{ "ocl_version": "0.1.0", "name": "Chemin d'Antin La Riberre", "slug": "chemin-d-antin-la-riberre", "confidence": "B", "reported_claims": [], "ladder": [ { "window_m": 2.0, "max_gradient_pct": 23.87827906318023, "diagnostic": true, "flags": [ "structure_excluded", "canopy_or_structure" ], "start_distance_m": 559.0, "end_distance_m": 561.0, "start_elevation_m": 293.5673117416281, "end_elevation_m": 294.0448773228917, "min_gradient_pct": -6.9043322809420715, "suppressed_max_gradient_pct": 33.90941121406854, "suppressed_location_m": [ 0.0, 2.0 ] }, { "window_m": 3.0, "max_gradient_pct": 22.46299803265212, "diagnostic": true, "flags": [ "structure_excluded" ], "start_distance_m": 537.0, "end_distance_m": 540.0, "start_elevation_m": 289.2795170655135, "end_elevation_m": 289.9534070064931, "min_gradient_pct": -5.192264161111855, "suppressed_max_gradient_pct": 23.16739850979843, "suppressed_location_m": [ 0.0, 3.0 ] }, { "window_m": 5.0, "max_gradient_pct": 21.65576743060342, "diagnostic": false, "flags": [ "canopy_or_structure" ], "start_distance_m": 535.0, "end_distance_m": 540.0, "start_elevation_m": 288.8706186349629, "end_elevation_m": 289.9534070064931, "min_gradient_pct": 0.3434345049231524 }, { "window_m": 10.0, "max_gradient_pct": 21.250704072116378, "diagnostic": false, "flags": [ "canopy_or_structure" ], "start_distance_m": 533.0, "end_distance_m": 543.0, "start_elevation_m": 288.43170596591176, "end_elevation_m": 290.5567763731234, "min_gradient_pct": 0.6749110818202553 }, { "window_m": 20.0, "max_gradient_pct": 20.571687561944998, "diagnostic": false, "flags": [ "canopy_or_structure" ], "start_distance_m": 527.0, "end_distance_m": 547.0, "start_elevation_m": 287.2418497683282, "end_elevation_m": 291.3561872807172, "min_gradient_pct": 0.8989797045597925 }, { "window_m": 25.0, "max_gradient_pct": 20.251859664408585, "diagnostic": false, "flags": [ "canopy_or_structure" ], "start_distance_m": 524.0, "end_distance_m": 549.0, "start_elevation_m": 286.6631523230968, "end_elevation_m": 291.72611723919897, "min_gradient_pct": 0.9599788251200607 }, { "window_m": 50.0, "max_gradient_pct": 20.0713324755518, "diagnostic": false, "flags": [ "canopy_or_structure" ], "start_distance_m": 524.0, "end_distance_m": 574.0, "start_elevation_m": 286.6631523230968, "end_elevation_m": 296.6988185608727, "min_gradient_pct": 1.3068777534098217 }, { "window_m": 100.0, "max_gradient_pct": 19.183295459440387, "diagnostic": false, "flags": [ "canopy_or_structure" ], "start_distance_m": 475.0, "end_distance_m": 575.0, "start_elevation_m": 277.70219454146843, "end_elevation_m": 296.8854900009088, "min_gradient_pct": 2.0461417579077192 } ], "shape": { "ascent_concentration": 0.561, "concentration_window_frac": 0.25, "longest_pitch_10pct_m": 308.0, "shape_class": "stepped" }, "length_m": 1152.0000000004165, "start_elevation_m": 256.12241320362267, "end_elevation_m": 344.25296200842376, "endpoint_gain_m": 88.1305488048011, "overall_gradient_pct": 7.6502212504139955, "accumulated_ascent_m": 88.78428916888771, "window_maxima": { "max_5m": { "gradient_pct": 21.65576743060342, "start_distance_m": 535.0, "end_distance_m": 540.0, "midpoint_distance_m": 537.5, "start_elevation_m": 288.8706186349629, "end_elevation_m": 289.9534070064931, "start_xy": [ 481830.825941505, 6252888.794201434 ], "end_xy": [ 481835.82069068664, 6252888.565114958 ] }, "max_10m": { "gradient_pct": 21.250704072116378, "start_distance_m": 533.0, "end_distance_m": 543.0, "midpoint_distance_m": 538.0, "start_elevation_m": 288.43170596591176, "end_elevation_m": 290.5567763731234, "start_xy": [ 481828.8280418324, 6252888.885836024 ], "end_xy": [ 481838.489304196, 6252887.19936148 ] }, "max_20m": { "gradient_pct": 20.571687561944998, "start_distance_m": 527.0, "end_distance_m": 547.0, "midpoint_distance_m": 537.0, "start_elevation_m": 287.2418497683282, "end_elevation_m": 291.3561872807172, "start_xy": [ 481823.0220741759, 6252887.463691718 ], "end_xy": [ 481842.04387647414, 6252885.364963508 ] }, "max_25m": { "gradient_pct": 20.251859664408585, "start_distance_m": 524.0, "end_distance_m": 549.0, "midpoint_distance_m": 536.5, "start_elevation_m": 286.6631523230968, "end_elevation_m": 291.72611723919897, "start_xy": [ 481820.44390601007, 6252886.181378171 ], "end_xy": [ 481843.5022778294, 6252883.999968602 ] }, "max_50m": { "gradient_pct": 20.0713324755518, "start_distance_m": 524.0, "end_distance_m": 574.0, "midpoint_distance_m": 549.0, "start_elevation_m": 286.6631523230968, "end_elevation_m": 296.6988185608727, "start_xy": [ 481820.44390601007, 6252886.181378171 ], "end_xy": [ 481857.9126522686, 6252863.784294409 ] }, "max_100m": { "gradient_pct": 19.183295459440387, "start_distance_m": 475.0, "end_distance_m": 575.0, "midpoint_distance_m": 525.0, "start_elevation_m": 277.70219454146843, "end_elevation_m": 296.8854900009088, "start_xy": [ 481815.06740571815, 6252840.441182686 ], "end_xy": [ 481858.72631174297, 6252863.202952634 ] } }, "window_minima": { "min_5m": { "gradient_pct": 0.3434345049231524, "start_distance_m": 25.0, "end_distance_m": 30.0, "midpoint_distance_m": 27.5, "start_elevation_m": 257.29912682106715, "end_elevation_m": 257.3162985463133, "start_xy": [ 481631.6057696766, 6252596.780785877 ], "end_xy": [ 481636.50612361194, 6252595.787543053 ] }, "min_10m": { "gradient_pct": 0.6749110818202553, "start_distance_m": 24.0, "end_distance_m": 34.0, "midpoint_distance_m": 29.0, "start_elevation_m": 257.2866503571067, "end_elevation_m": 257.3541414652887, "start_xy": [ 481630.62569888955, 6252596.979434443 ], "end_xy": [ 481640.4825537855, 6252595.4217587 ] }, "min_20m": { "gradient_pct": 0.8989797045597925, "start_distance_m": 24.0, "end_distance_m": 44.0, "midpoint_distance_m": 34.0, "start_elevation_m": 257.2866503571067, "end_elevation_m": 257.46644629801864, "start_xy": [ 481630.62569888955, 6252596.979434443 ], "end_xy": [ 481650.4643103396, 6252594.817990455 ] }, "min_25m": { "gradient_pct": 0.9599788251200607, "start_distance_m": 22.0, "end_distance_m": 47.0, "midpoint_distance_m": 34.5, "start_elevation_m": 257.26869372214617, "end_elevation_m": 257.5086884284262, "start_xy": [ 481628.6655573154, 6252597.376731573 ], "end_xy": [ 481653.45883730584, 6252594.636859981 ] }, "min_50m": { "gradient_pct": 1.3068777534098217, "start_distance_m": 962.0, "end_distance_m": 1012.0, "midpoint_distance_m": 987.0, "start_elevation_m": 338.4071371971444, "end_elevation_m": 339.0605760738493, "start_xy": [ 482224.31052831205, 6252880.770869194 ], "end_xy": [ 482255.1334171719, 6252918.88489986 ] }, "min_100m": { "gradient_pct": 2.0461417579077192, "start_distance_m": 924.0, "end_distance_m": 1024.0, "midpoint_distance_m": 974.0, "start_elevation_m": 337.4215207740657, "end_elevation_m": 339.4676625319734, "start_xy": [ 482190.9216462952, 6252862.837355115 ], "end_xy": [ 482260.3325952297, 6252929.700099698 ] } }, "diagnostic_window_maxima": { "max_2m": { "gradient_pct": 23.87827906318023, "start_distance_m": 559.0, "end_distance_m": 561.0, "midpoint_distance_m": 560.0, "start_elevation_m": 293.5673117416281, "end_elevation_m": 294.0448773228917, "start_xy": [ 481849.47047226847, 6252876.059517338 ], "end_xy": [ 481850.5390214869, 6252874.368895391 ] }, "max_3m": { "gradient_pct": 22.46299803265212, "start_distance_m": 537.0, "end_distance_m": 540.0, "midpoint_distance_m": 538.5, "start_elevation_m": 289.2795170655135, "end_elevation_m": 289.9534070064931, "start_xy": [ 481832.8238411777, 6252888.7025668435 ], "end_xy": [ 481835.82069068664, 6252888.565114958 ] } }, "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": 0.018, "windows_resited": [ 2.0, 3.0 ], "windows_unresolved": [], "minima_resited": [], "minima_unresolved": [] }, "overhead_obstruction": { "obstruction_threshold_m": 2.0, "obstructed_fraction": 0.287, "obstruction_max_height_m": 21.85, "flagged_windows_m": [ 2, 5, 10, 20, 25, 50, 100 ] }, "excluded_ranges_m": [ [ 0.0, 20.0 ] ], "review": [], "extent": [] }, "provenance": { "analysis_version": "0.1.0", "run_manifest": { "manifest_version": "1", "code_git_sha": "06fa4c370391597f015858e97dcf01ca2f5b3640", "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-pyr2", "road_pbf": "block-batch-fr-pyr2.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:c54ac68b3f57b41b" }, "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_E481-N6252_0m5@21LHD1GQ-2026-03-20.tif", "data/cache/fr/ign-lidarhd_dtm_E481-N6253_0m5@21LHD1GQ-2026-03-20.tif", "data/cache/fr/ign-lidarhd_dtm_E482-N6252_0m5@21LHD1GQ-2025-04-11.tif", "data/cache/fr/ign-lidarhd_dtm_E482-N6253_0m5@21LHD1GQ-2025-04-11.tif" ], "calculated_at": "2026-09-20T07:23:52+00:00", "road_source": "OpenStreetMap (local PBF extract)", "road_attribution": "\u00a9 OpenStreetMap contributors, ODbL", "osm_pbf_path": "data/cache/pbf/block-batch-fr-pyr2.osm.pbf", "osm_snapshot": "", "run_id": "fr-pyr2", "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": [ "E481-N6252", "E481-N6253", "E482-N6252", "E482-N6253" ], "elevation_blocks": [ "21LHD1GQ@2025-04-11", "21LHD1GQ@2026-03-20" ], "ign_dalles": [ "LHD_FXX_0481_6253_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0481_6254_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0482_6253_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0482_6254_MNT_O_0M50_LAMB93_IGN69" ], "ign_missions": [ "21LHD1GQ" ], "ign_editions": [ "2025-04-11", "2026-03-20" ], "ign_dsm_edition": { "LHD_FXX_0481_6253_MNT_O_0M50_LAMB93_IGN69": "2026-03-20", "LHD_FXX_0481_6254_MNT_O_0M50_LAMB93_IGN69": "2026-03-20", "LHD_FXX_0482_6253_MNT_O_0M50_LAMB93_IGN69": "2025-04-11", "LHD_FXX_0482_6254_MNT_O_0M50_LAMB93_IGN69": "2025-04-11" }, "route_summit_trim_m": 742.4, "route_summit_trim_loss_m": 9.4, "climb_origin": "discovered", "structure_own_ways": 1, "structure_mask_ranges_m": [ [ 0.0, 15.0 ] ], "carriageway": { "stations": 53, "stations_resolved": 53, "width_median_m": 5.25, "width_p10_m": 4.25, "width_min_m": 1.25, "width_max_m": 10.25, "bounded_share": 0.17, "unbounded_share": 0.83, "confidence_median": 0.0, "width_median_bounded_m": 4.75, "window_m": [ 524.0, 549.0 ], "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": 53, "stations_resolved": 53, "width_median_m": 6.0, "width_p10_m": 1.0, "width_min_m": 0.5, "width_max_m": 12.0, "bounded_share": 0.792, "unbounded_share": 0.208, "confidence_median": 1.0, "width_median_bounded_m": 4.12, "window_m": [ 524.0, 549.0 ], "width_at_max25_m": 1.0, "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": "Bernadets-Debat", "county": "Hautes-Pyr\u00e9n\u00e9es", "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)" } }