440269, "start_distance_m": 1873.0, "end_distance_m": 1875.0, "midpoint_distance_m": 1874.0, "start_elevation_m": 452.14721446483003, "end_elevation_m": 452.9075052631181, "start_xy": [ 874778.4862679498, 6456381.468621808 ], "end_xy": [ 874779.9445801282, 6456382.837316657 ] }, "max_3m": { "gradient_pct": 35.15928278525848, "start_distance_m": 1477.0, "end_distance_m": 1480.0, "midpoint_distance_m": 1478.5, "start_elevation_m": 440.0225258202786, "end_elevation_m": 441.07730430383634, "start_xy": [ 874692.2966371733, 6456015.083741263 ], "end_xy": [ 874692.1588908904, 6456018.078760033 ] } }, "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": 0.003, "windows_resited": [], "windows_unresolved": [] }, "placement_suppression": { "masked_fraction": 0.014, "windows_resited": [], "windows_unresolved": [] }, "texture_suppression": { "masked_fraction": 0.022, "windows_resited": [ 2.0, 3.0, 5.0 ], "windows_unresolved": [] }, "texture_windows": { "rounds": 2, "windows_masked": [ { "window_m": 5.0, "start_m": 516.0, "end_m": 521.0, "raw_pct": 34.98, "reason": "short-step" }, { "window_m": 5.0, "start_m": 665.0, "end_m": 670.0, "raw_pct": 30.25, "reason": "short-step" } ], "advisory": [], "unresolved": [] }, "overhead_obstruction": { "obstruction_threshold_m": 2.0, "obstructed_fraction": 0.191, "obstruction_max_height_m": 19.77, "flagged_windows_m": [ 2, 5, 10, 20, 25, 50, 100 ] }, "excluded_ranges_m": [ [ 514.0, 523.0 ], [ 663.0, 672.0 ], [ 1440.0, 1470.0 ] ], "review": [], "extent": [] }, "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_E874-N6454_0m5.tif", "data/cache/fr/ign-lidarhd_dtm_E874-N6455_0m5.tif", "data/cache/fr/ign-lidarhd_dtm_E874-N6456_0m5.tif", "data/cache/fr/ign-lidarhd_dtm_E875-N6454_0m5.tif", "data/cache/fr/ign-lidarhd_dtm_E875-N6455_0m5.tif", "data/cache/fr/ign-lidarhd_dtm_E875-N6456_0m5.tif" ], "calculated_at": "2026-09-17T03:07:15+00:00", "road_source": "OpenStreetMap (local PBF extract)", "road_attribution": "\u00a9 OpenStreetMap contributors, ODbL", "osm_pbf_path": "data/cache/pbf/block-batch-fr-alps1.osm.pbf", "osm_snapshot": "", "run_id": "fr-alps1", "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": [ "E874-N6454", "E874-N6455", "E874-N6456", "E875-N6454", "E875-N6455", "E875-N6456" ], "elevation_blocks": [ "21LHD6OM@2024-10-24" ], "ign_dalles": [ "LHD_FXX_0874_6455_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0874_6456_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0874_6457_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0875_6455_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0875_6456_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0875_6457_MNT_O_0M50_LAMB93_IGN69" ], "ign_missions": [ "21LHD6OM" ], "ign_editions": [ "2024-10-24" ], "ign_dsm_edition": { "LHD_FXX_0874_6455_MNT_O_0M50_LAMB93_IGN69": "2024-10-24", "LHD_FXX_0874_6456_MNT_O_0M50_LAMB93_IGN69": "2024-10-24", "LHD_FXX_0874_6457_MNT_O_0M50_LAMB93_IGN69": "2024-10-24", "LHD_FXX_0875_6455_MNT_O_0M50_LAMB93_IGN69": "2024-10-24", "LHD_FXX_0875_6456_MNT_O_0M50_LAMB93_IGN69": "2024-10-24", "LHD_FXX_0875_6457_MNT_O_0M50_LAMB93_IGN69": "2024-10-24" }, "climb_origin": "discovered", "structure_own_ways": "none \u2014 the route carried no way list; own decks unmasked", "carriageway": { "stations": 98, "stations_resolved": 98, "width_median_m": 4.38, "width_p10_m": 2.0, "width_min_m": 1.0, "width_max_m": 12.0, "bounded_share": 0.245, "unbounded_share": 0.755, "confidence_median": 0.0, "width_median_bounded_m": 3.5, "window_m": [ 1873.0, 1898.0 ], "width_at_max25_m": 4.0, "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": 98, "stations_resolved": 98, "width_median_m": 5.75, "width_p10_m": 1.75, "width_min_m": 0.5, "width_max_m": 12.0, "bounded_share": 0.724, "unbounded_share": 0.276, "confidence_median": 1.0, "width_median_bounded_m": 4.0, "window_m": [ 1873.0, 1898.0 ], "width_at_max25_m": 3.0, "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": "Saint-Antoine l'Abbaye", "county": "Is\u00e8re", "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)" } }