{ "ocl_version": "0.1.0", "name": "Chemin de Morgiou", "slug": "chemin-de-morgiou-2", "confidence": "A", "reported_claims": [], "ladder": [ { "window_m": 2.0, "max_gradient_pct": 25.103891877917306, "diagnostic": true, "flags": [], "start_distance_m": 595.0, "end_distance_m": 597.0, "start_elevation_m": 153.65320916935858, "end_elevation_m": 154.15528700691692, "min_gradient_pct": -3.1107596160566686 }, { "window_m": 3.0, "max_gradient_pct": 24.655957827152026, "diagnostic": true, "flags": [], "start_distance_m": 892.0, "end_distance_m": 895.0, "start_elevation_m": 190.23959763759544, "end_elevation_m": 190.97927637241, "min_gradient_pct": -2.997273494536993 }, { "window_m": 5.0, "max_gradient_pct": 23.65738190930699, "diagnostic": false, "flags": [], "start_distance_m": 594.0, "end_distance_m": 599.0, "start_elevation_m": 153.42450433890326, "end_elevation_m": 154.6073734343686, "min_gradient_pct": -1.7418928214229368 }, { "window_m": 10.0, "max_gradient_pct": 22.593161074337047, "diagnostic": false, "flags": [], "start_distance_m": 590.0, "end_distance_m": 600.0, "start_elevation_m": 152.57539787648176, "end_elevation_m": 154.83471398391546, "min_gradient_pct": -1.1316646886763237 }, { "window_m": 20.0, "max_gradient_pct": 20.667483389168524, "diagnostic": false, "flags": [], "start_distance_m": 676.0, "end_distance_m": 696.0, "start_elevation_m": 166.34994688932903, "end_elevation_m": 170.48344356716274, "min_gradient_pct": -0.5114953235260344 }, { "window_m": 25.0, "max_gradient_pct": 20.138078218606097, "diagnostic": false, "flags": [], "start_distance_m": 670.0, "end_distance_m": 695.0, "start_elevation_m": 165.2715334199367, "end_elevation_m": 170.30605297458823, "min_gradient_pct": 0.09348203789755871 }, { "window_m": 50.0, "max_gradient_pct": 18.326373735225502, "diagnostic": false, "flags": [], "start_distance_m": 645.0, "end_distance_m": 695.0, "start_elevation_m": 161.14286610697548, "end_elevation_m": 170.30605297458823, "min_gradient_pct": 2.4746139837935743 }, { "window_m": 100.0, "max_gradient_pct": 16.70858629663863, "diagnostic": false, "flags": [], "start_distance_m": 593.0, "end_distance_m": 693.0, "start_elevation_m": 153.1952232669582, "end_elevation_m": 169.90380956359684, "min_gradient_pct": 3.0391898441585568 } ], "shape": { "ascent_concentration": 0.359, "concentration_window_frac": 0.25, "longest_pitch_10pct_m": 166.0, "shape_class": "sustained" }, "length_m": 1041.9999999999352, "start_elevation_m": 113.16392131558028, "end_elevation_m": 213.4014419564026, "endpoint_gain_m": 100.23752064082232, "overall_gradient_pct": 9.61972366994516, "accumulated_ascent_m": 100.46999390493338, "window_maxima": { "max_5m": { "gradient_pct": 23.65738190930699, "start_distance_m": 594.0, "end_distance_m": 599.0, "midpoint_distance_m": 596.5, "start_elevation_m": 153.42450433890326, "end_elevation_m": 154.6073734343686, "start_xy": [ 896731.3303141146, 6238510.39348669 ], "end_xy": [ 896735.2447306333, 6238507.32395326 ] }, "max_10m": { "gradient_pct": 22.593161074337047, "start_distance_m": 590.0, "end_distance_m": 600.0, "midpoint_distance_m": 595.0, "start_elevation_m": 152.57539787648176, "end_elevation_m": 154.83471398391546, "start_xy": [ 896728.6230034373, 6238513.338052684 ], "end_xy": [ 896736.1231064585, 6238506.845982644 ] }, "max_20m": { "gradient_pct": 20.667483389168524, "start_distance_m": 676.0, "end_distance_m": 696.0, "midpoint_distance_m": 686.0, "start_elevation_m": 166.34994688932903, "end_elevation_m": 170.48344356716274, "start_xy": [ 896808.5771371428, 6238487.116944086 ], "end_xy": [ 896828.1073585392, 6238482.86161041 ] }, "max_25m": { "gradient_pct": 20.138078218606097, "start_distance_m": 670.0, "end_distance_m": 695.0, "midpoint_distance_m": 682.5, "start_elevation_m": 165.2715334199367, "end_elevation_m": 170.30605297458823, "start_xy": [ 896802.7778597741, 6238488.643078307 ], "end_xy": [ 896827.1153823546, 6238482.988035285 ] }, "max_50m": { "gradient_pct": 18.326373735225502, "start_distance_m": 645.0, "end_distance_m": 695.0, "midpoint_distance_m": 670.0, "start_elevation_m": 161.14286610697548, "end_elevation_m": 170.30605297458823, "start_xy": [ 896778.4036169166, 6238493.075796442 ], "end_xy": [ 896827.1153823546, 6238482.988035285 ] }, "max_100m": { "gradient_pct": 16.70858629663863, "start_distance_m": 593.0, "end_distance_m": 693.0, "midpoint_distance_m": 643.0, "start_elevation_m": 153.1952232669582, "end_elevation_m": 169.90380956359684, "start_xy": [ 896730.6534864453, 6238511.129628188 ], "end_xy": [ 896825.138308744, 6238483.279289178 ] } }, "window_minima": { "min_5m": { "gradient_pct": -1.7418928214229368, "start_distance_m": 152.0, "end_distance_m": 157.0, "midpoint_distance_m": 154.5, "start_elevation_m": 125.5147112047791, "end_elevation_m": 125.42761656370796, "start_xy": [ 896555.8423073726, 6238880.100392573 ], "end_xy": [ 896556.176154694, 6238875.119217348 ] }, "min_10m": { "gradient_pct": -1.1316646886763237, "start_distance_m": 153.0, "end_distance_m": 163.0, "midpoint_distance_m": 158.0, "start_elevation_m": 125.5115303720151, "end_elevation_m": 125.39836390314747, "start_xy": [ 896555.8460738242, 6238879.100399666 ], "end_xy": [ 896557.5639027403, 6238869.287784281 ] }, "min_20m": { "gradient_pct": -0.5114953235260344, "start_distance_m": 150.0, "end_distance_m": 170.0, "midpoint_distance_m": 160.0, "start_elevation_m": 125.5001895676945, "end_elevation_m": 125.3978905029893, "start_xy": [ 896556.1348285845, 6238882.077911196 ], "end_xy": [ 896559.3778647849, 6238862.526901077 ] }, "min_25m": { "gradient_pct": 0.09348203789755871, "start_distance_m": 148.0, "end_distance_m": 173.0, "midpoint_distance_m": 160.5, "start_elevation_m": 125.45871241794445, "end_elevation_m": 125.48208292741884, "start_xy": [ 896556.7358080508, 6238883.981795307 ], "end_xy": [ 896560.2461928814, 6238859.657166163 ] }, "min_50m": { "gradient_pct": 2.4746139837935743, "start_distance_m": 382.0, "end_distance_m": 432.0, "midpoint_distance_m": 407.0, "start_elevation_m": 139.1325715245049, "end_elevation_m": 140.36987851640168, "start_xy": [ 896602.5368547898, 6238662.862894305 ], "end_xy": [ 896631.002903076, 6238622.360569732 ] }, "min_100m": { "gradient_pct": 3.0391898441585568, "start_distance_m": 358.0, "end_distance_m": 458.0, "midpoint_distance_m": 408.0, "start_elevation_m": 138.2345501732555, "end_elevation_m": 141.27374001741407, "start_xy": [ 896598.4757866465, 6238686.512754554 ], "end_xy": [ 896639.9584636869, 6238598.16463268 ] } }, "diagnostic_window_maxima": { "max_2m": { "gradient_pct": 25.103891877917306, "start_distance_m": 595.0, "end_distance_m": 597.0, "midpoint_distance_m": 596.0, "start_elevation_m": 153.65320916935858, "end_elevation_m": 154.15528700691692, "start_xy": [ 896732.022047373, 6238509.673306907 ], "end_xy": [ 896733.5834097292, 6238508.423447877 ] }, "max_3m": { "gradient_pct": 24.655957827152026, "start_distance_m": 892.0, "end_distance_m": 895.0, "midpoint_distance_m": 893.5, "start_elevation_m": 190.23959763759544, "end_elevation_m": 190.97927637241, "start_xy": [ 896996.195730413, 6238426.4114430295 ], "end_xy": [ 896998.7329901038, 6238427.944625253 ] } }, "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": 0.235, "obstruction_max_height_m": 14.24, "flagged_windows_m": [] }, "review": [], "extent": [ "may_start_earlier", "may_continue_beyond_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-pr3", "road_pbf": "block-batch-fr-pr3.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_E896-N6238_0m5@21LHD7PQ-2025-03-14.tif", "data/cache/fr/ign-lidarhd_dtm_E896-N6239_0m5@21LHD7PQ-2025-03-14.tif", "data/cache/fr/ign-lidarhd_dtm_E897-N6238_0m5@21LHD7PQ-2025-03-14.tif", "data/cache/fr/ign-lidarhd_dtm_E897-N6239_0m5@21LHD7PQ-2025-03-14.tif" ], "calculated_at": "2026-09-25T09:26:49+00:00", "road_source": "OpenStreetMap (local PBF extract)", "road_attribution": "\u00a9 OpenStreetMap contributors, ODbL", "osm_pbf_path": "data/cache/pbf/block-batch-fr-pr3.osm.pbf", "osm_snapshot": "", "run_id": "fr-pr3", "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": [ "E896-N6238", "E896-N6239", "E897-N6238", "E897-N6239" ], "elevation_blocks": [ "21LHD7PQ@2025-03-14" ], "ign_dalles": [ "LHD_FXX_0896_6239_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0896_6240_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0897_6239_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0897_6240_MNT_O_0M50_LAMB93_IGN69" ], "ign_missions": [ "21LHD7PQ" ], "ign_editions": [ "2025-03-14" ], "ign_dsm_edition": { "LHD_FXX_0896_6239_MNT_O_0M50_LAMB93_IGN69": "2025-03-14", "LHD_FXX_0896_6240_MNT_O_0M50_LAMB93_IGN69": "2025-03-14", "LHD_FXX_0897_6239_MNT_O_0M50_LAMB93_IGN69": "2025-03-14", "LHD_FXX_0897_6240_MNT_O_0M50_LAMB93_IGN69": "2025-03-14" }, "route_summit_trim_m": 396.3, "route_summit_trim_loss_m": 47.4, "climb_origin": "discovered", "structure_own_ways": 1, "carriageway": { "stations": 47, "stations_resolved": 47, "width_median_m": 4.25, "width_p10_m": 3.25, "width_min_m": 2.5, "width_max_m": 8.5, "bounded_share": 0.596, "unbounded_share": 0.404, "confidence_median": 0.571, "width_median_bounded_m": 4.25, "window_m": [ 670.0, 695.0 ], "width_at_max25_m": 4.25, "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": 47, "stations_resolved": 47, "width_median_m": 3.0, "width_p10_m": 1.0, "width_min_m": 0.5, "width_max_m": 6.5, "bounded_share": 1.0, "unbounded_share": 0.0, "confidence_median": 1.0, "width_median_bounded_m": 3.0, "window_m": [ 670.0, 695.0 ], "width_at_max25_m": 3.75, "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": "Marseille", "county": "Bouches-du-Rh\u00f4ne", "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)" } }