{ "ocl_version": "0.1.0", "name": "Strada di i Tinenti", "slug": "strada-di-i-tinenti", "confidence": "B", "reported_claims": [], "ladder": [ { "window_m": 2.0, "max_gradient_pct": 26.133307035526343, "diagnostic": true, "flags": [], "start_distance_m": 298.0, "end_distance_m": 300.0, "start_elevation_m": 141.5031292885871, "end_elevation_m": 142.02579542929763, "min_gradient_pct": 0.22047385817955956 }, { "window_m": 3.0, "max_gradient_pct": 25.141440368415147, "diagnostic": true, "flags": [], "start_distance_m": 299.0, "end_distance_m": 302.0, "start_elevation_m": 141.75190966160514, "end_elevation_m": 142.5061528726576, "min_gradient_pct": 0.7556957754175642 }, { "window_m": 5.0, "max_gradient_pct": 24.955607913271933, "diagnostic": false, "flags": [], "start_distance_m": 298.0, "end_distance_m": 303.0, "start_elevation_m": 141.5031292885871, "end_elevation_m": 142.7509096842507, "min_gradient_pct": 1.019579084656641 }, { "window_m": 10.0, "max_gradient_pct": 23.845029518641354, "diagnostic": false, "flags": [], "start_distance_m": 298.0, "end_distance_m": 308.0, "start_elevation_m": 141.5031292885871, "end_elevation_m": 143.88763224045124, "min_gradient_pct": 1.8859813975463169 }, { "window_m": 20.0, "max_gradient_pct": 22.484500328899202, "diagnostic": false, "flags": [], "start_distance_m": 290.0, "end_distance_m": 310.0, "start_elevation_m": 139.8212366113349, "end_elevation_m": 144.31813667711475, "min_gradient_pct": 2.7415680372512696 }, { "window_m": 25.0, "max_gradient_pct": 21.9723943056631, "diagnostic": false, "flags": [ "canopy_or_structure" ], "start_distance_m": 285.0, "end_distance_m": 310.0, "start_elevation_m": 138.82503810069898, "end_elevation_m": 144.31813667711475, "min_gradient_pct": 3.031988035882989 }, { "window_m": 50.0, "max_gradient_pct": 20.558860481755172, "diagnostic": false, "flags": [], "start_distance_m": 267.0, "end_distance_m": 317.0, "start_elevation_m": 135.2994146084359, "end_elevation_m": 145.5788448493135, "min_gradient_pct": 5.150611694454 }, { "window_m": 100.0, "max_gradient_pct": 18.06811922185068, "diagnostic": false, "flags": [], "start_distance_m": 250.0, "end_distance_m": 350.0, "start_elevation_m": 132.48641425821762, "end_elevation_m": 150.5545334800683, "min_gradient_pct": 7.399109156443387 } ], "shape": { "ascent_concentration": 0.391, "concentration_window_frac": 0.25, "longest_pitch_10pct_m": 121.0, "shape_class": "sustained" }, "length_m": 350.47341615591415, "start_elevation_m": 108.70490792571073, "end_elevation_m": 150.64655422973172, "endpoint_gain_m": 41.94164630402099, "overall_gradient_pct": 11.967140550643798, "accumulated_ascent_m": 41.951984587036605, "window_maxima": { "max_5m": { "gradient_pct": 24.955607913271933, "start_distance_m": 298.0, "end_distance_m": 303.0, "midpoint_distance_m": 300.5, "start_elevation_m": 141.5031292885871, "end_elevation_m": 142.7509096842507, "start_xy": [ 1185007.7020331668, 6110594.606469337 ], "end_xy": [ 1185012.241113459, 6110592.576631537 ] }, "max_10m": { "gradient_pct": 23.845029518641354, "start_distance_m": 298.0, "end_distance_m": 308.0, "midpoint_distance_m": 303.0, "start_elevation_m": 141.5031292885871, "end_elevation_m": 143.88763224045124, "start_xy": [ 1185007.7020331668, 6110594.606469337 ], "end_xy": [ 1185017.2288246225, 6110592.226292631 ] }, "max_20m": { "gradient_pct": 22.484500328899202, "start_distance_m": 290.0, "end_distance_m": 310.0, "midpoint_distance_m": 300.0, "start_elevation_m": 139.8212366113349, "end_elevation_m": 144.31813667711475, "start_xy": [ 1185000.5051835158, 6110598.100085672 ], "end_xy": [ 1185019.223909088, 6110592.086157068 ] }, "max_25m": { "gradient_pct": 21.9723943056631, "start_distance_m": 285.0, "end_distance_m": 310.0, "midpoint_distance_m": 297.5, "start_elevation_m": 138.82503810069898, "end_elevation_m": 144.31813667711475, "start_xy": [ 1184996.8261441533, 6110601.437515913 ], "end_xy": [ 1185019.223909088, 6110592.086157068 ] }, "max_50m": { "gradient_pct": 20.558860481755172, "start_distance_m": 267.0, "end_distance_m": 317.0, "midpoint_distance_m": 292.0, "start_elevation_m": 135.2994146084359, "end_elevation_m": 145.5788448493135, "start_xy": [ 1184986.9404580274, 6110616.338530741 ], "end_xy": [ 1185026.206704717, 6110591.5956826 ] }, "max_100m": { "gradient_pct": 18.06811922185068, "start_distance_m": 250.0, "end_distance_m": 350.0, "midpoint_distance_m": 300.0, "start_elevation_m": 132.48641425821762, "end_elevation_m": 150.5545334800683, "start_xy": [ 1184978.4779303167, 6110631.08253375 ], "end_xy": [ 1185055.5914856247, 6110579.335410072 ] } }, "window_minima": { "min_5m": { "gradient_pct": 1.019579084656641, "start_distance_m": 164.0, "end_distance_m": 169.0, "midpoint_distance_m": 166.5, "start_elevation_m": 125.97549639772218, "end_elevation_m": 126.02647535195501, "start_xy": [ 1184909.6549952321, 6110673.56535935 ], "end_xy": [ 1184913.0437899893, 6110669.923476971 ] }, "min_10m": { "gradient_pct": 1.8859813975463169, "start_distance_m": 164.0, "end_distance_m": 174.0, "midpoint_distance_m": 169.0, "start_elevation_m": 125.97549639772218, "end_elevation_m": 126.16409453747681, "start_xy": [ 1184909.6549952321, 6110673.56535935 ], "end_xy": [ 1184916.1490083865, 6110666.0045971945 ] }, "min_20m": { "gradient_pct": 2.7415680372512696, "start_distance_m": 164.0, "end_distance_m": 184.0, "midpoint_distance_m": 174.0, "start_elevation_m": 125.97549639772218, "end_elevation_m": 126.52381000517244, "start_xy": [ 1184909.6549952321, 6110673.56535935 ], "end_xy": [ 1184922.3594451812, 6110658.166837641 ] }, "min_25m": { "gradient_pct": 3.031988035882989, "start_distance_m": 164.0, "end_distance_m": 189.0, "midpoint_distance_m": 176.5, "start_elevation_m": 125.97549639772218, "end_elevation_m": 126.73349340669293, "start_xy": [ 1184909.6549952321, 6110673.56535935 ], "end_xy": [ 1184925.4646635784, 6110654.247957864 ] }, "min_50m": { "gradient_pct": 5.150611694454, "start_distance_m": 161.0, "end_distance_m": 211.0, "midpoint_distance_m": 186.0, "start_elevation_m": 125.81454894962037, "end_elevation_m": 128.38985479684737, "start_xy": [ 1184907.348040849, 6110675.483160558 ], "end_xy": [ 1184945.534801411, 6110647.249081981 ] }, "min_100m": { "gradient_pct": 7.399109156443387, "start_distance_m": 134.0, "end_distance_m": 234.0, "midpoint_distance_m": 184.0, "start_elevation_m": 123.00469808010544, "end_elevation_m": 130.40380723654883, "start_xy": [ 1184897.8190585086, 6110699.5715907235 ], "end_xy": [ 1184967.712810894, 6110642.766681869 ] } }, "diagnostic_window_maxima": { "max_2m": { "gradient_pct": 26.133307035526343, "start_distance_m": 298.0, "end_distance_m": 300.0, "midpoint_distance_m": 299.0, "start_elevation_m": 141.5031292885871, "end_elevation_m": 142.02579542929763, "start_xy": [ 1185007.7020331668, 6110594.606469337 ], "end_xy": [ 1185009.5012455794, 6110593.733065252 ] }, "max_3m": { "gradient_pct": 25.141440368415147, "start_distance_m": 299.0, "end_distance_m": 302.0, "midpoint_distance_m": 300.5, "start_elevation_m": 141.75190966160514, "end_elevation_m": 142.5061528726576, "start_xy": [ 1185008.6016393732, 6110594.169767294 ], "end_xy": [ 1185011.3004579924, 6110592.859661168 ] } }, "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": 0.094, "obstruction_max_height_m": 9.85, "flagged_windows_m": [ 25 ] }, "review": [], "extent": [ "may_start_earlier", "may_continue_beyond_end" ] }, "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-co1", "road_pbf": "block-batch-fr-co1.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_E1184-N6110_0m5@21LHDCorseUT-2025-04-02.tif", "data/cache/fr/ign-lidarhd_dtm_E1185-N6110_0m5@21LHDCorseUT-2025-04-02.tif" ], "calculated_at": "2026-09-25T00:21:23+00:00", "road_source": "OpenStreetMap (local PBF extract)", "road_attribution": "\u00a9 OpenStreetMap contributors, ODbL", "osm_pbf_path": "data/cache/pbf/block-batch-fr-co1.osm.pbf", "osm_snapshot": "", "run_id": "fr-co1", "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": [ "E1184-N6110", "E1185-N6110" ], "elevation_blocks": [ "21LHDCorseUT@2025-04-02" ], "ign_dalles": [ "LHD_FXX_1184_6111_MNT_O_0M50_LAMB93_IGN78", "LHD_FXX_1185_6111_MNT_O_0M50_LAMB93_IGN78" ], "ign_missions": [ "21LHDCorseUT" ], "ign_editions": [ "2025-04-02" ], "ign_dsm_edition": { "LHD_FXX_1184_6111_MNT_O_0M50_LAMB93_IGN78": "2025-04-02", "LHD_FXX_1185_6111_MNT_O_0M50_LAMB93_IGN78": "2025-04-02" }, "climb_origin": "discovered", "structure_own_ways": 2, "carriageway": { "stations": 20, "stations_resolved": 20, "width_median_m": 5.88, "width_p10_m": 4.47, "width_min_m": 3.75, "width_max_m": 12.0, "bounded_share": 0.4, "unbounded_share": 0.6, "confidence_median": 0.0, "width_median_bounded_m": 5.38, "window_m": [ 285.0, 310.0 ], "width_at_max25_m": 5.0, "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": 20, "stations_resolved": 20, "width_median_m": 5.12, "width_p10_m": 1.95, "width_min_m": 0.5, "width_max_m": 12.0, "bounded_share": 0.7, "unbounded_share": 0.3, "confidence_median": 1.0, "width_median_bounded_m": 4.5, "window_m": [ 285.0, 310.0 ], "width_at_max25_m": 2.88, "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": "Bastelicaccia", "county": "Corse-du-Sud", "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)" } }