{ "ocl_version": "0.1.0", "name": "Avenue des Tortues", "slug": "avenue-des-tortues", "confidence": "A", "reported_claims": [], "ladder": [ { "window_m": 2.0, "max_gradient_pct": 29.112241623332125, "diagnostic": true, "flags": [], "start_distance_m": 422.0, "end_distance_m": 424.0, "start_elevation_m": 83.80905915232661, "end_elevation_m": 84.39130398479325, "min_gradient_pct": -18.975667053491918 }, { "window_m": 3.0, "max_gradient_pct": 28.006501194946527, "diagnostic": true, "flags": [], "start_distance_m": 422.0, "end_distance_m": 425.0, "start_elevation_m": 83.80905915232661, "end_elevation_m": 84.64925418817501, "min_gradient_pct": -16.223203628008303 }, { "window_m": 5.0, "max_gradient_pct": 26.76369597620038, "diagnostic": false, "flags": [], "start_distance_m": 421.0, "end_distance_m": 426.0, "start_elevation_m": 83.56141932597437, "end_elevation_m": 84.89960412478439, "min_gradient_pct": -16.41725692991173 }, { "window_m": 10.0, "max_gradient_pct": 25.60336206575215, "diagnostic": false, "flags": [], "start_distance_m": 422.0, "end_distance_m": 432.0, "start_elevation_m": 83.80905915232661, "end_elevation_m": 86.36939535890183, "min_gradient_pct": -13.899868962412825 }, { "window_m": 20.0, "max_gradient_pct": 24.814697824186425, "diagnostic": false, "flags": [], "start_distance_m": 418.0, "end_distance_m": 438.0, "start_elevation_m": 82.87372520335744, "end_elevation_m": 87.83666476819472, "min_gradient_pct": -11.761731467108305 }, { "window_m": 25.0, "max_gradient_pct": 24.211275095958346, "diagnostic": false, "flags": [], "start_distance_m": 418.0, "end_distance_m": 443.0, "start_elevation_m": 82.87372520335744, "end_elevation_m": 88.92654397734702, "min_gradient_pct": -10.24098708501782 }, { "window_m": 50.0, "max_gradient_pct": 20.891920596348683, "diagnostic": false, "flags": [], "start_distance_m": 413.0, "end_distance_m": 463.0, "start_elevation_m": 81.95375534366924, "end_elevation_m": 92.39971564184358, "min_gradient_pct": -4.330278970265255 }, { "window_m": 100.0, "max_gradient_pct": 15.65380553169149, "diagnostic": false, "flags": [], "start_distance_m": 400.0, "end_distance_m": 500.0, "start_elevation_m": 80.83859374036953, "end_elevation_m": 96.49239927206102, "min_gradient_pct": 1.540017976009878 } ], "shape": { "ascent_concentration": 0.431, "concentration_window_frac": 0.25, "longest_pitch_10pct_m": 91.0, "shape_class": "sustained" }, "length_m": 567.7667349925831, "start_elevation_m": 56.58198479097711, "end_elevation_m": 95.40118393495216, "endpoint_gain_m": 38.81919914397505, "overall_gradient_pct": 6.837173922223913, "accumulated_ascent_m": 41.64393758770328, "window_maxima": { "max_5m": { "gradient_pct": 26.76369597620038, "start_distance_m": 421.0, "end_distance_m": 426.0, "midpoint_distance_m": 423.5, "start_elevation_m": 83.56141932597437, "end_elevation_m": 84.89960412478439, "start_xy": [ 978149.147814564, 6265548.998595955 ], "end_xy": [ 978153.7274305619, 6265551.005363831 ] }, "max_10m": { "gradient_pct": 25.60336206575215, "start_distance_m": 422.0, "end_distance_m": 432.0, "midpoint_distance_m": 427.0, "start_elevation_m": 83.80905915232661, "end_elevation_m": 86.36939535890183, "start_xy": [ 978150.0637377637, 6265549.39994953 ], "end_xy": [ 978157.5183605476, 6265555.03463436 ] }, "max_20m": { "gradient_pct": 24.814697824186425, "start_distance_m": 418.0, "end_distance_m": 438.0, "midpoint_distance_m": 428.0, "start_elevation_m": 82.87372520335744, "end_elevation_m": 87.83666476819472, "start_xy": [ 978146.4000449654, 6265547.794535228 ], "end_xy": [ 978159.6478025361, 6265560.644044028 ] }, "max_25m": { "gradient_pct": 24.211275095958346, "start_distance_m": 418.0, "end_distance_m": 443.0, "midpoint_distance_m": 430.5, "start_elevation_m": 82.87372520335744, "end_elevation_m": 88.92654397734702, "start_xy": [ 978146.4000449654, 6265547.794535228 ], "end_xy": [ 978161.4223375267, 6265565.318552084 ] }, "max_50m": { "gradient_pct": 20.891920596348683, "start_distance_m": 413.0, "end_distance_m": 463.0, "midpoint_distance_m": 438.0, "start_elevation_m": 81.95375534366924, "end_elevation_m": 92.39971564184358, "start_xy": [ 978141.8204289676, 6265545.787767351 ], "end_xy": [ 978167.8713818274, 6265584.245208961 ] }, "max_100m": { "gradient_pct": 15.65380553169149, "start_distance_m": 400.0, "end_distance_m": 500.0, "midpoint_distance_m": 450.0, "start_elevation_m": 80.83859374036953, "end_elevation_m": 96.49239927206102, "start_xy": [ 978130.723477968, 6265551.893168445 ], "end_xy": [ 978185.1997363868, 6265616.538851345 ] } }, "window_minima": { "min_5m": { "gradient_pct": -16.41725692991173, "start_distance_m": 540.0, "end_distance_m": 545.0, "midpoint_distance_m": 542.5, "start_elevation_m": 96.68268005331767, "end_elevation_m": 95.86181720682208, "start_xy": [ 978216.7027058306, 6265640.905433343 ], "end_xy": [ 978220.928183231, 6265643.57851036 ] }, "min_10m": { "gradient_pct": -13.899868962412825, "start_distance_m": 535.0, "end_distance_m": 545.0, "midpoint_distance_m": 540.0, "start_elevation_m": 97.25180410306336, "end_elevation_m": 95.86181720682208, "start_xy": [ 978212.4772284301, 6265638.232356326 ], "end_xy": [ 978220.928183231, 6265643.57851036 ] }, "min_20m": { "gradient_pct": -11.761731467108305, "start_distance_m": 533.0, "end_distance_m": 553.0, "midpoint_distance_m": 543.0, "start_elevation_m": 97.39858721262524, "end_elevation_m": 95.04624091920358, "start_xy": [ 978210.7870374699, 6265637.16312552 ], "end_xy": [ 978227.6889470718, 6265647.855433587 ] }, "min_25m": { "gradient_pct": -10.24098708501782, "start_distance_m": 528.0, "end_distance_m": 553.0, "midpoint_distance_m": 540.5, "start_elevation_m": 97.60648769045804, "end_elevation_m": 95.04624091920358, "start_xy": [ 978206.5615600694, 6265634.490048503 ], "end_xy": [ 978227.6889470718, 6265647.855433587 ] }, "min_50m": { "gradient_pct": -4.330278970265255, "start_distance_m": 515.0, "end_distance_m": 565.0, "midpoint_distance_m": 540.0, "start_elevation_m": 97.47765686842773, "end_elevation_m": 95.3125173832951, "start_xy": [ 978196.1720276134, 6265626.766696926 ], "end_xy": [ 978239.0384043881, 6265650.8807807565 ] }, "min_100m": { "gradient_pct": 1.540017976009878, "start_distance_m": 34.0, "end_distance_m": 134.0, "midpoint_distance_m": 84.0, "start_elevation_m": 57.40335034977869, "end_elevation_m": 58.94336832578857, "start_xy": [ 978038.6428565537, 6265430.593722125 ], "end_xy": [ 978009.3572525511, 6265500.808307976 ] } }, "diagnostic_window_maxima": { "max_2m": { "gradient_pct": 29.112241623332125, "start_distance_m": 422.0, "end_distance_m": 424.0, "midpoint_distance_m": 423.0, "start_elevation_m": 83.80905915232661, "end_elevation_m": 84.39130398479325, "start_xy": [ 978150.0637377637, 6265549.39994953 ], "end_xy": [ 978151.8955841628, 6265550.202656681 ] }, "max_3m": { "gradient_pct": 28.006501194946527, "start_distance_m": 422.0, "end_distance_m": 425.0, "midpoint_distance_m": 423.5, "start_elevation_m": 83.80905915232661, "end_elevation_m": 84.64925418817501, "start_xy": [ 978150.0637377637, 6265549.39994953 ], "end_xy": [ 978152.8115073623, 6265550.604010256 ] } }, "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": 0.037, "windows_resited": [], "windows_unresolved": [], "minima_resited": [], "minima_unresolved": [] }, "overhead_obstruction": { "obstruction_threshold_m": 2.0, "obstructed_fraction": 0.046, "obstruction_max_height_m": 11.8, "flagged_windows_m": [] }, "excluded_ranges_m": [ [ 0.0, 20.0 ] ], "review": [], "extent": [ "descends_at_end" ] }, "provenance": { "analysis_version": "0.1.0", "run_manifest": { "manifest_version": "1", "code_git_sha": "41205ec4649bb0a4093af76ff34281a5d9a13832", "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-pr7", "road_pbf": "block-batch-fr-pr7.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:ba95a0bf562c86eb" }, "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_E977-N6265_0m5@22LHD6QQ-2025-03-24.tif", "data/cache/fr/ign-lidarhd_dtm_E978-N6265_0m5@22LHD6QQ-2025-03-24.tif" ], "calculated_at": "2026-09-25T09:07:37+00:00", "road_source": "OpenStreetMap (local PBF extract)", "road_attribution": "\u00a9 OpenStreetMap contributors, ODbL", "osm_pbf_path": "data/cache/pbf/block-batch-fr-pr7.osm.pbf", "osm_snapshot": "", "run_id": "fr-pr7", "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": [ "E977-N6265", "E978-N6265" ], "elevation_blocks": [ "22LHD6QQ@2025-03-24" ], "ign_dalles": [ "LHD_FXX_0977_6266_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0978_6266_MNT_O_0M50_LAMB93_IGN69" ], "ign_missions": [ "22LHD6QQ" ], "ign_editions": [ "2025-03-24" ], "ign_dsm_edition": { "LHD_FXX_0977_6266_MNT_O_0M50_LAMB93_IGN69": "2025-03-24", "LHD_FXX_0978_6266_MNT_O_0M50_LAMB93_IGN69": "2025-03-24" }, "climb_origin": "discovered", "structure_own_ways": 2, "structure_mask_ranges_m": [ [ 0.0, 15.0 ] ], "carriageway": { "stations": 29, "stations_resolved": 29, "width_median_m": 7.0, "width_p10_m": 5.45, "width_min_m": 2.5, "width_max_m": 10.25, "bounded_share": 0.276, "unbounded_share": 0.724, "confidence_median": 0.0, "width_median_bounded_m": 7.25, "window_m": [ 418.0, 443.0 ], "width_at_max25_m": 5.5, "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": 29, "stations_resolved": 29, "width_median_m": 7.5, "width_p10_m": 4.25, "width_min_m": 0.5, "width_max_m": 11.25, "bounded_share": 0.724, "unbounded_share": 0.276, "confidence_median": 1.0, "width_median_bounded_m": 6.75, "window_m": [ 418.0, 443.0 ], "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": "Vidauban", "county": "Var", "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)" } }