{ "ocl_version": "0.1.0", "name": "Chemin des Gonnet", "slug": "chemin-des-gonnet", "confidence": "B", "reported_claims": [], "ladder": [ { "window_m": 2.0, "max_gradient_pct": 28.01973219034153, "diagnostic": true, "flags": [ "canopy_or_structure" ], "start_distance_m": 870.0, "end_distance_m": 872.0, "start_elevation_m": 160.99574561239348, "end_elevation_m": 161.5561402562003, "min_gradient_pct": 0.26713264288460437 }, { "window_m": 3.0, "max_gradient_pct": 26.614059278593533, "diagnostic": true, "flags": [], "start_distance_m": 869.0, "end_distance_m": 872.0, "start_elevation_m": 160.7577184778425, "end_elevation_m": 161.5561402562003, "min_gradient_pct": 0.6500699644883904 }, { "window_m": 5.0, "max_gradient_pct": 25.650299077967702, "diagnostic": false, "flags": [], "start_distance_m": 846.0, "end_distance_m": 851.0, "start_elevation_m": 156.83259437851348, "end_elevation_m": 158.11510933241186, "min_gradient_pct": 0.7741635109425715 }, { "window_m": 10.0, "max_gradient_pct": 24.504489668667873, "diagnostic": false, "flags": [], "start_distance_m": 846.0, "end_distance_m": 856.0, "start_elevation_m": 156.83259437851348, "end_elevation_m": 159.28304334538026, "min_gradient_pct": 0.8633519472594742 }, { "window_m": 20.0, "max_gradient_pct": 21.50874014554958, "diagnostic": false, "flags": [], "start_distance_m": 838.0, "end_distance_m": 858.0, "start_elevation_m": 155.3170989490705, "end_elevation_m": 159.61884697818041, "min_gradient_pct": 0.9377968770483847 }, { "window_m": 25.0, "max_gradient_pct": 20.643223328584895, "diagnostic": false, "flags": [], "start_distance_m": 831.0, "end_distance_m": 856.0, "start_elevation_m": 154.12223751323404, "end_elevation_m": 159.28304334538026, "min_gradient_pct": 1.046049859926086 }, { "window_m": 50.0, "max_gradient_pct": 18.455994194092966, "diagnostic": false, "flags": [ "canopy_or_structure" ], "start_distance_m": 844.0, "end_distance_m": 894.0, "start_elevation_m": 156.44385674795512, "end_elevation_m": 165.6718538450016, "min_gradient_pct": 1.529932919044569 }, { "window_m": 100.0, "max_gradient_pct": 17.58603190642063, "diagnostic": false, "flags": [], "start_distance_m": 807.0, "end_distance_m": 907.0, "start_elevation_m": 150.2292853450431, "end_elevation_m": 167.81531725146374, "min_gradient_pct": 2.4352891473597253 } ], "shape": { "ascent_concentration": 0.482, "concentration_window_frac": 0.25, "longest_pitch_10pct_m": 206.0, "shape_class": "stepped" }, "length_m": 930.9000000002058, "start_elevation_m": 95.80322459808221, "end_elevation_m": 171.08748222339153, "endpoint_gain_m": 75.28425762530932, "overall_gradient_pct": 8.087255089192467, "accumulated_ascent_m": 75.29420720324751, "window_maxima": { "max_5m": { "gradient_pct": 25.650299077967702, "start_distance_m": 846.0, "end_distance_m": 851.0, "midpoint_distance_m": 848.5, "start_elevation_m": 156.83259437851348, "end_elevation_m": 158.11510933241186, "start_xy": [ 862289.8960111482, 6338249.940779004 ], "end_xy": [ 862288.7043581415, 6338254.720493179 ] }, "max_10m": { "gradient_pct": 24.504489668667873, "start_distance_m": 846.0, "end_distance_m": 856.0, "midpoint_distance_m": 851.0, "start_elevation_m": 156.83259437851348, "end_elevation_m": 159.28304334538026, "start_xy": [ 862289.8960111482, 6338249.940779004 ], "end_xy": [ 862289.0353821982, 6338259.674422669 ] }, "max_20m": { "gradient_pct": 21.50874014554958, "start_distance_m": 838.0, "end_distance_m": 858.0, "midpoint_distance_m": 848.0, "start_elevation_m": 155.3170989490705, "end_elevation_m": 159.61884697818041, "start_xy": [ 862292.9163841323, 6338242.579667841 ], "end_xy": [ 862289.8633210027, 6338261.495004262 ] }, "max_25m": { "gradient_pct": 20.643223328584895, "start_distance_m": 831.0, "end_distance_m": 856.0, "midpoint_distance_m": 843.5, "start_elevation_m": 154.12223751323404, "end_elevation_m": 159.28304334538026, "start_xy": [ 862297.3479401247, 6338237.161060002 ], "end_xy": [ 862289.0353821982, 6338259.674422669 ] }, "max_50m": { "gradient_pct": 18.455994194092966, "start_distance_m": 844.0, "end_distance_m": 894.0, "midpoint_distance_m": 869.0, "start_elevation_m": 156.44385674795512, "end_elevation_m": 165.6718538450016, "start_xy": [ 862290.5873871441, 6338248.064079979 ], "end_xy": [ 862273.2830611796, 6338279.679700196 ] }, "max_100m": { "gradient_pct": 17.58603190642063, "start_distance_m": 807.0, "end_distance_m": 907.0, "midpoint_distance_m": 857.0, "start_elevation_m": 150.2292853450431, "end_elevation_m": 167.81531725146374, "start_xy": [ 862314.0670863998, 6338220.011584251 ], "end_xy": [ 862260.3281615094, 6338279.998214188 ] } }, "window_minima": { "min_5m": { "gradient_pct": 0.7741635109425715, "start_distance_m": 564.0, "end_distance_m": 569.0, "midpoint_distance_m": 566.5, "start_elevation_m": 126.75401333039176, "end_elevation_m": 126.79272150593889, "start_xy": [ 862535.6887248334, 6338245.469100773 ], "end_xy": [ 862530.7357158699, 6338244.799690225 ] }, "min_10m": { "gradient_pct": 0.8633519472594742, "start_distance_m": 561.0, "end_distance_m": 571.0, "midpoint_distance_m": 566.0, "start_elevation_m": 126.72520523589971, "end_elevation_m": 126.81154043062566, "start_xy": [ 862538.6452316706, 6338245.978087337 ], "end_xy": [ 862528.7483933554, 6338244.574858682 ] }, "min_20m": { "gradient_pct": 0.9377968770483847, "start_distance_m": 561.0, "end_distance_m": 581.0, "midpoint_distance_m": 571.0, "start_elevation_m": 126.72520523589971, "end_elevation_m": 126.91276461130938, "start_xy": [ 862538.6452316706, 6338245.978087337 ], "end_xy": [ 862518.8117807823, 6338243.450700964 ] }, "min_25m": { "gradient_pct": 1.046049859926086, "start_distance_m": 561.0, "end_distance_m": 586.0, "midpoint_distance_m": 573.5, "start_elevation_m": 126.72520523589971, "end_elevation_m": 126.98671770088123, "start_xy": [ 862538.6452316706, 6338245.978087337 ], "end_xy": [ 862513.8434744958, 6338242.888622105 ] }, "min_50m": { "gradient_pct": 1.529932919044569, "start_distance_m": 551.0, "end_distance_m": 601.0, "midpoint_distance_m": 576.0, "start_elevation_m": 126.52377467418755, "end_elevation_m": 127.28874113370983, "start_xy": [ 862548.5002544611, 6338247.674709216 ], "end_xy": [ 862498.9385556363, 6338241.202385529 ] }, "min_100m": { "gradient_pct": 2.4352891473597253, "start_distance_m": 510.0, "end_distance_m": 610.0, "midpoint_distance_m": 560.0, "start_elevation_m": 125.11434322206459, "end_elevation_m": 127.54963236942432, "start_xy": [ 862588.3545857058, 6338256.933608479 ], "end_xy": [ 862490.0159070045, 6338240.044385861 ] } }, "diagnostic_window_maxima": { "max_2m": { "gradient_pct": 28.01973219034153, "start_distance_m": 870.0, "end_distance_m": 872.0, "midpoint_distance_m": 871.0, "start_elevation_m": 160.99574561239348, "end_elevation_m": 161.5561402562003, "start_xy": [ 862294.3014136145, 6338270.581822203 ], "end_xy": [ 862293.2051784414, 6338272.236707703 ] }, "max_3m": { "gradient_pct": 26.614059278593533, "start_distance_m": 869.0, "end_distance_m": 872.0, "midpoint_distance_m": 870.5, "start_elevation_m": 160.7577184778425, "end_elevation_m": 161.5561402562003, "start_xy": [ 862294.7842268626, 6338269.706098863 ], "end_xy": [ 862293.2051784414, 6338272.236707703 ] } }, "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": 0.026, "obstruction_max_height_m": 9.82, "flagged_windows_m": [ 2, 50 ] }, "review": [], "extent": [ "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-pr1", "road_pbf": "block-batch-fr-pr1.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_E862-N6337_0m5@22LHD6OO-2025-03-14.tif", "data/cache/fr/ign-lidarhd_dtm_E862-N6338_0m5@22LHD6OO-2025-03-14.tif" ], "calculated_at": "2026-09-25T10:47:13+00:00", "road_source": "OpenStreetMap (local PBF extract)", "road_attribution": "\u00a9 OpenStreetMap contributors, ODbL", "osm_pbf_path": "data/cache/pbf/block-batch-fr-pr1.osm.pbf", "osm_snapshot": "", "run_id": "fr-pr1", "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": [ "E862-N6337", "E862-N6338" ], "elevation_blocks": [ "22LHD6OO@2025-03-14" ], "ign_dalles": [ "LHD_FXX_0862_6338_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0862_6339_MNT_O_0M50_LAMB93_IGN69" ], "ign_missions": [ "22LHD6OO" ], "ign_editions": [ "2025-03-14" ], "ign_dsm_edition": { "LHD_FXX_0862_6338_MNT_O_0M50_LAMB93_IGN69": "2025-03-14", "LHD_FXX_0862_6339_MNT_O_0M50_LAMB93_IGN69": "2025-03-14" }, "route_cut_m": 930.9, "climb_origin": "discovered", "structure_own_ways": 8, "carriageway": { "stations": 44, "stations_resolved": 44, "width_median_m": 6.75, "width_p10_m": 4.5, "width_min_m": 3.0, "width_max_m": 12.0, "bounded_share": 0.386, "unbounded_share": 0.614, "confidence_median": 0.0, "width_median_bounded_m": 5.25, "window_m": [ 831.0, 856.0 ], "width_at_max25_m": 5.25, "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": 44, "stations_resolved": 44, "width_median_m": 6.0, "width_p10_m": 2.83, "width_min_m": 0.5, "width_max_m": 12.0, "bounded_share": 0.727, "unbounded_share": 0.273, "confidence_median": 1.0, "width_median_bounded_m": 5.25, "window_m": [ 831.0, 856.0 ], "width_at_max25_m": 5.25, "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": "Beaumes-de-Venise", "county": "Vaucluse", "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)" } }