{ "ocl_version": "0.1.0", "name": "Avenue de Verlagny", "slug": "avenue-de-verlagny-2", "confidence": "B", "reported_claims": [], "ladder": [ { "window_m": 2.0, "max_gradient_pct": 29.871074446504053, "diagnostic": true, "flags": [ "canopy_or_structure" ], "start_distance_m": 1557.0, "end_distance_m": 1559.0, "start_elevation_m": 739.095351346551, "end_elevation_m": 739.692772835481, "min_gradient_pct": -1.5022161544607116 }, { "window_m": 3.0, "max_gradient_pct": 27.22102019703243, "diagnostic": true, "flags": [ "canopy_or_structure" ], "start_distance_m": 1557.0, "end_distance_m": 1560.0, "start_elevation_m": 739.095351346551, "end_elevation_m": 739.9119819524619, "min_gradient_pct": -1.3520337799567035 }, { "window_m": 5.0, "max_gradient_pct": 26.39006117819008, "diagnostic": false, "flags": [ "canopy_or_structure" ], "start_distance_m": 1540.0, "end_distance_m": 1545.0, "start_elevation_m": 734.8361633296493, "end_elevation_m": 736.1556663885588, "min_gradient_pct": 0.27112146233321255 }, { "window_m": 10.0, "max_gradient_pct": 25.870591031285812, "diagnostic": false, "flags": [ "canopy_or_structure" ], "start_distance_m": 1534.0, "end_distance_m": 1544.0, "start_elevation_m": 733.3376828410695, "end_elevation_m": 735.9247419441981, "min_gradient_pct": 0.9791190625401214 }, { "window_m": 20.0, "max_gradient_pct": 25.37909311406338, "diagnostic": false, "flags": [ "canopy_or_structure" ], "start_distance_m": 1540.0, "end_distance_m": 1560.0, "start_elevation_m": 734.8361633296493, "end_elevation_m": 739.9119819524619, "min_gradient_pct": 1.6237617809315452 }, { "window_m": 25.0, "max_gradient_pct": 25.420359977646058, "diagnostic": false, "flags": [ "canopy_or_structure" ], "start_distance_m": 1534.0, "end_distance_m": 1559.0, "start_elevation_m": 733.3376828410695, "end_elevation_m": 739.692772835481, "min_gradient_pct": 1.7770032530092976 }, { "window_m": 50.0, "max_gradient_pct": 24.39628795263502, "diagnostic": false, "flags": [ "canopy_or_structure" ], "start_distance_m": 1529.0, "end_distance_m": 1579.0, "start_elevation_m": 732.1907362216193, "end_elevation_m": 744.3888801979368, "min_gradient_pct": 2.4385766664090625 }, { "window_m": 100.0, "max_gradient_pct": 23.408467198837457, "diagnostic": false, "flags": [ "canopy_or_structure" ], "start_distance_m": 1530.0, "end_distance_m": 1630.0, "start_elevation_m": 732.4122944149252, "end_elevation_m": 755.8207616137627, "min_gradient_pct": 4.309270136377336 } ], "shape": { "ascent_concentration": 0.336, "concentration_window_frac": 0.25, "longest_pitch_10pct_m": 433.0, "shape_class": "sustained" }, "length_m": 2294.3835171300047, "start_elevation_m": 513.7043402453514, "end_elevation_m": 823.2810108867313, "endpoint_gain_m": 309.5766706413799, "overall_gradient_pct": 13.492803985474177, "accumulated_ascent_m": 309.815444220323, "window_maxima": { "max_5m": { "gradient_pct": 26.39006117819008, "start_distance_m": 1540.0, "end_distance_m": 1545.0, "midpoint_distance_m": 1542.5, "start_elevation_m": 734.8361633296493, "end_elevation_m": 736.1556663885588, "start_xy": [ 978439.246164499, 6593499.374796747 ], "end_xy": [ 978440.890162149, 6593494.654009268 ] }, "max_10m": { "gradient_pct": 25.870591031285812, "start_distance_m": 1534.0, "end_distance_m": 1544.0, "midpoint_distance_m": 1539.0, "start_elevation_m": 733.3376828410695, "end_elevation_m": 735.9247419441981, "start_xy": [ 978437.328858757, 6593505.0602113055 ], "end_xy": [ 978440.524368327, 6593495.584520375 ] }, "max_20m": { "gradient_pct": 25.37909311406338, "start_distance_m": 1540.0, "end_distance_m": 1560.0, "midpoint_distance_m": 1550.0, "start_elevation_m": 734.8361633296493, "end_elevation_m": 739.9119819524619, "start_xy": [ 978439.246164499, 6593499.374796747 ], "end_xy": [ 978448.4310344164, 6593481.798520015 ] }, "max_25m": { "gradient_pct": 25.420359977646058, "start_distance_m": 1534.0, "end_distance_m": 1559.0, "midpoint_distance_m": 1546.5, "start_elevation_m": 733.3376828410695, "end_elevation_m": 739.692772835481, "start_xy": [ 978437.328858757, 6593505.0602113055 ], "end_xy": [ 978447.7620007908, 6593482.54175215 ] }, "max_50m": { "gradient_pct": 24.39628795263502, "start_distance_m": 1529.0, "end_distance_m": 1579.0, "midpoint_distance_m": 1554.0, "start_elevation_m": 732.1907362216193, "end_elevation_m": 744.3888801979368, "start_xy": [ 978435.7311039721, 6593509.79805677 ], "end_xy": [ 978461.4840507766, 6593468.00524988 ] }, "max_100m": { "gradient_pct": 23.408467198837457, "start_distance_m": 1530.0, "end_distance_m": 1630.0, "midpoint_distance_m": 1580.0, "start_elevation_m": 732.4122944149252, "end_elevation_m": 755.8207616137627, "start_xy": [ 978436.050654929, 6593508.850487676 ], "end_xy": [ 978481.5089329057, 6593421.639409435 ] } }, "window_minima": { "min_5m": { "gradient_pct": 0.27112146233321255, "start_distance_m": 2289.0, "end_distance_m": 2294.0, "midpoint_distance_m": 2291.5, "start_elevation_m": 823.2588337783876, "end_elevation_m": 823.2723898515043, "start_xy": [ 978823.4418965646, 6592992.894227606 ], "end_xy": [ 978828.4331537005, 6592992.598673774 ] }, "min_10m": { "gradient_pct": 0.9791190625401214, "start_distance_m": 2183.0, "end_distance_m": 2193.0, "midpoint_distance_m": 2188.0, "start_elevation_m": 818.244814685874, "end_elevation_m": 818.342726592128, "start_xy": [ 978731.4400412254, 6593021.091137148 ], "end_xy": [ 978736.336008802, 6593012.377894128 ] }, "min_20m": { "gradient_pct": 1.6237617809315452, "start_distance_m": 2178.0, "end_distance_m": 2198.0, "midpoint_distance_m": 2188.0, "start_elevation_m": 818.1304079216593, "end_elevation_m": 818.4551602778456, "start_xy": [ 978729.1273915814, 6593025.524155491 ], "end_xy": [ 978739.4414194872, 6593008.464012556 ] }, "min_25m": { "gradient_pct": 1.7770032530092976, "start_distance_m": 2179.0, "end_distance_m": 2204.0, "midpoint_distance_m": 2191.5, "start_elevation_m": 818.1507892101769, "end_elevation_m": 818.5950400234292, "start_xy": [ 978729.5899215103, 6593024.637551823 ], "end_xy": [ 978743.7250717686, 6593004.272709917 ] }, "min_50m": { "gradient_pct": 2.4385766664090625, "start_distance_m": 2167.0, "end_distance_m": 2217.0, "midpoint_distance_m": 2192.0, "start_elevation_m": 817.7491507540395, "end_elevation_m": 818.9684390872441, "start_xy": [ 978723.4814104417, 6593034.945940761 ], "end_xy": [ 978752.2715840391, 6592997.563350146 ] }, "min_100m": { "gradient_pct": 4.309270136377336, "start_distance_m": 2165.0, "end_distance_m": 2265.0, "midpoint_distance_m": 2215.0, "start_elevation_m": 817.5960517209714, "end_elevation_m": 821.9053218573488, "start_xy": [ 978722.2480868038, 6593036.5144642405 ], "end_xy": [ 978799.4907481506, 6592994.401764411 ] } }, "diagnostic_window_maxima": { "max_2m": { "gradient_pct": 29.871074446504053, "start_distance_m": 1557.0, "end_distance_m": 1559.0, "midpoint_distance_m": 1558.0, "start_elevation_m": 739.095351346551, "end_elevation_m": 739.692772835481, "start_xy": [ 978446.5499510355, 6593484.128936126 ], "end_xy": [ 978447.7620007908, 6593482.54175215 ] }, "max_3m": { "gradient_pct": 27.22102019703243, "start_distance_m": 1557.0, "end_distance_m": 1560.0, "midpoint_distance_m": 1558.5, "start_elevation_m": 739.095351346551, "end_elevation_m": 739.9119819524619, "start_xy": [ 978446.5499510355, 6593484.128936126 ], "end_xy": [ 978448.4310344164, 6593481.798520015 ] } }, "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": 0.517, "obstruction_max_height_m": 25.89, "flagged_windows_m": [ 2, 3, 5, 10, 20, 25, 50, 100 ] }, "review": [], "extent": [ "may_start_earlier" ] }, "provenance": { "analysis_version": "0.1.0", "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_E977-N6593_0m5.tif", "data/cache/fr/ign-lidarhd_dtm_E977-N6594_0m5.tif", "data/cache/fr/ign-lidarhd_dtm_E978-N6592_0m5.tif", "data/cache/fr/ign-lidarhd_dtm_E978-N6593_0m5.tif", "data/cache/fr/ign-lidarhd_dtm_E978-N6594_0m5.tif" ], "calculated_at": "2026-09-17T02:23:28+00:00", "road_source": "OpenStreetMap (local PBF extract)", "road_attribution": "\u00a9 OpenStreetMap contributors, ODbL", "osm_pbf_path": "data/cache/pbf/block-batch-fr-alps4.osm.pbf", "osm_snapshot": "", "run_id": "fr-alps4", "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": [ "E977-N6593", "E977-N6594", "E978-N6592", "E978-N6593", "E978-N6594" ], "elevation_blocks": [ "21LHD5QK2@2025-06-13" ], "ign_dalles": [ "LHD_FXX_0977_6594_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0977_6595_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0978_6593_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0978_6594_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0978_6595_MNT_O_0M50_LAMB93_IGN69" ], "ign_missions": [ "21LHD5QK2" ], "ign_editions": [ "2025-06-13" ], "ign_dsm_edition": { "LHD_FXX_0977_6594_MNT_O_0M50_LAMB93_IGN69": "2025-06-13", "LHD_FXX_0977_6595_MNT_O_0M50_LAMB93_IGN69": "2025-06-13", "LHD_FXX_0978_6593_MNT_O_0M50_LAMB93_IGN69": "2025-06-13", "LHD_FXX_0978_6594_MNT_O_0M50_LAMB93_IGN69": "2025-06-13", "LHD_FXX_0978_6595_MNT_O_0M50_LAMB93_IGN69": "2025-06-13" }, "climb_origin": "discovered", "structure_own_ways": "none \u2014 the route carried no way list; own decks unmasked", "carriageway": { "stations": 98, "stations_resolved": 98, "width_median_m": 5.5, "width_p10_m": 4.0, "width_min_m": 3.5, "width_max_m": 10.0, "bounded_share": 0.265, "unbounded_share": 0.735, "confidence_median": 0.0, "width_median_bounded_m": 5.25, "window_m": [ 1534.0, 1559.0 ], "width_at_max25_m": 4.25, "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": 98, "stations_resolved": 98, "width_median_m": 2.75, "width_p10_m": 1.0, "width_min_m": 0.5, "width_max_m": 12.0, "bounded_share": 0.878, "unbounded_share": 0.122, "confidence_median": 1.0, "width_median_bounded_m": 2.5, "window_m": [ 1534.0, 1559.0 ], "width_at_max25_m": 1.75, "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": "Neuvecelle", "county": "Haute-Savoie", "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)" } }