{ "ocl_version": "0.1.0", "name": "Col de la Croix de la Serra from Villard-Saint-Sauveur", "slug": "col-de-la-croix-de-la-serra-from-villard-saint-sauveur", "confidence": "B", "reported_claims": [], "ladder": [ { "window_m": 2.0, "max_gradient_pct": 21.7258941095281, "diagnostic": true, "flags": [ "no_bench_excluded_min" ], "start_distance_m": 8097.0, "end_distance_m": 8099.0, "start_elevation_m": 948.9152473591026, "end_elevation_m": 949.3497652412932, "min_gradient_pct": -10.171498735832074, "suppressed_min_gradient_pct": -21.030109164541955, "suppressed_min_location_m": [ 8026.0, 8028.0 ] }, { "window_m": 3.0, "max_gradient_pct": 18.1300519982301, "diagnostic": true, "flags": [ "no_bench_excluded_min" ], "start_distance_m": 8097.0, "end_distance_m": 8100.0, "start_elevation_m": 948.9152473591026, "end_elevation_m": 949.4591489190495, "min_gradient_pct": -7.27247757550155, "suppressed_min_gradient_pct": -17.777514089516444, "suppressed_min_location_m": [ 8026.0, 8029.0 ] }, { "window_m": 5.0, "max_gradient_pct": 16.557820450004783, "diagnostic": false, "flags": [ "no_bench_excluded_min" ], "start_distance_m": 8097.0, "end_distance_m": 8102.0, "start_elevation_m": 948.9152473591026, "end_elevation_m": 949.7431383816029, "min_gradient_pct": -3.8236820734937282, "suppressed_min_gradient_pct": -13.448601615077678, "suppressed_min_location_m": [ 8024.0, 8029.0 ] }, { "window_m": 10.0, "max_gradient_pct": 16.173333659744458, "diagnostic": false, "flags": [ "no_bench_excluded_min" ], "start_distance_m": 8097.0, "end_distance_m": 8107.0, "start_elevation_m": 948.9152473591026, "end_elevation_m": 950.5325807250771, "min_gradient_pct": -2.1568970822875144, "suppressed_min_gradient_pct": -8.869066342740552, "suppressed_min_location_m": [ 8023.0, 8033.0 ] }, { "window_m": 20.0, "max_gradient_pct": 12.072237927630454, "diagnostic": false, "flags": [ "no_bench_excluded_min" ], "start_distance_m": 8096.0, "end_distance_m": 8116.0, "start_elevation_m": 948.8270590179217, "end_elevation_m": 951.2415066034478, "min_gradient_pct": -2.0818656373995736, "suppressed_min_gradient_pct": -7.370903498459711, "suppressed_min_location_m": [ 8021.0, 8041.0 ] }, { "window_m": 25.0, "max_gradient_pct": 11.192142502794468, "diagnostic": false, "flags": [ "no_bench_excluded_min" ], "start_distance_m": 8088.0, "end_distance_m": 8113.0, "start_elevation_m": 948.2327112534477, "end_elevation_m": 951.0307468791464, "min_gradient_pct": -1.8832092788984482, "suppressed_min_gradient_pct": -5.16109833498831, "suppressed_min_location_m": [ 8016.0, 8041.0 ] }, { "window_m": 50.0, "max_gradient_pct": 8.893352236665123, "diagnostic": false, "flags": [ "no_bench_excluded", "canopy_or_structure" ], "start_distance_m": 8072.0, "end_distance_m": 8122.0, "start_elevation_m": 947.1380204066013, "end_elevation_m": 951.5846965249339, "min_gradient_pct": -1.3889655311140814, "suppressed_max_gradient_pct": 9.114815260957357, "suppressed_location_m": [ 8068.0, 8118.0 ] }, { "window_m": 100.0, "max_gradient_pct": 7.461332452751321, "diagnostic": false, "flags": [], "start_distance_m": 8615.0, "end_distance_m": 8715.0, "start_elevation_m": 978.7273931315497, "end_elevation_m": 986.188725584301, "min_gradient_pct": -0.6383794502075943 } ], "shape": { "ascent_concentration": 0.285, "concentration_window_frac": 0.25, "longest_pitch_10pct_m": 24.0, "shape_class": "sustained" }, "length_m": 10233.529925193849, "start_elevation_m": 535.5669669770544, "end_elevation_m": 1048.2756352070292, "endpoint_gain_m": 512.7086682299747, "overall_gradient_pct": 5.010086177280248, "accumulated_ascent_m": 521.2618923269519, "window_maxima": { "max_5m": { "gradient_pct": 16.557820450004783, "start_distance_m": 8097.0, "end_distance_m": 8102.0, "midpoint_distance_m": 8099.5, "start_elevation_m": 948.9152473591026, "end_elevation_m": 949.7431383816029, "start_xy": [ 916396.2205819816, 6582200.949981272 ], "end_xy": [ 916394.8735323286, 6582196.134853316 ] }, "max_10m": { "gradient_pct": 16.173333659744458, "start_distance_m": 8097.0, "end_distance_m": 8107.0, "midpoint_distance_m": 8102.0, "start_elevation_m": 948.9152473591026, "end_elevation_m": 950.5325807250771, "start_xy": [ 916396.2205819816, 6582200.949981272 ], "end_xy": [ 916393.5264826757, 6582191.31972536 ] }, "max_20m": { "gradient_pct": 12.072237927630454, "start_distance_m": 8096.0, "end_distance_m": 8116.0, "midpoint_distance_m": 8106.0, "start_elevation_m": 948.8270590179217, "end_elevation_m": 951.2415066034478, "start_xy": [ 916396.4899919122, 6582201.913006864 ], "end_xy": [ 916390.9768325543, 6582182.688428766 ] }, "max_25m": { "gradient_pct": 11.192142502794468, "start_distance_m": 8088.0, "end_distance_m": 8113.0, "midpoint_distance_m": 8100.5, "start_elevation_m": 948.2327112534477, "end_elevation_m": 951.0307468791464, "start_xy": [ 916398.6452713569, 6582209.617211592 ], "end_xy": [ 916391.8267242217, 6582185.565525246 ] }, "max_50m": { "gradient_pct": 8.893352236665123, "start_distance_m": 8072.0, "end_distance_m": 8122.0, "midpoint_distance_m": 8097.0, "start_elevation_m": 947.1380204066013, "end_elevation_m": 951.5846965249339, "start_xy": [ 916402.4806354482, 6582225.150075603 ], "end_xy": [ 916389.2770492198, 6582176.934235807 ] }, "max_100m": { "gradient_pct": 7.461332452751321, "start_distance_m": 8615.0, "end_distance_m": 8715.0, "midpoint_distance_m": 8665.0, "start_elevation_m": 978.7273931315497, "end_elevation_m": 986.188725584301, "start_xy": [ 916208.818930626, 6581752.50370664 ], "end_xy": [ 916142.738043167, 6581683.353096034 ] } }, "window_minima": { "min_5m": { "gradient_pct": -3.8236820734937282, "start_distance_m": 6199.0, "end_distance_m": 6204.0, "midpoint_distance_m": 6201.5, "start_elevation_m": 881.6936220210387, "end_elevation_m": 881.502437917364, "start_xy": [ 916720.2853956507, 6583946.719852585 ], "end_xy": [ 916718.7934263432, 6583941.947638468 ] }, "min_10m": { "gradient_pct": -2.1568970822875144, "start_distance_m": 6688.0, "end_distance_m": 6698.0, "midpoint_distance_m": 6693.0, "start_elevation_m": 883.6978377163822, "end_elevation_m": 883.4821480081534, "start_xy": [ 916619.2230683942, 6583482.286738113 ], "end_xy": [ 916611.8810158946, 6583475.502288983 ] }, "min_20m": { "gradient_pct": -2.0818656373995736, "start_distance_m": 6688.0, "end_distance_m": 6708.0, "midpoint_distance_m": 6698.0, "start_elevation_m": 883.6978377163822, "end_elevation_m": 883.2814645889023, "start_xy": [ 916619.2230683942, 6583482.286738113 ], "end_xy": [ 916605.2473376504, 6583468.032718484 ] }, "min_25m": { "gradient_pct": -1.8832092788984482, "start_distance_m": 6684.0, "end_distance_m": 6709.0, "midpoint_distance_m": 6696.5, "start_elevation_m": 883.7328761120483, "end_elevation_m": 883.2620737923237, "start_xy": [ 916622.2218032996, 6583484.933923215 ], "end_xy": [ 916604.646730232, 6583467.234245907 ] }, "min_50m": { "gradient_pct": -1.3889655311140814, "start_distance_m": 6673.0, "end_distance_m": 6723.0, "midpoint_distance_m": 6698.0, "start_elevation_m": 883.8538521662485, "end_elevation_m": 883.1593694006915, "start_xy": [ 916630.4683242895, 6583492.213682246 ], "end_xy": [ 916597.9136067133, 6583455.0423374735 ] }, "min_100m": { "gradient_pct": -0.6383794502075943, "start_distance_m": 6623.0, "end_distance_m": 6723.0, "midpoint_distance_m": 6673.0, "start_elevation_m": 883.7977488508991, "end_elevation_m": 883.1593694006915, "start_xy": [ 916643.2320888465, 6583538.979368944 ], "end_xy": [ 916597.9136067133, 6583455.0423374735 ] } }, "diagnostic_window_maxima": { "max_2m": { "gradient_pct": 21.7258941095281, "start_distance_m": 8097.0, "end_distance_m": 8099.0, "midpoint_distance_m": 8098.0, "start_elevation_m": 948.9152473591026, "end_elevation_m": 949.3497652412932, "start_xy": [ 916396.2205819816, 6582200.949981272 ], "end_xy": [ 916395.6817621205, 6582199.02393009 ] }, "max_3m": { "gradient_pct": 18.1300519982301, "start_distance_m": 8097.0, "end_distance_m": 8100.0, "midpoint_distance_m": 8098.5, "start_elevation_m": 948.9152473591026, "end_elevation_m": 949.4591489190495, "start_xy": [ 916396.2205819816, 6582200.949981272 ], "end_xy": [ 916395.4123521899, 6582198.060904498 ] } }, "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": { "no_bench_suppression": { "masked_fraction": 0.005, "windows_resited": [ 50.0 ], "windows_unresolved": [], "minima_resited": [ 2.0, 3.0, 5.0, 10.0, 20.0, 25.0 ], "minima_unresolved": [] }, "overhead_obstruction": { "obstruction_threshold_m": 2.0, "obstructed_fraction": 0.024, "obstruction_max_height_m": 28.75, "flagged_windows_m": [ 50 ] }, "excluded_ranges_m": [ [ 8020.0, 8070.0 ] ], "review": [], "extent": [] }, "provenance": { "analysis_version": "0.1.0", "run_manifest": { "manifest_version": "1", "code_git_sha": "f5b73ceb069e047c313bd7ccccf3cb122dbac107", "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-ju2", "road_pbf": "block-batch-fr-ju2.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": "sha256:79fd787249c9f7bb" }, "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_E915-N6580_0m5@22LHD2PJ-2025-07-21.tif", "data/cache/fr/ign-lidarhd_dtm_E915-N6581_0m5@22LHD2PJ-2025-07-21.tif", "data/cache/fr/ign-lidarhd_dtm_E916-N6580_0m5@22LHD2PJ-2025-07-21.tif", "data/cache/fr/ign-lidarhd_dtm_E916-N6581_0m5@22LHD2PJ-2025-07-21.tif", "data/cache/fr/ign-lidarhd_dtm_E916-N6582_0m5@22LHD2PJ-2025-07-21.tif", "data/cache/fr/ign-lidarhd_dtm_E916-N6583_0m5@22LHD2PJ-2025-07-21.tif", "data/cache/fr/ign-lidarhd_dtm_E916-N6584_0m5@22LHD2PJ-2025-07-21.tif", "data/cache/fr/ign-lidarhd_dtm_E916-N6585_0m5@22LHD2PJ-2025-07-21.tif", "data/cache/fr/ign-lidarhd_dtm_E916-N6586_0m5@22LHD2PJ-2025-07-21.tif", "data/cache/fr/ign-lidarhd_dtm_E917-N6584_0m5@22LHD2PJ-2025-07-21.tif", "data/cache/fr/ign-lidarhd_dtm_E917-N6585_0m5@22LHD2PJ-2025-07-21.tif", "data/cache/fr/ign-lidarhd_dtm_E917-N6586_0m5@22LHD2PJ-2025-07-21.tif", "data/cache/fr/ign-lidarhd_dtm_E917-N6587_0m5@22LHD2PJ-2025-07-21.tif", "data/cache/fr/ign-lidarhd_dtm_E918-N6586_0m5@22LHD2PJ-2025-07-21.tif", "data/cache/fr/ign-lidarhd_dtm_E918-N6587_0m5@22LHD2PJ-2025-07-21.tif", "data/cache/fr/ign-lidarhd_dtm_E918-N6588_0m5@22LHD2PJ-2025-07-21.tif", "data/cache/fr/ign-lidarhd_dtm_E919-N6588_0m5@22LHD2PJ-2025-07-21.tif" ], "calculated_at": "2026-09-24T16:23:39+00:00", "road_source": "OpenStreetMap (local PBF extract)", "road_attribution": "\u00a9 OpenStreetMap contributors, ODbL", "osm_pbf_path": "data/cache/pbf/block-batch-fr-ju2.osm.pbf", "osm_snapshot": "", "run_id": "fr-ju2", "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": [ "E915-N6580", "E915-N6581", "E916-N6580", "E916-N6581", "E916-N6582", "E916-N6583", "E916-N6584", "E916-N6585", "E916-N6586", "E917-N6584", "E917-N6585", "E917-N6586", "E917-N6587", "E918-N6586", "E918-N6587", "E918-N6588", "E919-N6588" ], "elevation_blocks": [ "22LHD2PJ@2025-07-21" ], "ign_dalles": [ "LHD_FXX_0915_6581_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0915_6582_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0916_6581_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0916_6582_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0916_6583_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0916_6584_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0916_6585_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0916_6586_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0916_6587_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0917_6585_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0917_6586_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0917_6587_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0917_6588_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0918_6587_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0918_6588_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0918_6589_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0919_6589_MNT_O_0M50_LAMB93_IGN69" ], "ign_missions": [ "22LHD2PJ" ], "ign_editions": [ "2025-07-21" ], "ign_dsm_edition": { "LHD_FXX_0915_6581_MNT_O_0M50_LAMB93_IGN69": "2025-07-21", "LHD_FXX_0915_6582_MNT_O_0M50_LAMB93_IGN69": "2025-07-21", "LHD_FXX_0916_6581_MNT_O_0M50_LAMB93_IGN69": "2025-07-21", "LHD_FXX_0916_6582_MNT_O_0M50_LAMB93_IGN69": "2025-07-21", "LHD_FXX_0916_6583_MNT_O_0M50_LAMB93_IGN69": "2025-07-21", "LHD_FXX_0916_6584_MNT_O_0M50_LAMB93_IGN69": "2025-07-21", "LHD_FXX_0916_6585_MNT_O_0M50_LAMB93_IGN69": "2025-07-21", "LHD_FXX_0916_6586_MNT_O_0M50_LAMB93_IGN69": "2025-07-21", "LHD_FXX_0916_6587_MNT_O_0M50_LAMB93_IGN69": "2025-07-21", "LHD_FXX_0917_6585_MNT_O_0M50_LAMB93_IGN69": "2025-07-21", "LHD_FXX_0917_6586_MNT_O_0M50_LAMB93_IGN69": "2025-07-21", "LHD_FXX_0917_6587_MNT_O_0M50_LAMB93_IGN69": "2025-07-21", "LHD_FXX_0917_6588_MNT_O_0M50_LAMB93_IGN69": "2025-07-21", "LHD_FXX_0918_6587_MNT_O_0M50_LAMB93_IGN69": "2025-07-21", "LHD_FXX_0918_6588_MNT_O_0M50_LAMB93_IGN69": "2025-07-21", "LHD_FXX_0918_6589_MNT_O_0M50_LAMB93_IGN69": "2025-07-21", "LHD_FXX_0919_6589_MNT_O_0M50_LAMB93_IGN69": "2025-07-21" }, "climb_origin": "named-pass", "structure_own_ways": 12, "carriageway": { "stations": 416, "stations_resolved": 416, "width_median_m": 7.75, "width_p10_m": 5.75, "width_min_m": 1.25, "width_max_m": 12.0, "bounded_share": 0.382, "unbounded_share": 0.618, "confidence_median": 0.0, "width_median_bounded_m": 7.25, "window_m": [ 8088.0, 8113.0 ], "width_at_max25_m": 3.5, "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": 416, "stations_resolved": 416, "width_median_m": 9.25, "width_p10_m": 5.25, "width_min_m": 0.5, "width_max_m": 12.0, "bounded_share": 0.579, "unbounded_share": 0.421, "confidence_median": 1.0, "width_median_bounded_m": 8.0, "window_m": [ 8088.0, 8113.0 ], "width_at_max25_m": 3.25, "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": "Villard-Saint-Sauveur", "county": "Jura", "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)" } }