{ "ocl_version": "0.1.0", "name": "Discovered lane (43.0035, 2.1984)", "slug": "discovered-lane-43-0035-2-1984", "confidence": "B", "reported_claims": [], "ladder": [ { "window_m": 2.0, "max_gradient_pct": 32.24525632531652, "diagnostic": true, "flags": [ "structure_excluded" ], "start_distance_m": 857.0, "end_distance_m": 859.0, "start_elevation_m": 324.54397391544825, "end_elevation_m": 325.1888790419546, "min_gradient_pct": -22.46003234573095, "suppressed_max_gradient_pct": 69.16172704160033, "suppressed_location_m": [ 1570.0, 1572.0 ] }, { "window_m": 3.0, "max_gradient_pct": 28.534013017046316, "diagnostic": true, "flags": [ "structure_excluded", "canopy_or_structure" ], "start_distance_m": 1524.0, "end_distance_m": 1527.0, "start_elevation_m": 384.40557953016275, "end_elevation_m": 385.26159992067414, "min_gradient_pct": -17.65212098318898, "suppressed_max_gradient_pct": 56.51253985652526, "suppressed_location_m": [ 1570.0, 1573.0 ] }, { "window_m": 5.0, "max_gradient_pct": 23.228191785639183, "diagnostic": false, "flags": [ "structure_excluded", "canopy_or_structure" ], "start_distance_m": 1523.0, "end_distance_m": 1528.0, "start_elevation_m": 384.31851401143183, "end_elevation_m": 385.4799236007138, "min_gradient_pct": -13.767749217598748, "suppressed_max_gradient_pct": 43.36605197960807, "suppressed_location_m": [ 1568.0, 1573.0 ] }, { "window_m": 10.0, "max_gradient_pct": 20.72719268086132, "diagnostic": false, "flags": [ "structure_excluded" ], "start_distance_m": 685.0, "end_distance_m": 695.0, "start_elevation_m": 296.522803907724, "end_elevation_m": 298.5955231758101, "min_gradient_pct": -7.7097322746112695, "suppressed_max_gradient_pct": 25.47919374806554, "suppressed_location_m": [ 1563.0, 1573.0 ] }, { "window_m": 20.0, "max_gradient_pct": 20.628622128236316, "diagnostic": false, "flags": [], "start_distance_m": 681.0, "end_distance_m": 701.0, "start_elevation_m": 295.697451404469, "end_elevation_m": 299.82317583011627, "min_gradient_pct": -2.765078015389406 }, { "window_m": 25.0, "max_gradient_pct": 20.40676141266863, "diagnostic": false, "flags": [], "start_distance_m": 679.0, "end_distance_m": 704.0, "start_elevation_m": 295.3017368661756, "end_elevation_m": 300.40342721934275, "min_gradient_pct": -2.6130104267997467 }, { "window_m": 50.0, "max_gradient_pct": 19.676564181199865, "diagnostic": false, "flags": [], "start_distance_m": 674.0, "end_distance_m": 724.0, "start_elevation_m": 294.36027457105877, "end_elevation_m": 304.1985566616587, "min_gradient_pct": -1.1757791708523655 }, { "window_m": 100.0, "max_gradient_pct": 18.490860876086913, "diagnostic": false, "flags": [], "start_distance_m": 672.0, "end_distance_m": 772.0, "start_elevation_m": 294.0194839612182, "end_elevation_m": 312.5103448373051, "min_gradient_pct": 0.5582066155102439 } ], "shape": { "ascent_concentration": 0.435, "concentration_window_frac": 0.25, "longest_pitch_10pct_m": 186.0, "shape_class": "sustained" }, "length_m": 1583.2174475331174, "start_elevation_m": 254.67223956327112, "end_elevation_m": 389.18332522215974, "endpoint_gain_m": 134.51108565888862, "overall_gradient_pct": 8.496058824293304, "accumulated_ascent_m": 139.349035841983, "window_maxima": { "max_5m": { "gradient_pct": 23.228191785639183, "start_distance_m": 1523.0, "end_distance_m": 1528.0, "midpoint_distance_m": 1525.5, "start_elevation_m": 384.31851401143183, "end_elevation_m": 385.4799236007138, "start_xy": [ 634526.7341934144, 6212253.903265538 ], "end_xy": [ 634523.5864352357, 6212257.788058768 ] }, "max_10m": { "gradient_pct": 20.72719268086132, "start_distance_m": 685.0, "end_distance_m": 695.0, "midpoint_distance_m": 690.0, "start_elevation_m": 296.522803907724, "end_elevation_m": 298.5955231758101, "start_xy": [ 634276.1515436952, 6211597.084871611 ], "end_xy": [ 634281.9894811257, 6211605.203891659 ] }, "max_20m": { "gradient_pct": 20.628622128236316, "start_distance_m": 681.0, "end_distance_m": 701.0, "midpoint_distance_m": 691.0, "start_elevation_m": 295.697451404469, "end_elevation_m": 299.82317583011627, "start_xy": [ 634273.816368723, 6211593.837263591 ], "end_xy": [ 634285.492243584, 6211610.075303689 ] }, "max_25m": { "gradient_pct": 20.40676141266863, "start_distance_m": 679.0, "end_distance_m": 704.0, "midpoint_distance_m": 691.5, "start_elevation_m": 295.3017368661756, "end_elevation_m": 300.40342721934275, "start_xy": [ 634272.648781237, 6211592.213459581 ], "end_xy": [ 634287.3197242746, 6211612.443325817 ] }, "max_50m": { "gradient_pct": 19.676564181199865, "start_distance_m": 674.0, "end_distance_m": 724.0, "midpoint_distance_m": 699.0, "start_elevation_m": 294.36027457105877, "end_elevation_m": 304.1985566616587, "start_xy": [ 634269.7298125217, 6211588.153949556 ], "end_xy": [ 634302.0847894565, 6211625.933798387 ] }, "max_100m": { "gradient_pct": 18.490860876086913, "start_distance_m": 672.0, "end_distance_m": 772.0, "midpoint_distance_m": 722.0, "start_elevation_m": 294.0194839612182, "end_elevation_m": 312.5103448373051, "start_xy": [ 634268.5622250356, 6211586.530145546 ], "end_xy": [ 634342.110166452, 6211651.616799907 ] } }, "window_minima": { "min_5m": { "gradient_pct": -13.767749217598748, "start_distance_m": 1538.0, "end_distance_m": 1543.0, "midpoint_distance_m": 1540.5, "start_elevation_m": 385.7376539576137, "end_elevation_m": 385.04926649673376, "start_xy": [ 634519.7375574838, 6212266.755042949 ], "end_xy": [ 634518.6010982137, 6212271.624176376 ] }, "min_10m": { "gradient_pct": -7.7097322746112695, "start_distance_m": 1533.0, "end_distance_m": 1543.0, "midpoint_distance_m": 1538.0, "start_elevation_m": 385.8202397241949, "end_elevation_m": 385.04926649673376, "start_xy": [ 634520.874016754, 6212261.885909522 ], "end_xy": [ 634518.6010982137, 6212271.624176376 ] }, "min_20m": { "gradient_pct": -2.765078015389406, "start_distance_m": 1457.0, "end_distance_m": 1477.0, "midpoint_distance_m": 1467.0, "start_elevation_m": 383.19137101457824, "end_elevation_m": 382.63835541150036, "start_xy": [ 634560.8746741062, 6212198.528973182 ], "end_xy": [ 634553.9986374264, 6212217.158622688 ] }, "min_25m": { "gradient_pct": -2.6130104267997467, "start_distance_m": 1452.0, "end_distance_m": 1477.0, "midpoint_distance_m": 1464.5, "start_elevation_m": 383.2916080182003, "end_elevation_m": 382.63835541150036, "start_xy": [ 634562.0227028042, 6212193.66255457 ], "end_xy": [ 634553.9986374264, 6212217.158622688 ] }, "min_50m": { "gradient_pct": -1.1757791708523655, "start_distance_m": 1432.0, "end_distance_m": 1482.0, "midpoint_distance_m": 1457.0, "start_elevation_m": 383.24635208680013, "end_elevation_m": 382.65846250137395, "start_xy": [ 634566.6148175959, 6212174.196880121 ], "end_xy": [ 634551.7336442457, 6212221.616178732 ] }, "min_100m": { "gradient_pct": 0.5582066155102439, "start_distance_m": 1397.0, "end_distance_m": 1497.0, "midpoint_distance_m": 1447.0, "start_elevation_m": 382.5425903386775, "end_elevation_m": 383.10079695418773, "start_xy": [ 634574.6510184816, 6212140.131949835 ], "end_xy": [ 634543.3917687938, 6212233.945243264 ] } }, "diagnostic_window_maxima": { "max_2m": { "gradient_pct": 32.24525632531652, "start_distance_m": 857.0, "end_distance_m": 859.0, "midpoint_distance_m": 858.0, "start_elevation_m": 324.54397391544825, "end_elevation_m": 325.1888790419546, "start_xy": [ 634408.5904451072, 6211704.051938879 ], "end_xy": [ 634409.9520461651, 6211705.516876611 ] }, "max_3m": { "gradient_pct": 28.534013017046316, "start_distance_m": 1524.0, "end_distance_m": 1527.0, "midpoint_distance_m": 1525.5, "start_elevation_m": 384.40557953016275, "end_elevation_m": 385.26159992067414, "start_xy": [ 634526.1046417786, 6212254.680224184 ], "end_xy": [ 634524.2159868714, 6212257.011100123 ] } }, "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": 0.017, "windows_resited": [ 2.0, 3.0, 5.0, 10.0 ], "windows_unresolved": [], "minima_resited": [], "minima_unresolved": [] }, "overhead_obstruction": { "obstruction_threshold_m": 2.0, "obstructed_fraction": 0.26, "obstruction_max_height_m": 23.9, "flagged_windows_m": [ 3, 5 ] }, "excluded_ranges_m": [ [ 0.0, 20.0 ], [ 1569.0, 1574.0 ] ], "review": [], "extent": [ "may_start_earlier", "may_continue_beyond_end" ] }, "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-pyr4", "road_pbf": "block-batch-fr-pyr4.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_E634-N6211_0m5@21LHD3JR1-2025-04-11.tif", "data/cache/fr/ign-lidarhd_dtm_E634-N6212_0m5@21LHD3JR1-2025-04-11.tif" ], "calculated_at": "2026-09-20T07:15:34+00:00", "road_source": "OpenStreetMap (local PBF extract)", "road_attribution": "\u00a9 OpenStreetMap contributors, ODbL", "osm_pbf_path": "data/cache/pbf/block-batch-fr-pyr4.osm.pbf", "osm_snapshot": "", "run_id": "fr-pyr4", "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": [ "E634-N6211", "E634-N6212" ], "elevation_blocks": [ "21LHD3JR1@2025-04-11" ], "ign_dalles": [ "LHD_FXX_0634_6212_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0634_6213_MNT_O_0M50_LAMB93_IGN69" ], "ign_missions": [ "21LHD3JR1" ], "ign_editions": [ "2025-04-11" ], "ign_dsm_edition": { "LHD_FXX_0634_6212_MNT_O_0M50_LAMB93_IGN69": "2025-04-11", "LHD_FXX_0634_6213_MNT_O_0M50_LAMB93_IGN69": "2025-04-11" }, "climb_origin": "discovered", "structure_own_ways": 2, "structure_mask_ranges_m": [ [ 0.0, 15.0 ] ], "carriageway": { "stations": 70, "stations_resolved": 70, "width_median_m": 5.62, "width_p10_m": 2.75, "width_min_m": 1.0, "width_max_m": 11.5, "bounded_share": 0.257, "unbounded_share": 0.743, "confidence_median": 0.0, "width_median_bounded_m": 4.62, "window_m": [ 679.0, 704.0 ], "width_at_max25_m": 7.75, "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": 70, "stations_resolved": 70, "width_median_m": 6.62, "width_p10_m": 1.25, "width_min_m": 0.75, "width_max_m": 12.0, "bounded_share": 0.686, "unbounded_share": 0.314, "confidence_median": 1.0, "width_median_bounded_m": 4.75, "window_m": [ 679.0, 704.0 ], "width_at_max25_m": 9.0, "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": "Roquetaillade-et-Conilhac", "county": "Aude", "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)" } }