{ "ocl_version": "0.1.0", "name": "Chemin des Hauts Fadons", "slug": "chemin-des-hauts-fadons", "confidence": "B", "reported_claims": [], "ladder": [ { "window_m": 2.0, "max_gradient_pct": 32.7381355544766, "diagnostic": true, "flags": [ "canopy_or_structure" ], "start_distance_m": 42.0, "end_distance_m": 44.0, "start_elevation_m": 95.03736778742382, "end_elevation_m": 95.69213049851335, "min_gradient_pct": -12.717450229740734 }, { "window_m": 3.0, "max_gradient_pct": 27.022365044181623, "diagnostic": true, "flags": [ "canopy_or_structure" ], "start_distance_m": 42.0, "end_distance_m": 45.0, "start_elevation_m": 95.03736778742382, "end_elevation_m": 95.84803873874927, "min_gradient_pct": -10.505265971476282 }, { "window_m": 5.0, "max_gradient_pct": 24.47593747107959, "diagnostic": false, "flags": [ "canopy_or_structure" ], "start_distance_m": 222.0, "end_distance_m": 227.0, "start_elevation_m": 113.99322234970396, "end_elevation_m": 115.21701922325794, "min_gradient_pct": -9.855186383884984 }, { "window_m": 10.0, "max_gradient_pct": 24.217093802076164, "diagnostic": false, "flags": [ "canopy_or_structure" ], "start_distance_m": 222.0, "end_distance_m": 232.0, "start_elevation_m": 113.99322234970396, "end_elevation_m": 116.41493172991157, "min_gradient_pct": -7.879378740009884 }, { "window_m": 20.0, "max_gradient_pct": 23.084022129788266, "diagnostic": false, "flags": [ "canopy_or_structure" ], "start_distance_m": 222.0, "end_distance_m": 242.0, "start_elevation_m": 113.99322234970396, "end_elevation_m": 118.61002677566161, "min_gradient_pct": -6.246231516038705 }, { "window_m": 25.0, "max_gradient_pct": 22.88299099910364, "diagnostic": false, "flags": [ "canopy_or_structure" ], "start_distance_m": 216.0, "end_distance_m": 241.0, "start_elevation_m": 112.67927780974881, "end_elevation_m": 118.40002555952472, "min_gradient_pct": -6.1160219527308755 }, { "window_m": 50.0, "max_gradient_pct": 21.47880073488315, "diagnostic": false, "flags": [ "canopy_or_structure" ], "start_distance_m": 210.0, "end_distance_m": 260.0, "start_elevation_m": 111.49112173911655, "end_elevation_m": 122.23052210655813, "min_gradient_pct": -4.883241748107309 }, { "window_m": 100.0, "max_gradient_pct": 18.39347906689224, "diagnostic": false, "flags": [ "canopy_or_structure" ], "start_distance_m": 197.0, "end_distance_m": 297.0, "start_elevation_m": 109.6468608020233, "end_elevation_m": 128.04033986891554, "min_gradient_pct": -2.868610206426027 } ], "shape": { "ascent_concentration": 0.511, "concentration_window_frac": 0.25, "longest_pitch_10pct_m": 114.0, "shape_class": "stepped" }, "length_m": 804.5263018857165, "start_elevation_m": 89.19860255000513, "end_elevation_m": 140.62496458777295, "endpoint_gain_m": 51.42636203776782, "overall_gradient_pct": 6.392129370690601, "accumulated_ascent_m": 57.97135434170593, "window_maxima": { "max_5m": { "gradient_pct": 24.47593747107959, "start_distance_m": 222.0, "end_distance_m": 227.0, "midpoint_distance_m": 224.5, "start_elevation_m": 113.99322234970396, "end_elevation_m": 115.21701922325794, "start_xy": [ 969319.0238202249, 6268251.470651076 ], "end_xy": [ 969314.5398732731, 6268249.258362728 ] }, "max_10m": { "gradient_pct": 24.217093802076164, "start_distance_m": 222.0, "end_distance_m": 232.0, "midpoint_distance_m": 227.0, "start_elevation_m": 113.99322234970396, "end_elevation_m": 116.41493172991157, "start_xy": [ 969319.0238202249, 6268251.470651076 ], "end_xy": [ 969310.0559263212, 6268247.046074381 ] }, "max_20m": { "gradient_pct": 23.084022129788266, "start_distance_m": 222.0, "end_distance_m": 242.0, "midpoint_distance_m": 232.0, "start_elevation_m": 113.99322234970396, "end_elevation_m": 118.61002677566161, "start_xy": [ 969319.0238202249, 6268251.470651076 ], "end_xy": [ 969302.5084212067, 6268240.525084712 ] }, "max_25m": { "gradient_pct": 22.88299099910364, "start_distance_m": 216.0, "end_distance_m": 241.0, "midpoint_distance_m": 228.5, "start_elevation_m": 112.67927780974881, "end_elevation_m": 118.40002555952472, "start_xy": [ 969324.4045565672, 6268254.125397093 ], "end_xy": [ 969303.2518337677, 6268241.193917847 ] }, "max_50m": { "gradient_pct": 21.47880073488315, "start_distance_m": 210.0, "end_distance_m": 260.0, "midpoint_distance_m": 235.0, "start_elevation_m": 111.49112173911655, "end_elevation_m": 122.23052210655813, "start_xy": [ 969329.7852929095, 6268256.78014311 ], "end_xy": [ 969288.4506124312, 6268229.404131893 ] }, "max_100m": { "gradient_pct": 18.39347906689224, "start_distance_m": 197.0, "end_distance_m": 297.0, "midpoint_distance_m": 247.0, "start_elevation_m": 109.6468608020233, "end_elevation_m": 128.04033986891554, "start_xy": [ 969341.4435549844, 6268262.532092813 ], "end_xy": [ 969258.2690513036, 6268208.40617487 ] } }, "window_minima": { "min_5m": { "gradient_pct": -9.855186383884984, "start_distance_m": 707.0, "end_distance_m": 712.0, "midpoint_distance_m": 709.5, "start_elevation_m": 138.37697844350444, "end_elevation_m": 137.8842191243102, "start_xy": [ 968950.3626120484, 6267958.229477138 ], "end_xy": [ 968946.5820332369, 6267954.95728768 ] }, "min_10m": { "gradient_pct": -7.879378740009884, "start_distance_m": 707.0, "end_distance_m": 717.0, "midpoint_distance_m": 712.0, "start_elevation_m": 138.37697844350444, "end_elevation_m": 137.58904056950345, "start_xy": [ 968950.3626120484, 6267958.229477138 ], "end_xy": [ 968942.8014544253, 6267951.6850982215 ] }, "min_20m": { "gradient_pct": -6.246231516038705, "start_distance_m": 699.0, "end_distance_m": 719.0, "midpoint_distance_m": 709.0, "start_elevation_m": 138.72440330381002, "end_elevation_m": 137.47515700060228, "start_xy": [ 968956.4115381468, 6267963.464980271 ], "end_xy": [ 968941.2892229008, 6267950.376222438 ] }, "min_25m": { "gradient_pct": -6.1160219527308755, "start_distance_m": 694.0, "end_distance_m": 719.0, "midpoint_distance_m": 706.5, "start_elevation_m": 139.004162488785, "end_elevation_m": 137.47515700060228, "start_xy": [ 968960.1921169583, 6267966.73716973 ], "end_xy": [ 968941.2892229008, 6267950.376222438 ] }, "min_50m": { "gradient_pct": -4.883241748107309, "start_distance_m": 675.0, "end_distance_m": 725.0, "midpoint_distance_m": 700.0, "start_elevation_m": 139.72776310512305, "end_elevation_m": 137.2861422310694, "start_xy": [ 968976.6680089554, 6267975.387460773 ], "end_xy": [ 968936.7525283269, 6267946.449595089 ] }, "min_100m": { "gradient_pct": -2.868610206426027, "start_distance_m": 335.0, "end_distance_m": 435.0, "midpoint_distance_m": 385.0, "start_elevation_m": 130.1568651759869, "end_elevation_m": 127.28825496956087, "start_xy": [ 969231.65620207, 6268181.284948075 ], "end_xy": [ 969162.4561967996, 6268109.45006582 ] } }, "diagnostic_window_maxima": { "max_2m": { "gradient_pct": 32.7381355544766, "start_distance_m": 42.0, "end_distance_m": 44.0, "midpoint_distance_m": 43.0, "start_elevation_m": 95.03736778742382, "end_elevation_m": 95.69213049851335, "start_xy": [ 969473.4429416986, 6268342.50525673 ], "end_xy": [ 969471.7231380153, 6268341.484337884 ] }, "max_3m": { "gradient_pct": 27.022365044181623, "start_distance_m": 42.0, "end_distance_m": 45.0, "midpoint_distance_m": 43.5, "start_elevation_m": 95.03736778742382, "end_elevation_m": 95.84803873874927, "start_xy": [ 969473.4429416986, 6268342.50525673 ], "end_xy": [ 969470.8632361735, 6268340.973878461 ] } }, "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": 0.428, "obstruction_max_height_m": 22.2, "flagged_windows_m": [ 2, 3, 5, 10, 20, 25, 50, 100 ] }, "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-pr6", "road_pbf": "block-batch-fr-pr6.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_E968-N6267_0m5@22LHD6QQ-2025-03-24.tif", "data/cache/fr/ign-lidarhd_dtm_E968-N6268_0m5@22LHD6QQ-2025-03-24.tif", "data/cache/fr/ign-lidarhd_dtm_E969-N6267_0m5@22LHD6QQ-2025-03-24.tif", "data/cache/fr/ign-lidarhd_dtm_E969-N6268_0m5@22LHD6QQ-2025-03-24.tif" ], "calculated_at": "2026-09-25T09:21:39+00:00", "road_source": "OpenStreetMap (local PBF extract)", "road_attribution": "\u00a9 OpenStreetMap contributors, ODbL", "osm_pbf_path": "data/cache/pbf/block-batch-fr-pr6.osm.pbf", "osm_snapshot": "", "run_id": "fr-pr6", "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": [ "E968-N6267", "E968-N6268", "E969-N6267", "E969-N6268" ], "elevation_blocks": [ "22LHD6QQ@2025-03-24" ], "ign_dalles": [ "LHD_FXX_0968_6268_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0968_6269_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0969_6268_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0969_6269_MNT_O_0M50_LAMB93_IGN69" ], "ign_missions": [ "22LHD6QQ" ], "ign_editions": [ "2025-03-24" ], "ign_dsm_edition": { "LHD_FXX_0968_6268_MNT_O_0M50_LAMB93_IGN69": "2025-03-24", "LHD_FXX_0968_6269_MNT_O_0M50_LAMB93_IGN69": "2025-03-24", "LHD_FXX_0969_6268_MNT_O_0M50_LAMB93_IGN69": "2025-03-24", "LHD_FXX_0969_6269_MNT_O_0M50_LAMB93_IGN69": "2025-03-24" }, "climb_origin": "discovered", "structure_own_ways": 2, "carriageway": { "stations": 39, "stations_resolved": 39, "width_median_m": 5.5, "width_p10_m": 3.7, "width_min_m": 2.5, "width_max_m": 11.0, "bounded_share": 0.205, "unbounded_share": 0.795, "confidence_median": 0.0, "width_median_bounded_m": 5.25, "window_m": [ 216.0, 241.0 ], "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": 39, "stations_resolved": 39, "width_median_m": 2.5, "width_p10_m": 1.0, "width_min_m": 0.5, "width_max_m": 8.25, "bounded_share": 1.0, "unbounded_share": 0.0, "confidence_median": 1.0, "width_median_bounded_m": 2.5, "window_m": [ 216.0, 241.0 ], "width_at_max25_m": 2.25, "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": "Le Thoronet", "county": "Var", "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)" } }