{ "ocl_version": "0.1.0", "name": "Hahntennjoch (east side)", "slug": "hahntennjochstrasse-east", "confidence": "B", "reported_claims": [], "ladder": [ { "window_m": 2.0, "max_gradient_pct": 16.11309807786938, "diagnostic": true, "flags": [ "structure_excluded" ], "start_distance_m": 1161.0, "end_distance_m": 1163.0, "start_elevation_m": 901.3487640456904, "end_elevation_m": 901.6710260072477, "min_gradient_pct": -97.62907396566902, "suppressed_max_gradient_pct": 105.72533746719728, "suppressed_location_m": [ 2369.0, 2371.0 ] }, { "window_m": 3.0, "max_gradient_pct": 15.926379704978899, "diagnostic": true, "flags": [ "structure_excluded" ], "start_distance_m": 1146.0, "end_distance_m": 1149.0, "start_elevation_m": 899.0174514950183, "end_elevation_m": 899.4952428861677, "min_gradient_pct": -78.82509058997205, "suppressed_max_gradient_pct": 94.55574210957896, "suppressed_location_m": [ 2368.0, 2371.0 ] }, { "window_m": 5.0, "max_gradient_pct": 15.836479521672118, "diagnostic": false, "flags": [ "structure_excluded" ], "start_distance_m": 1144.0, "end_distance_m": 1149.0, "start_elevation_m": 898.7034189100841, "end_elevation_m": 899.4952428861677, "min_gradient_pct": -53.72943786048154, "suppressed_max_gradient_pct": 76.75409634967991, "suppressed_location_m": [ 2367.0, 2372.0 ] }, { "window_m": 10.0, "max_gradient_pct": 15.712603425641873, "diagnostic": false, "flags": [ "structure_excluded" ], "start_distance_m": 1142.0, "end_distance_m": 1152.0, "start_elevation_m": 898.3883145689931, "end_elevation_m": 899.9595749115573, "min_gradient_pct": -24.342977587294854, "suppressed_max_gradient_pct": 44.6241176501303, "suppressed_location_m": [ 2367.0, 2377.0 ] }, { "window_m": 20.0, "max_gradient_pct": 15.628996685546781, "diagnostic": false, "flags": [ "structure_excluded" ], "start_distance_m": 1142.0, "end_distance_m": 1162.0, "start_elevation_m": 898.3883145689931, "end_elevation_m": 901.5141139061025, "min_gradient_pct": -6.802686523128045, "suppressed_max_gradient_pct": 27.237894825364037, "suppressed_location_m": [ 2367.0, 2387.0 ] }, { "window_m": 25.0, "max_gradient_pct": 15.57650714703641, "diagnostic": false, "flags": [ "structure_excluded" ], "start_distance_m": 1142.0, "end_distance_m": 1167.0, "start_elevation_m": 898.3883145689931, "end_elevation_m": 902.2824413557522, "min_gradient_pct": -3.306611222068568, "suppressed_max_gradient_pct": 23.659919417184938, "suppressed_location_m": [ 2367.0, 2392.0 ] }, { "window_m": 50.0, "max_gradient_pct": 15.401034383804927, "diagnostic": false, "flags": [ "structure_excluded" ], "start_distance_m": 1142.0, "end_distance_m": 1192.0, "start_elevation_m": 898.3883145689931, "end_elevation_m": 906.0888317608956, "min_gradient_pct": -2.871546998052054, "suppressed_max_gradient_pct": 15.941627266455043, "suppressed_location_m": [ 2367.0, 2417.0 ] }, { "window_m": 100.0, "max_gradient_pct": 14.86743593406004, "diagnostic": false, "flags": [], "start_distance_m": 1101.0, "end_distance_m": 1201.0, "start_elevation_m": 892.5176870084808, "end_elevation_m": 907.3851229425409, "min_gradient_pct": -2.750289347300395 } ], "shape": { "ascent_concentration": 0.321, "concentration_window_frac": 0.25, "longest_pitch_10pct_m": 551.0, "shape_class": "sustained" }, "length_m": 13886.999999999573, "start_elevation_m": 815.2321250000127, "end_elevation_m": 1894.251565137939, "endpoint_gain_m": 1079.0194401379263, "overall_gradient_pct": 7.769996688542951, "accumulated_ascent_m": 1088.401037393708, "window_maxima": { "max_5m": { "gradient_pct": 15.836479521672118, "start_distance_m": 1144.0, "end_distance_m": 1149.0, "midpoint_distance_m": 1146.5, "start_elevation_m": 898.7034189100841, "end_elevation_m": 899.4952428861677, "start_xy": [ 4377046.794089193, 2682440.1300593116 ], "end_xy": [ 4377043.506964388, 2682443.8976594117 ] }, "max_10m": { "gradient_pct": 15.712603425641873, "start_distance_m": 1142.0, "end_distance_m": 1152.0, "midpoint_distance_m": 1147.0, "start_elevation_m": 898.3883145689931, "end_elevation_m": 899.9595749115573, "start_xy": [ 4377048.108939116, 2682438.6230192715 ], "end_xy": [ 4377041.534689505, 2682446.158219472 ] }, "max_20m": { "gradient_pct": 15.628996685546781, "start_distance_m": 1142.0, "end_distance_m": 1162.0, "midpoint_distance_m": 1152.0, "start_elevation_m": 898.3883145689931, "end_elevation_m": 901.5141139061025, "start_xy": [ 4377048.108939116, 2682438.6230192715 ], "end_xy": [ 4377034.960439894, 2682453.693419672 ] }, "max_25m": { "gradient_pct": 15.57650714703641, "start_distance_m": 1142.0, "end_distance_m": 1167.0, "midpoint_distance_m": 1154.5, "start_elevation_m": 898.3883145689931, "end_elevation_m": 902.2824413557522, "start_xy": [ 4377048.108939116, 2682438.6230192715 ], "end_xy": [ 4377031.673315089, 2682457.461019772 ] }, "max_50m": { "gradient_pct": 15.401034383804927, "start_distance_m": 1142.0, "end_distance_m": 1192.0, "midpoint_distance_m": 1167.0, "start_elevation_m": 898.3883145689931, "end_elevation_m": 906.0888317608956, "start_xy": [ 4377048.108939116, 2682438.6230192715 ], "end_xy": [ 4377015.237691063, 2682476.299020273 ] }, "max_100m": { "gradient_pct": 14.86743593406004, "start_distance_m": 1101.0, "end_distance_m": 1201.0, "midpoint_distance_m": 1151.0, "start_elevation_m": 892.5176870084808, "end_elevation_m": 907.3851229425409, "start_xy": [ 4377071.141398206, 2682404.773683972 ], "end_xy": [ 4377009.320437144, 2682483.0803241306 ] } }, "window_minima": { "min_5m": { "gradient_pct": -53.72943786048154, "start_distance_m": 2359.0, "end_distance_m": 2364.0, "midpoint_distance_m": 2361.5, "start_elevation_m": 1001.8170529446468, "end_elevation_m": 999.1305810516227, "start_xy": [ 4376943.15031448, 2683012.1164524434 ], "end_xy": [ 4376944.890453688, 2683016.8038734333 ] }, "min_10m": { "gradient_pct": -24.342977587294854, "start_distance_m": 2357.0, "end_distance_m": 2367.0, "midpoint_distance_m": 2362.0, "start_elevation_m": 1001.6424206948607, "end_elevation_m": 999.2081229361312, "start_xy": [ 4376942.454258797, 2683010.2414840474 ], "end_xy": [ 4376945.934537212, 2683019.616326027 ] }, "min_20m": { "gradient_pct": -6.802686523128045, "start_distance_m": 2347.0, "end_distance_m": 2367.0, "midpoint_distance_m": 2357.0, "start_elevation_m": 1000.5686602407568, "end_elevation_m": 999.2081229361312, "start_xy": [ 4376938.811685197, 2683000.9292659354 ], "end_xy": [ 4376945.934537212, 2683019.616326027 ] }, "min_25m": { "gradient_pct": -3.306611222068568, "start_distance_m": 2342.0, "end_distance_m": 2367.0, "midpoint_distance_m": 2354.5, "start_elevation_m": 1000.0347757416483, "end_elevation_m": 999.2081229361312, "start_xy": [ 4376936.952182562, 2682996.2879029945 ], "end_xy": [ 4376945.934537212, 2683019.616326027 ] }, "min_50m": { "gradient_pct": -2.871546998052054, "start_distance_m": 10130.0, "end_distance_m": 10180.0, "midpoint_distance_m": 10155.0, "start_elevation_m": 1598.1613963559469, "end_elevation_m": 1596.7256228569208, "start_xy": [ 4373865.621039639, 2686247.1524318787 ], "end_xy": [ 4373839.04712835, 2686289.320509086 ] }, "min_100m": { "gradient_pct": -2.750289347300395, "start_distance_m": 10109.0, "end_distance_m": 10209.0, "midpoint_distance_m": 10159.0, "start_elevation_m": 1598.6827125345183, "end_elevation_m": 1595.9324231872179, "start_xy": [ 4373875.070688938, 2686228.3996384675 ], "end_xy": [ 4373820.362034772, 2686311.4985480024 ] } }, "diagnostic_window_maxima": { "max_2m": { "gradient_pct": 16.11309807786938, "start_distance_m": 1161.0, "end_distance_m": 1163.0, "midpoint_distance_m": 1162.0, "start_elevation_m": 901.3487640456904, "end_elevation_m": 901.6710260072477, "start_xy": [ 4377035.617864856, 2682452.9398996523 ], "end_xy": [ 4377034.303014933, 2682454.4469396924 ] }, "max_3m": { "gradient_pct": 15.926379704978899, "start_distance_m": 1146.0, "end_distance_m": 1149.0, "midpoint_distance_m": 1147.5, "start_elevation_m": 899.0174514950183, "end_elevation_m": 899.4952428861677, "start_xy": [ 4377045.479239271, 2682441.6370993517 ], "end_xy": [ 4377043.506964388, 2682443.8976594117 ] } }, "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": 0.008, "windows_resited": [ 2.0, 3.0, 5.0, 10.0, 20.0, 25.0, 50.0 ], "windows_unresolved": [] }, "overhead_obstruction": { "obstruction_threshold_m": 2.0, "obstructed_fraction": 0.008, "obstruction_max_height_m": 14.82, "flagged_windows_m": [] }, "excluded_ranges_m": [ [ 2028.0, 2033.0 ], [ 2337.0, 2393.0 ], [ 8786.0, 8840.0 ] ], "review": [], "extent": [] }, "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:3035", "elevation_resolution_m": 1.0, "elevation_tiles": [ "data/cache/at/bev-als_dtm_E4366-N2685.tif", "data/cache/at/bev-als_dtm_E4366-N2686.tif", "data/cache/at/bev-als_dtm_E4367-N2685.tif", "data/cache/at/bev-als_dtm_E4367-N2686.tif", "data/cache/at/bev-als_dtm_E4368-N2685.tif", "data/cache/at/bev-als_dtm_E4368-N2686.tif", "data/cache/at/bev-als_dtm_E4369-N2685.tif", "data/cache/at/bev-als_dtm_E4369-N2686.tif", "data/cache/at/bev-als_dtm_E4370-N2685.tif", "data/cache/at/bev-als_dtm_E4370-N2686.tif", "data/cache/at/bev-als_dtm_E4371-N2685.tif", "data/cache/at/bev-als_dtm_E4371-N2686.tif", "data/cache/at/bev-als_dtm_E4372-N2686.tif", "data/cache/at/bev-als_dtm_E4373-N2685.tif", "data/cache/at/bev-als_dtm_E4373-N2686.tif", "data/cache/at/bev-als_dtm_E4374-N2685.tif", "data/cache/at/bev-als_dtm_E4374-N2686.tif", "data/cache/at/bev-als_dtm_E4375-N2685.tif", "data/cache/at/bev-als_dtm_E4376-N2681.tif", "data/cache/at/bev-als_dtm_E4376-N2682.tif", "data/cache/at/bev-als_dtm_E4376-N2683.tif", "data/cache/at/bev-als_dtm_E4376-N2684.tif", "data/cache/at/bev-als_dtm_E4376-N2685.tif", "data/cache/at/bev-als_dtm_E4376-N2686.tif", "data/cache/at/bev-als_dtm_E4377-N2681.tif", "data/cache/at/bev-als_dtm_E4377-N2682.tif", "data/cache/at/bev-als_dtm_E4377-N2683.tif", "data/cache/at/bev-als_dtm_E4377-N2684.tif", "data/cache/at/bev-als_dtm_E4377-N2685.tif" ], "calculated_at": "2026-09-15T05:42:00+00:00", "road_source": "OpenStreetMap (local PBF extract)", "road_attribution": "\u00a9 OpenStreetMap contributors, ODbL", "osm_pbf_path": "data/cache/pbf/austria-2026-09-11-batch-at-passes.osm.pbf", "osm_snapshot": "", "run_id": "at-passes-260915", "elevation_provider": "BEV ALS DTM 1 m", "elevation_licence": "Creative Commons Attribution 4.0 (CC BY 4.0) \u2014 \u00a9 BEV / L\u00e4nder, data.gv.at", "elevation_dataset": "ALS DTM H\u00f6henraster 1 m (Bundesamt f\u00fcr Eich- und Vermessungswesen with the L\u00e4nder), EPSG:3035", "elevation_tile_ids": [ "E4366-N2685", "E4366-N2686", "E4367-N2685", "E4367-N2686", "E4368-N2685", "E4368-N2686", "E4369-N2685", "E4369-N2686", "E4370-N2685", "E4370-N2686", "E4371-N2685", "E4371-N2686", "E4372-N2686", "E4373-N2685", "E4373-N2686", "E4374-N2685", "E4374-N2686", "E4375-N2685", "E4376-N2681", "E4376-N2682", "E4376-N2683", "E4376-N2684", "E4376-N2685", "E4376-N2686", "E4377-N2681", "E4377-N2682", "E4377-N2683", "E4377-N2684", "E4377-N2685" ], "elevation_blocks": [ "N2650000E4350000@2022-09-15" ], "route_summit_trim_m": 5081.2, "route_summit_trim_loss_m": 500.5, "climb_origin": "named-pass", "structure_own_ways": "none \u2014 the route carried no way list; own decks unmasked", "structure_mask_ranges_m": [ [ 2342.6, 2372.6 ], [ 2359.0, 2389.0 ], [ 8791.6, 8821.6 ], [ 8805.8, 8835.8 ] ], "license": "ODbL-1.0", "license_url": "https://howsteep.org/licensing" }, "area": { "place": "Imst", "county": "Tirol", "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)" } }