{ "ocl_version": "0.1.0", "name": "Chemin de la Salseparreille", "slug": "chemin-de-la-salseparreille", "confidence": "B", "reported_claims": [], "ladder": [ { "window_m": 2.0, "max_gradient_pct": 44.708330113441264, "diagnostic": true, "flags": [], "start_distance_m": 446.0, "end_distance_m": 448.0, "start_elevation_m": 220.6737827233867, "end_elevation_m": 221.56794932565552, "min_gradient_pct": -9.405831990179081 }, { "window_m": 3.0, "max_gradient_pct": 40.747023184607656, "diagnostic": true, "flags": [ "canopy_or_structure" ], "start_distance_m": 413.0, "end_distance_m": 416.0, "start_elevation_m": 213.49091686446084, "end_elevation_m": 214.71332755999907, "min_gradient_pct": -1.7187659096559098 }, { "window_m": 5.0, "max_gradient_pct": 37.38339811276887, "diagnostic": false, "flags": [], "start_distance_m": 446.0, "end_distance_m": 451.0, "start_elevation_m": 220.6737827233867, "end_elevation_m": 222.54295262902514, "min_gradient_pct": 1.4943871713433055 }, { "window_m": 10.0, "max_gradient_pct": 29.70904739261698, "diagnostic": false, "flags": [], "start_distance_m": 441.0, "end_distance_m": 451.0, "start_elevation_m": 219.57204788976344, "end_elevation_m": 222.54295262902514, "min_gradient_pct": 1.802260260120363 }, { "window_m": 20.0, "max_gradient_pct": 25.43653794566353, "diagnostic": false, "flags": [ "canopy_or_structure" ], "start_distance_m": 404.0, "end_distance_m": 424.0, "start_elevation_m": 211.64829064561587, "end_elevation_m": 216.73559823474858, "min_gradient_pct": 1.8908221451732743 }, { "window_m": 25.0, "max_gradient_pct": 24.600023978668105, "diagnostic": false, "flags": [ "canopy_or_structure" ], "start_distance_m": 399.0, "end_distance_m": 424.0, "start_elevation_m": 210.58559224008155, "end_elevation_m": 216.73559823474858, "min_gradient_pct": 1.9266179004073365 }, { "window_m": 50.0, "max_gradient_pct": 23.12401947208019, "diagnostic": false, "flags": [ "canopy_or_structure" ], "start_distance_m": 401.0, "end_distance_m": 451.0, "start_elevation_m": 210.98094289298504, "end_elevation_m": 222.54295262902514, "min_gradient_pct": 2.058079921412059 }, { "window_m": 100.0, "max_gradient_pct": 20.12354195684088, "diagnostic": false, "flags": [], "start_distance_m": 364.0, "end_distance_m": 464.0, "start_elevation_m": 204.80793205917206, "end_elevation_m": 224.93147401601294, "min_gradient_pct": 2.24746227620372 } ], "shape": { "ascent_concentration": 0.509, "concentration_window_frac": 0.25, "longest_pitch_10pct_m": 123.0, "shape_class": "stepped" }, "length_m": 591.1643316377779, "start_elevation_m": 187.96671083678748, "end_elevation_m": 238.20853937989824, "endpoint_gain_m": 50.241828543110756, "overall_gradient_pct": 8.498792273870688, "accumulated_ascent_m": 50.6611175073634, "window_maxima": { "max_5m": { "gradient_pct": 37.38339811276887, "start_distance_m": 446.0, "end_distance_m": 451.0, "midpoint_distance_m": 448.5, "start_elevation_m": 220.6737827233867, "end_elevation_m": 222.54295262902514, "start_xy": [ 926873.4133421503, 6237026.13811541 ], "end_xy": [ 926868.5784061854, 6237027.412240292 ] }, "max_10m": { "gradient_pct": 29.70904739261698, "start_distance_m": 441.0, "end_distance_m": 451.0, "midpoint_distance_m": 446.0, "start_elevation_m": 219.57204788976344, "end_elevation_m": 222.54295262902514, "start_xy": [ 926878.2482781153, 6237024.863990528 ], "end_xy": [ 926868.5784061854, 6237027.412240292 ] }, "max_20m": { "gradient_pct": 25.43653794566353, "start_distance_m": 404.0, "end_distance_m": 424.0, "midpoint_distance_m": 414.0, "start_elevation_m": 211.64829064561587, "end_elevation_m": 216.73559823474858, "start_xy": [ 926913.8447133845, 6237014.781023372 ], "end_xy": [ 926894.6227796491, 6237020.3031728 ] }, "max_25m": { "gradient_pct": 24.600023978668105, "start_distance_m": 399.0, "end_distance_m": 424.0, "midpoint_distance_m": 411.5, "start_elevation_m": 210.58559224008155, "end_elevation_m": 216.73559823474858, "start_xy": [ 926918.5835451498, 6237013.210033508 ], "end_xy": [ 926894.6227796491, 6237020.3031728 ] }, "max_50m": { "gradient_pct": 23.12401947208019, "start_distance_m": 401.0, "end_distance_m": 451.0, "midpoint_distance_m": 426.0, "start_elevation_m": 210.98094289298504, "end_elevation_m": 222.54295262902514, "start_xy": [ 926916.7301806052, 6237013.961724845 ], "end_xy": [ 926868.5784061854, 6237027.412240292 ] }, "max_100m": { "gradient_pct": 20.12354195684088, "start_distance_m": 364.0, "end_distance_m": 464.0, "midpoint_distance_m": 414.0, "start_elevation_m": 204.80793205917206, "end_elevation_m": 224.93147401601294, "start_xy": [ 926951.1617896224, 6237000.54392199 ], "end_xy": [ 926856.6398720691, 6237032.337097192 ] } }, "window_minima": { "min_5m": { "gradient_pct": 1.4943871713433055, "start_distance_m": 82.0, "end_distance_m": 87.0, "midpoint_distance_m": 84.5, "start_elevation_m": 189.83758615460025, "end_elevation_m": 189.9123055131674, "start_xy": [ 927215.3293739066, 6237036.803701194 ], "end_xy": [ 927210.9191889167, 6237039.159601946 ] }, "min_10m": { "gradient_pct": 1.802260260120363, "start_distance_m": 11.0, "end_distance_m": 21.0, "midpoint_distance_m": 16.0, "start_elevation_m": 188.23067768563493, "end_elevation_m": 188.41090371164697, "start_xy": [ 927278.2932481631, 6237004.013285239 ], "end_xy": [ 927269.3098374021, 6237008.40627182 ] }, "min_20m": { "gradient_pct": 1.8908221451732743, "start_distance_m": 67.0, "end_distance_m": 87.0, "midpoint_distance_m": 77.0, "start_elevation_m": 189.53414108413276, "end_elevation_m": 189.9123055131674, "start_xy": [ 927228.5599288763, 6237029.735998937 ], "end_xy": [ 927210.9191889167, 6237039.159601946 ] }, "min_25m": { "gradient_pct": 1.9266179004073365, "start_distance_m": 64.0, "end_distance_m": 89.0, "midpoint_distance_m": 76.5, "start_elevation_m": 189.4684708528895, "end_elevation_m": 189.95012532799134, "start_xy": [ 927231.2060398703, 6237028.322458485 ], "end_xy": [ 927209.1551149207, 6237040.101962247 ] }, "min_50m": { "gradient_pct": 2.058079921412059, "start_distance_m": 47.0, "end_distance_m": 97.0, "midpoint_distance_m": 72.0, "start_elevation_m": 189.09487144340545, "end_elevation_m": 190.12391140411148, "start_xy": [ 927246.200668836, 6237020.3123959275 ], "end_xy": [ 927202.0988189369, 6237043.871403451 ] }, "min_100m": { "gradient_pct": 2.24746227620372, "start_distance_m": 2.0, "end_distance_m": 102.0, "midpoint_distance_m": 52.0, "start_elevation_m": 188.0110786669805, "end_elevation_m": 190.25854094318422, "start_xy": [ 927286.3783178478, 6237000.059597316 ], "end_xy": [ 927197.6257439413, 6237046.080567631 ] } }, "diagnostic_window_maxima": { "max_2m": { "gradient_pct": 44.708330113441264, "start_distance_m": 446.0, "end_distance_m": 448.0, "midpoint_distance_m": 447.0, "start_elevation_m": 220.6737827233867, "end_elevation_m": 221.56794932565552, "start_xy": [ 926873.4133421503, 6237026.13811541 ], "end_xy": [ 926871.4793677643, 6237026.647765363 ] }, "max_3m": { "gradient_pct": 40.747023184607656, "start_distance_m": 413.0, "end_distance_m": 416.0, "midpoint_distance_m": 414.5, "start_elevation_m": 213.49091686446084, "end_elevation_m": 214.71332755999907, "start_xy": [ 926905.1798814958, 6237017.214269833 ], "end_xy": [ 926902.2916041994, 6237018.025351986 ] } }, "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": 0.132, "obstruction_max_height_m": 9.7, "flagged_windows_m": [ 3, 20, 25, 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-pr5", "road_pbf": "block-batch-fr-pr5.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_E926-N6236_0m5@21LHD7PQ-2025-03-14.tif", "data/cache/fr/ign-lidarhd_dtm_E926-N6237_0m5@21LHD7PQ-2025-03-14.tif", "data/cache/fr/ign-lidarhd_dtm_E927-N6236_0m5@21LHD7PQ-2025-03-14.tif", "data/cache/fr/ign-lidarhd_dtm_E927-N6237_0m5@21LHD7PQ-2025-03-14.tif" ], "calculated_at": "2026-09-25T08:56:27+00:00", "road_source": "OpenStreetMap (local PBF extract)", "road_attribution": "\u00a9 OpenStreetMap contributors, ODbL", "osm_pbf_path": "data/cache/pbf/block-batch-fr-pr5.osm.pbf", "osm_snapshot": "", "run_id": "fr-pr5", "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": [ "E926-N6236", "E926-N6237", "E927-N6236", "E927-N6237" ], "elevation_blocks": [ "21LHD7PQ@2025-03-14" ], "ign_dalles": [ "LHD_FXX_0926_6237_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0926_6238_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0927_6237_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0927_6238_MNT_O_0M50_LAMB93_IGN69" ], "ign_missions": [ "21LHD7PQ" ], "ign_editions": [ "2025-03-14" ], "ign_dsm_edition": { "LHD_FXX_0926_6237_MNT_O_0M50_LAMB93_IGN69": "2025-03-14", "LHD_FXX_0926_6238_MNT_O_0M50_LAMB93_IGN69": "2025-03-14", "LHD_FXX_0927_6237_MNT_O_0M50_LAMB93_IGN69": "2025-03-14", "LHD_FXX_0927_6238_MNT_O_0M50_LAMB93_IGN69": "2025-03-14" }, "climb_origin": "discovered", "structure_own_ways": 3, "carriageway": { "stations": 30, "stations_resolved": 30, "width_median_m": 4.0, "width_p10_m": 2.25, "width_min_m": 1.25, "width_max_m": 10.5, "bounded_share": 0.3, "unbounded_share": 0.7, "confidence_median": 0.0, "width_median_bounded_m": 2.5, "window_m": [ 399.0, 424.0 ], "width_at_max25_m": 3.0, "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": 30, "stations_resolved": 30, "width_median_m": 4.38, "width_p10_m": 1.45, "width_min_m": 0.5, "width_max_m": 10.75, "bounded_share": 0.8, "unbounded_share": 0.2, "confidence_median": 1.0, "width_median_bounded_m": 3.5, "window_m": [ 399.0, 424.0 ], "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 Beausset", "county": "Var", "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)" } }