{ "ocl_version": "0.1.0", "name": "Col de Moivrons from Sivry", "slug": "col-de-moivrons-from-sivry", "confidence": "A", "reported_claims": [], "ladder": [ { "window_m": 2.0, "max_gradient_pct": 10.80211376767295, "diagnostic": true, "flags": [], "start_distance_m": 1819.0, "end_distance_m": 1821.0, "start_elevation_m": 338.38742490487624, "end_elevation_m": 338.6034671802297, "min_gradient_pct": -1.705181436986436 }, { "window_m": 3.0, "max_gradient_pct": 10.525469798881204, "diagnostic": true, "flags": [], "start_distance_m": 1820.0, "end_distance_m": 1823.0, "start_elevation_m": 338.49172691230314, "end_elevation_m": 338.8074910062696, "min_gradient_pct": -1.526205541034642 }, { "window_m": 5.0, "max_gradient_pct": 10.104366015663118, "diagnostic": false, "flags": [], "start_distance_m": 1819.0, "end_distance_m": 1824.0, "start_elevation_m": 338.38742490487624, "end_elevation_m": 338.8926432056594, "min_gradient_pct": -1.1460057209387742 }, { "window_m": 10.0, "max_gradient_pct": 9.708316118330913, "diagnostic": false, "flags": [], "start_distance_m": 1819.0, "end_distance_m": 1829.0, "start_elevation_m": 338.38742490487624, "end_elevation_m": 339.35825651670933, "min_gradient_pct": 0.1913065078673526 }, { "window_m": 20.0, "max_gradient_pct": 9.24720390705744, "diagnostic": false, "flags": [], "start_distance_m": 1810.0, "end_distance_m": 1830.0, "start_elevation_m": 337.5885928262515, "end_elevation_m": 339.438033607663, "min_gradient_pct": 1.3323060868083303 }, { "window_m": 25.0, "max_gradient_pct": 9.060930500797895, "diagnostic": false, "flags": [], "start_distance_m": 1809.0, "end_distance_m": 1834.0, "start_elevation_m": 337.51791730984576, "end_elevation_m": 339.78314993504523, "min_gradient_pct": 1.438594030868444 }, { "window_m": 50.0, "max_gradient_pct": 8.589590424395283, "diagnostic": false, "flags": [], "start_distance_m": 1793.0, "end_distance_m": 1843.0, "start_elevation_m": 336.2194414834895, "end_elevation_m": 340.51423669568715, "min_gradient_pct": 1.8010755402503946 }, { "window_m": 100.0, "max_gradient_pct": 8.276177072924725, "diagnostic": false, "flags": [], "start_distance_m": 1748.0, "end_distance_m": 1848.0, "start_elevation_m": 332.64607148135735, "end_elevation_m": 340.9222485542821, "min_gradient_pct": 2.110616542687012 } ], "shape": { "ascent_concentration": 0.393, "concentration_window_frac": 0.25, "longest_pitch_10pct_m": 0.0, "shape_class": "sustained" }, "length_m": 2091.1391206927187, "start_elevation_m": 254.6764801606464, "end_elevation_m": 358.17494163893707, "endpoint_gain_m": 103.49846147829066, "overall_gradient_pct": 4.9493819160154855, "accumulated_ascent_m": 103.59434400170721, "window_maxima": { "max_5m": { "gradient_pct": 10.104366015663118, "start_distance_m": 1819.0, "end_distance_m": 1824.0, "midpoint_distance_m": 1821.5, "start_elevation_m": 338.38742490487624, "end_elevation_m": 338.8926432056594, "start_xy": [ 937068.3521648397, 6863359.808712167 ], "end_xy": [ 937073.1685649875, 6863358.466218362 ] }, "max_10m": { "gradient_pct": 9.708316118330913, "start_distance_m": 1819.0, "end_distance_m": 1829.0, "midpoint_distance_m": 1824.0, "start_elevation_m": 338.38742490487624, "end_elevation_m": 339.35825651670933, "start_xy": [ 937068.3521648397, 6863359.808712167 ], "end_xy": [ 937078.1354674227, 6863357.93835447 ] }, "max_20m": { "gradient_pct": 9.24720390705744, "start_distance_m": 1810.0, "end_distance_m": 1830.0, "midpoint_distance_m": 1820.0, "start_elevation_m": 337.5885928262515, "end_elevation_m": 339.438033607663, "start_xy": [ 937059.6826445736, 6863362.225201015 ], "end_xy": [ 937079.1310217832, 6863357.844165749 ] }, "max_25m": { "gradient_pct": 9.060930500797895, "start_distance_m": 1809.0, "end_distance_m": 1834.0, "midpoint_distance_m": 1821.5, "start_elevation_m": 337.51791730984576, "end_elevation_m": 339.78314993504523, "start_xy": [ 937058.7193645441, 6863362.493699776 ], "end_xy": [ 937083.1132392255, 6863357.467410864 ] }, "max_50m": { "gradient_pct": 8.589590424395283, "start_distance_m": 1793.0, "end_distance_m": 1843.0, "midpoint_distance_m": 1818.0, "start_elevation_m": 336.2194414834895, "end_elevation_m": 340.51423669568715, "start_xy": [ 937043.3068840711, 6863366.789679952 ], "end_xy": [ 937092.0648611191, 6863356.9832687965 ] }, "max_100m": { "gradient_pct": 8.276177072924725, "start_distance_m": 1748.0, "end_distance_m": 1848.0, "midpoint_distance_m": 1798.0, "start_elevation_m": 332.64607148135735, "end_elevation_m": 340.9222485542821, "start_xy": [ 936999.959282741, 6863378.872124197 ], "end_xy": [ 937097.0156959159, 6863357.682722023 ] } }, "window_minima": { "min_5m": { "gradient_pct": -1.1460057209387742, "start_distance_m": 2086.0, "end_distance_m": 2091.0, "midpoint_distance_m": 2088.5, "start_elevation_m": 358.22946909963923, "end_elevation_m": 358.1721688135923, "start_xy": [ 937293.2413651685, 6863457.244490041 ], "end_xy": [ 937298.0959260261, 6863456.04731049 ] }, "min_10m": { "gradient_pct": 0.1913065078673526, "start_distance_m": 2081.0, "end_distance_m": 2091.0, "midpoint_distance_m": 2086.0, "start_elevation_m": 358.15303816280556, "end_elevation_m": 358.1721688135923, "start_xy": [ 937288.3868043107, 6863458.441669594 ], "end_xy": [ 937298.0959260261, 6863456.04731049 ] }, "min_20m": { "gradient_pct": 1.3323060868083303, "start_distance_m": 962.0, "end_distance_m": 982.0, "midpoint_distance_m": 972.0, "start_elevation_m": 289.2080928899054, "end_elevation_m": 289.47455410726707, "start_xy": [ 936269.434641315, 6863637.708788835 ], "end_xy": [ 936289.2876687371, 6863640.128975228 ] }, "min_25m": { "gradient_pct": 1.438594030868444, "start_distance_m": 958.0, "end_distance_m": 983.0, "midpoint_distance_m": 970.5, "start_elevation_m": 289.1266786800952, "end_elevation_m": 289.4863271878123, "start_xy": [ 936265.4938938173, 6863637.026673165 ], "end_xy": [ 936290.2803201083, 6863640.2499845475 ] }, "min_50m": { "gradient_pct": 1.8010755402503946, "start_distance_m": 942.0, "end_distance_m": 992.0, "midpoint_distance_m": 967.0, "start_elevation_m": 288.78725698087965, "end_elevation_m": 289.68779475100484, "start_xy": [ 936249.7464624802, 6863634.194994107 ], "end_xy": [ 936299.2141824482, 6863641.339068424 ] }, "min_100m": { "gradient_pct": 2.110616542687012, "start_distance_m": 889.0, "end_distance_m": 989.0, "midpoint_distance_m": 939.0, "start_elevation_m": 287.50159340257073, "end_elevation_m": 289.61220994525775, "start_xy": [ 936198.8653692693, 6863619.561877361 ], "end_xy": [ 936296.236228335, 6863640.976040466 ] } }, "diagnostic_window_maxima": { "max_2m": { "gradient_pct": 10.80211376767295, "start_distance_m": 1819.0, "end_distance_m": 1821.0, "midpoint_distance_m": 1820.0, "start_elevation_m": 338.38742490487624, "end_elevation_m": 338.6034671802297, "start_xy": [ 937068.3521648397, 6863359.808712167 ], "end_xy": [ 937070.2787248988, 6863359.2717146445 ] }, "max_3m": { "gradient_pct": 10.525469798881204, "start_distance_m": 1820.0, "end_distance_m": 1823.0, "midpoint_distance_m": 1821.5, "start_elevation_m": 338.49172691230314, "end_elevation_m": 338.8074910062696, "start_xy": [ 937069.3154448692, 6863359.540213405 ], "end_xy": [ 937072.2052849579, 6863358.734717122 ] } }, "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": 0.011, "obstruction_max_height_m": 13.61, "flagged_windows_m": [] }, "review": [], "extent": [] }, "provenance": { "analysis_version": "0.1.0", "run_manifest": { "manifest_version": "1", "code_git_sha": "16bcc1553fe58b280e0c4a66a3ab0980530490a6", "code_git_dirty": "false", "analysis_version": "0.1.0", "analysis_config_digest": "sha256:8c94015b54267da4", "python": "3.14.4", "numpy": "2.5.3", "rasterio": "1.5.1", "pyproj": "3.8.0", "laspy": "2.7.0", "shapely": "2.1.2", "pyosmium": "4.3.1", "libosmium": "2.23.1", "gdal": "3.12.4", "proj": "9.8.1", "run_id": "fr-ne7", "road_pbf": "block-batch-fr-ne7.osm.pbf", "region_key": "france", "crs": "EPSG:2154", "elevation_provider_key": "ign-lidarhd", "tile_index": "wms-grid", "authority": "bdtopo", "registry_pbf": "france-vosges-2026-09-16.osm.pbf", "tile_index_snapshot": "sha256:18f786cf9fa98070" }, "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_E935-N6863_0m5@23LHD1PE-2025-01-29.tif", "data/cache/fr/ign-lidarhd_dtm_E936-N6863_0m5@23LHD1QE-2024-12-16.tif", "data/cache/fr/ign-lidarhd_dtm_E937-N6863_0m5@23LHD1QE-2024-12-16.tif" ], "calculated_at": "2026-09-26T17:41:26+00:00", "road_source": "OpenStreetMap (local PBF extract)", "road_attribution": "\u00a9 OpenStreetMap contributors, ODbL", "osm_pbf_path": "data/cache/pbf/block-batch-fr-ne7.osm.pbf", "osm_snapshot": "", "run_id": "fr-ne7", "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": [ "E935-N6863", "E936-N6863", "E937-N6863" ], "elevation_blocks": [ "23LHD1PE@2025-01-29", "23LHD1QE@2024-12-16" ], "ign_dalles": [ "LHD_FXX_0935_6864_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0936_6864_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0937_6864_MNT_O_0M50_LAMB93_IGN69" ], "ign_missions": [ "23LHD1PE", "23LHD1QE" ], "ign_editions": [ "2024-12-16", "2025-01-29" ], "ign_dsm_edition": { "LHD_FXX_0935_6864_MNT_O_0M50_LAMB93_IGN69": "2025-01-29", "LHD_FXX_0936_6864_MNT_O_0M50_LAMB93_IGN69": "2024-12-16", "LHD_FXX_0937_6864_MNT_O_0M50_LAMB93_IGN69": "2024-12-16" }, "climb_origin": "named-pass", "seam_filled_samples": { "count": 0, "distances_m": [] }, "seam_filled_in_maximum": false, "structure_own_ways": 1, "carriageway": { "stations": 90, "stations_resolved": 90, "width_median_m": 6.0, "width_p10_m": 5.25, "width_min_m": 4.25, "width_max_m": 10.25, "bounded_share": 0.144, "unbounded_share": 0.856, "confidence_median": 0.0, "width_median_bounded_m": 7.25, "window_m": [ 1809.0, 1834.0 ], "width_at_max25_m": 9.0, "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": 90, "stations_resolved": 90, "width_median_m": 9.75, "width_p10_m": 6.25, "width_min_m": 1.25, "width_max_m": 12.0, "bounded_share": 0.433, "unbounded_share": 0.567, "confidence_median": 0.0, "width_median_bounded_m": 8.5, "window_m": [ 1809.0, 1834.0 ], "width_at_max25_m": 8.5, "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": "Sivry", "county": "Meurthe-et-Moselle", "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)" } }