{ "ocl_version": "0.1.0", "name": "Discovered lane (44.6493, 4.6612)", "slug": "discovered-lane-44-6493-4-6612", "confidence": "B", "reported_claims": [], "ladder": [ { "window_m": 2.0, "max_gradient_pct": 25.19465117440518, "diagnostic": true, "flags": [ "structure_excluded", "canopy_or_structure" ], "start_distance_m": 1914.0, "end_distance_m": 1916.0, "start_elevation_m": 440.0555690239041, "end_elevation_m": 440.55946204739223, "min_gradient_pct": -0.6970659497369525, "suppressed_max_gradient_pct": 41.88924474267992, "suppressed_location_m": [ 0.0, 2.0 ] }, { "window_m": 3.0, "max_gradient_pct": 20.699068675617127, "diagnostic": true, "flags": [ "structure_excluded", "structure_excluded_min", "canopy_or_structure" ], "start_distance_m": 1913.0, "end_distance_m": 1916.0, "start_elevation_m": 439.9384899871237, "end_elevation_m": 440.55946204739223, "min_gradient_pct": 1.293039820730731, "suppressed_max_gradient_pct": 28.06561095327235, "suppressed_location_m": [ 0.0, 3.0 ], "suppressed_min_gradient_pct": 1.0234923145541568, "suppressed_min_location_m": [ 2.0, 5.0 ] }, { "window_m": 5.0, "max_gradient_pct": 17.791421236693168, "diagnostic": false, "flags": [ "structure_excluded_min" ], "start_distance_m": 2184.0, "end_distance_m": 2189.0, "start_elevation_m": 474.0749709489787, "end_elevation_m": 474.9645420108134, "min_gradient_pct": 1.6676648587213094, "suppressed_min_gradient_pct": 1.3164103415829231, "suppressed_min_location_m": [ 2.0, 7.0 ] }, { "window_m": 10.0, "max_gradient_pct": 17.539664148082466, "diagnostic": false, "flags": [ "structure_excluded_min" ], "start_distance_m": 2181.0, "end_distance_m": 2191.0, "start_elevation_m": 473.54284137601144, "end_elevation_m": 475.2968077908197, "min_gradient_pct": 2.5624827312657317, "suppressed_min_gradient_pct": 1.7976575438336795, "suppressed_min_location_m": [ 2.0, 12.0 ] }, { "window_m": 20.0, "max_gradient_pct": 17.36030436753026, "diagnostic": false, "flags": [], "start_distance_m": 2176.0, "end_distance_m": 2196.0, "start_elevation_m": 472.6853857938505, "end_elevation_m": 476.15744666735657, "min_gradient_pct": 3.1535005214112743 }, { "window_m": 25.0, "max_gradient_pct": 17.26523812013329, "diagnostic": false, "flags": [], "start_distance_m": 2175.0, "end_distance_m": 2200.0, "start_elevation_m": 472.5099848188387, "end_elevation_m": 476.826294348872, "min_gradient_pct": 3.613545771174131 }, { "window_m": 50.0, "max_gradient_pct": 15.166633695539872, "diagnostic": false, "flags": [ "canopy_or_structure" ], "start_distance_m": 2158.0, "end_distance_m": 2208.0, "start_elevation_m": 470.4840525344157, "end_elevation_m": 478.06736938218563, "min_gradient_pct": 4.8820348177011965 }, { "window_m": 100.0, "max_gradient_pct": 13.68009828081955, "diagnostic": false, "flags": [], "start_distance_m": 1966.0, "end_distance_m": 2066.0, "start_elevation_m": 445.89499666988206, "end_elevation_m": 459.5750949507016, "min_gradient_pct": 6.478296045881621 } ], "shape": { "ascent_concentration": 0.264, "concentration_window_frac": 0.25, "longest_pitch_10pct_m": 149.0, "shape_class": "sustained" }, "length_m": 2208.342882088146, "start_elevation_m": 247.41484266617448, "end_elevation_m": 478.17756715782974, "endpoint_gain_m": 230.76272449165526, "overall_gradient_pct": 10.449587623523962, "accumulated_ascent_m": 230.81308004971578, "window_maxima": { "max_5m": { "gradient_pct": 17.791421236693168, "start_distance_m": 2184.0, "end_distance_m": 2189.0, "midpoint_distance_m": 2186.5, "start_elevation_m": 474.0749709489787, "end_elevation_m": 474.9645420108134, "start_xy": [ 832373.5794867389, 6396131.586855649 ], "end_xy": [ 832374.738247078, 6396136.45073008 ] }, "max_10m": { "gradient_pct": 17.539664148082466, "start_distance_m": 2181.0, "end_distance_m": 2191.0, "midpoint_distance_m": 2186.0, "start_elevation_m": 473.54284137601144, "end_elevation_m": 475.2968077908197, "start_xy": [ 832372.8842305354, 6396128.66853099 ], "end_xy": [ 832375.2017512138, 6396138.396279852 ] }, "max_20m": { "gradient_pct": 17.36030436753026, "start_distance_m": 2176.0, "end_distance_m": 2196.0, "midpoint_distance_m": 2186.0, "start_elevation_m": 472.6853857938505, "end_elevation_m": 476.15744666735657, "start_xy": [ 832371.7254701961, 6396123.8046565605 ], "end_xy": [ 832376.360511553, 6396143.260154283 ] }, "max_25m": { "gradient_pct": 17.26523812013329, "start_distance_m": 2175.0, "end_distance_m": 2200.0, "midpoint_distance_m": 2187.5, "start_elevation_m": 472.5099848188387, "end_elevation_m": 476.826294348872, "start_xy": [ 832371.4937181283, 6396122.831881674 ], "end_xy": [ 832377.2875198243, 6396147.151253827 ] }, "max_50m": { "gradient_pct": 15.166633695539872, "start_distance_m": 2158.0, "end_distance_m": 2208.0, "midpoint_distance_m": 2183.0, "start_elevation_m": 470.4840525344157, "end_elevation_m": 478.06736938218563, "start_xy": [ 832358.8854800804, 6396114.147996186 ], "end_xy": [ 832379.141536367, 6396154.933452915 ] }, "max_100m": { "gradient_pct": 13.68009828081955, "start_distance_m": 1966.0, "end_distance_m": 2066.0, "midpoint_distance_m": 2016.0, "start_elevation_m": 445.89499666988206, "end_elevation_m": 459.5750949507016, "start_xy": [ 832329.4358086579, 6396019.576312802 ], "end_xy": [ 832292.3859024415, 6396061.448664205 ] } }, "window_minima": { "min_5m": { "gradient_pct": 1.6676648587213094, "start_distance_m": 1748.0, "end_distance_m": 1753.0, "midpoint_distance_m": 1750.5, "start_elevation_m": 425.03711102751095, "end_elevation_m": 425.120494270447, "start_xy": [ 832202.9822954964, 6395882.564421683 ], "end_xy": [ 832207.9563063551, 6395882.170307298 ] }, "min_10m": { "gradient_pct": 2.5624827312657317, "start_distance_m": 1802.0, "end_distance_m": 1812.0, "midpoint_distance_m": 1807.0, "start_elevation_m": 428.6411620905102, "end_elevation_m": 428.89741036363677, "start_xy": [ 832253.6240293431, 6395895.043403861 ], "end_xy": [ 832262.4542720751, 6395899.736677058 ] }, "min_20m": { "gradient_pct": 3.1535005214112743, "start_distance_m": 1795.0, "end_distance_m": 1815.0, "midpoint_distance_m": 1805.0, "start_elevation_m": 428.39259524284194, "end_elevation_m": 429.0232953471242, "start_xy": [ 832247.4428594308, 6395891.758112624 ], "end_xy": [ 832265.1033448947, 6395901.144659016 ] }, "min_25m": { "gradient_pct": 3.613545771174131, "start_distance_m": 1787.0, "end_distance_m": 1812.0, "midpoint_distance_m": 1799.5, "start_elevation_m": 427.99402392084323, "end_elevation_m": 428.89741036363677, "start_xy": [ 832240.3786652453, 6395888.003494067 ], "end_xy": [ 832262.4542720751, 6395899.736677058 ] }, "min_50m": { "gradient_pct": 4.8820348177011965, "start_distance_m": 1773.0, "end_distance_m": 1823.0, "midpoint_distance_m": 1798.0, "start_elevation_m": 427.14564841591573, "end_elevation_m": 429.5866658247663, "start_xy": [ 832227.8415039409, 6395881.98095631 ], "end_xy": [ 832272.1675390803, 6395904.899277573 ] }, "min_100m": { "gradient_pct": 6.478296045881621, "start_distance_m": 1747.0, "end_distance_m": 1847.0, "midpoint_distance_m": 1797.0, "start_elevation_m": 424.9827552883329, "end_elevation_m": 431.4610513342145, "start_xy": [ 832202.0123403227, 6395882.321137978 ], "end_xy": [ 832293.3601216369, 6395916.163133245 ] } }, "diagnostic_window_maxima": { "max_2m": { "gradient_pct": 25.19465117440518, "start_distance_m": 1914.0, "end_distance_m": 1916.0, "midpoint_distance_m": 1915.0, "start_elevation_m": 440.0555690239041, "end_elevation_m": 440.55946204739223, "start_xy": [ 832327.3052153542, 6395970.104798278 ], "end_xy": [ 832328.2779832174, 6395971.852288674 ] }, "max_3m": { "gradient_pct": 20.699068675617127, "start_distance_m": 1913.0, "end_distance_m": 1916.0, "midpoint_distance_m": 1914.5, "start_elevation_m": 439.9384899871237, "end_elevation_m": 440.55946204739223, "start_xy": [ 832326.8188314226, 6395969.2310530795 ], "end_xy": [ 832328.2779832174, 6395971.852288674 ] } }, "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": 0.01, "windows_resited": [ 2.0, 3.0 ], "windows_unresolved": [], "minima_resited": [ 3.0, 5.0, 10.0 ], "minima_unresolved": [] }, "overhead_obstruction": { "obstruction_threshold_m": 2.0, "obstructed_fraction": 0.285, "obstruction_max_height_m": 16.27, "flagged_windows_m": [ 2, 3, 50 ] }, "excluded_ranges_m": [ [ 0.0, 20.0 ] ], "review": [], "extent": [ "may_start_earlier", "may_continue_beyond_end" ] }, "provenance": { "analysis_version": "0.1.0", "run_manifest": { "manifest_version": "1", "code_git_sha": "076a8e7f889cfb3c2cf6b3de65a6030c7155b1f0", "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-mc8", "road_pbf": "block-batch-fr-mc8.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_E831-N6395_0m5@22LHD5NN-2025-06-04.tif", "data/cache/fr/ign-lidarhd_dtm_E831-N6396_0m5@22LHD5NN-2025-06-04.tif", "data/cache/fr/ign-lidarhd_dtm_E832-N6395_0m5@22LHD5NN-2025-06-04.tif", "data/cache/fr/ign-lidarhd_dtm_E832-N6396_0m5@22LHD5NN-2025-06-04.tif" ], "calculated_at": "2026-09-22T15:08:10+00:00", "road_source": "OpenStreetMap (local PBF extract)", "road_attribution": "\u00a9 OpenStreetMap contributors, ODbL", "osm_pbf_path": "data/cache/pbf/block-batch-fr-mc8.osm.pbf", "osm_snapshot": "", "run_id": "fr-mc8", "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": [ "E831-N6395", "E831-N6396", "E832-N6395", "E832-N6396" ], "elevation_blocks": [ "22LHD5NN@2025-06-04" ], "ign_dalles": [ "LHD_FXX_0831_6396_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0831_6397_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0832_6396_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0832_6397_MNT_O_0M50_LAMB93_IGN69" ], "ign_missions": [ "22LHD5NN" ], "ign_editions": [ "2025-06-04" ], "ign_dsm_edition": { "LHD_FXX_0831_6396_MNT_O_0M50_LAMB93_IGN69": "2025-06-04", "LHD_FXX_0831_6397_MNT_O_0M50_LAMB93_IGN69": "2025-06-04", "LHD_FXX_0832_6396_MNT_O_0M50_LAMB93_IGN69": "2025-06-04", "LHD_FXX_0832_6397_MNT_O_0M50_LAMB93_IGN69": "2025-06-04" }, "climb_origin": "discovered", "structure_own_ways": 1, "structure_mask_ranges_m": [ [ 0.0, 15.0 ] ], "carriageway": { "stations": 93, "stations_resolved": 93, "width_median_m": 4.75, "width_p10_m": 3.75, "width_min_m": 2.25, "width_max_m": 8.75, "bounded_share": 0.28, "unbounded_share": 0.72, "confidence_median": 0.0, "width_median_bounded_m": 5.0, "window_m": [ 2175.0, 2200.0 ], "width_at_max25_m": 6.5, "window_stations": 6, "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": 93, "stations_resolved": 93, "width_median_m": 4.0, "width_p10_m": 1.0, "width_min_m": 0.5, "width_max_m": 12.0, "bounded_share": 0.828, "unbounded_share": 0.172, "confidence_median": 1.0, "width_median_bounded_m": 3.5, "window_m": [ 2175.0, 2200.0 ], "width_at_max25_m": 11.12, "window_stations": 6, "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": "Saint-Martin-sur-Lavezon", "county": "Ard\u00e8che", "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)" } }