{ "ocl_version": "0.1.0", "name": "Chemin de Rondi\u00e8re", "slug": "chemin-de-rondiere", "confidence": "B", "reported_claims": [], "ladder": [ { "window_m": 2.0, "max_gradient_pct": 41.32976708341971, "diagnostic": true, "flags": [ "canopy_or_structure" ], "start_distance_m": 245.0, "end_distance_m": 247.0, "start_elevation_m": 570.6219567630262, "end_elevation_m": 571.4485521046946, "min_gradient_pct": -12.974484136793762 }, { "window_m": 3.0, "max_gradient_pct": 35.71673086028113, "diagnostic": true, "flags": [ "canopy_or_structure" ], "start_distance_m": 245.0, "end_distance_m": 248.0, "start_elevation_m": 570.6219567630262, "end_elevation_m": 571.6934586888347, "min_gradient_pct": -9.143542508077948 }, { "window_m": 5.0, "max_gradient_pct": 27.940777301071194, "diagnostic": false, "flags": [ "canopy_or_structure" ], "start_distance_m": 245.0, "end_distance_m": 250.0, "start_elevation_m": 570.6219567630262, "end_elevation_m": 572.0189956280798, "min_gradient_pct": -8.590212581236756 }, { "window_m": 10.0, "max_gradient_pct": 24.70513556388255, "diagnostic": false, "flags": [ "canopy_or_structure" ], "start_distance_m": 241.0, "end_distance_m": 251.0, "start_elevation_m": 569.8017370438371, "end_elevation_m": 572.2722506002253, "min_gradient_pct": -8.205096712271143 }, { "window_m": 20.0, "max_gradient_pct": 23.28535704378453, "diagnostic": false, "flags": [], "start_distance_m": 323.0, "end_distance_m": 343.0, "start_elevation_m": 585.4802575314915, "end_elevation_m": 590.1373289402484, "min_gradient_pct": -7.505990730127792 }, { "window_m": 25.0, "max_gradient_pct": 23.16753157018229, "diagnostic": false, "flags": [], "start_distance_m": 320.0, "end_distance_m": 345.0, "start_elevation_m": 584.8071483761593, "end_elevation_m": 590.5990312687048, "min_gradient_pct": -7.11860765599522 }, { "window_m": 50.0, "max_gradient_pct": 22.58554254058913, "diagnostic": false, "flags": [], "start_distance_m": 313.0, "end_distance_m": 363.0, "start_elevation_m": 583.3026012863743, "end_elevation_m": 594.5953725566688, "min_gradient_pct": -6.326173573903134 }, { "window_m": 100.0, "max_gradient_pct": 21.205172022289844, "diagnostic": false, "flags": [ "canopy_or_structure" ], "start_distance_m": 277.0, "end_distance_m": 377.0, "start_elevation_m": 576.2034950015641, "end_elevation_m": 597.4086670238539, "min_gradient_pct": -5.729634635323464 } ], "shape": { "ascent_concentration": 0.368, "concentration_window_frac": 0.25, "longest_pitch_10pct_m": 313.0, "shape_class": "sustained" }, "length_m": 1545.244470171914, "start_elevation_m": 541.2163652695434, "end_elevation_m": 701.4725377734293, "endpoint_gain_m": 160.25617250388586, "overall_gradient_pct": 10.370926775493123, "accumulated_ascent_m": 166.84957374830026, "window_maxima": { "max_5m": { "gradient_pct": 27.940777301071194, "start_distance_m": 245.0, "end_distance_m": 250.0, "midpoint_distance_m": 247.5, "start_elevation_m": 570.6219567630262, "end_elevation_m": 572.0189956280798, "start_xy": [ 800789.1740816747, 6532180.684876683 ], "end_xy": [ 800793.7105190465, 6532182.784711151 ] }, "max_10m": { "gradient_pct": 24.70513556388255, "start_distance_m": 241.0, "end_distance_m": 251.0, "midpoint_distance_m": 246.0, "start_elevation_m": 569.8017370438371, "end_elevation_m": 572.2722506002253, "start_xy": [ 800786.0151222796, 6532178.231109062 ], "end_xy": [ 800794.6188552679, 6532183.202951882 ] }, "max_20m": { "gradient_pct": 23.28535704378453, "start_distance_m": 323.0, "end_distance_m": 343.0, "midpoint_distance_m": 333.0, "start_elevation_m": 585.4802575314915, "end_elevation_m": 590.1373289402484, "start_xy": [ 800861.8177133948, 6532208.16481637 ], "end_xy": [ 800881.6995566443, 6532209.745315608 ] }, "max_25m": { "gradient_pct": 23.16753157018229, "start_distance_m": 320.0, "end_distance_m": 345.0, "midpoint_distance_m": 332.5, "start_elevation_m": 584.8071483761593, "end_elevation_m": 590.5990312687048, "start_xy": [ 800858.8551782091, 6532207.692179857 ], "end_xy": [ 800883.6994753722, 6532209.763345633 ] }, "max_50m": { "gradient_pct": 22.58554254058913, "start_distance_m": 313.0, "end_distance_m": 363.0, "midpoint_distance_m": 338.0, "start_elevation_m": 583.3026012863743, "end_elevation_m": 594.5953725566688, "start_xy": [ 800851.9425961091, 6532206.589361327 ], "end_xy": [ 800901.6874246587, 6532210.133178454 ] }, "max_100m": { "gradient_pct": 21.205172022289844, "start_distance_m": 277.0, "end_distance_m": 377.0, "midpoint_distance_m": 327.0, "start_elevation_m": 576.2034950015641, "end_elevation_m": 597.4086670238539, "start_xy": [ 800818.7023347602, 6532192.911586022 ], "end_xy": [ 800915.6175592917, 6532211.530085433 ] } }, "window_minima": { "min_5m": { "gradient_pct": -8.590212581236756, "start_distance_m": 1419.0, "end_distance_m": 1424.0, "midpoint_distance_m": 1421.5, "start_elevation_m": 702.6972981111006, "end_elevation_m": 702.2677874820388, "start_xy": [ 801878.2441245147, 6531950.8842973765 ], "end_xy": [ 801882.463031002, 6531948.200861509 ] }, "min_10m": { "gradient_pct": -8.205096712271143, "start_distance_m": 1417.0, "end_distance_m": 1427.0, "midpoint_distance_m": 1422.0, "start_elevation_m": 702.8525627422372, "end_elevation_m": 702.0320530710101, "start_xy": [ 801876.5565619197, 6531951.957671722 ], "end_xy": [ 801884.9943748944, 6531946.590799989 ] }, "min_20m": { "gradient_pct": -7.505990730127792, "start_distance_m": 1412.0, "end_distance_m": 1432.0, "midpoint_distance_m": 1422.0, "start_elevation_m": 703.1711484037917, "end_elevation_m": 701.6699502577661, "start_xy": [ 801872.3376554325, 6531954.64110759 ], "end_xy": [ 801889.2132813816, 6531943.907364123 ] }, "min_25m": { "gradient_pct": -7.11860765599522, "start_distance_m": 1410.0, "end_distance_m": 1435.0, "midpoint_distance_m": 1422.5, "start_elevation_m": 703.2944889173589, "end_elevation_m": 701.5148370033601, "start_xy": [ 801870.6500928375, 6531955.714481937 ], "end_xy": [ 801891.7446252741, 6531942.297302602 ] }, "min_50m": { "gradient_pct": -6.326173573903134, "start_distance_m": 1381.0, "end_distance_m": 1431.0, "midpoint_distance_m": 1406.0, "start_elevation_m": 704.9049166131988, "end_elevation_m": 701.7418298262472, "start_xy": [ 801845.4285795595, 6531969.741581755 ], "end_xy": [ 801888.3695000842, 6531944.4440512955 ] }, "min_100m": { "gradient_pct": -5.729634635323464, "start_distance_m": 1350.0, "end_distance_m": 1450.0, "midpoint_distance_m": 1400.0, "start_elevation_m": 706.6830949400558, "end_elevation_m": 700.9534603047323, "start_xy": [ 801815.6935813818, 6531978.504190096 ], "end_xy": [ 801902.5729406653, 6531931.953442412 ] } }, "diagnostic_window_maxima": { "max_2m": { "gradient_pct": 41.32976708341971, "start_distance_m": 245.0, "end_distance_m": 247.0, "midpoint_distance_m": 246.0, "start_elevation_m": 570.6219567630262, "end_elevation_m": 571.4485521046946, "start_xy": [ 800789.1740816747, 6532180.684876683 ], "end_xy": [ 800790.9855103822, 6532181.529988959 ] }, "max_3m": { "gradient_pct": 35.71673086028113, "start_distance_m": 245.0, "end_distance_m": 248.0, "midpoint_distance_m": 246.5, "start_elevation_m": 570.6219567630262, "end_elevation_m": 571.6934586888347, "start_xy": [ 800789.1740816747, 6532180.684876683 ], "end_xy": [ 800791.8938466036, 6532181.94822969 ] } }, "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": 0.014, "windows_resited": [], "windows_unresolved": [], "minima_resited": [], "minima_unresolved": [] }, "overhead_obstruction": { "obstruction_threshold_m": 2.0, "obstructed_fraction": 0.153, "obstruction_max_height_m": 18.34, "flagged_windows_m": [ 2, 3, 5, 10, 100 ] }, "excluded_ranges_m": [ [ 0.0, 20.0 ] ], "review": [], "extent": [] }, "provenance": { "analysis_version": "0.1.0", "run_manifest": { "manifest_version": "1", "code_git_sha": "076a8e7f889cfb3c2cf6b3de65a6030c7155b1f0", "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-mc7", "road_pbf": "block-batch-fr-mc7.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_E800-N6531_0m5@22LHD4NL-2025-08-06.tif", "data/cache/fr/ign-lidarhd_dtm_E800-N6532_0m5@22LHD4NL-2025-08-06.tif", "data/cache/fr/ign-lidarhd_dtm_E801-N6531_0m5@22LHD4NL-2025-08-06.tif", "data/cache/fr/ign-lidarhd_dtm_E801-N6532_0m5@22LHD4NL-2025-08-06.tif", "data/cache/fr/ign-lidarhd_dtm_E802-N6531_0m5@22LHD4NL-2025-08-06.tif", "data/cache/fr/ign-lidarhd_dtm_E802-N6532_0m5@22LHD4NL-2025-08-06.tif" ], "calculated_at": "2026-09-22T14:36:33+00:00", "road_source": "OpenStreetMap (local PBF extract)", "road_attribution": "\u00a9 OpenStreetMap contributors, ODbL", "osm_pbf_path": "data/cache/pbf/block-batch-fr-mc7.osm.pbf", "osm_snapshot": "", "run_id": "fr-mc7", "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": [ "E800-N6531", "E800-N6532", "E801-N6531", "E801-N6532", "E802-N6531", "E802-N6532" ], "elevation_blocks": [ "22LHD4NL@2025-08-06" ], "ign_dalles": [ "LHD_FXX_0800_6532_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0800_6533_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0801_6532_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0801_6533_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0802_6532_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0802_6533_MNT_O_0M50_LAMB93_IGN69" ], "ign_missions": [ "22LHD4NL" ], "ign_editions": [ "2025-08-06" ], "ign_dsm_edition": { "LHD_FXX_0800_6532_MNT_O_0M50_LAMB93_IGN69": "2025-08-06", "LHD_FXX_0800_6533_MNT_O_0M50_LAMB93_IGN69": "2025-08-06", "LHD_FXX_0801_6532_MNT_O_0M50_LAMB93_IGN69": "2025-08-06", "LHD_FXX_0801_6533_MNT_O_0M50_LAMB93_IGN69": "2025-08-06", "LHD_FXX_0802_6532_MNT_O_0M50_LAMB93_IGN69": "2025-08-06", "LHD_FXX_0802_6533_MNT_O_0M50_LAMB93_IGN69": "2025-08-06" }, "climb_origin": "discovered", "structure_own_ways": 1, "structure_mask_ranges_m": [ [ 0.0, 15.0 ] ], "carriageway": { "stations": 67, "stations_resolved": 67, "width_median_m": 3.0, "width_p10_m": 2.15, "width_min_m": 1.0, "width_max_m": 8.0, "bounded_share": 0.373, "unbounded_share": 0.627, "confidence_median": 0.0, "width_median_bounded_m": 3.5, "window_m": [ 320.0, 345.0 ], "width_at_max25_m": 4.0, "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": 67, "stations_resolved": 67, "width_median_m": 4.75, "width_p10_m": 1.8, "width_min_m": 1.0, "width_max_m": 10.75, "bounded_share": 0.791, "unbounded_share": 0.209, "confidence_median": 1.0, "width_median_bounded_m": 3.75, "window_m": [ 320.0, 345.0 ], "width_at_max25_m": 5.38, "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": "Saint-Cyr-de-Valorges", "county": "Loire", "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)" } }