{ "ocl_version": "0.1.0", "name": "Route des Gaillards", "slug": "route-des-gaillards", "confidence": "A", "reported_claims": [], "ladder": [ { "window_m": 2.0, "max_gradient_pct": 33.48825195275822, "diagnostic": true, "flags": [], "start_distance_m": 1578.0, "end_distance_m": 1580.0, "start_elevation_m": 1366.613901632561, "end_elevation_m": 1367.2836666716162, "min_gradient_pct": -2.4098005509586073 }, { "window_m": 3.0, "max_gradient_pct": 32.6871629294601, "diagnostic": true, "flags": [], "start_distance_m": 1582.0, "end_distance_m": 1585.0, "start_elevation_m": 1367.8907215710065, "end_elevation_m": 1368.8713364588903, "min_gradient_pct": -0.8833669959434095 }, { "window_m": 5.0, "max_gradient_pct": 32.63495968089501, "diagnostic": false, "flags": [], "start_distance_m": 1578.0, "end_distance_m": 1583.0, "start_elevation_m": 1366.613901632561, "end_elevation_m": 1368.2456496166058, "min_gradient_pct": -0.15825531755581324 }, { "window_m": 10.0, "max_gradient_pct": 31.256446490865528, "diagnostic": false, "flags": [], "start_distance_m": 1576.0, "end_distance_m": 1586.0, "start_elevation_m": 1366.0541349376863, "end_elevation_m": 1369.1797795867728, "min_gradient_pct": 0.9557640381808596 }, { "window_m": 20.0, "max_gradient_pct": 30.04517555102666, "diagnostic": false, "flags": [], "start_distance_m": 1566.0, "end_distance_m": 1586.0, "start_elevation_m": 1363.1707444765675, "end_elevation_m": 1369.1797795867728, "min_gradient_pct": 1.3983027424990269 }, { "window_m": 25.0, "max_gradient_pct": 28.95996362585356, "diagnostic": false, "flags": [], "start_distance_m": 1566.0, "end_distance_m": 1591.0, "start_elevation_m": 1363.1707444765675, "end_elevation_m": 1370.410735383031, "min_gradient_pct": 1.7080960281846274 }, { "window_m": 50.0, "max_gradient_pct": 27.221859713995855, "diagnostic": false, "flags": [], "start_distance_m": 1566.0, "end_distance_m": 1616.0, "start_elevation_m": 1363.1707444765675, "end_elevation_m": 1376.7816743335654, "min_gradient_pct": 3.3655907878182916 }, { "window_m": 100.0, "max_gradient_pct": 24.782731224707277, "diagnostic": false, "flags": [], "start_distance_m": 1566.0, "end_distance_m": 1666.0, "start_elevation_m": 1363.1707444765675, "end_elevation_m": 1387.9534757012748, "min_gradient_pct": 3.718327326922463 } ], "shape": { "ascent_concentration": 0.307, "concentration_window_frac": 0.25, "longest_pitch_10pct_m": 154.0, "shape_class": "sustained" }, "length_m": 1699.4384679926982, "start_elevation_m": 1223.7385131835701, "end_elevation_m": 1394.7331158447423, "endpoint_gain_m": 170.99460266117217, "overall_gradient_pct": 10.06182959146167, "accumulated_ascent_m": 171.12820479222296, "window_maxima": { "max_5m": { "gradient_pct": 32.63495968089501, "start_distance_m": 1578.0, "end_distance_m": 1583.0, "midpoint_distance_m": 1580.5, "start_elevation_m": 1366.613901632561, "end_elevation_m": 1368.2456496166058, "start_xy": [ 980416.6701546973, 6388812.704146647 ], "end_xy": [ 980421.1994791216, 6388814.821980507 ] }, "max_10m": { "gradient_pct": 31.256446490865528, "start_distance_m": 1576.0, "end_distance_m": 1586.0, "midpoint_distance_m": 1581.0, "start_elevation_m": 1366.0541349376863, "end_elevation_m": 1369.1797795867728, "start_xy": [ 980414.7507023643, 6388812.176190424 ], "end_xy": [ 980423.9170737762, 6388816.092680823 ] }, "max_20m": { "gradient_pct": 30.04517555102666, "start_distance_m": 1566.0, "end_distance_m": 1586.0, "midpoint_distance_m": 1576.0, "start_elevation_m": 1363.1707444765675, "end_elevation_m": 1369.1797795867728, "start_xy": [ 980404.9779903862, 6388810.05626104 ], "end_xy": [ 980423.9170737762, 6388816.092680823 ] }, "max_25m": { "gradient_pct": 28.95996362585356, "start_distance_m": 1566.0, "end_distance_m": 1591.0, "midpoint_distance_m": 1578.5, "start_elevation_m": 1363.1707444765675, "end_elevation_m": 1370.410735383031, "start_xy": [ 980404.9779903862, 6388810.05626104 ], "end_xy": [ 980428.4463982007, 6388818.210514683 ] }, "max_50m": { "gradient_pct": 27.221859713995855, "start_distance_m": 1566.0, "end_distance_m": 1616.0, "midpoint_distance_m": 1591.0, "start_elevation_m": 1363.1707444765675, "end_elevation_m": 1376.7816743335654, "start_xy": [ 980404.9779903862, 6388810.05626104 ], "end_xy": [ 980450.2020183934, 6388830.47851643 ] }, "max_100m": { "gradient_pct": 24.782731224707277, "start_distance_m": 1566.0, "end_distance_m": 1666.0, "midpoint_distance_m": 1616.0, "start_elevation_m": 1363.1707444765675, "end_elevation_m": 1387.9534757012748, "start_xy": [ 980404.9779903862, 6388810.05626104 ], "end_xy": [ 980496.5215948333, 6388835.629692028 ] } }, "window_minima": { "min_5m": { "gradient_pct": -0.15825531755581324, "start_distance_m": 1478.0, "end_distance_m": 1483.0, "midpoint_distance_m": 1480.5, "start_elevation_m": 1359.0148037481893, "end_elevation_m": 1359.0068909823115, "start_xy": [ 980396.9180867273, 6388887.872954368 ], "end_xy": [ 980397.8454026069, 6388882.959698293 ] }, "min_10m": { "gradient_pct": 0.9557640381808596, "start_distance_m": 1542.0, "end_distance_m": 1552.0, "midpoint_distance_m": 1547.0, "start_elevation_m": 1361.3479273969942, "end_elevation_m": 1361.4435038008123, "start_xy": [ 980394.9452219763, 6388825.363672672 ], "end_xy": [ 980394.6255401786, 6388815.378808351 ] }, "min_20m": { "gradient_pct": 1.3983027424990269, "start_distance_m": 1534.0, "end_distance_m": 1554.0, "midpoint_distance_m": 1544.0, "start_elevation_m": 1361.2034279643726, "end_elevation_m": 1361.4830885128724, "start_xy": [ 980395.6012148239, 6388833.332319384 ], "end_xy": [ 980394.820638691, 6388813.389050437 ] }, "min_25m": { "gradient_pct": 1.7080960281846274, "start_distance_m": 1529.0, "end_distance_m": 1554.0, "midpoint_distance_m": 1541.5, "start_elevation_m": 1361.0560645058263, "end_elevation_m": 1361.4830885128724, "start_xy": [ 980396.1699389111, 6388838.299869375 ], "end_xy": [ 980394.820638691, 6388813.389050437 ] }, "min_50m": { "gradient_pct": 3.3655907878182916, "start_distance_m": 1468.0, "end_distance_m": 1518.0, "midpoint_distance_m": 1493.0, "start_elevation_m": 1358.6774692952945, "end_elevation_m": 1360.3602646892036, "start_xy": [ 980395.5583423587, 6388897.761426203 ], "end_xy": [ 980398.1535050184, 6388849.090532767 ] }, "min_100m": { "gradient_pct": 3.718327326922463, "start_distance_m": 1459.0, "end_distance_m": 1559.0, "midpoint_distance_m": 1509.0, "start_elevation_m": 1358.0675189316526, "end_elevation_m": 1361.785846258575, "start_xy": [ 980396.1332719603, 6388906.708318618 ], "end_xy": [ 980398.0409138205, 6388809.7047936125 ] } }, "diagnostic_window_maxima": { "max_2m": { "gradient_pct": 33.48825195275822, "start_distance_m": 1578.0, "end_distance_m": 1580.0, "midpoint_distance_m": 1579.0, "start_elevation_m": 1366.613901632561, "end_elevation_m": 1367.2836666716162, "start_xy": [ 980416.6701546973, 6388812.704146647 ], "end_xy": [ 980418.481884467, 6388813.551280191 ] }, "max_3m": { "gradient_pct": 32.6871629294601, "start_distance_m": 1582.0, "end_distance_m": 1585.0, "midpoint_distance_m": 1583.5, "start_elevation_m": 1367.8907215710065, "end_elevation_m": 1368.8713364588903, "start_xy": [ 980420.2936142368, 6388814.3984137345 ], "end_xy": [ 980423.0112088914, 6388815.669114051 ] } }, "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": 0.042, "obstruction_max_height_m": 13.43, "flagged_windows_m": [] }, "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_E979-N6388_0m5.tif", "data/cache/fr/ign-lidarhd_dtm_E979-N6389_0m5.tif", "data/cache/fr/ign-lidarhd_dtm_E980-N6388_0m5.tif", "data/cache/fr/ign-lidarhd_dtm_E980-N6389_0m5.tif" ], "calculated_at": "2026-09-17T02:21:03+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": [ "E979-N6388", "E979-N6389", "E980-N6388", "E980-N6389" ], "elevation_blocks": [ "21LHD8QN@2025-02-20" ], "ign_dalles": [ "LHD_FXX_0979_6389_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0979_6390_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0980_6389_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0980_6390_MNT_O_0M50_LAMB93_IGN69" ], "ign_missions": [ "21LHD8QN" ], "ign_editions": [ "2025-02-20" ], "ign_dsm_edition": { "LHD_FXX_0979_6389_MNT_O_0M50_LAMB93_IGN69": "2025-02-20", "LHD_FXX_0979_6390_MNT_O_0M50_LAMB93_IGN69": "2025-02-20", "LHD_FXX_0980_6389_MNT_O_0M50_LAMB93_IGN69": "2025-02-20", "LHD_FXX_0980_6390_MNT_O_0M50_LAMB93_IGN69": "2025-02-20" }, "climb_origin": "discovered", "structure_own_ways": "none \u2014 the route carried no way list; own decks unmasked", "carriageway": { "stations": 74, "stations_resolved": 74, "width_median_m": 5.25, "width_p10_m": 3.58, "width_min_m": 2.0, "width_max_m": 10.75, "bounded_share": 0.608, "unbounded_share": 0.392, "confidence_median": 0.575, "width_median_bounded_m": 4.75, "window_m": [ 1566.0, 1591.0 ], "width_at_max25_m": 3.0, "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": 74, "stations_resolved": 74, "width_median_m": 5.75, "width_p10_m": 2.58, "width_min_m": 0.5, "width_max_m": 12.0, "bounded_share": 0.865, "unbounded_share": 0.135, "confidence_median": 1.0, "width_median_bounded_m": 5.5, "window_m": [ 1566.0, 1591.0 ], "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": "Saint-Sauveur", "county": "Hautes-Alpes", "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)" } }