{ "ocl_version": "0.1.0", "name": "Col de la Serreyr\u00e8de from Saint-Sauveur-Camprieu", "slug": "col-de-la-serreyrede-from-saint-sauveur-camprieu", "confidence": "B", "reported_claims": [], "ladder": [ { "window_m": 2.0, "max_gradient_pct": 14.789654061326019, "diagnostic": true, "flags": [], "start_distance_m": 2154.0, "end_distance_m": 2156.0, "start_elevation_m": 1146.910349893357, "end_elevation_m": 1147.2061429745836, "min_gradient_pct": -9.073740385406381 }, { "window_m": 3.0, "max_gradient_pct": 12.819082323024608, "diagnostic": true, "flags": [], "start_distance_m": 2154.0, "end_distance_m": 2157.0, "start_elevation_m": 1146.910349893357, "end_elevation_m": 1147.2949223630478, "min_gradient_pct": -5.728664106580557 }, { "window_m": 5.0, "max_gradient_pct": 9.437728048178542, "diagnostic": false, "flags": [], "start_distance_m": 2154.0, "end_distance_m": 2159.0, "start_elevation_m": 1146.910349893357, "end_elevation_m": 1147.382236295766, "min_gradient_pct": -4.392720663968248 }, { "window_m": 10.0, "max_gradient_pct": 7.510809615650942, "diagnostic": false, "flags": [], "start_distance_m": 3749.0, "end_distance_m": 3759.0, "start_elevation_m": 1210.253990369971, "end_elevation_m": 1211.005071331536, "min_gradient_pct": -3.5044612174328904 }, { "window_m": 20.0, "max_gradient_pct": 7.141244503982307, "diagnostic": false, "flags": [ "canopy_or_structure" ], "start_distance_m": 3744.0, "end_distance_m": 3764.0, "start_elevation_m": 1209.8983149817118, "end_elevation_m": 1211.3265638825083, "min_gradient_pct": -2.0672503944797427 }, { "window_m": 25.0, "max_gradient_pct": 6.995855980709166, "diagnostic": false, "flags": [ "canopy_or_structure" ], "start_distance_m": 3744.0, "end_distance_m": 3769.0, "start_elevation_m": 1209.8983149817118, "end_elevation_m": 1211.647278976889, "min_gradient_pct": -1.5982501020525888 }, { "window_m": 50.0, "max_gradient_pct": 6.578499108455617, "diagnostic": false, "flags": [ "canopy_or_structure" ], "start_distance_m": 3734.0, "end_distance_m": 3784.0, "start_elevation_m": 1209.2918892042162, "end_elevation_m": 1212.581138758444, "min_gradient_pct": -0.9186730267388157 }, { "window_m": 100.0, "max_gradient_pct": 6.197827291595559, "diagnostic": false, "flags": [], "start_distance_m": 3856.0, "end_distance_m": 3956.0, "start_elevation_m": 1216.1891105999916, "end_elevation_m": 1222.3869378915872, "min_gradient_pct": -0.7635579915558992 } ], "shape": { "ascent_concentration": 0.352, "concentration_window_frac": 0.25, "longest_pitch_10pct_m": 0.0, "shape_class": "sustained" }, "length_m": 5945.402274224428, "start_elevation_m": 1104.770028707529, "end_elevation_m": 1299.2683494091848, "endpoint_gain_m": 194.49832070165576, "overall_gradient_pct": 3.2714072442983326, "accumulated_ascent_m": 198.35915155916246, "window_maxima": { "max_5m": { "gradient_pct": 9.437728048178542, "start_distance_m": 2154.0, "end_distance_m": 2159.0, "midpoint_distance_m": 2156.5, "start_elevation_m": 1146.910349893357, "end_elevation_m": 1147.382236295766, "start_xy": [ 739977.918611524, 6334017.962466466 ], "end_xy": [ 739980.8815767639, 6334013.934956443 ] }, "max_10m": { "gradient_pct": 7.510809615650942, "start_distance_m": 3749.0, "end_distance_m": 3759.0, "midpoint_distance_m": 3754.0, "start_elevation_m": 1210.253990369971, "end_elevation_m": 1211.005071331536, "start_xy": [ 741410.5798235321, 6333957.729583945 ], "end_xy": [ 741418.3957570492, 6333951.49170103 ] }, "max_20m": { "gradient_pct": 7.141244503982307, "start_distance_m": 3744.0, "end_distance_m": 3764.0, "midpoint_distance_m": 3754.0, "start_elevation_m": 1209.8983149817118, "end_elevation_m": 1211.3265638825083, "start_xy": [ 741406.6718567736, 6333960.848525402 ], "end_xy": [ 741422.5618377123, 6333948.736008997 ] }, "max_25m": { "gradient_pct": 6.995855980709166, "start_distance_m": 3744.0, "end_distance_m": 3769.0, "midpoint_distance_m": 3756.5, "start_elevation_m": 1209.8983149817118, "end_elevation_m": 1211.647278976889, "start_xy": [ 741406.6718567736, 6333960.848525402 ], "end_xy": [ 741426.7928239311, 6333946.071659993 ] }, "max_50m": { "gradient_pct": 6.578499108455617, "start_distance_m": 3734.0, "end_distance_m": 3784.0, "midpoint_distance_m": 3759.0, "start_elevation_m": 1209.2918892042162, "end_elevation_m": 1212.581138758444, "start_xy": [ 741398.8454026558, 6333967.073203051 ], "end_xy": [ 741439.7506195477, 6333938.531255115 ] }, "max_100m": { "gradient_pct": 6.197827291595559, "start_distance_m": 3856.0, "end_distance_m": 3956.0, "midpoint_distance_m": 3906.0, "start_elevation_m": 1216.1891105999916, "end_elevation_m": 1222.3869378915872, "start_xy": [ 741506.8248152554, 6333913.112771609 ], "end_xy": [ 741601.8692014611, 6333882.329241983 ] } }, "window_minima": { "min_5m": { "gradient_pct": -4.392720663968248, "start_distance_m": 5940.0, "end_distance_m": 5945.0, "midpoint_distance_m": 5942.5, "start_elevation_m": 1299.519848681375, "end_elevation_m": 1299.3002126481765, "start_xy": [ 743335.1598229177, 6333926.977044664 ], "end_xy": [ 743339.5303684381, 6333924.548396511 ] }, "min_10m": { "gradient_pct": -3.5044612174328904, "start_distance_m": 5935.0, "end_distance_m": 5945.0, "midpoint_distance_m": 5940.0, "start_elevation_m": 1299.6506587699198, "end_elevation_m": 1299.3002126481765, "start_xy": [ 743330.4783105892, 6333928.694375628 ], "end_xy": [ 743339.5303684381, 6333924.548396511 ] }, "min_20m": { "gradient_pct": -2.0672503944797427, "start_distance_m": 5925.0, "end_distance_m": 5945.0, "midpoint_distance_m": 5935.0, "start_elevation_m": 1299.7136627270725, "end_elevation_m": 1299.3002126481765, "start_xy": [ 743320.539517564, 6333928.99858202 ], "end_xy": [ 743339.5303684381, 6333924.548396511 ] }, "min_25m": { "gradient_pct": -1.5982501020525888, "start_distance_m": 5920.0, "end_distance_m": 5945.0, "midpoint_distance_m": 5932.5, "start_elevation_m": 1299.6997751736897, "end_elevation_m": 1299.3002126481765, "start_xy": [ 743315.5687852766, 6333928.458377867 ], "end_xy": [ 743339.5303684381, 6333924.548396511 ] }, "min_50m": { "gradient_pct": -0.9186730267388157, "start_distance_m": 164.0, "end_distance_m": 214.0, "midpoint_distance_m": 189.0, "start_elevation_m": 1103.666231005078, "end_elevation_m": 1103.2068944917087, "start_xy": [ 738712.5953218271, 6334969.324934188 ], "end_xy": [ 738693.6775208146, 6334923.041926456 ] }, "min_100m": { "gradient_pct": -0.7635579915558992, "start_distance_m": 114.0, "end_distance_m": 214.0, "midpoint_distance_m": 164.0, "start_elevation_m": 1103.9704524832646, "end_elevation_m": 1103.2068944917087, "start_xy": [ 738731.5131228397, 6335015.607941922 ], "end_xy": [ 738693.6775208146, 6334923.041926456 ] } }, "diagnostic_window_maxima": { "max_2m": { "gradient_pct": 14.789654061326019, "start_distance_m": 2154.0, "end_distance_m": 2156.0, "midpoint_distance_m": 2155.0, "start_elevation_m": 1146.910349893357, "end_elevation_m": 1147.2061429745836, "start_xy": [ 739977.918611524, 6334017.962466466 ], "end_xy": [ 739979.10379762, 6334016.351462457 ] }, "max_3m": { "gradient_pct": 12.819082323024608, "start_distance_m": 2154.0, "end_distance_m": 2157.0, "midpoint_distance_m": 2155.5, "start_elevation_m": 1146.910349893357, "end_elevation_m": 1147.2949223630478, "start_xy": [ 739977.918611524, 6334017.962466466 ], "end_xy": [ 739979.696390668, 6334015.545960452 ] } }, "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": 0.062, "obstruction_max_height_m": 24.01, "flagged_windows_m": [ 20, 25, 50 ] }, "review": [], "extent": [] }, "provenance": { "analysis_version": "0.1.0", "run_manifest": { "manifest_version": "1", "code_git_sha": "1cc9fdcd6556a02163cb21acb2293cad3067d2a1", "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-mc5", "road_pbf": "block-batch-fr-mc5.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:af4eae1f5df9e232" }, "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_E738-N6333_0m5@21LHD4MO-2024-12-13.tif", "data/cache/fr/ign-lidarhd_dtm_E738-N6334_0m5@21LHD4MO-2024-12-13.tif", "data/cache/fr/ign-lidarhd_dtm_E738-N6335_0m5@21LHD4MO-2024-12-13.tif", "data/cache/fr/ign-lidarhd_dtm_E739-N6333_0m5@21LHD4MO-2024-12-13.tif", "data/cache/fr/ign-lidarhd_dtm_E739-N6334_0m5@21LHD4MO-2024-12-13.tif", "data/cache/fr/ign-lidarhd_dtm_E740-N6333_0m5@21LHD4MO-2024-12-13.tif", "data/cache/fr/ign-lidarhd_dtm_E740-N6334_0m5@21LHD4MO-2024-12-13.tif", "data/cache/fr/ign-lidarhd_dtm_E741-N6333_0m5@21LHD4MO-2024-12-13.tif", "data/cache/fr/ign-lidarhd_dtm_E741-N6334_0m5@21LHD4MO-2024-12-13.tif", "data/cache/fr/ign-lidarhd_dtm_E742-N6333_0m5@21LHD4MO-2024-12-13.tif", "data/cache/fr/ign-lidarhd_dtm_E742-N6334_0m5@21LHD4MO-2024-12-13.tif", "data/cache/fr/ign-lidarhd_dtm_E743-N6333_0m5@21LHD4MO-2024-12-13.tif", "data/cache/fr/ign-lidarhd_dtm_E743-N6334_0m5@21LHD4MO-2024-12-13.tif" ], "calculated_at": "2026-09-22T16:57:26+00:00", "road_source": "OpenStreetMap (local PBF extract)", "road_attribution": "\u00a9 OpenStreetMap contributors, ODbL", "osm_pbf_path": "data/cache/pbf/block-batch-fr-mc5.osm.pbf", "osm_snapshot": "", "run_id": "fr-mc5", "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": [ "E738-N6333", "E738-N6334", "E738-N6335", "E739-N6333", "E739-N6334", "E740-N6333", "E740-N6334", "E741-N6333", "E741-N6334", "E742-N6333", "E742-N6334", "E743-N6333", "E743-N6334" ], "elevation_blocks": [ "21LHD4MO@2024-12-13" ], "ign_dalles": [ "LHD_FXX_0738_6334_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0738_6335_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0738_6336_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0739_6334_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0739_6335_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0740_6334_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0740_6335_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0741_6334_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0741_6335_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0742_6334_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0742_6335_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0743_6334_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0743_6335_MNT_O_0M50_LAMB93_IGN69" ], "ign_missions": [ "21LHD4MO" ], "ign_editions": [ "2024-12-13" ], "ign_dsm_edition": { "LHD_FXX_0738_6334_MNT_O_0M50_LAMB93_IGN69": "2024-12-13", "LHD_FXX_0738_6335_MNT_O_0M50_LAMB93_IGN69": "2024-12-13", "LHD_FXX_0738_6336_MNT_O_0M50_LAMB93_IGN69": "2024-12-13", "LHD_FXX_0739_6334_MNT_O_0M50_LAMB93_IGN69": "2024-12-13", "LHD_FXX_0739_6335_MNT_O_0M50_LAMB93_IGN69": "2024-12-13", "LHD_FXX_0740_6334_MNT_O_0M50_LAMB93_IGN69": "2024-12-13", "LHD_FXX_0740_6335_MNT_O_0M50_LAMB93_IGN69": "2024-12-13", "LHD_FXX_0741_6334_MNT_O_0M50_LAMB93_IGN69": "2024-12-13", "LHD_FXX_0741_6335_MNT_O_0M50_LAMB93_IGN69": "2024-12-13", "LHD_FXX_0742_6334_MNT_O_0M50_LAMB93_IGN69": "2024-12-13", "LHD_FXX_0742_6335_MNT_O_0M50_LAMB93_IGN69": "2024-12-13", "LHD_FXX_0743_6334_MNT_O_0M50_LAMB93_IGN69": "2024-12-13", "LHD_FXX_0743_6335_MNT_O_0M50_LAMB93_IGN69": "2024-12-13" }, "climb_origin": "named-pass", "structure_own_ways": 13, "carriageway": { "stations": 244, "stations_resolved": 244, "width_median_m": 7.5, "width_p10_m": 5.75, "width_min_m": 1.25, "width_max_m": 12.0, "bounded_share": 0.291, "unbounded_share": 0.709, "confidence_median": 0.0, "width_median_bounded_m": 7.5, "window_m": [ 3744.0, 3769.0 ], "width_at_max25_m": 7.75, "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": 244, "stations_resolved": 244, "width_median_m": 7.25, "width_p10_m": 2.75, "width_min_m": 0.0, "width_max_m": 12.0, "bounded_share": 0.742, "unbounded_share": 0.258, "confidence_median": 1.0, "width_median_bounded_m": 6.5, "window_m": [ 3744.0, 3769.0 ], "width_at_max25_m": 5.75, "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-Sauveur-Camprieu", "county": "Gard", "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)" } }