{ "ocl_version": "0.1.0", "name": "Discovered lane (43.4035, 5.5974)", "slug": "discovered-lane-43-4035-5-5974", "confidence": "A", "reported_claims": [], "ladder": [ { "window_m": 2.0, "max_gradient_pct": 33.57064349915788, "diagnostic": true, "flags": [], "start_distance_m": 390.0, "end_distance_m": 392.0, "start_elevation_m": 303.66570805806595, "end_elevation_m": 304.3371209280491, "min_gradient_pct": -3.3398531132320386 }, { "window_m": 3.0, "max_gradient_pct": 32.04566400191311, "diagnostic": true, "flags": [], "start_distance_m": 390.0, "end_distance_m": 393.0, "start_elevation_m": 303.66570805806595, "end_elevation_m": 304.62707797812334, "min_gradient_pct": -2.1093792945843384 }, { "window_m": 5.0, "max_gradient_pct": 30.151343968026367, "diagnostic": false, "flags": [], "start_distance_m": 388.0, "end_distance_m": 393.0, "start_elevation_m": 303.119510779722, "end_elevation_m": 304.62707797812334, "min_gradient_pct": -0.7586277980601608 }, { "window_m": 10.0, "max_gradient_pct": 28.859707461413677, "diagnostic": false, "flags": [], "start_distance_m": 383.0, "end_distance_m": 393.0, "start_elevation_m": 301.74110723198197, "end_elevation_m": 304.62707797812334, "min_gradient_pct": 0.2338689170011321 }, { "window_m": 20.0, "max_gradient_pct": 26.51316029843258, "diagnostic": false, "flags": [], "start_distance_m": 373.0, "end_distance_m": 393.0, "start_elevation_m": 299.3244459184368, "end_elevation_m": 304.62707797812334, "min_gradient_pct": 0.6396057581591208 }, { "window_m": 25.0, "max_gradient_pct": 26.406636263303426, "diagnostic": false, "flags": [], "start_distance_m": 371.0, "end_distance_m": 396.0, "start_elevation_m": 298.7914287181993, "end_elevation_m": 305.39308778402517, "min_gradient_pct": 0.5804361197651815 }, { "window_m": 50.0, "max_gradient_pct": 24.601630858086537, "diagnostic": false, "flags": [], "start_distance_m": 346.0, "end_distance_m": 396.0, "start_elevation_m": 293.0922723549819, "end_elevation_m": 305.39308778402517, "min_gradient_pct": 1.7440123127089464 }, { "window_m": 100.0, "max_gradient_pct": 20.03746530352862, "diagnostic": false, "flags": [], "start_distance_m": 296.0, "end_distance_m": 396.0, "start_elevation_m": 285.35562248049655, "end_elevation_m": 305.39308778402517, "min_gradient_pct": 5.592795071986529 } ], "shape": { "ascent_concentration": 0.417, "concentration_window_frac": 0.25, "longest_pitch_10pct_m": 125.0, "shape_class": "sustained" }, "length_m": 396.70868305706153, "start_elevation_m": 257.76291186964187, "end_elevation_m": 305.5387446997293, "endpoint_gain_m": 47.77583283008744, "overall_gradient_pct": 12.043051959922815, "accumulated_ascent_m": 47.87764885790807, "window_maxima": { "max_5m": { "gradient_pct": 30.151343968026367, "start_distance_m": 388.0, "end_distance_m": 393.0, "midpoint_distance_m": 390.5, "start_elevation_m": 303.119510779722, "end_elevation_m": 304.62707797812334, "start_xy": [ 910464.273676607, 6259670.712161444 ], "end_xy": [ 910463.7341710349, 6259675.682969602 ] }, "max_10m": { "gradient_pct": 28.859707461413677, "start_distance_m": 383.0, "end_distance_m": 393.0, "midpoint_distance_m": 388.0, "start_elevation_m": 301.74110723198197, "end_elevation_m": 304.62707797812334, "start_xy": [ 910464.813182179, 6259665.741353286 ], "end_xy": [ 910463.7341710349, 6259675.682969602 ] }, "max_20m": { "gradient_pct": 26.51316029843258, "start_distance_m": 373.0, "end_distance_m": 393.0, "midpoint_distance_m": 383.0, "start_elevation_m": 299.3244459184368, "end_elevation_m": 304.62707797812334, "start_xy": [ 910465.7828248647, 6259655.79258395 ], "end_xy": [ 910463.7341710349, 6259675.682969602 ] }, "max_25m": { "gradient_pct": 26.406636263303426, "start_distance_m": 371.0, "end_distance_m": 396.0, "midpoint_distance_m": 383.5, "start_elevation_m": 298.7914287181993, "end_elevation_m": 305.39308778402517, "start_xy": [ 910465.8278376765, 6259653.793090553 ], "end_xy": [ 910463.4104676916, 6259678.665454496 ] }, "max_50m": { "gradient_pct": 24.601630858086537, "start_distance_m": 346.0, "end_distance_m": 396.0, "midpoint_distance_m": 371.0, "start_elevation_m": 293.0922723549819, "end_elevation_m": 305.39308778402517, "start_xy": [ 910466.3904978248, 6259628.799423084 ], "end_xy": [ 910463.4104676916, 6259678.665454496 ] }, "max_100m": { "gradient_pct": 20.03746530352862, "start_distance_m": 296.0, "end_distance_m": 396.0, "midpoint_distance_m": 346.0, "start_elevation_m": 285.35562248049655, "end_elevation_m": 305.39308778402517, "start_xy": [ 910468.2878244132, 6259578.845177258 ], "end_xy": [ 910463.4104676916, 6259678.665454496 ] } }, "window_minima": { "min_5m": { "gradient_pct": -0.7586277980601608, "start_distance_m": 163.0, "end_distance_m": 168.0, "midpoint_distance_m": 165.5, "start_elevation_m": 272.0120744717611, "end_elevation_m": 271.9741430818581, "start_xy": [ 910446.7812859343, 6259455.236247417 ], "end_xy": [ 910451.7785860774, 6259455.400537645 ] }, "min_10m": { "gradient_pct": 0.2338689170011321, "start_distance_m": 158.0, "end_distance_m": 168.0, "midpoint_distance_m": 163.0, "start_elevation_m": 271.95075619015796, "end_elevation_m": 271.9741430818581, "start_xy": [ 910441.7839857911, 6259455.071957187 ], "end_xy": [ 910451.7785860774, 6259455.400537645 ] }, "min_20m": { "gradient_pct": 0.6396057581591208, "start_distance_m": 148.0, "end_distance_m": 168.0, "midpoint_distance_m": 158.0, "start_elevation_m": 271.84622193022625, "end_elevation_m": 271.9741430818581, "start_xy": [ 910431.7893855049, 6259454.743376728 ], "end_xy": [ 910451.7785860774, 6259455.400537645 ] }, "min_25m": { "gradient_pct": 0.5804361197651815, "start_distance_m": 143.0, "end_distance_m": 168.0, "midpoint_distance_m": 155.5, "start_elevation_m": 271.8290340519168, "end_elevation_m": 271.9741430818581, "start_xy": [ 910426.7913127822, 6259454.652290925 ], "end_xy": [ 910451.7785860774, 6259455.400537645 ] }, "min_50m": { "gradient_pct": 1.7440123127089464, "start_distance_m": 130.0, "end_distance_m": 180.0, "midpoint_distance_m": 155.0, "start_elevation_m": 271.62361139508255, "end_elevation_m": 272.495617551437, "start_xy": [ 910414.0912929092, 6259454.10334212 ], "end_xy": [ 910459.3551281876, 6259464.227138151 ] }, "min_100m": { "gradient_pct": 5.592795071986529, "start_distance_m": 109.0, "end_distance_m": 209.0, "midpoint_distance_m": 159.0, "start_elevation_m": 269.55290404216555, "end_elevation_m": 275.1456991141521, "start_xy": [ 910407.1991664917, 6259434.598830175 ], "end_xy": [ 910466.7689295291, 6259492.223020188 ] } }, "diagnostic_window_maxima": { "max_2m": { "gradient_pct": 33.57064349915788, "start_distance_m": 390.0, "end_distance_m": 392.0, "midpoint_distance_m": 391.0, "start_elevation_m": 303.66570805806595, "end_elevation_m": 304.3371209280491, "start_xy": [ 910464.0578743782, 6259672.700484707 ], "end_xy": [ 910463.8420721493, 6259674.68880797 ] }, "max_3m": { "gradient_pct": 32.04566400191311, "start_distance_m": 390.0, "end_distance_m": 393.0, "midpoint_distance_m": 391.5, "start_elevation_m": 303.66570805806595, "end_elevation_m": 304.62707797812334, "start_xy": [ 910464.0578743782, 6259672.700484707 ], "end_xy": [ 910463.7341710349, 6259675.682969602 ] } }, "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": 0.048, "obstruction_max_height_m": 9.34, "flagged_windows_m": [] }, "review": [], "extent": [ "may_start_earlier", "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-pr4", "road_pbf": "block-batch-fr-pr4.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_E910-N6259_0m5@21LHD7PQ-2025-03-14.tif" ], "calculated_at": "2026-09-25T09:28:54+00:00", "road_source": "OpenStreetMap (local PBF extract)", "road_attribution": "\u00a9 OpenStreetMap contributors, ODbL", "osm_pbf_path": "data/cache/pbf/block-batch-fr-pr4.osm.pbf", "osm_snapshot": "", "run_id": "fr-pr4", "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": [ "E910-N6259" ], "elevation_blocks": [ "21LHD7PQ@2025-03-14" ], "ign_dalles": [ "LHD_FXX_0910_6260_MNT_O_0M50_LAMB93_IGN69" ], "ign_missions": [ "21LHD7PQ" ], "ign_editions": [ "2025-03-14" ], "ign_dsm_edition": { "LHD_FXX_0910_6260_MNT_O_0M50_LAMB93_IGN69": "2025-03-14" }, "climb_origin": "discovered", "structure_own_ways": 2, "carriageway": { "stations": 22, "stations_resolved": 22, "width_median_m": 3.5, "width_p10_m": 2.25, "width_min_m": 1.75, "width_max_m": 10.75, "bounded_share": 0.273, "unbounded_share": 0.727, "confidence_median": 0.0, "width_median_bounded_m": 2.38, "window_m": [ 371.0, 396.0 ], "width_at_max25_m": 2.5, "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": 22, "stations_resolved": 22, "width_median_m": 2.25, "width_p10_m": 1.05, "width_min_m": 0.75, "width_max_m": 12.0, "bounded_share": 0.773, "unbounded_share": 0.227, "confidence_median": 1.0, "width_median_bounded_m": 2.25, "window_m": [ 371.0, 396.0 ], "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": "La Bouilladisse", "county": "Bouches-du-Rh\u00f4ne", "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)" } }