{ "ocl_version": "0.1.0", "name": "Route de la Plagne", "slug": "route-de-la-plagne-2", "confidence": "B", "reported_claims": [], "ladder": [ { "window_m": 2.0, "max_gradient_pct": 25.8958980562511, "diagnostic": true, "flags": [], "start_distance_m": 5011.0, "end_distance_m": 5013.0, "start_elevation_m": 1243.1542695397984, "end_elevation_m": 1243.6721875009234, "min_gradient_pct": -6.813814610904956 }, { "window_m": 3.0, "max_gradient_pct": 25.449478320039514, "diagnostic": true, "flags": [ "canopy_or_structure" ], "start_distance_m": 5009.0, "end_distance_m": 5012.0, "start_elevation_m": 1242.6533799055658, "end_elevation_m": 1243.416864255167, "min_gradient_pct": -6.111633219362981 }, { "window_m": 5.0, "max_gradient_pct": 24.52469373557051, "diagnostic": false, "flags": [ "canopy_or_structure" ], "start_distance_m": 5008.0, "end_distance_m": 5013.0, "start_elevation_m": 1242.445952814145, "end_elevation_m": 1243.6721875009234, "min_gradient_pct": -4.125122683249174 }, { "window_m": 10.0, "max_gradient_pct": 16.97894058381962, "diagnostic": false, "flags": [ "canopy_or_structure" ], "start_distance_m": 5003.0, "end_distance_m": 5013.0, "start_elevation_m": 1241.9742934425415, "end_elevation_m": 1243.6721875009234, "min_gradient_pct": 0.3107984856796975 }, { "window_m": 20.0, "max_gradient_pct": 16.57976232809915, "diagnostic": false, "flags": [ "canopy_or_structure" ], "start_distance_m": 4993.0, "end_distance_m": 5013.0, "start_elevation_m": 1240.3562350353036, "end_elevation_m": 1243.6721875009234, "min_gradient_pct": 3.2548277988917107 }, { "window_m": 25.0, "max_gradient_pct": 15.608982000656397, "diagnostic": false, "flags": [ "canopy_or_structure" ], "start_distance_m": 4988.0, "end_distance_m": 5013.0, "start_elevation_m": 1239.7699420007593, "end_elevation_m": 1243.6721875009234, "min_gradient_pct": 3.515810536754543 }, { "window_m": 50.0, "max_gradient_pct": 14.118190630850222, "diagnostic": false, "flags": [], "start_distance_m": 4066.0, "end_distance_m": 4116.0, "start_elevation_m": 1150.695973004982, "end_elevation_m": 1157.7550683204072, "min_gradient_pct": 3.9060438182541475 }, { "window_m": 100.0, "max_gradient_pct": 13.395651730698546, "diagnostic": false, "flags": [], "start_distance_m": 4066.0, "end_distance_m": 4166.0, "start_elevation_m": 1150.695973004982, "end_elevation_m": 1164.0916247356806, "min_gradient_pct": 4.181590331076222 } ], "shape": { "ascent_concentration": 0.273, "concentration_window_frac": 0.25, "longest_pitch_10pct_m": 260.0, "shape_class": "sustained" }, "length_m": 10610.516826704717, "start_elevation_m": 826.1984049169779, "end_elevation_m": 1674.253590398424, "endpoint_gain_m": 848.0551854814461, "overall_gradient_pct": 7.992590741169622, "accumulated_ascent_m": 848.7637627816573, "window_maxima": { "max_5m": { "gradient_pct": 24.52469373557051, "start_distance_m": 5008.0, "end_distance_m": 5013.0, "midpoint_distance_m": 5010.5, "start_elevation_m": 1242.445952814145, "end_elevation_m": 1243.6721875009234, "start_xy": [ 986452.2078876006, 6500076.497757578 ], "end_xy": [ 986449.7958507171, 6500072.132085285 ] }, "max_10m": { "gradient_pct": 16.97894058381962, "start_distance_m": 5003.0, "end_distance_m": 5013.0, "midpoint_distance_m": 5008.0, "start_elevation_m": 1241.9742934425415, "end_elevation_m": 1243.6721875009234, "start_xy": [ 986454.9866776547, 6500080.6449872 ], "end_xy": [ 986449.7958507171, 6500072.132085285 ] }, "max_20m": { "gradient_pct": 16.57976232809915, "start_distance_m": 4993.0, "end_distance_m": 5013.0, "midpoint_distance_m": 5003.0, "start_elevation_m": 1240.3562350353036, "end_elevation_m": 1243.6721875009234, "start_xy": [ 986461.3292171492, 6500088.376235015 ], "end_xy": [ 986449.7958507171, 6500072.132085285 ] }, "max_25m": { "gradient_pct": 15.608982000656397, "start_distance_m": 4988.0, "end_distance_m": 5013.0, "midpoint_distance_m": 5000.5, "start_elevation_m": 1239.7699420007593, "end_elevation_m": 1243.6721875009234, "start_xy": [ 986464.4850559466, 6500092.25444045 ], "end_xy": [ 986449.7958507171, 6500072.132085285 ] }, "max_50m": { "gradient_pct": 14.118190630850222, "start_distance_m": 4066.0, "end_distance_m": 4116.0, "midpoint_distance_m": 4091.0, "start_elevation_m": 1150.695973004982, "end_elevation_m": 1157.7550683204072, "start_xy": [ 986405.4062320086, 6500381.221607885 ], "end_xy": [ 986450.6120773609, 6500401.285981267 ] }, "max_100m": { "gradient_pct": 13.395651730698546, "start_distance_m": 4066.0, "end_distance_m": 4166.0, "midpoint_distance_m": 4116.0, "start_elevation_m": 1150.695973004982, "end_elevation_m": 1164.0916247356806, "start_xy": [ 986405.4062320086, 6500381.221607885 ], "end_xy": [ 986497.6973458556, 6500417.977523368 ] } }, "window_minima": { "min_5m": { "gradient_pct": -4.125122683249174, "start_distance_m": 4611.0, "end_distance_m": 4616.0, "midpoint_distance_m": 4613.5, "start_elevation_m": 1204.816841330345, "end_elevation_m": 1204.6105851961825, "start_xy": [ 986430.5406830895, 6500205.4593309015 ], "end_xy": [ 986434.3594512636, 6500203.069645636 ] }, "min_10m": { "gradient_pct": 0.3107984856796975, "start_distance_m": 4610.0, "end_distance_m": 4620.0, "midpoint_distance_m": 4615.0, "start_elevation_m": 1204.7320716411916, "end_elevation_m": 1204.7631514897596, "start_xy": [ 986431.1881915356, 6500206.221389175 ], "end_xy": [ 986438.2898808972, 6500202.770378888 ] }, "min_20m": { "gradient_pct": 3.2548277988917107, "start_distance_m": 4434.0, "end_distance_m": 4454.0, "midpoint_distance_m": 4444.0, "start_elevation_m": 1192.2903853373487, "end_elevation_m": 1192.941350897127, "start_xy": [ 986512.4384305382, 6500318.766850874 ], "end_xy": [ 986522.3166027516, 6500313.008165008 ] }, "min_25m": { "gradient_pct": 3.515810536754543, "start_distance_m": 1483.0, "end_distance_m": 1508.0, "midpoint_distance_m": 1495.5, "start_elevation_m": 948.5589700562749, "end_elevation_m": 949.4379226904636, "start_xy": [ 986007.4299203478, 6500712.1026500035 ], "end_xy": [ 986028.0593923365, 6500707.539944196 ] }, "min_50m": { "gradient_pct": 3.9060438182541475, "start_distance_m": 4434.0, "end_distance_m": 4484.0, "midpoint_distance_m": 4459.0, "start_elevation_m": 1192.2903853373487, "end_elevation_m": 1194.2434072464757, "start_xy": [ 986512.4384305382, 6500318.766850874 ], "end_xy": [ 986521.1132449101, 6500293.211316747 ] }, "min_100m": { "gradient_pct": 4.181590331076222, "start_distance_m": 8565.0, "end_distance_m": 8665.0, "midpoint_distance_m": 8615.0, "start_elevation_m": 1523.5445348005442, "end_elevation_m": 1527.7261251316204, "start_xy": [ 986486.9445326132, 6498687.8967442475 ], "end_xy": [ 986581.9035462613, 6498657.620410002 ] } }, "diagnostic_window_maxima": { "max_2m": { "gradient_pct": 25.8958980562511, "start_distance_m": 5011.0, "end_distance_m": 5013.0, "midpoint_distance_m": 5012.0, "start_elevation_m": 1243.1542695397984, "end_elevation_m": 1243.6721875009234, "start_xy": [ 986450.6201505888, 6500073.952351681 ], "end_xy": [ 986449.7958507171, 6500072.132085285 ] }, "max_3m": { "gradient_pct": 25.449478320039514, "start_distance_m": 5009.0, "end_distance_m": 5012.0, "midpoint_distance_m": 5010.5, "start_elevation_m": 1242.6533799055658, "end_elevation_m": 1243.416864255167, "start_xy": [ 986451.67864193, 6500075.649288946 ], "end_xy": [ 986450.1960330099, 6500073.048520843 ] } }, "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": 0.033, "obstruction_max_height_m": 24.16, "flagged_windows_m": [ 3, 5, 10, 20, 25 ] }, "review": [], "extent": [ "may_start_earlier", "may_continue_beyond_end" ] }, "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_E985-N6498_0m5.tif", "data/cache/fr/ign-lidarhd_dtm_E985-N6499_0m5.tif", "data/cache/fr/ign-lidarhd_dtm_E985-N6500_0m5.tif", "data/cache/fr/ign-lidarhd_dtm_E986-N6497_0m5.tif", "data/cache/fr/ign-lidarhd_dtm_E986-N6498_0m5.tif", "data/cache/fr/ign-lidarhd_dtm_E986-N6499_0m5.tif", "data/cache/fr/ign-lidarhd_dtm_E986-N6500_0m5.tif", "data/cache/fr/ign-lidarhd_dtm_E986-N6501_0m5.tif", "data/cache/fr/ign-lidarhd_dtm_E987-N6497_0m5.tif", "data/cache/fr/ign-lidarhd_dtm_E987-N6498_0m5.tif", "data/cache/fr/ign-lidarhd_dtm_E987-N6499_0m5.tif", "data/cache/fr/ign-lidarhd_dtm_E987-N6500_0m5.tif" ], "calculated_at": "2026-09-17T02:24:32+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": [ "E985-N6498", "E985-N6499", "E985-N6500", "E986-N6497", "E986-N6498", "E986-N6499", "E986-N6500", "E986-N6501", "E987-N6497", "E987-N6498", "E987-N6499", "E987-N6500" ], "elevation_blocks": [ "21LHD5QL2@2025-03-26", "21LHD5RL@2025-06-04" ], "ign_dalles": [ "LHD_FXX_0985_6499_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0985_6500_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0985_6501_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0986_6498_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0986_6499_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0986_6500_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0986_6501_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0986_6502_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0987_6498_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0987_6499_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0987_6500_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0987_6501_MNT_O_0M50_LAMB93_IGN69" ], "ign_missions": [ "21LHD5QL2", "21LHD5RL" ], "ign_editions": [ "2025-03-26", "2025-06-04" ], "ign_dsm_edition": { "LHD_FXX_0985_6499_MNT_O_0M50_LAMB93_IGN69": "2025-03-26", "LHD_FXX_0985_6500_MNT_O_0M50_LAMB93_IGN69": "2025-03-26", "LHD_FXX_0985_6501_MNT_O_0M50_LAMB93_IGN69": "2025-03-26", "LHD_FXX_0986_6498_MNT_O_0M50_LAMB93_IGN69": "2025-06-04", "LHD_FXX_0986_6499_MNT_O_0M50_LAMB93_IGN69": "2025-06-04", "LHD_FXX_0986_6500_MNT_O_0M50_LAMB93_IGN69": "2025-06-04", "LHD_FXX_0986_6501_MNT_O_0M50_LAMB93_IGN69": "2025-06-04", "LHD_FXX_0986_6502_MNT_O_0M50_LAMB93_IGN69": "2025-06-04", "LHD_FXX_0987_6498_MNT_O_0M50_LAMB93_IGN69": "2025-06-04", "LHD_FXX_0987_6499_MNT_O_0M50_LAMB93_IGN69": "2025-06-04", "LHD_FXX_0987_6500_MNT_O_0M50_LAMB93_IGN69": "2025-06-04", "LHD_FXX_0987_6501_MNT_O_0M50_LAMB93_IGN69": "2025-06-04" }, "climb_origin": "discovered", "structure_own_ways": "none \u2014 the route carried no way list; own decks unmasked", "carriageway": { "stations": 431, "stations_resolved": 431, "width_median_m": 8.25, "width_p10_m": 6.5, "width_min_m": 2.5, "width_max_m": 12.0, "bounded_share": 0.469, "unbounded_share": 0.531, "confidence_median": 0.0, "width_median_bounded_m": 8.0, "window_m": [ 4988.0, 5013.0 ], "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": 431, "stations_resolved": 431, "width_median_m": 9.0, "width_p10_m": 3.5, "width_min_m": 0.0, "width_max_m": 12.0, "bounded_share": 0.631, "unbounded_share": 0.369, "confidence_median": 1.0, "width_median_bounded_m": 8.38, "window_m": [ 4988.0, 5013.0 ], "width_at_max25_m": 3.25, "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 Plagne-Tarentaise", "county": "Savoie", "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)" } }