{ "ocl_version": "0.1.0", "name": "Strada di Capaneddu", "slug": "strada-di-capaneddu", "confidence": "B", "reported_claims": [], "ladder": [ { "window_m": 2.0, "max_gradient_pct": 34.79425707869268, "diagnostic": true, "flags": [ "structure_excluded", "structure_excluded_min", "texture_excluded", "texture_excluded_min", "canopy_or_structure" ], "start_distance_m": 1006.0, "end_distance_m": 1008.0, "start_elevation_m": 645.2875190485006, "end_elevation_m": 645.9834041900745, "min_gradient_pct": -25.88304758629647, "suppressed_max_gradient_pct": 78.07849347253182, "suppressed_location_m": [ 782.0, 784.0 ], "suppressed_min_gradient_pct": -160.7935361603154, "suppressed_min_location_m": [ 779.0, 781.0 ] }, { "window_m": 3.0, "max_gradient_pct": 27.59109926854535, "diagnostic": true, "flags": [ "structure_excluded", "structure_excluded_min", "texture_excluded", "texture_excluded_min", "canopy_or_structure" ], "start_distance_m": 1006.0, "end_distance_m": 1009.0, "start_elevation_m": 645.2875190485006, "end_elevation_m": 646.115252026557, "min_gradient_pct": -22.769234904759134, "suppressed_max_gradient_pct": 75.52882091014226, "suppressed_location_m": [ 782.0, 785.0 ], "suppressed_min_gradient_pct": -106.33858781609813, "suppressed_min_location_m": [ 778.0, 781.0 ] }, { "window_m": 5.0, "max_gradient_pct": 25.098949987279866, "diagnostic": false, "flags": [ "structure_excluded", "structure_excluded_min", "texture_excluded", "texture_excluded_min" ], "start_distance_m": 473.0, "end_distance_m": 478.0, "start_elevation_m": 622.940864094423, "end_elevation_m": 624.195811593787, "min_gradient_pct": -14.736424232760328, "suppressed_max_gradient_pct": 63.51722925409149, "suppressed_location_m": [ 782.0, 787.0 ], "suppressed_min_gradient_pct": -62.231361067101716, "suppressed_min_location_m": [ 776.0, 781.0 ] }, { "window_m": 10.0, "max_gradient_pct": 24.275794515278903, "diagnostic": false, "flags": [ "structure_excluded_min", "texture_excluded", "texture_excluded_min" ], "start_distance_m": 470.0, "end_distance_m": 480.0, "start_elevation_m": 622.2240884108066, "end_elevation_m": 624.6516678623345, "min_gradient_pct": -5.490633193159056, "suppressed_max_gradient_pct": 36.530695019856694, "suppressed_location_m": [ 97.0, 107.0 ], "suppressed_min_gradient_pct": -30.315824281846062, "suppressed_min_location_m": [ 771.0, 781.0 ] }, { "window_m": 20.0, "max_gradient_pct": 21.657398861090087, "diagnostic": false, "flags": [ "structure_excluded_min", "texture_excluded" ], "start_distance_m": 471.0, "end_distance_m": 491.0, "start_elevation_m": 622.4552892847412, "end_elevation_m": 626.7867690569592, "min_gradient_pct": -1.2474125168961336, "suppressed_max_gradient_pct": 24.213402453056005, "suppressed_location_m": [ 87.0, 107.0 ], "suppressed_min_gradient_pct": -13.499856082155475, "suppressed_min_location_m": [ 761.0, 781.0 ] }, { "window_m": 25.0, "max_gradient_pct": 22.088130499216277, "diagnostic": false, "flags": [ "structure_excluded_min" ], "start_distance_m": 470.0, "end_distance_m": 495.0, "start_elevation_m": 622.2240884108066, "end_elevation_m": 627.7461210356107, "min_gradient_pct": -0.6205803226939679, "suppressed_min_gradient_pct": -9.950331086983624, "suppressed_min_location_m": [ 756.0, 781.0 ] }, { "window_m": 50.0, "max_gradient_pct": 19.52013763063792, "diagnostic": false, "flags": [ "structure_excluded_min" ], "start_distance_m": 447.0, "end_distance_m": 497.0, "start_elevation_m": 618.385384494396, "end_elevation_m": 628.145453309715, "min_gradient_pct": 1.0549221486319311, "suppressed_min_gradient_pct": -3.2109671147484278, "suppressed_min_location_m": [ 731.0, 781.0 ] }, { "window_m": 100.0, "max_gradient_pct": 15.174876527381684, "diagnostic": false, "flags": [ "structure_excluded_min" ], "start_distance_m": 418.0, "end_distance_m": 518.0, "start_elevation_m": 613.7338721014576, "end_elevation_m": 628.9087486288392, "min_gradient_pct": 2.070006188869229, "suppressed_min_gradient_pct": 0.2566782839963935, "suppressed_min_location_m": [ 681.0, 781.0 ] } ], "shape": { "ascent_concentration": 0.471, "concentration_window_frac": 0.25, "longest_pitch_10pct_m": 109.0, "shape_class": "stepped" }, "length_m": 1619.5828893594207, "start_elevation_m": 579.57750241197, "end_elevation_m": 668.098966408445, "endpoint_gain_m": 88.52146399647495, "overall_gradient_pct": 5.465695184732846, "accumulated_ascent_m": 97.77664941099567, "window_maxima": { "max_5m": { "gradient_pct": 25.098949987279866, "start_distance_m": 473.0, "end_distance_m": 478.0, "midpoint_distance_m": 475.5, "start_elevation_m": 622.940864094423, "end_elevation_m": 624.195811593787, "start_xy": [ 1195678.5635976286, 6115935.81462827 ], "end_xy": [ 1195683.5493364644, 6115936.191998435 ] }, "max_10m": { "gradient_pct": 24.275794515278903, "start_distance_m": 470.0, "end_distance_m": 480.0, "midpoint_distance_m": 475.0, "start_elevation_m": 622.2240884108066, "end_elevation_m": 624.6516678623345, "start_xy": [ 1195675.5721678576, 6115935.588027465 ], "end_xy": [ 1195685.521500725, 6115936.512891741 ] }, "max_20m": { "gradient_pct": 21.657398861090087, "start_distance_m": 471.0, "end_distance_m": 491.0, "midpoint_distance_m": 481.0, "start_elevation_m": 622.4552892847412, "end_elevation_m": 626.7867690569592, "start_xy": [ 1195676.5693111145, 6115935.663561068 ], "end_xy": [ 1195686.6207958993, 6115944.354853329 ] }, "max_25m": { "gradient_pct": 22.088130499216277, "start_distance_m": 470.0, "end_distance_m": 495.0, "midpoint_distance_m": 482.5, "start_elevation_m": 622.2240884108066, "end_elevation_m": 627.7461210356107, "start_xy": [ 1195675.5721678576, 6115935.588027465 ], "end_xy": [ 1195684.2803652505, 6115947.4664905835 ] }, "max_50m": { "gradient_pct": 19.52013763063792, "start_distance_m": 447.0, "end_distance_m": 497.0, "midpoint_distance_m": 472.0, "start_elevation_m": 618.385384494396, "end_elevation_m": 628.145453309715, "start_xy": [ 1195655.8307913698, 6115925.29589659 ], "end_xy": [ 1195684.3619219624, 6115949.464827017 ] }, "max_100m": { "gradient_pct": 15.174876527381684, "start_distance_m": 418.0, "end_distance_m": 518.0, "midpoint_distance_m": 468.0, "start_elevation_m": 613.7338721014576, "end_elevation_m": 628.9087486288392, "start_xy": [ 1195631.965137948, 6115912.453957926 ], "end_xy": [ 1195699.7626472767, 6115942.219952482 ] } }, "window_minima": { "min_5m": { "gradient_pct": -14.736424232760328, "start_distance_m": 940.0, "end_distance_m": 945.0, "midpoint_distance_m": 942.5, "start_elevation_m": 644.2911056190375, "end_elevation_m": 643.5542844073995, "start_xy": [ 1196060.6719555298, 6116060.160744335 ], "end_xy": [ 1196065.2450105688, 6116058.139069878 ] }, "min_10m": { "gradient_pct": -5.490633193159056, "start_distance_m": 940.0, "end_distance_m": 950.0, "midpoint_distance_m": 945.0, "start_elevation_m": 644.2911056190375, "end_elevation_m": 643.7420422997216, "start_xy": [ 1196060.6719555298, 6116060.160744335 ], "end_xy": [ 1196069.8180656077, 6116056.117395421 ] }, "min_20m": { "gradient_pct": -1.2474125168961336, "start_distance_m": 940.0, "end_distance_m": 960.0, "midpoint_distance_m": 950.0, "start_elevation_m": 644.2911056190375, "end_elevation_m": 644.0416231156582, "start_xy": [ 1196060.6719555298, 6116060.160744335 ], "end_xy": [ 1196078.9641756855, 6116052.074046506 ] }, "min_25m": { "gradient_pct": -0.6205803226939679, "start_distance_m": 940.0, "end_distance_m": 965.0, "midpoint_distance_m": 952.5, "start_elevation_m": 644.2911056190375, "end_elevation_m": 644.135960538364, "start_xy": [ 1196060.6719555298, 6116060.160744335 ], "end_xy": [ 1196083.5372307245, 6116050.052372049 ] }, "min_50m": { "gradient_pct": 1.0549221486319311, "start_distance_m": 817.0, "end_distance_m": 867.0, "midpoint_distance_m": 842.0, "start_elevation_m": 639.4563094989254, "end_elevation_m": 639.9837705732414, "start_xy": [ 1195950.0262242767, 6116031.903720853 ], "end_xy": [ 1195996.5480908812, 6116039.551560642 ] }, "min_100m": { "gradient_pct": 2.070006188869229, "start_distance_m": 1065.0, "end_distance_m": 1165.0, "midpoint_distance_m": 1115.0, "start_elevation_m": 648.7564539805169, "end_elevation_m": 650.8264601693861, "start_xy": [ 1196160.681493817, 6116010.895305661 ], "end_xy": [ 1196255.2349610846, 6116030.816158637 ] } }, "diagnostic_window_maxima": { "max_2m": { "gradient_pct": 34.79425707869268, "start_distance_m": 1006.0, "end_distance_m": 1008.0, "midpoint_distance_m": 1007.0, "start_elevation_m": 645.2875190485006, "end_elevation_m": 645.9834041900745, "start_xy": [ 1196109.750762462, 6116020.678177508 ], "end_xy": [ 1196110.59891764, 6116018.866925787 ] }, "max_3m": { "gradient_pct": 27.59109926854535, "start_distance_m": 1006.0, "end_distance_m": 1009.0, "midpoint_distance_m": 1007.5, "start_elevation_m": 645.2875190485006, "end_elevation_m": 646.115252026557, "start_xy": [ 1196109.750762462, 6116020.678177508 ], "end_xy": [ 1196111.022995229, 6116017.961299928 ] } }, "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": 0.025, "windows_resited": [ 2.0, 3.0, 5.0 ], "windows_unresolved": [], "minima_resited": [ 2.0, 3.0, 5.0, 10.0, 20.0, 25.0, 50.0, 100.0 ], "minima_unresolved": [] }, "texture_suppression": { "masked_fraction": 0.04, "windows_resited": [ 2.0, 3.0, 5.0, 10.0, 20.0 ], "windows_unresolved": [], "minima_resited": [ 2.0, 3.0, 5.0, 10.0 ], "minima_unresolved": [] }, "texture_windows": { "rounds": 1, "windows_masked": [ { "window_m": 20.0, "start_m": 87.0, "end_m": 107.0, "raw_pct": 24.21, "reason": "hump" }, { "window_m": 10.0, "start_m": 97.0, "end_m": 107.0, "raw_pct": 36.53, "reason": "hump+short-step" }, { "window_m": 5.0, "start_m": 100.0, "end_m": 105.0, "raw_pct": 48.58, "reason": "hump+short-step" } ], "advisory": [], "unresolved": [] }, "overhead_obstruction": { "obstruction_threshold_m": 2.0, "obstructed_fraction": 0.323, "obstruction_max_height_m": 26.36, "flagged_windows_m": [ 2, 3 ] }, "excluded_ranges_m": [ [ 85.0, 109.0 ], [ 774.0, 792.0 ], [ 1599.0, 1619.0 ] ], "review": [], "extent": [] }, "provenance": { "analysis_version": "0.1.0", "run_manifest": { "manifest_version": "1", "code_git_sha": "33abfff569d4360542e616d0d42c1b94d0a711fa", "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-co2", "road_pbf": "block-batch-fr-co2.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": "sha256:2a717d675f2607cc" }, "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_E1195-N6115_0m5@21LHDCorseUT-2025-04-02.tif", "data/cache/fr/ign-lidarhd_dtm_E1195-N6116_0m5@21LHDCorseUT-2025-04-02.tif", "data/cache/fr/ign-lidarhd_dtm_E1196-N6115_0m5@21LHDCorseUT-2025-04-02.tif", "data/cache/fr/ign-lidarhd_dtm_E1196-N6116_0m5@21LHDCorseUT-2025-04-02.tif" ], "calculated_at": "2026-09-25T00:41:20+00:00", "road_source": "OpenStreetMap (local PBF extract)", "road_attribution": "\u00a9 OpenStreetMap contributors, ODbL", "osm_pbf_path": "data/cache/pbf/block-batch-fr-co2.osm.pbf", "osm_snapshot": "", "run_id": "fr-co2", "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": [ "E1195-N6115", "E1195-N6116", "E1196-N6115", "E1196-N6116" ], "elevation_blocks": [ "21LHDCorseUT@2025-04-02" ], "ign_dalles": [ "LHD_FXX_1195_6116_MNT_O_0M50_LAMB93_IGN78", "LHD_FXX_1195_6117_MNT_O_0M50_LAMB93_IGN78", "LHD_FXX_1196_6116_MNT_O_0M50_LAMB93_IGN78", "LHD_FXX_1196_6117_MNT_O_0M50_LAMB93_IGN78" ], "ign_missions": [ "21LHDCorseUT" ], "ign_editions": [ "2025-04-02" ], "ign_dsm_edition": { "LHD_FXX_1195_6116_MNT_O_0M50_LAMB93_IGN78": "2025-04-02", "LHD_FXX_1195_6117_MNT_O_0M50_LAMB93_IGN78": "2025-04-02", "LHD_FXX_1196_6116_MNT_O_0M50_LAMB93_IGN78": "2025-04-02", "LHD_FXX_1196_6117_MNT_O_0M50_LAMB93_IGN78": "2025-04-02" }, "climb_origin": "discovered", "structure_own_ways": 5, "structure_mask_ranges_m": [ [ 1604.6, 1634.6 ] ], "carriageway": { "stations": 70, "stations_resolved": 70, "width_median_m": 5.0, "width_p10_m": 3.25, "width_min_m": 1.0, "width_max_m": 9.0, "bounded_share": 0.657, "unbounded_share": 0.343, "confidence_median": 0.649, "width_median_bounded_m": 4.88, "window_m": [ 470.0, 495.0 ], "width_at_max25_m": 4.5, "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": 70, "stations_resolved": 70, "width_median_m": 3.5, "width_p10_m": 0.98, "width_min_m": 0.0, "width_max_m": 10.25, "bounded_share": 0.9, "unbounded_share": 0.1, "confidence_median": 1.0, "width_median_bounded_m": 3.5, "window_m": [ 470.0, 495.0 ], "width_at_max25_m": 8.38, "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": "Tolla", "county": "Corse-du-Sud", "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)" } }