{ "ocl_version": "0.1.0", "name": "Col d'Allos from Uvernet", "slug": "col-d-allos-from-uvernet", "confidence": "B", "reported_claims": [], "ladder": [ { "window_m": 2.0, "max_gradient_pct": 42.97388200612886, "diagnostic": true, "flags": [ "structure_excluded" ], "start_distance_m": 3559.0, "end_distance_m": 3561.0, "start_elevation_m": 1521.4734827466395, "end_elevation_m": 1522.3329603867621, "min_gradient_pct": -1395.1905561816602, "suppressed_max_gradient_pct": 1636.7549187212035, "suppressed_location_m": [ 1404.0, 1406.0 ] }, { "window_m": 3.0, "max_gradient_pct": 34.74698604184899, "diagnostic": true, "flags": [ "structure_excluded" ], "start_distance_m": 302.0, "end_distance_m": 305.0, "start_elevation_m": 1288.7860244054496, "end_elevation_m": 1289.828433986705, "min_gradient_pct": -956.6144105360612, "suppressed_max_gradient_pct": 1102.7942541456014, "suppressed_location_m": [ 1403.0, 1406.0 ] }, { "window_m": 5.0, "max_gradient_pct": 27.600026241580053, "diagnostic": false, "flags": [ "structure_excluded" ], "start_distance_m": 302.0, "end_distance_m": 307.0, "start_elevation_m": 1288.7860244054496, "end_elevation_m": 1290.1660257175286, "min_gradient_pct": -611.270876968988, "suppressed_max_gradient_pct": 689.1606375244328, "suppressed_location_m": [ 1402.0, 1407.0 ] }, { "window_m": 10.0, "max_gradient_pct": 20.687773237789315, "diagnostic": false, "flags": [ "structure_excluded" ], "start_distance_m": 8488.0, "end_distance_m": 8498.0, "start_elevation_m": 1778.6459629998308, "end_elevation_m": 1780.7147403236097, "min_gradient_pct": -337.0247122577871, "suppressed_max_gradient_pct": 313.83133099231145, "suppressed_location_m": [ 1398.0, 1408.0 ] }, { "window_m": 20.0, "max_gradient_pct": 15.809902494969492, "diagnostic": false, "flags": [ "structure_excluded" ], "start_distance_m": 8482.0, "end_distance_m": 8502.0, "start_elevation_m": 1778.0661132120115, "end_elevation_m": 1781.2280937110054, "min_gradient_pct": -135.56662255021251, "suppressed_max_gradient_pct": 106.61059681863662, "suppressed_location_m": [ 1388.0, 1408.0 ] }, { "window_m": 25.0, "max_gradient_pct": 14.33209666336279, "diagnostic": false, "flags": [ "structure_excluded" ], "start_distance_m": 8478.0, "end_distance_m": 8503.0, "start_elevation_m": 1777.7292808730353, "end_elevation_m": 1781.312305038876, "min_gradient_pct": -127.50890952784266, "suppressed_max_gradient_pct": 101.16710223535483, "suppressed_location_m": [ 1412.0, 1437.0 ] }, { "window_m": 50.0, "max_gradient_pct": 11.084786731398253, "diagnostic": false, "flags": [ "structure_excluded", "canopy_or_structure" ], "start_distance_m": 8453.0, "end_distance_m": 8503.0, "start_elevation_m": 1775.769911673177, "end_elevation_m": 1781.312305038876, "min_gradient_pct": -61.73673479449235, "suppressed_max_gradient_pct": 73.61125934811935, "suppressed_location_m": [ 1402.0, 1452.0 ] }, { "window_m": 100.0, "max_gradient_pct": 9.104865480080207, "diagnostic": false, "flags": [ "structure_excluded", "canopy_or_structure" ], "start_distance_m": 8207.0, "end_distance_m": 8307.0, "start_elevation_m": 1756.9714818042762, "end_elevation_m": 1766.0763472843564, "min_gradient_pct": -26.567070869071813, "suppressed_max_gradient_pct": 40.85968476305948, "suppressed_location_m": [ 1402.0, 1502.0 ] } ], "shape": { "ascent_concentration": 0.359, "concentration_window_frac": 0.25, "longest_pitch_10pct_m": 40.0, "shape_class": "sustained" }, "length_m": 15259.049550948863, "start_elevation_m": 1269.0646405273133, "end_elevation_m": 2243.8866483906268, "endpoint_gain_m": 974.8220078633135, "overall_gradient_pct": 6.388484450544926, "accumulated_ascent_m": 1265.464790502375, "window_maxima": { "max_5m": { "gradient_pct": 27.600026241580053, "start_distance_m": 302.0, "end_distance_m": 307.0, "midpoint_distance_m": 304.5, "start_elevation_m": 1288.7860244054496, "end_elevation_m": 1290.1660257175286, "start_xy": [ 988531.5307327717, 6368760.306622054 ], "end_xy": [ 988527.7220425503, 6368757.077946266 ] }, "max_10m": { "gradient_pct": 20.687773237789315, "start_distance_m": 8488.0, "end_distance_m": 8498.0, "midpoint_distance_m": 8493.0, "start_elevation_m": 1778.6459629998308, "end_elevation_m": 1780.7147403236097, "start_xy": [ 986225.129605904, 6365361.281893118 ], "end_xy": [ 986232.3536701372, 6365354.964748699 ] }, "max_20m": { "gradient_pct": 15.809902494969492, "start_distance_m": 8482.0, "end_distance_m": 8502.0, "midpoint_distance_m": 8492.0, "start_elevation_m": 1778.0661132120115, "end_elevation_m": 1781.2280937110054, "start_xy": [ 986224.1494792204, 6365367.094050571 ], "end_xy": [ 986236.2474277333, 6365354.0752487965 ] }, "max_25m": { "gradient_pct": 14.33209666336279, "start_distance_m": 8478.0, "end_distance_m": 8503.0, "midpoint_distance_m": 8490.5, "start_elevation_m": 1777.7292808730353, "end_elevation_m": 1781.312305038876, "start_xy": [ 986224.9947830507, 6365370.942397361 ], "end_xy": [ 986237.2257389735, 6365353.868108464 ] }, "max_50m": { "gradient_pct": 11.084786731398253, "start_distance_m": 8453.0, "end_distance_m": 8503.0, "midpoint_distance_m": 8478.0, "start_elevation_m": 1775.769911673177, "end_elevation_m": 1781.312305038876, "start_xy": [ 986245.2155804163, 6365383.228276363 ], "end_xy": [ 986237.2257389735, 6365353.868108464 ] }, "max_100m": { "gradient_pct": 9.104865480080207, "start_distance_m": 8207.0, "end_distance_m": 8307.0, "midpoint_distance_m": 8257.0, "start_elevation_m": 1756.9714818042762, "end_elevation_m": 1766.0763472843564, "start_xy": [ 986419.9513437628, 6365409.92783097 ], "end_xy": [ 986389.164399918, 6365383.609015866 ] } }, "window_minima": { "min_5m": { "gradient_pct": -611.270876968988, "start_distance_m": 1393.0, "end_distance_m": 1398.0, "midpoint_distance_m": 1395.5, "start_elevation_m": 1364.3281254899834, "end_elevation_m": 1333.764581641534, "start_xy": [ 987994.5168246608, 6367996.067440672 ], "end_xy": [ 987995.3378734126, 6367991.1353134485 ] }, "min_10m": { "gradient_pct": -337.0247122577871, "start_distance_m": 1392.0, "end_distance_m": 1402.0, "midpoint_distance_m": 1397.0, "start_elevation_m": 1364.3535318265695, "end_elevation_m": 1330.6510606007907, "start_xy": [ 987994.3526149105, 6367997.053866116 ], "end_xy": [ 987995.9947124141, 6367987.18961167 ] }, "min_20m": { "gradient_pct": -135.56662255021251, "start_distance_m": 1375.0, "end_distance_m": 1395.0, "midpoint_distance_m": 1385.0, "start_elevation_m": 1363.5376388763927, "end_elevation_m": 1336.4243143663502, "start_xy": [ 987991.5610491541, 6368013.823098675 ], "end_xy": [ 987994.8452441616, 6367994.094589782 ] }, "min_25m": { "gradient_pct": -127.50890952784266, "start_distance_m": 1375.0, "end_distance_m": 1400.0, "midpoint_distance_m": 1387.5, "start_elevation_m": 1363.5376388763927, "end_elevation_m": 1331.660411494432, "start_xy": [ 987991.5610491541, 6368013.823098675 ], "end_xy": [ 987995.6662929134, 6367989.162462559 ] }, "min_50m": { "gradient_pct": -61.73673479449235, "start_distance_m": 1352.0, "end_distance_m": 1402.0, "midpoint_distance_m": 1377.0, "start_elevation_m": 1361.519427998037, "end_elevation_m": 1330.6510606007907, "start_xy": [ 987989.2192131698, 6368036.698063693 ], "end_xy": [ 987995.9947124141, 6367987.18961167 ] }, "min_100m": { "gradient_pct": -26.567070869071813, "start_distance_m": 1302.0, "end_distance_m": 1402.0, "midpoint_distance_m": 1352.0, "start_elevation_m": 1357.2181314698626, "end_elevation_m": 1330.6510606007907, "start_xy": [ 988017.715241314, 6368070.166212227 ], "end_xy": [ 987995.9947124141, 6367987.18961167 ] } }, "diagnostic_window_maxima": { "max_2m": { "gradient_pct": 42.97388200612886, "start_distance_m": 3559.0, "end_distance_m": 3561.0, "midpoint_distance_m": 3560.0, "start_elevation_m": 1521.4734827466395, "end_elevation_m": 1522.3329603867621, "start_xy": [ 987860.2320506786, 6366101.327609758 ], "end_xy": [ 987860.4793203233, 6366099.34295419 ] }, "max_3m": { "gradient_pct": 34.74698604184899, "start_distance_m": 302.0, "end_distance_m": 305.0, "midpoint_distance_m": 303.5, "start_elevation_m": 1288.7860244054496, "end_elevation_m": 1289.828433986705, "start_xy": [ 988531.5307327717, 6368760.306622054 ], "end_xy": [ 988529.3141472971, 6368758.288401749 ] } }, "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": 0.047, "windows_resited": [ 2.0, 3.0, 5.0, 10.0, 20.0, 25.0, 50.0, 100.0 ], "windows_unresolved": [] }, "no_bench_suppression": { "masked_fraction": 0.049, "windows_resited": [], "windows_unresolved": [] }, "overhead_obstruction": { "obstruction_threshold_m": 2.0, "obstructed_fraction": 0.095, "obstruction_max_height_m": 34.21, "flagged_windows_m": [ 50, 100 ] }, "excluded_ranges_m": [ [ 43.0, 58.0 ], [ 331.0, 377.0 ], [ 401.0, 413.0 ], [ 510.0, 527.0 ], [ 1284.0, 1356.0 ], [ 1371.0, 1441.0 ], [ 2321.0, 2328.0 ], [ 2441.0, 2464.0 ], [ 2575.0, 2600.0 ], [ 2959.0, 2971.0 ], [ 2990.0, 2998.0 ], [ 3566.0, 3571.0 ], [ 3830.0, 3836.0 ], [ 3838.0, 3872.0 ], [ 3965.0, 3973.0 ], [ 3975.0, 3984.0 ], [ 4010.0, 4015.0 ], [ 4081.0, 4100.0 ], [ 4172.0, 4192.0 ], [ 4276.0, 4285.0 ], [ 4295.0, 4303.0 ], [ 4306.0, 4311.0 ], [ 4332.0, 4344.0 ], [ 4377.0, 4388.0 ], [ 4489.0, 4494.0 ], [ 4509.0, 4518.0 ], [ 4573.0, 4589.0 ], [ 4642.0, 4663.0 ], [ 4741.0, 4756.0 ], [ 5836.0, 5850.0 ], [ 6634.0, 6652.0 ], [ 6982.0, 6987.0 ], [ 7018.0, 7023.0 ], [ 7053.0, 7058.0 ], [ 7224.0, 7246.0 ], [ 7254.0, 7259.0 ], [ 7593.0, 7614.0 ], [ 8040.0, 8070.0 ], [ 8131.0, 8137.0 ], [ 8669.0, 8676.0 ], [ 11399.0, 11407.0 ], [ 11652.0, 11658.0 ], [ 11676.0, 11684.0 ], [ 12414.0, 12428.0 ] ], "review": [], "extent": [ "may_start_earlier" ] }, "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_E985-N6365_0m5.tif", "data/cache/fr/ign-lidarhd_dtm_E985-N6366_0m5.tif", "data/cache/fr/ign-lidarhd_dtm_E986-N6361_0m5.tif", "data/cache/fr/ign-lidarhd_dtm_E986-N6362_0m5.tif", "data/cache/fr/ign-lidarhd_dtm_E986-N6363_0m5.tif", "data/cache/fr/ign-lidarhd_dtm_E986-N6364_0m5.tif", "data/cache/fr/ign-lidarhd_dtm_E986-N6365_0m5.tif", "data/cache/fr/ign-lidarhd_dtm_E986-N6366_0m5.tif", "data/cache/fr/ign-lidarhd_dtm_E987-N6361_0m5.tif", "data/cache/fr/ign-lidarhd_dtm_E987-N6362_0m5.tif", "data/cache/fr/ign-lidarhd_dtm_E987-N6363_0m5.tif", "data/cache/fr/ign-lidarhd_dtm_E987-N6364_0m5.tif", "data/cache/fr/ign-lidarhd_dtm_E987-N6365_0m5.tif", "data/cache/fr/ign-lidarhd_dtm_E987-N6366_0m5.tif", "data/cache/fr/ign-lidarhd_dtm_E987-N6367_0m5.tif", "data/cache/fr/ign-lidarhd_dtm_E987-N6368_0m5.tif", "data/cache/fr/ign-lidarhd_dtm_E988-N6365_0m5.tif", "data/cache/fr/ign-lidarhd_dtm_E988-N6366_0m5.tif", "data/cache/fr/ign-lidarhd_dtm_E988-N6367_0m5.tif", "data/cache/fr/ign-lidarhd_dtm_E988-N6368_0m5.tif", "data/cache/fr/ign-lidarhd_dtm_E988-N6369_0m5.tif" ], "calculated_at": "2026-09-17T01:59:10+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": [ "E985-N6365", "E985-N6366", "E986-N6361", "E986-N6362", "E986-N6363", "E986-N6364", "E986-N6365", "E986-N6366", "E987-N6361", "E987-N6362", "E987-N6363", "E987-N6364", "E987-N6365", "E987-N6366", "E987-N6367", "E987-N6368", "E988-N6365", "E988-N6366", "E988-N6367", "E988-N6368", "E988-N6369" ], "elevation_blocks": [ "21LHD8QO@2025-04-02", "21LHD8RO@2025-04-02" ], "ign_dalles": [ "LHD_FXX_0985_6366_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0985_6367_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0986_6362_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0986_6363_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0986_6364_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0986_6365_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0986_6366_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0986_6367_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0987_6362_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0987_6363_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0987_6364_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0987_6365_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0987_6366_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0987_6367_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0987_6368_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0987_6369_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0988_6366_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0988_6367_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0988_6368_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0988_6369_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0988_6370_MNT_O_0M50_LAMB93_IGN69" ], "ign_missions": [ "21LHD8QO", "21LHD8RO" ], "ign_editions": [ "2025-04-02" ], "ign_dsm_edition": { "LHD_FXX_0985_6366_MNT_O_0M50_LAMB93_IGN69": "2025-04-02", "LHD_FXX_0985_6367_MNT_O_0M50_LAMB93_IGN69": "2025-04-02", "LHD_FXX_0986_6362_MNT_O_0M50_LAMB93_IGN69": "2025-04-02", "LHD_FXX_0986_6363_MNT_O_0M50_LAMB93_IGN69": "2025-04-02", "LHD_FXX_0986_6364_MNT_O_0M50_LAMB93_IGN69": "2025-04-02", "LHD_FXX_0986_6365_MNT_O_0M50_LAMB93_IGN69": "2025-04-02", "LHD_FXX_0986_6366_MNT_O_0M50_LAMB93_IGN69": "2025-04-02", "LHD_FXX_0986_6367_MNT_O_0M50_LAMB93_IGN69": "2025-04-02", "LHD_FXX_0987_6362_MNT_O_0M50_LAMB93_IGN69": "2025-04-02", "LHD_FXX_0987_6363_MNT_O_0M50_LAMB93_IGN69": "2025-04-02", "LHD_FXX_0987_6364_MNT_O_0M50_LAMB93_IGN69": "2025-04-02", "LHD_FXX_0987_6365_MNT_O_0M50_LAMB93_IGN69": "2025-04-02", "LHD_FXX_0987_6366_MNT_O_0M50_LAMB93_IGN69": "2025-04-02", "LHD_FXX_0987_6367_MNT_O_0M50_LAMB93_IGN69": "2025-04-02", "LHD_FXX_0987_6368_MNT_O_0M50_LAMB93_IGN69": "2025-04-02", "LHD_FXX_0987_6369_MNT_O_0M50_LAMB93_IGN69": "2025-04-02", "LHD_FXX_0988_6366_MNT_O_0M50_LAMB93_IGN69": "2025-04-02", "LHD_FXX_0988_6367_MNT_O_0M50_LAMB93_IGN69": "2025-04-02", "LHD_FXX_0988_6368_MNT_O_0M50_LAMB93_IGN69": "2025-04-02", "LHD_FXX_0988_6369_MNT_O_0M50_LAMB93_IGN69": "2025-04-02", "LHD_FXX_0988_6370_MNT_O_0M50_LAMB93_IGN69": "2025-04-02" }, "climb_origin": "named-pass", "structure_own_ways": "none \u2014 the route carried no way list; own decks unmasked", "carriageway": { "stations": 617, "stations_resolved": 617, "width_median_m": 5.25, "width_p10_m": 2.5, "width_min_m": 0.0, "width_max_m": 12.0, "bounded_share": 0.489, "unbounded_share": 0.511, "confidence_median": 0.0, "width_median_bounded_m": 5.25, "window_m": [ 8478.0, 8503.0 ], "width_at_max25_m": 6.0, "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": 617, "stations_resolved": 617, "width_median_m": 6.25, "width_p10_m": 1.25, "width_min_m": 0.5, "width_max_m": 12.0, "bounded_share": 0.883, "unbounded_share": 0.117, "confidence_median": 1.0, "width_median_bounded_m": 6.0, "window_m": [ 8478.0, 8503.0 ], "width_at_max25_m": 5.5, "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": "Uvernet-Fours", "county": "Alpes-de-Haute-Provence", "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)" } }