{ "ocl_version": "0.1.0", "name": "Chemin de Peyre Amoroure", "slug": "chemin-de-peyre-amoroure", "confidence": "B", "reported_claims": [], "ladder": [ { "window_m": 2.0, "max_gradient_pct": 39.044604048592646, "diagnostic": true, "flags": [ "structure_excluded", "canopy_or_structure" ], "start_distance_m": 2586.0, "end_distance_m": 2588.0, "start_elevation_m": 1252.0245407639654, "end_elevation_m": 1252.8054328449373, "min_gradient_pct": -215.10276436654294, "suppressed_max_gradient_pct": 216.43386892765193, "suppressed_location_m": [ 308.0, 310.0 ] }, { "window_m": 3.0, "max_gradient_pct": 35.46138167372798, "diagnostic": true, "flags": [ "structure_excluded", "canopy_or_structure" ], "start_distance_m": 2585.0, "end_distance_m": 2588.0, "start_elevation_m": 1251.7415913947254, "end_elevation_m": 1252.8054328449373, "min_gradient_pct": -140.57092649759397, "suppressed_max_gradient_pct": 155.8981277548355, "suppressed_location_m": [ 308.0, 311.0 ] }, { "window_m": 5.0, "max_gradient_pct": 34.3103499513154, "diagnostic": false, "flags": [ "structure_excluded", "canopy_or_structure" ], "start_distance_m": 2609.0, "end_distance_m": 2614.0, "start_elevation_m": 1259.066030482287, "end_elevation_m": 1260.7815479798528, "min_gradient_pct": -82.00616221965447, "suppressed_max_gradient_pct": 95.66435294820621, "suppressed_location_m": [ 308.0, 313.0 ] }, { "window_m": 10.0, "max_gradient_pct": 33.72454259935466, "diagnostic": false, "flags": [ "structure_excluded", "canopy_or_structure" ], "start_distance_m": 2607.0, "end_distance_m": 2617.0, "start_elevation_m": 1258.4301849771182, "end_elevation_m": 1261.8026392370537, "min_gradient_pct": -38.47832449389671, "suppressed_max_gradient_pct": 51.15705736654945, "suppressed_location_m": [ 308.0, 318.0 ] }, { "window_m": 20.0, "max_gradient_pct": 31.220077907305495, "diagnostic": false, "flags": [ "canopy_or_structure" ], "start_distance_m": 2598.0, "end_distance_m": 2618.0, "start_elevation_m": 1255.8342567816926, "end_elevation_m": 1262.0782723631537, "min_gradient_pct": -16.126565162317092 }, { "window_m": 25.0, "max_gradient_pct": 31.115756612170117, "diagnostic": false, "flags": [ "canopy_or_structure" ], "start_distance_m": 2591.0, "end_distance_m": 2616.0, "start_elevation_m": 1253.6932362810858, "end_elevation_m": 1261.4721754341283, "min_gradient_pct": -11.771643921675604 }, { "window_m": 50.0, "max_gradient_pct": 27.383860598724368, "diagnostic": false, "flags": [ "canopy_or_structure" ], "start_distance_m": 2569.0, "end_distance_m": 2619.0, "start_elevation_m": 1248.5680699164327, "end_elevation_m": 1262.260000215795, "min_gradient_pct": -4.407885700225961 }, { "window_m": 100.0, "max_gradient_pct": 21.970570048653826, "diagnostic": false, "flags": [ "canopy_or_structure" ], "start_distance_m": 2527.0, "end_distance_m": 2627.0, "start_elevation_m": 1241.3646234767982, "end_elevation_m": 1263.335193525452, "min_gradient_pct": -0.5082229353574803 } ], "shape": { "ascent_concentration": 0.352, "concentration_window_frac": 0.25, "longest_pitch_10pct_m": 252.0, "shape_class": "sustained" }, "length_m": 2734.993405730131, "start_elevation_m": 1026.638765386698, "end_elevation_m": 1275.8546590234375, "endpoint_gain_m": 249.21589363673957, "overall_gradient_pct": 9.112120457570505, "accumulated_ascent_m": 255.3954732521904, "window_maxima": { "max_5m": { "gradient_pct": 34.3103499513154, "start_distance_m": 2609.0, "end_distance_m": 2614.0, "midpoint_distance_m": 2611.5, "start_elevation_m": 1259.066030482287, "end_elevation_m": 1260.7815479798528, "start_xy": [ 966553.1090378875, 6389656.790914331 ], "end_xy": [ 966553.0621843755, 6389661.790694801 ] }, "max_10m": { "gradient_pct": 33.72454259935466, "start_distance_m": 2607.0, "end_distance_m": 2617.0, "midpoint_distance_m": 2612.0, "start_elevation_m": 1258.4301849771182, "end_elevation_m": 1261.8026392370537, "start_xy": [ 966553.1277792924, 6389654.791002142 ], "end_xy": [ 966553.0340722682, 6389664.790563082 ] }, "max_20m": { "gradient_pct": 31.220077907305495, "start_distance_m": 2598.0, "end_distance_m": 2618.0, "midpoint_distance_m": 2608.0, "start_elevation_m": 1255.8342567816926, "end_elevation_m": 1262.0782723631537, "start_xy": [ 966553.0075422535, 6389645.82227481 ], "end_xy": [ 966553.0247015657, 6389665.790519177 ] }, "max_25m": { "gradient_pct": 31.115756612170117, "start_distance_m": 2591.0, "end_distance_m": 2616.0, "midpoint_distance_m": 2603.5, "start_elevation_m": 1253.6932362810858, "end_elevation_m": 1261.4721754341283, "start_xy": [ 966550.8789221547, 6389639.153768495 ], "end_xy": [ 966553.0434429706, 6389663.790606989 ] }, "max_50m": { "gradient_pct": 27.383860598724368, "start_distance_m": 2569.0, "end_distance_m": 2619.0, "midpoint_distance_m": 2594.0, "start_elevation_m": 1248.5680699164327, "end_elevation_m": 1262.260000215795, "start_xy": [ 966546.1593408763, 6389617.781703638 ], "end_xy": [ 966553.0153308633, 6389666.790475271 ] }, "max_100m": { "gradient_pct": 21.970570048653826, "start_distance_m": 2527.0, "end_distance_m": 2627.0, "midpoint_distance_m": 2577.0, "start_elevation_m": 1241.3646234767982, "end_elevation_m": 1263.335193525452, "start_xy": [ 966553.314243683, 6389576.877627023 ], "end_xy": [ 966551.1209898966, 6389674.4809978455 ] } }, "window_minima": { "min_5m": { "gradient_pct": -82.00616221965447, "start_distance_m": 303.0, "end_distance_m": 308.0, "midpoint_distance_m": 305.5, "start_elevation_m": 1035.7065032545572, "end_elevation_m": 1031.6061951435745, "start_xy": [ 967647.9279867342, 6388972.05265094 ], "end_xy": [ 967645.8926598774, 6388976.619646077 ] }, "min_10m": { "gradient_pct": -38.47832449389671, "start_distance_m": 298.0, "end_distance_m": 308.0, "midpoint_distance_m": 303.0, "start_elevation_m": 1035.4540275929642, "end_elevation_m": 1031.6061951435745, "start_xy": [ 967649.963313591, 6388967.485655801 ], "end_xy": [ 967645.8926598774, 6388976.619646077 ] }, "min_20m": { "gradient_pct": -16.126565162317092, "start_distance_m": 288.0, "end_distance_m": 308.0, "midpoint_distance_m": 298.0, "start_elevation_m": 1034.831508176038, "end_elevation_m": 1031.6061951435745, "start_xy": [ 967653.8282594733, 6388958.26417122 ], "end_xy": [ 967645.8926598774, 6388976.619646077 ] }, "min_25m": { "gradient_pct": -11.771643921675604, "start_distance_m": 283.0, "end_distance_m": 308.0, "midpoint_distance_m": 295.5, "start_elevation_m": 1034.5491061239934, "end_elevation_m": 1031.6061951435745, "start_xy": [ 967655.7063622167, 6388953.630303496 ], "end_xy": [ 967645.8926598774, 6388976.619646077 ] }, "min_50m": { "gradient_pct": -4.407885700225961, "start_distance_m": 258.0, "end_distance_m": 308.0, "midpoint_distance_m": 283.0, "start_elevation_m": 1033.8101379936875, "end_elevation_m": 1031.6061951435745, "start_xy": [ 967665.9336388953, 6388930.8678443 ], "end_xy": [ 967645.8926598774, 6388976.619646077 ] }, "min_100m": { "gradient_pct": -0.5082229353574803, "start_distance_m": 208.0, "end_distance_m": 308.0, "midpoint_distance_m": 258.0, "start_elevation_m": 1032.114418078932, "end_elevation_m": 1031.6061951435745, "start_xy": [ 967709.6085250138, 6388913.318335903 ], "end_xy": [ 967645.8926598774, 6388976.619646077 ] } }, "diagnostic_window_maxima": { "max_2m": { "gradient_pct": 39.044604048592646, "start_distance_m": 2586.0, "end_distance_m": 2588.0, "midpoint_distance_m": 2587.0, "start_elevation_m": 1252.0245407639654, "end_elevation_m": 1252.8054328449373, "start_xy": [ 966549.358479227, 6389634.390549698 ], "end_xy": [ 966549.966656398, 6389636.295837217 ] }, "max_3m": { "gradient_pct": 35.46138167372798, "start_distance_m": 2585.0, "end_distance_m": 2588.0, "midpoint_distance_m": 2586.5, "start_elevation_m": 1251.7415913947254, "end_elevation_m": 1252.8054328449373, "start_xy": [ 966549.0543906415, 6389633.437905939 ], "end_xy": [ 966549.966656398, 6389636.295837217 ] } }, "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": 0.031, "windows_resited": [ 2.0, 3.0, 5.0, 10.0 ], "windows_unresolved": [] }, "overhead_obstruction": { "obstruction_threshold_m": 2.0, "obstructed_fraction": 0.057, "obstruction_max_height_m": 13.51, "flagged_windows_m": [ 2, 3, 5, 10, 20, 25, 50, 100 ] }, "excluded_ranges_m": [ [ 0.0, 20.0 ], [ 289.0, 352.0 ] ], "review": [], "extent": [ "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_E966-N6388_0m5.tif", "data/cache/fr/ign-lidarhd_dtm_E966-N6389_0m5.tif", "data/cache/fr/ign-lidarhd_dtm_E967-N6388_0m5.tif", "data/cache/fr/ign-lidarhd_dtm_E967-N6389_0m5.tif" ], "calculated_at": "2026-09-17T03:26:42+00:00", "road_source": "OpenStreetMap (local PBF extract)", "road_attribution": "\u00a9 OpenStreetMap contributors, ODbL", "osm_pbf_path": "data/cache/pbf/block-batch-fr-alps3.osm.pbf", "osm_snapshot": "", "run_id": "fr-alps3", "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": [ "E966-N6388", "E966-N6389", "E967-N6388", "E967-N6389" ], "elevation_blocks": [ "21LHD8QN@2025-02-20" ], "ign_dalles": [ "LHD_FXX_0966_6389_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0966_6390_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0967_6389_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0967_6390_MNT_O_0M50_LAMB93_IGN69" ], "ign_missions": [ "21LHD8QN" ], "ign_editions": [ "2025-02-20" ], "ign_dsm_edition": { "LHD_FXX_0966_6389_MNT_O_0M50_LAMB93_IGN69": "2025-02-20", "LHD_FXX_0966_6390_MNT_O_0M50_LAMB93_IGN69": "2025-02-20", "LHD_FXX_0967_6389_MNT_O_0M50_LAMB93_IGN69": "2025-02-20", "LHD_FXX_0967_6390_MNT_O_0M50_LAMB93_IGN69": "2025-02-20" }, "climb_origin": "discovered", "structure_own_ways": 8, "structure_mask_ranges_m": [ [ 294.5, 322.1 ], [ 0.0, 15.0 ] ], "mask_basin_extension_m": 25.0, "carriageway": { "stations": 116, "stations_resolved": 116, "width_median_m": 5.25, "width_p10_m": 3.25, "width_min_m": 2.25, "width_max_m": 12.0, "bounded_share": 0.509, "unbounded_share": 0.491, "confidence_median": 0.516, "width_median_bounded_m": 4.75, "window_m": [ 2591.0, 2616.0 ], "width_at_max25_m": 2.75, "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": 116, "stations_resolved": 116, "width_median_m": 6.75, "width_p10_m": 1.5, "width_min_m": 0.5, "width_max_m": 12.0, "bounded_share": 0.776, "unbounded_share": 0.224, "confidence_median": 1.0, "width_median_bounded_m": 6.0, "window_m": [ 2591.0, 2616.0 ], "width_at_max25_m": 2.25, "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": "Saint-Apollinaire", "county": "Hautes-Alpes", "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)" } }