{ "ocl_version": "0.1.0", "name": "Discovered lane (43.8346, 1.7224)", "slug": "discovered-lane-43-8346-1-7224", "confidence": "B", "reported_claims": [], "ladder": [ { "window_m": 2.0, "max_gradient_pct": 37.25638090627115, "diagnostic": true, "flags": [ "structure_excluded", "structure_excluded_min" ], "start_distance_m": 88.0, "end_distance_m": 90.0, "start_elevation_m": 145.46467307045287, "end_elevation_m": 146.2098006885783, "min_gradient_pct": -15.703087198393462, "suppressed_max_gradient_pct": 76.49731150621903, "suppressed_location_m": [ 130.0, 132.0 ], "suppressed_min_gradient_pct": -69.61509884709756, "suppressed_min_location_m": [ 127.0, 129.0 ] }, { "window_m": 3.0, "max_gradient_pct": 34.128832898966266, "diagnostic": true, "flags": [ "structure_excluded", "structure_excluded_min" ], "start_distance_m": 88.0, "end_distance_m": 91.0, "start_elevation_m": 145.46467307045287, "end_elevation_m": 146.48853805742186, "min_gradient_pct": -11.506452896796304, "suppressed_max_gradient_pct": 70.87540124497689, "suppressed_location_m": [ 129.0, 132.0 ], "suppressed_min_gradient_pct": -45.92517722456174, "suppressed_min_location_m": [ 126.0, 129.0 ] }, { "window_m": 5.0, "max_gradient_pct": 30.013746683279123, "diagnostic": false, "flags": [ "structure_excluded", "structure_excluded_min" ], "start_distance_m": 87.0, "end_distance_m": 92.0, "start_elevation_m": 145.21229362254562, "end_elevation_m": 146.71298095670957, "min_gradient_pct": -4.703760707884612, "suppressed_max_gradient_pct": 65.42094034118861, "suppressed_location_m": [ 129.0, 134.0 ], "suppressed_min_gradient_pct": -16.201144435259494, "suppressed_min_location_m": [ 124.0, 129.0 ] }, { "window_m": 10.0, "max_gradient_pct": 25.654462367061512, "diagnostic": false, "flags": [ "structure_excluded" ], "start_distance_m": 87.0, "end_distance_m": 97.0, "start_elevation_m": 145.21229362254562, "end_elevation_m": 147.77773985925177, "min_gradient_pct": -1.762843627215318, "suppressed_max_gradient_pct": 35.98114084155014, "suppressed_location_m": [ 129.0, 139.0 ] }, { "window_m": 20.0, "max_gradient_pct": 20.55463759150655, "diagnostic": false, "flags": [ "structure_excluded" ], "start_distance_m": 86.0, "end_distance_m": 106.0, "start_elevation_m": 145.06045031452044, "end_elevation_m": 149.17137783282175, "min_gradient_pct": 0.8796171830971389, "suppressed_max_gradient_pct": 24.807639952015705, "suppressed_location_m": [ 114.0, 134.0 ] }, { "window_m": 25.0, "max_gradient_pct": 20.48751096833189, "diagnostic": false, "flags": [ "structure_excluded" ], "start_distance_m": 87.0, "end_distance_m": 112.0, "start_elevation_m": 145.21229362254562, "end_elevation_m": 150.3341713646286, "min_gradient_pct": 1.0328654381977458, "suppressed_max_gradient_pct": 23.798506549186868, "suppressed_location_m": [ 109.0, 134.0 ] }, { "window_m": 50.0, "max_gradient_pct": 17.57171934593822, "diagnostic": false, "flags": [ "structure_excluded" ], "start_distance_m": 69.0, "end_distance_m": 119.0, "start_elevation_m": 142.88699920470452, "end_elevation_m": 151.67285887767363, "min_gradient_pct": 1.567509052540629, "suppressed_max_gradient_pct": 21.67086903628035, "suppressed_location_m": [ 85.0, 135.0 ] }, { "window_m": 100.0, "max_gradient_pct": 14.212107557297914, "diagnostic": false, "flags": [ "structure_excluded" ], "start_distance_m": 18.0, "end_distance_m": 118.0, "start_elevation_m": 137.34506181464624, "end_elevation_m": 151.55716937194416, "min_gradient_pct": 2.252865438605653, "suppressed_max_gradient_pct": 16.702304150811386, "suppressed_location_m": [ 35.0, 135.0 ] } ], "shape": { "ascent_concentration": 0.408, "concentration_window_frac": 0.25, "longest_pitch_10pct_m": 89.0, "shape_class": "sustained" }, "length_m": 1452.041795603125, "start_elevation_m": 135.40965905005547, "end_elevation_m": 202.81387406619052, "endpoint_gain_m": 67.40421501613505, "overall_gradient_pct": 4.642029948465624, "accumulated_ascent_m": 74.0057768448257, "window_maxima": { "max_5m": { "gradient_pct": 30.013746683279123, "start_distance_m": 87.0, "end_distance_m": 92.0, "midpoint_distance_m": 89.5, "start_elevation_m": 145.21229362254562, "end_elevation_m": 146.71298095670957, "start_xy": [ 597147.883708653, 6304787.620722772 ], "end_xy": [ 597142.887599955, 6304787.8179482175 ] }, "max_10m": { "gradient_pct": 25.654462367061512, "start_distance_m": 87.0, "end_distance_m": 97.0, "midpoint_distance_m": 92.0, "start_elevation_m": 145.21229362254562, "end_elevation_m": 147.77773985925177, "start_xy": [ 597147.883708653, 6304787.620722772 ], "end_xy": [ 597137.8914912569, 6304788.015173664 ] }, "max_20m": { "gradient_pct": 20.55463759150655, "start_distance_m": 86.0, "end_distance_m": 106.0, "midpoint_distance_m": 96.0, "start_elevation_m": 145.06045031452044, "end_elevation_m": 149.17137783282175, "start_xy": [ 597148.8829303927, 6304787.5812776815 ], "end_xy": [ 597128.8984956003, 6304788.370179468 ] }, "max_25m": { "gradient_pct": 20.48751096833189, "start_distance_m": 87.0, "end_distance_m": 112.0, "midpoint_distance_m": 99.5, "start_elevation_m": 145.21229362254562, "end_elevation_m": 150.3341713646286, "start_xy": [ 597147.883708653, 6304787.620722772 ], "end_xy": [ 597122.9031651625, 6304788.606850004 ] }, "max_50m": { "gradient_pct": 17.57171934593822, "start_distance_m": 69.0, "end_distance_m": 119.0, "midpoint_distance_m": 94.0, "start_elevation_m": 142.88699920470452, "end_elevation_m": 151.67285887767363, "start_xy": [ 597165.8696999663, 6304786.910711164 ], "end_xy": [ 597115.9086129853, 6304788.882965629 ] }, "max_100m": { "gradient_pct": 14.212107557297914, "start_distance_m": 18.0, "end_distance_m": 118.0, "midpoint_distance_m": 68.0, "start_elevation_m": 137.34506181464624, "end_elevation_m": 151.55716937194416, "start_xy": [ 597216.8300086869, 6304784.899011608 ], "end_xy": [ 597116.9078347249, 6304788.84352054 ] } }, "window_minima": { "min_5m": { "gradient_pct": -4.703760707884612, "start_distance_m": 1073.0, "end_distance_m": 1078.0, "midpoint_distance_m": 1075.5, "start_elevation_m": 184.56959754121002, "end_elevation_m": 184.33440950581578, "start_xy": [ 596557.1567991938, 6305490.274723316 ], "end_xy": [ 596552.9087447873, 6305492.911773516 ] }, "min_10m": { "gradient_pct": -1.762843627215318, "start_distance_m": 1074.0, "end_distance_m": 1084.0, "midpoint_distance_m": 1079.0, "start_elevation_m": 184.6243271660175, "end_elevation_m": 184.44804280329598, "start_xy": [ 596556.3071883125, 6305490.802133355 ], "end_xy": [ 596547.8110794995, 6305496.076233756 ] }, "min_20m": { "gradient_pct": 0.8796171830971389, "start_distance_m": 1074.0, "end_distance_m": 1094.0, "midpoint_distance_m": 1084.0, "start_elevation_m": 184.6243271660175, "end_elevation_m": 184.80025060263694, "start_xy": [ 596556.3071883125, 6305490.802133355 ], "end_xy": [ 596539.3269384565, 6305501.3654975565 ] }, "min_25m": { "gradient_pct": 1.0328654381977458, "start_distance_m": 908.0, "end_distance_m": 933.0, "midpoint_distance_m": 920.5, "start_elevation_m": 179.63117047418945, "end_elevation_m": 179.88938683373888, "start_xy": [ 596698.1438247068, 6305404.603547188 ], "end_xy": [ 596676.7783586319, 6305417.584951557 ] }, "min_50m": { "gradient_pct": 1.567509052540629, "start_distance_m": 891.0, "end_distance_m": 941.0, "midpoint_distance_m": 916.0, "start_elevation_m": 179.20367713071076, "end_elevation_m": 179.98743165698107, "start_xy": [ 596709.0567309711, 6305391.722352292 ], "end_xy": [ 596669.9414094879, 6305421.739000956 ] }, "min_100m": { "gradient_pct": 2.252865438605653, "start_distance_m": 893.0, "end_distance_m": 993.0, "midpoint_distance_m": 943.0, "start_elevation_m": 179.25888177147982, "end_elevation_m": 181.51174721008547, "start_xy": [ 596708.1698595835, 6305393.514964671 ], "end_xy": [ 596625.5986104753, 6305448.896873013 ] } }, "diagnostic_window_maxima": { "max_2m": { "gradient_pct": 37.25638090627115, "start_distance_m": 88.0, "end_distance_m": 90.0, "midpoint_distance_m": 89.0, "start_elevation_m": 145.46467307045287, "end_elevation_m": 146.2098006885783, "start_xy": [ 597146.8844869134, 6304787.660167861 ], "end_xy": [ 597144.8860434343, 6304787.739058039 ] }, "max_3m": { "gradient_pct": 34.128832898966266, "start_distance_m": 88.0, "end_distance_m": 91.0, "midpoint_distance_m": 89.5, "start_elevation_m": 145.46467307045287, "end_elevation_m": 146.48853805742186, "start_xy": [ 597146.8844869134, 6304787.660167861 ], "end_xy": [ 597143.8868216946, 6304787.778503128 ] } }, "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, 50.0, 100.0 ], "windows_unresolved": [], "minima_resited": [ 2.0, 3.0, 5.0 ], "minima_unresolved": [] }, "overhead_obstruction": { "obstruction_threshold_m": 2.0, "obstructed_fraction": 0.724, "obstruction_max_height_m": 26.28, "flagged_windows_m": [] }, "excluded_ranges_m": [ [ 120.0, 136.0 ] ], "review": [], "extent": [ "may_start_earlier", "may_continue_beyond_end" ] }, "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-mc2", "road_pbf": "block-batch-fr-mc2.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_E596-N6304_0m5@22LHD2JP-2025-04-09.tif", "data/cache/fr/ign-lidarhd_dtm_E596-N6305_0m5@22LHD2JP-2025-04-09.tif", "data/cache/fr/ign-lidarhd_dtm_E597-N6304_0m5@22LHD2JP-2025-04-09.tif", "data/cache/fr/ign-lidarhd_dtm_E597-N6305_0m5@22LHD2JP-2025-04-09.tif" ], "calculated_at": "2026-09-22T14:40:24+00:00", "road_source": "OpenStreetMap (local PBF extract)", "road_attribution": "\u00a9 OpenStreetMap contributors, ODbL", "osm_pbf_path": "data/cache/pbf/block-batch-fr-mc2.osm.pbf", "osm_snapshot": "", "run_id": "fr-mc2", "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": [ "E596-N6304", "E596-N6305", "E597-N6304", "E597-N6305" ], "elevation_blocks": [ "22LHD2JP@2025-04-09" ], "ign_dalles": [ "LHD_FXX_0596_6305_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0596_6306_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0597_6305_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0597_6306_MNT_O_0M50_LAMB93_IGN69" ], "ign_missions": [ "22LHD2JP" ], "ign_editions": [ "2025-04-09" ], "ign_dsm_edition": { "LHD_FXX_0596_6305_MNT_O_0M50_LAMB93_IGN69": "2025-04-09", "LHD_FXX_0596_6306_MNT_O_0M50_LAMB93_IGN69": "2025-04-09", "LHD_FXX_0597_6305_MNT_O_0M50_LAMB93_IGN69": "2025-04-09", "LHD_FXX_0597_6306_MNT_O_0M50_LAMB93_IGN69": "2025-04-09" }, "climb_origin": "discovered", "structure_own_ways": 3, "carriageway": { "stations": 65, "stations_resolved": 65, "width_median_m": 6.0, "width_p10_m": 2.75, "width_min_m": 1.0, "width_max_m": 12.0, "bounded_share": 0.215, "unbounded_share": 0.785, "confidence_median": 0.0, "width_median_bounded_m": 6.25, "window_m": [ 87.0, 112.0 ], "width_at_max25_m": 3.75, "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": 65, "stations_resolved": 65, "width_median_m": 3.0, "width_p10_m": 1.0, "width_min_m": 0.0, "width_max_m": 12.0, "bounded_share": 0.923, "unbounded_share": 0.077, "confidence_median": 1.0, "width_median_bounded_m": 2.88, "window_m": [ 87.0, 112.0 ], "width_at_max25_m": 2.75, "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": "Rabastens", "county": "Tarn", "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)" } }