{ "ocl_version": "0.1.0", "name": "Col de Pierre Plate from Florac Trois Rivi\u00e8res", "slug": "col-de-pierre-plate-from-florac-trois-rivieres", "confidence": "B", "reported_claims": [], "ladder": [ { "window_m": 2.0, "max_gradient_pct": 15.256689974114579, "diagnostic": true, "flags": [ "structure_excluded", "structure_excluded_min" ], "start_distance_m": 2701.0, "end_distance_m": 2703.0, "start_elevation_m": 815.2198871935952, "end_elevation_m": 815.5250209930775, "min_gradient_pct": -1.061630814496084, "suppressed_max_gradient_pct": 79.24788874625506, "suppressed_location_m": [ 1645.0, 1647.0 ], "suppressed_min_gradient_pct": -64.94759275839783, "suppressed_min_location_m": [ 1642.0, 1644.0 ] }, { "window_m": 3.0, "max_gradient_pct": 13.488069049799378, "diagnostic": true, "flags": [ "structure_excluded", "structure_excluded_min", "canopy_or_structure" ], "start_distance_m": 925.0, "end_distance_m": 928.0, "start_elevation_m": 662.5452100372886, "end_elevation_m": 662.9498521087826, "min_gradient_pct": 0.4521970462784945, "suppressed_max_gradient_pct": 56.720628644840566, "suppressed_location_m": [ 1644.0, 1647.0 ], "suppressed_min_gradient_pct": -40.47547695973511, "suppressed_min_location_m": [ 1641.0, 1644.0 ] }, { "window_m": 5.0, "max_gradient_pct": 12.719429969004068, "diagnostic": false, "flags": [ "structure_excluded", "structure_excluded_min" ], "start_distance_m": 979.0, "end_distance_m": 984.0, "start_elevation_m": 668.153402155291, "end_elevation_m": 668.7893736537412, "min_gradient_pct": 1.4294478210126726, "suppressed_max_gradient_pct": 36.99800530874654, "suppressed_location_m": [ 1644.0, 1649.0 ], "suppressed_min_gradient_pct": -21.12904655008151, "suppressed_min_location_m": [ 1639.0, 1644.0 ] }, { "window_m": 10.0, "max_gradient_pct": 12.599788659239266, "diagnostic": false, "flags": [ "structure_excluded", "structure_excluded_min" ], "start_distance_m": 977.0, "end_distance_m": 987.0, "start_elevation_m": 667.8881458000344, "end_elevation_m": 669.1481246659583, "min_gradient_pct": 2.0972672940888515, "suppressed_max_gradient_pct": 22.098383861643924, "suppressed_location_m": [ 1644.0, 1654.0 ], "suppressed_min_gradient_pct": -6.51819463629181, "suppressed_min_location_m": [ 1634.0, 1644.0 ] }, { "window_m": 20.0, "max_gradient_pct": 11.952901111454253, "diagnostic": false, "flags": [ "structure_excluded", "structure_excluded_min" ], "start_distance_m": 972.0, "end_distance_m": 992.0, "start_elevation_m": 667.3131669264163, "end_elevation_m": 669.7037471487072, "min_gradient_pct": 3.0900286714529557, "suppressed_max_gradient_pct": 14.863442547940053, "suppressed_location_m": [ 1644.0, 1664.0 ], "suppressed_min_gradient_pct": 0.5366608950532736, "suppressed_min_location_m": [ 1624.0, 1644.0 ] }, { "window_m": 25.0, "max_gradient_pct": 11.552364528256021, "diagnostic": false, "flags": [ "structure_excluded", "structure_excluded_min" ], "start_distance_m": 967.0, "end_distance_m": 992.0, "start_elevation_m": 666.8156560166432, "end_elevation_m": 669.7037471487072, "min_gradient_pct": 3.530244313424646, "suppressed_max_gradient_pct": 13.358355784502237, "suppressed_location_m": [ 1644.0, 1669.0 ], "suppressed_min_gradient_pct": 1.8796833975952723, "suppressed_min_location_m": [ 1619.0, 1644.0 ] }, { "window_m": 50.0, "max_gradient_pct": 10.966053159247167, "diagnostic": false, "flags": [], "start_distance_m": 1339.0, "end_distance_m": 1389.0, "start_elevation_m": 699.8991568500392, "end_elevation_m": 705.3821834296627, "min_gradient_pct": 4.828541995603246 }, { "window_m": 100.0, "max_gradient_pct": 10.413446191572916, "diagnostic": false, "flags": [], "start_distance_m": 1289.0, "end_distance_m": 1389.0, "start_elevation_m": 694.9687372380898, "end_elevation_m": 705.3821834296627, "min_gradient_pct": 6.268059416809592 } ], "shape": { "ascent_concentration": 0.274, "concentration_window_frac": 0.25, "longest_pitch_10pct_m": 58.0, "shape_class": "sustained" }, "length_m": 5360.424000197002, "start_elevation_m": 586.2024561677172, "end_elevation_m": 1018.8449692922335, "endpoint_gain_m": 432.6425131245163, "overall_gradient_pct": 8.07105022118803, "accumulated_ascent_m": 434.0489621333543, "window_maxima": { "max_5m": { "gradient_pct": 12.719429969004068, "start_distance_m": 979.0, "end_distance_m": 984.0, "midpoint_distance_m": 981.5, "start_elevation_m": 668.153402155291, "end_elevation_m": 668.7893736537412, "start_xy": [ 746987.2182241274, 6358133.6124093095 ], "end_xy": [ 746991.4072455798, 6358130.882555967 ] }, "max_10m": { "gradient_pct": 12.599788659239266, "start_distance_m": 977.0, "end_distance_m": 987.0, "midpoint_distance_m": 982.0, "start_elevation_m": 667.8881458000344, "end_elevation_m": 669.1481246659583, "start_xy": [ 746985.5463659783, 6358134.709579628 ], "end_xy": [ 746993.9206584512, 6358129.244643961 ] }, "max_20m": { "gradient_pct": 11.952901111454253, "start_distance_m": 972.0, "end_distance_m": 992.0, "midpoint_distance_m": 982.0, "start_elevation_m": 667.3131669264163, "end_elevation_m": 669.7037471487072, "start_xy": [ 746981.617521415, 6358137.802180539 ], "end_xy": [ 746997.6791603775, 6358125.993041081 ] }, "max_25m": { "gradient_pct": 11.552364528256021, "start_distance_m": 967.0, "end_distance_m": 992.0, "midpoint_distance_m": 979.5, "start_elevation_m": 666.8156560166432, "end_elevation_m": 669.7037471487072, "start_xy": [ 746978.0623098803, 6358141.283688382 ], "end_xy": [ 746997.6791603775, 6358125.993041081 ] }, "max_50m": { "gradient_pct": 10.966053159247167, "start_distance_m": 1339.0, "end_distance_m": 1389.0, "midpoint_distance_m": 1364.0, "start_elevation_m": 699.8991568500392, "end_elevation_m": 705.3821834296627, "start_xy": [ 746767.5051936855, 6358343.328370156 ], "end_xy": [ 746717.7546855496, 6358343.725153152 ] }, "max_100m": { "gradient_pct": 10.413446191572916, "start_distance_m": 1289.0, "end_distance_m": 1389.0, "midpoint_distance_m": 1339.0, "start_elevation_m": 694.9687372380898, "end_elevation_m": 705.3821834296627, "start_xy": [ 746812.9453176593, 6358326.783719703 ], "end_xy": [ 746717.7546855496, 6358343.725153152 ] } }, "window_minima": { "min_5m": { "gradient_pct": 1.4294478210126726, "start_distance_m": 2717.0, "end_distance_m": 2722.0, "midpoint_distance_m": 2719.5, "start_elevation_m": 816.1631308512879, "end_elevation_m": 816.2346032423385, "start_xy": [ 745855.9719068924, 6359228.922670811 ], "end_xy": [ 745854.0941807263, 6359224.710983024 ] }, "min_10m": { "gradient_pct": 2.0972672940888515, "start_distance_m": 2715.0, "end_distance_m": 2725.0, "midpoint_distance_m": 2720.0, "start_elevation_m": 816.1194705974085, "end_elevation_m": 816.3291973268174, "start_xy": [ 745857.309459502, 6359230.353501269 ], "end_xy": [ 745854.4862457454, 6359221.736712522 ] }, "min_20m": { "gradient_pct": 3.0900286714529557, "start_distance_m": 2707.0, "end_distance_m": 2727.0, "midpoint_distance_m": 2717.0, "start_elevation_m": 815.8050322786031, "end_elevation_m": 816.4230380128937, "start_xy": [ 745864.473333991, 6359228.589627432 ], "end_xy": [ 745854.8137890749, 6359219.773562271 ] }, "min_25m": { "gradient_pct": 3.530244313424646, "start_distance_m": 2709.0, "end_distance_m": 2734.0, "midpoint_distance_m": 2721.5, "start_elevation_m": 815.9110631933153, "end_elevation_m": 816.7936242716714, "start_xy": [ 745863.22337731, 6359230.150911613 ], "end_xy": [ 745857.8433991877, 6359213.463137359 ] }, "min_50m": { "gradient_pct": 4.828541995603246, "start_distance_m": 2705.0, "end_distance_m": 2755.0, "midpoint_distance_m": 2730.0, "start_elevation_m": 815.6908124321312, "end_elevation_m": 818.1050834299328, "start_xy": [ 745865.7232906721, 6359227.02834325 ], "end_xy": [ 745866.821435122, 6359194.47918566 ] }, "min_100m": { "gradient_pct": 6.268059416809592, "start_distance_m": 2704.0, "end_distance_m": 2804.0, "midpoint_distance_m": 2754.0, "start_elevation_m": 815.6067324203514, "end_elevation_m": 821.874791837161, "start_xy": [ 745866.3482690126, 6359226.247701159 ], "end_xy": [ 745878.4455460011, 6359146.915522974 ] } }, "diagnostic_window_maxima": { "max_2m": { "gradient_pct": 15.256689974114579, "start_distance_m": 2701.0, "end_distance_m": 2703.0, "midpoint_distance_m": 2702.0, "start_elevation_m": 815.2198871935952, "end_elevation_m": 815.5250209930775, "start_xy": [ 745868.2055142934, 6359223.896558167 ], "end_xy": [ 745866.9732473532, 6359225.467059068 ] }, "max_3m": { "gradient_pct": 13.488069049799378, "start_distance_m": 925.0, "end_distance_m": 928.0, "midpoint_distance_m": 926.5, "start_elevation_m": 662.5452100372886, "end_elevation_m": 662.9498521087826, "start_xy": [ 746962.6134108239, 6358179.622794901 ], "end_xy": [ 746963.2130992785, 6358176.683343633 ] } }, "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": 0.006, "windows_resited": [ 2.0, 3.0, 5.0, 10.0, 20.0, 25.0 ], "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": 0.009, "obstruction_max_height_m": 18.77, "flagged_windows_m": [ 3 ] }, "excluded_ranges_m": [ [ 280.0, 302.0 ], [ 1641.0, 1648.0 ] ], "review": [], "extent": [ "may_start_earlier", "may_continue_beyond_end" ] }, "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_E745-N6358_0m5@21LHD4MO-2024-12-13.tif", "data/cache/fr/ign-lidarhd_dtm_E745-N6359_0m5@21LHD4MO-2024-12-13.tif", "data/cache/fr/ign-lidarhd_dtm_E746-N6358_0m5@21LHD4MO-2024-12-13.tif", "data/cache/fr/ign-lidarhd_dtm_E746-N6359_0m5@21LHD4MO-2024-12-13.tif", "data/cache/fr/ign-lidarhd_dtm_E747-N6358_0m5@21LHD4MO-2024-12-13.tif" ], "calculated_at": "2026-09-22T18:02:29+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": [ "E745-N6358", "E745-N6359", "E746-N6358", "E746-N6359", "E747-N6358" ], "elevation_blocks": [ "21LHD4MO@2024-12-13" ], "ign_dalles": [ "LHD_FXX_0745_6359_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0745_6360_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0746_6359_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0746_6360_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0747_6359_MNT_O_0M50_LAMB93_IGN69" ], "ign_missions": [ "21LHD4MO" ], "ign_editions": [ "2024-12-13" ], "ign_dsm_edition": { "LHD_FXX_0745_6359_MNT_O_0M50_LAMB93_IGN69": "2024-12-13", "LHD_FXX_0745_6360_MNT_O_0M50_LAMB93_IGN69": "2024-12-13", "LHD_FXX_0746_6359_MNT_O_0M50_LAMB93_IGN69": "2024-12-13", "LHD_FXX_0746_6360_MNT_O_0M50_LAMB93_IGN69": "2024-12-13", "LHD_FXX_0747_6359_MNT_O_0M50_LAMB93_IGN69": "2024-12-13" }, "climb_origin": "named-pass", "structure_own_ways": 15, "structure_mask_ranges_m": [ [ 285.7, 297.9 ] ], "carriageway": { "stations": 221, "stations_resolved": 221, "width_median_m": 6.25, "width_p10_m": 5.0, "width_min_m": 0.5, "width_max_m": 11.5, "bounded_share": 0.543, "unbounded_share": 0.457, "confidence_median": 0.557, "width_median_bounded_m": 6.38, "window_m": [ 967.0, 992.0 ], "width_at_max25_m": 6.5, "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": 221, "stations_resolved": 221, "width_median_m": 8.0, "width_p10_m": 6.0, "width_min_m": 0.5, "width_max_m": 12.0, "bounded_share": 0.86, "unbounded_share": 0.14, "confidence_median": 1.0, "width_median_bounded_m": 7.75, "window_m": [ 967.0, 992.0 ], "width_at_max25_m": 6.25, "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": "Florac Trois Rivi\u00e8res", "county": "Loz\u00e8re", "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)" } }