{ "ocl_version": "0.1.0", "name": "Chemin du Surcenord", "slug": "chemin-du-surcenord", "confidence": "B", "reported_claims": [], "ladder": [ { "window_m": 2.0, "max_gradient_pct": 22.609049351416388, "diagnostic": true, "flags": [ "canopy_or_structure" ], "start_distance_m": 220.0, "end_distance_m": 222.0, "start_elevation_m": 696.3036011009643, "end_elevation_m": 696.7557820879927, "min_gradient_pct": 1.5367686253853208 }, { "window_m": 3.0, "max_gradient_pct": 22.793283650878493, "diagnostic": true, "flags": [ "canopy_or_structure" ], "start_distance_m": 220.0, "end_distance_m": 223.0, "start_elevation_m": 696.3036011009643, "end_elevation_m": 696.9873996104907, "min_gradient_pct": 1.992646518139433 }, { "window_m": 5.0, "max_gradient_pct": 22.00397575958732, "diagnostic": false, "flags": [ "canopy_or_structure" ], "start_distance_m": 220.0, "end_distance_m": 225.0, "start_elevation_m": 696.3036011009643, "end_elevation_m": 697.4037998889437, "min_gradient_pct": 2.098220294751627 }, { "window_m": 10.0, "max_gradient_pct": 20.831446812201193, "diagnostic": false, "flags": [ "canopy_or_structure" ], "start_distance_m": 1747.0, "end_distance_m": 1757.0, "start_elevation_m": 866.5537144745832, "end_elevation_m": 868.6368591558033, "min_gradient_pct": 2.1610100392138065 }, { "window_m": 20.0, "max_gradient_pct": 20.578849661421827, "diagnostic": false, "flags": [ "canopy_or_structure" ], "start_distance_m": 1749.0, "end_distance_m": 1769.0, "start_elevation_m": 866.9672039222817, "end_elevation_m": 871.082973854566, "min_gradient_pct": 2.5871978925306394 }, { "window_m": 25.0, "max_gradient_pct": 20.59545802111552, "diagnostic": false, "flags": [ "canopy_or_structure" ], "start_distance_m": 1745.0, "end_distance_m": 1770.0, "start_elevation_m": 866.140282835846, "end_elevation_m": 871.2891473411249, "min_gradient_pct": 2.708921629364795 }, { "window_m": 50.0, "max_gradient_pct": 20.382415604969765, "diagnostic": false, "flags": [ "canopy_or_structure" ], "start_distance_m": 1725.0, "end_distance_m": 1775.0, "start_elevation_m": 862.1117898077104, "end_elevation_m": 872.3029976101952, "min_gradient_pct": 3.3566255273090064 }, { "window_m": 100.0, "max_gradient_pct": 18.82655758413773, "diagnostic": false, "flags": [ "canopy_or_structure" ], "start_distance_m": 1685.0, "end_distance_m": 1785.0, "start_elevation_m": 855.2170006827266, "end_elevation_m": 874.0435582668644, "min_gradient_pct": 4.520563531717471 } ], "shape": { "ascent_concentration": 0.304, "concentration_window_frac": 0.25, "longest_pitch_10pct_m": 427.0, "shape_class": "sustained" }, "length_m": 2572.1957453179402, "start_elevation_m": 664.2798459570294, "end_elevation_m": 966.0837714013815, "endpoint_gain_m": 301.8039254443521, "overall_gradient_pct": 11.733318741146086, "accumulated_ascent_m": 301.8039254443521, "window_maxima": { "max_5m": { "gradient_pct": 22.00397575958732, "start_distance_m": 220.0, "end_distance_m": 225.0, "midpoint_distance_m": 222.5, "start_elevation_m": 696.3036011009643, "end_elevation_m": 697.4037998889437, "start_xy": [ 1008259.4983625548, 6790149.461801819 ], "end_xy": [ 1008254.5045776338, 6790149.711024937 ] }, "max_10m": { "gradient_pct": 20.831446812201193, "start_distance_m": 1747.0, "end_distance_m": 1757.0, "midpoint_distance_m": 1752.0, "start_elevation_m": 866.5537144745832, "end_elevation_m": 868.6368591558033, "start_xy": [ 1007593.7088935652, 6790625.027771551 ], "end_xy": [ 1007583.721523135, 6790624.533840825 ] }, "max_20m": { "gradient_pct": 20.578849661421827, "start_distance_m": 1749.0, "end_distance_m": 1769.0, "midpoint_distance_m": 1759.0, "start_elevation_m": 866.9672039222817, "end_elevation_m": 871.082973854566, "start_xy": [ 1007591.7123073486, 6790624.910966245 ], "end_xy": [ 1007571.8966310167, 6790622.734085756 ] }, "max_25m": { "gradient_pct": 20.59545802111552, "start_distance_m": 1745.0, "end_distance_m": 1770.0, "midpoint_distance_m": 1757.5, "start_elevation_m": 866.140282835846, "end_elevation_m": 871.2891473411249, "start_xy": [ 1007595.705479782, 6790625.144576857 ], "end_xy": [ 1007570.9184976869, 6790622.526106938 ] }, "max_50m": { "gradient_pct": 20.382415604969765, "start_distance_m": 1725.0, "end_distance_m": 1775.0, "midpoint_distance_m": 1750.0, "start_elevation_m": 862.1117898077104, "end_elevation_m": 872.3029976101952, "start_xy": [ 1007615.1601357958, 6790621.069968882 ], "end_xy": [ 1007566.4843748143, 6790620.240729775 ] }, "max_100m": { "gradient_pct": 18.82655758413773, "start_distance_m": 1685.0, "end_distance_m": 1785.0, "midpoint_distance_m": 1735.0, "start_elevation_m": 855.2170006827266, "end_elevation_m": 874.0435582668644, "start_xy": [ 1007649.3618745855, 6790600.471669886 ], "end_xy": [ 1007557.67611679, 6790615.506324789 ] } }, "window_minima": { "min_5m": { "gradient_pct": 2.098220294751627, "start_distance_m": 899.0, "end_distance_m": 904.0, "midpoint_distance_m": 901.5, "start_elevation_m": 769.9885731227309, "end_elevation_m": 770.0934841374685, "start_xy": [ 1007706.5267713574, 6790273.722644451 ], "end_xy": [ 1007701.9934278047, 6790275.82957389 ] }, "min_10m": { "gradient_pct": 2.1610100392138065, "start_distance_m": 899.0, "end_distance_m": 909.0, "midpoint_distance_m": 904.0, "start_elevation_m": 769.9885731227309, "end_elevation_m": 770.2046741266523, "start_xy": [ 1007706.5267713574, 6790273.722644451 ], "end_xy": [ 1007697.4988759167, 6790278.020180294 ] }, "min_20m": { "gradient_pct": 2.5871978925306394, "start_distance_m": 899.0, "end_distance_m": 919.0, "midpoint_distance_m": 909.0, "start_elevation_m": 769.9885731227309, "end_elevation_m": 770.5060127012371, "start_xy": [ 1007706.5267713574, 6790273.722644451 ], "end_xy": [ 1007688.5503058154, 6790282.476856961 ] }, "min_25m": { "gradient_pct": 2.708921629364795, "start_distance_m": 897.0, "end_distance_m": 922.0, "midpoint_distance_m": 909.5, "start_elevation_m": 769.9267446142073, "end_elevation_m": 770.6039750215485, "start_xy": [ 1007708.3583249446, 6790272.91926941 ], "end_xy": [ 1007685.7459096261, 6790283.542390636 ] }, "min_50m": { "gradient_pct": 3.3566255273090064, "start_distance_m": 2291.0, "end_distance_m": 2341.0, "midpoint_distance_m": 2316.0, "start_elevation_m": 942.5729554860288, "end_elevation_m": 944.2512682496833, "start_xy": [ 1007203.1569027989, 6790731.231757588 ], "end_xy": [ 1007155.7235948129, 6790746.727460198 ] }, "min_100m": { "gradient_pct": 4.520563531717471, "start_distance_m": 835.0, "end_distance_m": 935.0, "midpoint_distance_m": 885.0, "start_elevation_m": 766.6212795586912, "end_elevation_m": 771.1418430904087, "start_xy": [ 1007763.0931318476, 6790244.766914567 ], "end_xy": [ 1007672.9222920847, 6790283.806882257 ] } }, "diagnostic_window_maxima": { "max_2m": { "gradient_pct": 22.609049351416388, "start_distance_m": 220.0, "end_distance_m": 222.0, "midpoint_distance_m": 221.0, "start_elevation_m": 696.3036011009643, "end_elevation_m": 696.7557820879927, "start_xy": [ 1008259.4983625548, 6790149.461801819 ], "end_xy": [ 1008257.5008485864, 6790149.561491067 ] }, "max_3m": { "gradient_pct": 22.793283650878493, "start_distance_m": 220.0, "end_distance_m": 223.0, "midpoint_distance_m": 221.5, "start_elevation_m": 696.3036011009643, "end_elevation_m": 696.9873996104907, "start_xy": [ 1008259.4983625548, 6790149.461801819 ], "end_xy": [ 1008256.5020916022, 6790149.61133569 ] } }, "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": 0.339, "obstruction_max_height_m": 24.33, "flagged_windows_m": [ 2, 3, 5, 10, 20, 25, 50, 100 ] }, "review": [], "extent": [ "may_start_earlier", "may_continue_beyond_end" ] }, "provenance": { "analysis_version": "0.1.0", "run_manifest": { "manifest_version": "1", "code_git_sha": "686aca469eafb5c6deda431acc2396d659a613ab", "code_git_dirty": "false", "analysis_version": "0.1.0", "analysis_config_digest": "sha256:0048c2bbb24ab95e", "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-vosges", "road_pbf": "block-batch-fr-vosges.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": "sha256:3827be8f439ab5f4" }, "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_E1006-N6790_0m5@22LHDVosgesRF-2024-12-20.tif", "data/cache/fr/ign-lidarhd_dtm_E1007-N6790_0m5@22LHDVosgesRF-2024-12-20.tif", "data/cache/fr/ign-lidarhd_dtm_E1008-N6790_0m5@22LHDVosgesRF-2024-12-20.tif" ], "calculated_at": "2026-09-19T23:26:15+00:00", "road_source": "OpenStreetMap (local PBF extract)", "road_attribution": "\u00a9 OpenStreetMap contributors, ODbL", "osm_pbf_path": "data/cache/pbf/block-batch-fr-vosges.osm.pbf", "osm_snapshot": "", "run_id": "fr-vosges", "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": [ "E1006-N6790", "E1007-N6790", "E1008-N6790" ], "elevation_blocks": [ "22LHDVosgesRF@2024-12-20" ], "ign_dalles": [ "LHD_FXX_1006_6791_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_1007_6791_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_1008_6791_MNT_O_0M50_LAMB93_IGN69" ], "ign_missions": [ "22LHDVosgesRF" ], "ign_editions": [ "2024-12-20" ], "ign_dsm_edition": { "LHD_FXX_1006_6791_MNT_O_0M50_LAMB93_IGN69": "2024-12-20", "LHD_FXX_1007_6791_MNT_O_0M50_LAMB93_IGN69": "2024-12-20", "LHD_FXX_1008_6791_MNT_O_0M50_LAMB93_IGN69": "2024-12-20" }, "climb_origin": "discovered", "structure_own_ways": "none \u2014 the route carried no way list; own decks unmasked", "carriageway": { "stations": 108, "stations_resolved": 108, "width_median_m": 5.0, "width_p10_m": 3.25, "width_min_m": 2.0, "width_max_m": 10.0, "bounded_share": 0.435, "unbounded_share": 0.565, "confidence_median": 0.0, "width_median_bounded_m": 4.75, "window_m": [ 1745.0, 1770.0 ], "width_at_max25_m": 4.0, "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": 108, "stations_resolved": 108, "width_median_m": 3.5, "width_p10_m": 0.68, "width_min_m": 0.0, "width_max_m": 12.0, "bounded_share": 0.824, "unbounded_share": 0.176, "confidence_median": 1.0, "width_median_bounded_m": 2.5, "window_m": [ 1745.0, 1770.0 ], "width_at_max25_m": 2.38, "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": "Orbey", "county": "Haut-Rhin", "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)" } }