{ "ocl_version": "0.1.0", "name": "Discovered lane (42.1161, 8.9366)", "slug": "discovered-lane-42-1161-8-9366", "confidence": "B", "reported_claims": [], "ladder": [ { "window_m": 2.0, "max_gradient_pct": 31.879783800653172, "diagnostic": true, "flags": [ "structure_excluded", "structure_excluded_min" ], "start_distance_m": 3145.0, "end_distance_m": 3147.0, "start_elevation_m": 476.5360348652485, "end_elevation_m": 477.17363054126156, "min_gradient_pct": -25.461063604765855, "suppressed_max_gradient_pct": 152.95144971905756, "suppressed_location_m": [ 836.0, 838.0 ], "suppressed_min_gradient_pct": -130.80933315437449, "suppressed_min_location_m": [ 833.0, 835.0 ] }, { "window_m": 3.0, "max_gradient_pct": 31.132511492158226, "diagnostic": true, "flags": [ "structure_excluded", "structure_excluded_min" ], "start_distance_m": 3144.0, "end_distance_m": 3147.0, "start_elevation_m": 476.2396551964968, "end_elevation_m": 477.17363054126156, "min_gradient_pct": -18.378207281464636, "suppressed_max_gradient_pct": 104.9714988605994, "suppressed_location_m": [ 836.0, 839.0 ], "suppressed_min_gradient_pct": -90.67889760299106, "suppressed_min_location_m": [ 833.0, 836.0 ] }, { "window_m": 5.0, "max_gradient_pct": 30.426307330100144, "diagnostic": false, "flags": [ "structure_excluded", "structure_excluded_min" ], "start_distance_m": 3141.0, "end_distance_m": 3146.0, "start_elevation_m": 475.3404246683919, "end_elevation_m": 476.8617400348969, "min_gradient_pct": -11.456002504291973, "suppressed_max_gradient_pct": 65.27034516502113, "suppressed_location_m": [ 836.0, 841.0 ], "suppressed_min_gradient_pct": -52.98270420377435, "suppressed_min_location_m": [ 831.0, 836.0 ] }, { "window_m": 10.0, "max_gradient_pct": 27.333980569577534, "diagnostic": false, "flags": [ "structure_excluded", "structure_excluded_min" ], "start_distance_m": 3138.0, "end_distance_m": 3148.0, "start_elevation_m": 474.6729377537006, "end_elevation_m": 477.40633581065833, "min_gradient_pct": -3.9004032150194234, "suppressed_max_gradient_pct": 36.528438028832966, "suppressed_location_m": [ 836.0, 846.0 ], "suppressed_min_gradient_pct": -24.458388160394975, "suppressed_min_location_m": [ 826.0, 836.0 ] }, { "window_m": 20.0, "max_gradient_pct": 23.370164787148155, "diagnostic": false, "flags": [ "structure_excluded_min" ], "start_distance_m": 3133.0, "end_distance_m": 3153.0, "start_elevation_m": 473.66009351397486, "end_elevation_m": 478.3341264714045, "min_gradient_pct": -0.2750755879412736, "suppressed_min_gradient_pct": -8.870047325270889, "suppressed_min_location_m": [ 816.0, 836.0 ] }, { "window_m": 25.0, "max_gradient_pct": 21.56144627314825, "diagnostic": false, "flags": [ "structure_excluded_min" ], "start_distance_m": 3129.0, "end_distance_m": 3154.0, "start_elevation_m": 473.06147462178564, "end_elevation_m": 478.4518361900727, "min_gradient_pct": 0.040398886018920166, "suppressed_min_gradient_pct": -5.691063299429061, "suppressed_min_location_m": [ 811.0, 836.0 ] }, { "window_m": 50.0, "max_gradient_pct": 20.34795287099064, "diagnostic": false, "flags": [ "canopy_or_structure" ], "start_distance_m": 3132.0, "end_distance_m": 3182.0, "start_elevation_m": 473.5250290106693, "end_elevation_m": 483.6990054461646, "min_gradient_pct": 1.414852030413499 }, { "window_m": 100.0, "max_gradient_pct": 16.54720099171101, "diagnostic": false, "flags": [ "canopy_or_structure" ], "start_distance_m": 3127.0, "end_distance_m": 3227.0, "start_elevation_m": 472.8410165109465, "end_elevation_m": 489.3882175026575, "min_gradient_pct": 2.32996243260186 } ], "shape": { "ascent_concentration": 0.29, "concentration_window_frac": 0.25, "longest_pitch_10pct_m": 68.0, "shape_class": "sustained" }, "length_m": 3308.872168018674, "start_elevation_m": 255.1344352137236, "end_elevation_m": 496.61824733202934, "endpoint_gain_m": 241.48381211830574, "overall_gradient_pct": 7.298070153701474, "accumulated_ascent_m": 246.46623377590745, "window_maxima": { "max_5m": { "gradient_pct": 30.426307330100144, "start_distance_m": 3141.0, "end_distance_m": 3146.0, "midpoint_distance_m": 3143.5, "start_elevation_m": 475.3404246683919, "end_elevation_m": 476.8617400348969, "start_xy": [ 1190502.8844605992, 6131456.405131924 ], "end_xy": [ 1190503.539323064, 6131461.362061936 ] }, "max_10m": { "gradient_pct": 27.333980569577534, "start_distance_m": 3138.0, "end_distance_m": 3148.0, "midpoint_distance_m": 3143.0, "start_elevation_m": 474.6729377537006, "end_elevation_m": 477.40633581065833, "start_xy": [ 1190502.4915431202, 6131453.430973916 ], "end_xy": [ 1190503.9399215952, 6131463.2601306895 ] }, "max_20m": { "gradient_pct": 23.370164787148155, "start_distance_m": 3133.0, "end_distance_m": 3153.0, "midpoint_distance_m": 3143.0, "start_elevation_m": 473.66009351397486, "end_elevation_m": 478.3341264714045, "start_xy": [ 1190501.8366806554, 6131448.474043904 ], "end_xy": [ 1190508.1950678974, 6131465.699535053 ] }, "max_25m": { "gradient_pct": 21.56144627314825, "start_distance_m": 3129.0, "end_distance_m": 3154.0, "midpoint_distance_m": 3141.5, "start_elevation_m": 473.06147462178564, "end_elevation_m": 478.4518361900727, "start_xy": [ 1190501.6677652656, 6131444.905716363 ], "end_xy": [ 1190509.1922576688, 6131465.774452072 ] }, "max_50m": { "gradient_pct": 20.34795287099064, "start_distance_m": 3132.0, "end_distance_m": 3182.0, "midpoint_distance_m": 3157.0, "start_elevation_m": 473.5250290106693, "end_elevation_m": 483.6990054461646, "start_xy": [ 1190501.7057081624, 6131447.482657901 ], "end_xy": [ 1190533.782576586, 6131476.6949601015 ] }, "max_100m": { "gradient_pct": 16.54720099171101, "start_distance_m": 3127.0, "end_distance_m": 3227.0, "midpoint_distance_m": 3177.0, "start_elevation_m": 472.8410165109465, "end_elevation_m": 489.3882175026575, "start_xy": [ 1190503.6087418096, 6131445.38801301 ], "end_xy": [ 1190573.0185954517, 6131497.0774681475 ] } }, "window_minima": { "min_5m": { "gradient_pct": -11.456002504291973, "start_distance_m": 3272.0, "end_distance_m": 3277.0, "midpoint_distance_m": 3274.5, "start_elevation_m": 496.19923130362133, "end_elevation_m": 495.62643117840673, "start_xy": [ 1190568.8205091076, 6131518.203156022 ], "end_xy": [ 1190563.866712139, 6131517.5249999985 ] }, "min_10m": { "gradient_pct": -3.9004032150194234, "start_distance_m": 3271.0, "end_distance_m": 3281.0, "midpoint_distance_m": 3276.0, "start_elevation_m": 496.1416971982045, "end_elevation_m": 495.75165687670255, "start_xy": [ 1190569.786613868, 6131518.054227985 ], "end_xy": [ 1190559.9036745639, 6131516.982475179 ] }, "min_20m": { "gradient_pct": -0.2750755879412736, "start_distance_m": 3056.0, "end_distance_m": 3076.0, "midpoint_distance_m": 3066.0, "start_elevation_m": 471.3379616321561, "end_elevation_m": 471.28294651456787, "start_xy": [ 1190574.2650416489, 6131450.264679888 ], "end_xy": [ 1190554.3081587986, 6131449.98909688 ] }, "min_25m": { "gradient_pct": 0.040398886018920166, "start_distance_m": 3053.0, "end_distance_m": 3078.0, "midpoint_distance_m": 3065.5, "start_elevation_m": 471.2738769473341, "end_elevation_m": 471.2839766688388, "start_xy": [ 1190577.258928941, 6131450.073267032 ], "end_xy": [ 1190552.3126323347, 6131449.85540271 ] }, "min_50m": { "gradient_pct": 1.414852030413499, "start_distance_m": 3052.0, "end_distance_m": 3102.0, "midpoint_distance_m": 3077.0, "start_elevation_m": 471.2325839216225, "end_elevation_m": 471.94000993682926, "start_xy": [ 1190578.256891372, 6131450.009462747 ], "end_xy": [ 1190528.3663147655, 6131448.2510726685 ] }, "min_100m": { "gradient_pct": 2.32996243260186, "start_distance_m": 1655.0, "end_distance_m": 1755.0, "midpoint_distance_m": 1705.0, "start_elevation_m": 376.3340045416744, "end_elevation_m": 378.66396697427626, "start_xy": [ 1191623.724548518, 6131835.86881357 ], "end_xy": [ 1191533.0533947677, 6131834.973785401 ] } }, "diagnostic_window_maxima": { "max_2m": { "gradient_pct": 31.879783800653172, "start_distance_m": 3145.0, "end_distance_m": 3147.0, "midpoint_distance_m": 3146.0, "start_elevation_m": 476.5360348652485, "end_elevation_m": 477.17363054126156, "start_xy": [ 1190503.408350571, 6131460.3706759345 ], "end_xy": [ 1190503.670295557, 6131462.353447939 ] }, "max_3m": { "gradient_pct": 31.132511492158226, "start_distance_m": 3144.0, "end_distance_m": 3147.0, "midpoint_distance_m": 3145.5, "start_elevation_m": 476.2396551964968, "end_elevation_m": 477.17363054126156, "start_xy": [ 1190503.277378078, 6131459.379289932 ], "end_xy": [ 1190503.670295557, 6131462.353447939 ] } }, "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": 0.015, "windows_resited": [ 2.0, 3.0, 5.0, 10.0 ], "windows_unresolved": [], "minima_resited": [ 2.0, 3.0, 5.0, 10.0, 20.0, 25.0 ], "minima_unresolved": [] }, "overhead_obstruction": { "obstruction_threshold_m": 2.0, "obstructed_fraction": 0.046, "obstruction_max_height_m": 20.31, "flagged_windows_m": [ 50, 100 ] }, "excluded_ranges_m": [ [ 0.0, 37.0 ], [ 831.0, 840.0 ] ], "review": [], "extent": [] }, "provenance": { "analysis_version": "0.1.0", "run_manifest": { "manifest_version": "1", "code_git_sha": "33abfff569d4360542e616d0d42c1b94d0a711fa", "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-co2", "road_pbf": "block-batch-fr-co2.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": "sha256:2a717d675f2607cc" }, "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_E1190-N6130_0m5@21LHDCorseUT-2025-04-02.tif", "data/cache/fr/ign-lidarhd_dtm_E1190-N6131_0m5@21LHDCorseUT-2025-04-02.tif", "data/cache/fr/ign-lidarhd_dtm_E1191-N6130_0m5@21LHDCorseUT-2025-04-02.tif", "data/cache/fr/ign-lidarhd_dtm_E1191-N6131_0m5@21LHDCorseUT-2025-04-02.tif" ], "calculated_at": "2026-09-25T00:41:00+00:00", "road_source": "OpenStreetMap (local PBF extract)", "road_attribution": "\u00a9 OpenStreetMap contributors, ODbL", "osm_pbf_path": "data/cache/pbf/block-batch-fr-co2.osm.pbf", "osm_snapshot": "", "run_id": "fr-co2", "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": [ "E1190-N6130", "E1190-N6131", "E1191-N6130", "E1191-N6131" ], "elevation_blocks": [ "21LHDCorseUT@2025-04-02" ], "ign_dalles": [ "LHD_FXX_1190_6131_MNT_O_0M50_LAMB93_IGN78", "LHD_FXX_1190_6132_MNT_O_0M50_LAMB93_IGN78", "LHD_FXX_1191_6131_MNT_O_0M50_LAMB93_IGN78", "LHD_FXX_1191_6132_MNT_O_0M50_LAMB93_IGN78" ], "ign_missions": [ "21LHDCorseUT" ], "ign_editions": [ "2025-04-02" ], "ign_dsm_edition": { "LHD_FXX_1190_6131_MNT_O_0M50_LAMB93_IGN78": "2025-04-02", "LHD_FXX_1190_6132_MNT_O_0M50_LAMB93_IGN78": "2025-04-02", "LHD_FXX_1191_6131_MNT_O_0M50_LAMB93_IGN78": "2025-04-02", "LHD_FXX_1191_6132_MNT_O_0M50_LAMB93_IGN78": "2025-04-02" }, "climb_origin": "discovered", "structure_own_ways": 4, "structure_mask_ranges_m": [ [ 0.0, 15.0 ] ], "mask_basin_extension_m": 17.0, "carriageway": { "stations": 139, "stations_resolved": 139, "width_median_m": 6.0, "width_p10_m": 4.0, "width_min_m": 1.25, "width_max_m": 12.0, "bounded_share": 0.46, "unbounded_share": 0.54, "confidence_median": 0.0, "width_median_bounded_m": 6.12, "window_m": [ 3129.0, 3154.0 ], "width_at_max25_m": 4.5, "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": 139, "stations_resolved": 139, "width_median_m": 7.25, "width_p10_m": 3.4, "width_min_m": 0.5, "width_max_m": 12.0, "bounded_share": 0.82, "unbounded_share": 0.18, "confidence_median": 1.0, "width_median_bounded_m": 6.62, "window_m": [ 3129.0, 3154.0 ], "width_at_max25_m": 5.0, "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": "Azzana", "county": "Corse-du-Sud", "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)" } }