{ "ocl_version": "0.1.0", "name": "Route de Montesquieu Volvestre", "slug": "route-de-montesquieu-volvestre", "confidence": "B", "reported_claims": [], "ladder": [ { "window_m": 2.0, "max_gradient_pct": 26.542987369566617, "diagnostic": true, "flags": [ "structure_excluded", "structure_excluded_min", "canopy_or_structure" ], "start_distance_m": 3792.0, "end_distance_m": 3794.0, "start_elevation_m": 375.44667376796815, "end_elevation_m": 375.9775335153595, "min_gradient_pct": -6.9947539943541415, "suppressed_max_gradient_pct": 133.07288408100248, "suppressed_location_m": [ 1649.0, 1651.0 ], "suppressed_min_gradient_pct": -112.55063450025204, "suppressed_min_location_m": [ 1640.0, 1642.0 ] }, { "window_m": 3.0, "max_gradient_pct": 26.201944985041337, "diagnostic": true, "flags": [ "structure_excluded", "structure_excluded_min", "canopy_or_structure" ], "start_distance_m": 3797.0, "end_distance_m": 3800.0, "start_elevation_m": 376.7009704171113, "end_elevation_m": 377.48702876666255, "min_gradient_pct": -6.023241639250425, "suppressed_max_gradient_pct": 132.85404557450798, "suppressed_location_m": [ 1648.0, 1651.0 ], "suppressed_min_gradient_pct": -112.50581320602653, "suppressed_min_location_m": [ 1640.0, 1643.0 ] }, { "window_m": 5.0, "max_gradient_pct": 25.50562834706625, "diagnostic": false, "flags": [ "structure_excluded", "structure_excluded_min", "canopy_or_structure" ], "start_distance_m": 3797.0, "end_distance_m": 3802.0, "start_elevation_m": 376.7009704171113, "end_elevation_m": 377.9762518344646, "min_gradient_pct": -5.570863974866143, "suppressed_max_gradient_pct": 118.40167299157088, "suppressed_location_m": [ 1647.0, 1652.0 ], "suppressed_min_gradient_pct": -110.99133373216432, "suppressed_min_location_m": [ 1639.0, 1644.0 ] }, { "window_m": 10.0, "max_gradient_pct": 25.295780664964695, "diagnostic": false, "flags": [ "structure_excluded", "structure_excluded_min", "canopy_or_structure" ], "start_distance_m": 3792.0, "end_distance_m": 3802.0, "start_elevation_m": 375.44667376796815, "end_elevation_m": 377.9762518344646, "min_gradient_pct": -5.5023003823106365, "suppressed_max_gradient_pct": 61.38383530320823, "suppressed_location_m": [ 1645.0, 1655.0 ], "suppressed_min_gradient_pct": -58.88977669119413, "suppressed_min_location_m": [ 1635.0, 1645.0 ] }, { "window_m": 20.0, "max_gradient_pct": 23.88667669031662, "diagnostic": false, "flags": [ "structure_excluded", "structure_excluded_min", "canopy_or_structure" ], "start_distance_m": 3792.0, "end_distance_m": 3812.0, "start_elevation_m": 375.44667376796815, "end_elevation_m": 380.2240091060315, "min_gradient_pct": -5.265224095409735, "suppressed_max_gradient_pct": 31.798993582259243, "suppressed_location_m": [ 1645.0, 1665.0 ], "suppressed_min_gradient_pct": -29.144916103650473, "suppressed_min_location_m": [ 1625.0, 1645.0 ] }, { "window_m": 25.0, "max_gradient_pct": 22.86261403754088, "diagnostic": false, "flags": [ "structure_excluded", "structure_excluded_min", "canopy_or_structure" ], "start_distance_m": 3787.0, "end_distance_m": 3812.0, "start_elevation_m": 374.50835559664625, "end_elevation_m": 380.2240091060315, "min_gradient_pct": -5.2355330994232645, "suppressed_max_gradient_pct": 25.902456111076617, "suppressed_location_m": [ 1645.0, 1670.0 ], "suppressed_min_gradient_pct": -23.357810771984987, "suppressed_min_location_m": [ 1620.0, 1645.0 ] }, { "window_m": 50.0, "max_gradient_pct": 19.844994744603127, "diagnostic": false, "flags": [ "structure_excluded_min" ], "start_distance_m": 3762.0, "end_distance_m": 3812.0, "start_elevation_m": 370.3015117337299, "end_elevation_m": 380.2240091060315, "min_gradient_pct": -5.029734738677462, "suppressed_min_gradient_pct": -12.022680717864205, "suppressed_min_location_m": [ 1595.0, 1645.0 ] }, { "window_m": 100.0, "max_gradient_pct": 17.34167857679705, "diagnostic": false, "flags": [ "structure_excluded_min" ], "start_distance_m": 3712.0, "end_distance_m": 3812.0, "start_elevation_m": 362.8823305292344, "end_elevation_m": 380.2240091060315, "min_gradient_pct": -4.559924584293185, "suppressed_min_gradient_pct": -6.006196319657192, "suppressed_min_location_m": [ 1545.0, 1645.0 ] } ], "shape": { "ascent_concentration": 0.435, "concentration_window_frac": 0.25, "longest_pitch_10pct_m": 108.0, "shape_class": "sustained" }, "length_m": 3814.6219313793604, "start_elevation_m": 263.9703078222693, "end_elevation_m": 380.4936919433536, "endpoint_gain_m": 116.52338412108429, "overall_gradient_pct": 3.0546509252346707, "accumulated_ascent_m": 142.33945246847304, "window_maxima": { "max_5m": { "gradient_pct": 25.50562834706625, "start_distance_m": 3797.0, "end_distance_m": 3802.0, "midpoint_distance_m": 3799.5, "start_elevation_m": 376.7009704171113, "end_elevation_m": 377.9762518344646, "start_xy": [ 547760.3293362143, 6234021.280792836 ], "end_xy": [ 547755.3792570723, 6234020.576011674 ] }, "max_10m": { "gradient_pct": 25.295780664964695, "start_distance_m": 3792.0, "end_distance_m": 3802.0, "midpoint_distance_m": 3797.0, "start_elevation_m": 375.44667376796815, "end_elevation_m": 377.9762518344646, "start_xy": [ 547765.0096788699, 6234022.913864133 ], "end_xy": [ 547755.3792570723, 6234020.576011674 ] }, "max_20m": { "gradient_pct": 23.88667669031662, "start_distance_m": 3792.0, "end_distance_m": 3812.0, "midpoint_distance_m": 3802.0, "start_elevation_m": 375.44667376796815, "end_elevation_m": 380.2240091060315, "start_xy": [ 547765.0096788699, 6234022.913864133 ], "end_xy": [ 547745.5850292165, 6234018.662223488 ] }, "max_25m": { "gradient_pct": 22.86261403754088, "start_distance_m": 3787.0, "end_distance_m": 3812.0, "midpoint_distance_m": 3799.5, "start_elevation_m": 374.50835559664625, "end_elevation_m": 380.2240091060315, "start_xy": [ 547769.5666326678, 6234024.971574532 ], "end_xy": [ 547745.5850292165, 6234018.662223488 ] }, "max_50m": { "gradient_pct": 19.844994744603127, "start_distance_m": 3762.0, "end_distance_m": 3812.0, "midpoint_distance_m": 3787.0, "start_elevation_m": 370.3015117337299, "end_elevation_m": 380.2240091060315, "start_xy": [ 547788.663268214, 6234041.034236312 ], "end_xy": [ 547745.5850292165, 6234018.662223488 ] }, "max_100m": { "gradient_pct": 17.34167857679705, "start_distance_m": 3712.0, "end_distance_m": 3812.0, "midpoint_distance_m": 3762.0, "start_elevation_m": 362.8823305292344, "end_elevation_m": 380.2240091060315, "start_xy": [ 547821.5330893109, 6234078.623190689 ], "end_xy": [ 547745.5850292165, 6234018.662223488 ] } }, "window_minima": { "min_5m": { "gradient_pct": -5.570863974866143, "start_distance_m": 3470.0, "end_distance_m": 3475.0, "midpoint_distance_m": 3472.5, "start_elevation_m": 363.14928762761684, "end_elevation_m": 362.87074442887354, "start_xy": [ 547933.0852712282, 6234292.3728667125 ], "end_xy": [ 547931.1392490953, 6234287.767109678 ] }, "min_10m": { "gradient_pct": -5.5023003823106365, "start_distance_m": 3466.0, "end_distance_m": 3476.0, "midpoint_distance_m": 3471.0, "start_elevation_m": 363.36576020893, "end_elevation_m": 362.81553017069893, "start_xy": [ 547934.6420889347, 6234296.05747234 ], "end_xy": [ 547930.7500446687, 6234286.845958271 ] }, "min_20m": { "gradient_pct": -5.265224095409735, "start_distance_m": 3466.0, "end_distance_m": 3486.0, "midpoint_distance_m": 3476.0, "start_elevation_m": 363.36576020893, "end_elevation_m": 362.31271538984805, "start_xy": [ 547934.6420889347, 6234296.05747234 ], "end_xy": [ 547926.857934798, 6234277.634471926 ] }, "min_25m": { "gradient_pct": -5.2355330994232645, "start_distance_m": 3465.0, "end_distance_m": 3490.0, "midpoint_distance_m": 3477.5, "start_elevation_m": 363.41966336138194, "end_elevation_m": 362.1107800865261, "start_xy": [ 547935.0312933612, 6234296.978623747 ], "end_xy": [ 547925.300733126, 6234273.9500285555 ] }, "min_50m": { "gradient_pct": -5.029734738677462, "start_distance_m": 3440.0, "end_distance_m": 3490.0, "midpoint_distance_m": 3465.0, "start_elevation_m": 364.62564745586485, "end_elevation_m": 362.1107800865261, "start_xy": [ 547944.7614040262, 6234320.007408917 ], "end_xy": [ 547925.300733126, 6234273.9500285555 ] }, "min_100m": { "gradient_pct": -4.559924584293185, "start_distance_m": 3431.0, "end_distance_m": 3531.0, "midpoint_distance_m": 3481.0, "start_elevation_m": 364.97149081252644, "end_elevation_m": 360.41156622823326, "start_xy": [ 547948.2642438655, 6234328.297771579 ], "end_xy": [ 547908.7543897374, 6234236.439070434 ] } }, "diagnostic_window_maxima": { "max_2m": { "gradient_pct": 26.542987369566617, "start_distance_m": 3792.0, "end_distance_m": 3794.0, "midpoint_distance_m": 3793.0, "start_elevation_m": 375.44667376796815, "end_elevation_m": 375.9775335153595, "start_xy": [ 547765.0096788699, 6234022.913864133 ], "end_xy": [ 547763.1868973507, 6234022.090779974 ] }, "max_3m": { "gradient_pct": 26.201944985041337, "start_distance_m": 3797.0, "end_distance_m": 3800.0, "midpoint_distance_m": 3798.5, "start_elevation_m": 376.7009704171113, "end_elevation_m": 377.48702876666255, "start_xy": [ 547760.3293362143, 6234021.280792836 ], "end_xy": [ 547757.3592887291, 6234020.857924138 ] } }, "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": 0.012, "windows_resited": [ 2.0, 3.0, 5.0, 10.0, 20.0, 25.0 ], "windows_unresolved": [], "minima_resited": [ 2.0, 3.0, 5.0, 10.0, 20.0, 25.0, 50.0, 100.0 ], "minima_unresolved": [] }, "overhead_obstruction": { "obstruction_threshold_m": 2.0, "obstructed_fraction": 0.03, "obstruction_max_height_m": 14.3, "flagged_windows_m": [ 2, 3, 5, 10, 20, 25 ] }, "excluded_ranges_m": [ [ 0.0, 20.0 ], [ 1634.0, 1657.0 ] ], "review": [], "extent": [ "may_continue_beyond_end" ] }, "provenance": { "analysis_version": "0.1.0", "run_manifest": { "manifest_version": "1", "code_git_sha": "937d2a005af5491e462567d7f33ab563f033918b", "code_git_dirty": "false", "analysis_version": "0.1.0", "analysis_config_digest": "sha256:0048c2bbb24ab95e", "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-pyr3", "road_pbf": "block-batch-fr-pyr3.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": "sha256:79dd257545ed11dc" }, "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_E547-N6233_0m5@22LHD1IQ-2024-12-20.tif", "data/cache/fr/ign-lidarhd_dtm_E547-N6234_0m5@22LHD1IQ-2024-12-20.tif", "data/cache/fr/ign-lidarhd_dtm_E548-N6233_0m5@22LHD1IQ-2024-12-20.tif", "data/cache/fr/ign-lidarhd_dtm_E548-N6234_0m5@22LHD1IQ-2024-12-20.tif", "data/cache/fr/ign-lidarhd_dtm_E549-N6234_0m5@22LHD1IQ-2024-12-20.tif", "data/cache/fr/ign-lidarhd_dtm_E549-N6235_0m5@22LHD1IQ-2024-12-20.tif", "data/cache/fr/ign-lidarhd_dtm_E550-N6234_0m5@22LHD1IQ-2024-12-20.tif", "data/cache/fr/ign-lidarhd_dtm_E550-N6235_0m5@22LHD1IQ-2024-12-20.tif" ], "calculated_at": "2026-09-20T08:57:25+00:00", "road_source": "OpenStreetMap (local PBF extract)", "road_attribution": "\u00a9 OpenStreetMap contributors, ODbL", "osm_pbf_path": "data/cache/pbf/block-batch-fr-pyr3.osm.pbf", "osm_snapshot": "", "run_id": "fr-pyr3", "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": [ "E547-N6233", "E547-N6234", "E548-N6233", "E548-N6234", "E549-N6234", "E549-N6235", "E550-N6234", "E550-N6235" ], "elevation_blocks": [ "22LHD1IQ@2024-12-20" ], "ign_dalles": [ "LHD_FXX_0547_6234_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0547_6235_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0548_6234_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0548_6235_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0549_6235_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0549_6236_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0550_6235_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0550_6236_MNT_O_0M50_LAMB93_IGN69" ], "ign_missions": [ "22LHD1IQ" ], "ign_editions": [ "2024-12-20" ], "ign_dsm_edition": { "LHD_FXX_0547_6234_MNT_O_0M50_LAMB93_IGN69": "2024-12-20", "LHD_FXX_0547_6235_MNT_O_0M50_LAMB93_IGN69": "2024-12-20", "LHD_FXX_0548_6234_MNT_O_0M50_LAMB93_IGN69": "2024-12-20", "LHD_FXX_0548_6235_MNT_O_0M50_LAMB93_IGN69": "2024-12-20", "LHD_FXX_0549_6235_MNT_O_0M50_LAMB93_IGN69": "2024-12-20", "LHD_FXX_0549_6236_MNT_O_0M50_LAMB93_IGN69": "2024-12-20", "LHD_FXX_0550_6235_MNT_O_0M50_LAMB93_IGN69": "2024-12-20", "LHD_FXX_0550_6236_MNT_O_0M50_LAMB93_IGN69": "2024-12-20" }, "climb_origin": "discovered", "structure_own_ways": 2, "structure_mask_ranges_m": [ [ 0.0, 15.0 ] ], "carriageway": { "stations": 159, "stations_resolved": 159, "width_median_m": 8.25, "width_p10_m": 6.95, "width_min_m": 2.25, "width_max_m": 12.0, "bounded_share": 0.182, "unbounded_share": 0.818, "confidence_median": 0.0, "width_median_bounded_m": 8.25, "window_m": [ 3787.0, 3812.0 ], "width_at_max25_m": 4.75, "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": 159, "stations_resolved": 159, "width_median_m": 10.25, "width_p10_m": 4.4, "width_min_m": 0.5, "width_max_m": 12.0, "bounded_share": 0.421, "unbounded_share": 0.579, "confidence_median": 0.0, "width_median_bounded_m": 7.0, "window_m": [ 3787.0, 3812.0 ], "width_at_max25_m": 4.5, "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": "Saint-Christaud", "county": "Haute-Garonne", "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)" } }