{ "ocl_version": "0.1.0", "name": "All\u00e9e de la Boilerie", "slug": "allee-de-la-boilerie", "confidence": "B", "reported_claims": [], "ladder": [ { "window_m": 2.0, "max_gradient_pct": 28.090692644880733, "diagnostic": true, "flags": [ "structure_excluded", "structure_excluded_min", "canopy_or_structure" ], "start_distance_m": 65.0, "end_distance_m": 67.0, "start_elevation_m": 214.3160851883827, "end_elevation_m": 214.8778990412803, "min_gradient_pct": -13.627706681513985, "suppressed_max_gradient_pct": 125.27934357906645, "suppressed_location_m": [ 12.0, 14.0 ], "suppressed_min_gradient_pct": -25.266597405307323, "suppressed_min_location_m": [ 0.0, 2.0 ] }, { "window_m": 3.0, "max_gradient_pct": 23.136936153830828, "diagnostic": true, "flags": [ "structure_excluded", "structure_excluded_min" ], "start_distance_m": 190.0, "end_distance_m": 193.0, "start_elevation_m": 232.78141388160327, "end_elevation_m": 233.4755219662182, "min_gradient_pct": -12.169202084663766, "suppressed_max_gradient_pct": 123.61023395937518, "suppressed_location_m": [ 11.0, 14.0 ], "suppressed_min_gradient_pct": -16.85197011045337, "suppressed_min_location_m": [ 0.0, 3.0 ] }, { "window_m": 5.0, "max_gradient_pct": 22.485519913165035, "diagnostic": false, "flags": [ "structure_excluded" ], "start_distance_m": 196.0, "end_distance_m": 201.0, "start_elevation_m": 234.06684972691102, "end_elevation_m": 235.19112572256927, "min_gradient_pct": -10.614462898437864, "suppressed_max_gradient_pct": 85.16111013563886, "suppressed_location_m": [ 11.0, 16.0 ] }, { "window_m": 10.0, "max_gradient_pct": 21.80777122076279, "diagnostic": false, "flags": [ "structure_excluded" ], "start_distance_m": 190.0, "end_distance_m": 200.0, "start_elevation_m": 232.78141388160327, "end_elevation_m": 234.96219100367955, "min_gradient_pct": -8.970692670248752, "suppressed_max_gradient_pct": 64.20934591368564, "suppressed_location_m": [ 10.0, 20.0 ] }, { "window_m": 20.0, "max_gradient_pct": 21.393264508943304, "diagnostic": false, "flags": [ "structure_excluded" ], "start_distance_m": 186.0, "end_distance_m": 206.0, "start_elevation_m": 231.95537261576763, "end_elevation_m": 236.2340255175563, "min_gradient_pct": -6.995225903717284, "suppressed_max_gradient_pct": 33.29491176904298, "suppressed_location_m": [ 11.0, 31.0 ] }, { "window_m": 25.0, "max_gradient_pct": 20.989594356281714, "diagnostic": false, "flags": [ "structure_excluded" ], "start_distance_m": 183.0, "end_distance_m": 208.0, "start_elevation_m": 231.36438338020648, "end_elevation_m": 236.6117819692769, "min_gradient_pct": -6.6076488474776625, "suppressed_max_gradient_pct": 29.08065663885361, "suppressed_location_m": [ 11.0, 36.0 ] }, { "window_m": 50.0, "max_gradient_pct": 19.310642623265494, "diagnostic": false, "flags": [ "structure_excluded", "canopy_or_structure" ], "start_distance_m": 168.0, "end_distance_m": 218.0, "start_elevation_m": 228.89890021185954, "end_elevation_m": 238.5542215234923, "min_gradient_pct": -5.187163960295777, "suppressed_max_gradient_pct": 21.051118888666398, "suppressed_location_m": [ 11.0, 61.0 ] }, { "window_m": 100.0, "max_gradient_pct": 17.333303197443968, "diagnostic": false, "flags": [ "structure_excluded", "canopy_or_structure" ], "start_distance_m": 150.0, "end_distance_m": 250.0, "start_elevation_m": 226.44110029835286, "end_elevation_m": 243.77440349579683, "min_gradient_pct": -2.694428537858073, "suppressed_max_gradient_pct": 17.744069593561193, "suppressed_location_m": [ 11.0, 111.0 ] } ], "shape": { "ascent_concentration": 0.559, "concentration_window_frac": 0.25, "longest_pitch_10pct_m": 216.0, "shape_class": "stepped" }, "length_m": 975.2542216855048, "start_elevation_m": 203.7771906555027, "end_elevation_m": 272.90694924865704, "endpoint_gain_m": 69.12975859315435, "overall_gradient_pct": 7.088383424137278, "accumulated_ascent_m": 74.86157972452523, "window_maxima": { "max_5m": { "gradient_pct": 22.485519913165035, "start_distance_m": 196.0, "end_distance_m": 201.0, "midpoint_distance_m": 198.5, "start_elevation_m": 234.06684972691102, "end_elevation_m": 235.19112572256927, "start_xy": [ 553931.478661313, 6528075.194383245 ], "end_xy": [ 553935.871906125, 6528077.581724867 ] }, "max_10m": { "gradient_pct": 21.80777122076279, "start_distance_m": 190.0, "end_distance_m": 200.0, "midpoint_distance_m": 195.0, "start_elevation_m": 232.78141388160327, "end_elevation_m": 234.96219100367955, "start_xy": [ 553926.2067675384, 6528072.329573298 ], "end_xy": [ 553934.9932571626, 6528077.104256542 ] }, "max_20m": { "gradient_pct": 21.393264508943304, "start_distance_m": 186.0, "end_distance_m": 206.0, "midpoint_distance_m": 196.0, "start_elevation_m": 231.95537261576763, "end_elevation_m": 236.2340255175563, "start_xy": [ 553922.6921716888, 6528070.4197 ], "end_xy": [ 553940.2651509371, 6528079.9690664895 ] }, "max_25m": { "gradient_pct": 20.989594356281714, "start_distance_m": 183.0, "end_distance_m": 208.0, "midpoint_distance_m": 195.5, "start_elevation_m": 231.36438338020648, "end_elevation_m": 236.6117819692769, "start_xy": [ 553920.0562248015, 6528068.987295027 ], "end_xy": [ 553942.1434585733, 6528080.17203952 ] }, "max_50m": { "gradient_pct": 19.310642623265494, "start_distance_m": 168.0, "end_distance_m": 218.0, "midpoint_distance_m": 193.0, "start_elevation_m": 228.89890021185954, "end_elevation_m": 238.5542215234923, "start_xy": [ 553906.8764903651, 6528061.825270161 ], "end_xy": [ 553951.9842907753, 6528078.3949572 ] }, "max_100m": { "gradient_pct": 17.333303197443968, "start_distance_m": 150.0, "end_distance_m": 250.0, "midpoint_distance_m": 200.0, "start_elevation_m": 226.44110029835286, "end_elevation_m": 243.77440349579683, "start_xy": [ 553891.0608090416, 6528053.230840321 ], "end_xy": [ 553966.4747378773, 6528051.075237081 ] } }, "window_minima": { "min_5m": { "gradient_pct": -10.614462898437864, "start_distance_m": 404.0, "end_distance_m": 409.0, "midpoint_distance_m": 406.5, "start_elevation_m": 246.95725839188344, "end_elevation_m": 246.42653524696155, "start_xy": [ 554077.5715061578, 6527945.5385215655 ], "end_xy": [ 554081.3885892554, 6527942.329149239 ] }, "min_10m": { "gradient_pct": -8.970692670248752, "start_distance_m": 399.0, "end_distance_m": 409.0, "midpoint_distance_m": 404.0, "start_elevation_m": 247.32360451398642, "end_elevation_m": 246.42653524696155, "start_xy": [ 554073.830317577, 6527948.855675166 ], "end_xy": [ 554081.3885892554, 6527942.329149239 ] }, "min_20m": { "gradient_pct": -6.995225903717284, "start_distance_m": 396.0, "end_distance_m": 416.0, "midpoint_distance_m": 406.0, "start_elevation_m": 247.4793658561915, "end_elevation_m": 246.08032067544804, "start_xy": [ 554071.5856044285, 6527950.845967325 ], "end_xy": [ 554087.526218663, 6527938.963216195 ] }, "min_25m": { "gradient_pct": -6.6076488474776625, "start_distance_m": 395.0, "end_distance_m": 420.0, "midpoint_distance_m": 407.5, "start_elevation_m": 247.5304785225892, "end_elevation_m": 245.87856631071978, "start_xy": [ 554070.8373667124, 6527951.509398045 ], "end_xy": [ 554091.0334354673, 6527937.039825885 ] }, "min_50m": { "gradient_pct": -5.187163960295777, "start_distance_m": 380.0, "end_distance_m": 430.0, "midpoint_distance_m": 405.0, "start_elevation_m": 248.05202340636512, "end_elevation_m": 245.45844142621723, "start_xy": [ 554059.6138009699, 6527961.460858843 ], "end_xy": [ 554099.801477478, 6527932.231350107 ] }, "min_100m": { "gradient_pct": -2.694428537858073, "start_distance_m": 347.0, "end_distance_m": 447.0, "midpoint_distance_m": 397.0, "start_elevation_m": 248.17110883365052, "end_elevation_m": 245.47668029579245, "start_xy": [ 554034.9219563366, 6527983.354072601 ], "end_xy": [ 554115.7156009516, 6527927.156045383 ] } }, "diagnostic_window_maxima": { "max_2m": { "gradient_pct": 28.090692644880733, "start_distance_m": 65.0, "end_distance_m": 67.0, "midpoint_distance_m": 66.0, "start_elevation_m": 214.3160851883827, "end_elevation_m": 214.8778990412803, "start_xy": [ 553816.5308032291, 6528012.368332131 ], "end_xy": [ 553818.2651973212, 6528013.364262417 ] }, "max_3m": { "gradient_pct": 23.136936153830828, "start_distance_m": 190.0, "end_distance_m": 193.0, "midpoint_distance_m": 191.5, "start_elevation_m": 232.78141388160327, "end_elevation_m": 233.4755219662182, "start_xy": [ 553926.2067675384, 6528072.329573298 ], "end_xy": [ 553928.8427144256, 6528073.761978271 ] } }, "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": 0.036, "windows_resited": [ 2.0, 3.0, 5.0, 10.0, 20.0, 25.0, 50.0, 100.0 ], "windows_unresolved": [], "minima_resited": [ 2.0, 3.0 ], "minima_unresolved": [] }, "overhead_obstruction": { "obstruction_threshold_m": 2.0, "obstructed_fraction": 0.357, "obstruction_max_height_m": 24.44, "flagged_windows_m": [ 2, 50, 100 ] }, "excluded_ranges_m": [ [ 0.0, 28.0 ], [ 44.0, 49.0 ] ], "review": [], "extent": [ "may_start_earlier" ] }, "provenance": { "analysis_version": "0.1.0", "run_manifest": { "manifest_version": "1", "code_git_sha": "1cc9fdcd6556a02163cb21acb2293cad3067d2a1", "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-mc1", "road_pbf": "block-batch-fr-mc1.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_E553-N6527_0m5@21LHD2IL-2025-08-06.tif", "data/cache/fr/ign-lidarhd_dtm_E553-N6528_0m5@21LHD2IL-2025-08-06.tif", "data/cache/fr/ign-lidarhd_dtm_E554-N6527_0m5@21LHD2IL-2025-08-06.tif", "data/cache/fr/ign-lidarhd_dtm_E554-N6528_0m5@21LHD2IL-2025-08-06.tif" ], "calculated_at": "2026-09-22T16:18:47+00:00", "road_source": "OpenStreetMap (local PBF extract)", "road_attribution": "\u00a9 OpenStreetMap contributors, ODbL", "osm_pbf_path": "data/cache/pbf/block-batch-fr-mc1.osm.pbf", "osm_snapshot": "", "run_id": "fr-mc1", "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": [ "E553-N6527", "E553-N6528", "E554-N6527", "E554-N6528" ], "elevation_blocks": [ "21LHD2IL@2025-08-06" ], "ign_dalles": [ "LHD_FXX_0553_6528_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0553_6529_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0554_6528_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0554_6529_MNT_O_0M50_LAMB93_IGN69" ], "ign_missions": [ "21LHD2IL" ], "ign_editions": [ "2025-08-06" ], "ign_dsm_edition": { "LHD_FXX_0553_6528_MNT_O_0M50_LAMB93_IGN69": "2025-08-06", "LHD_FXX_0553_6529_MNT_O_0M50_LAMB93_IGN69": "2025-08-06", "LHD_FXX_0554_6528_MNT_O_0M50_LAMB93_IGN69": "2025-08-06", "LHD_FXX_0554_6529_MNT_O_0M50_LAMB93_IGN69": "2025-08-06" }, "climb_origin": "discovered", "structure_own_ways": 3, "structure_mask_ranges_m": [ [ 0.0, 16.5 ], [ 0.0, 22.9 ], [ 0.0, 24.0 ] ], "carriageway": { "stations": 46, "stations_resolved": 46, "width_median_m": 5.75, "width_p10_m": 4.25, "width_min_m": 1.25, "width_max_m": 11.75, "bounded_share": 0.261, "unbounded_share": 0.739, "confidence_median": 0.0, "width_median_bounded_m": 5.62, "window_m": [ 183.0, 208.0 ], "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": 46, "stations_resolved": 46, "width_median_m": 4.75, "width_p10_m": 0.75, "width_min_m": 0.0, "width_max_m": 12.0, "bounded_share": 0.804, "unbounded_share": 0.196, "confidence_median": 1.0, "width_median_bounded_m": 3.25, "window_m": [ 183.0, 208.0 ], "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": "Verneuil-sur-Vienne", "county": "Haute-Vienne", "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)" } }