{ "ocl_version": "0.1.0", "name": "Rue des Tours", "slug": "rue-des-tours-2", "confidence": "B", "reported_claims": [], "ladder": [ { "window_m": 2.0, "max_gradient_pct": 31.776141430438543, "diagnostic": true, "flags": [], "start_distance_m": 328.0, "end_distance_m": 330.0, "start_elevation_m": 231.39869972349402, "end_elevation_m": 232.0342225521028, "min_gradient_pct": -13.77255650518947 }, { "window_m": 3.0, "max_gradient_pct": 27.08283047860789, "diagnostic": true, "flags": [], "start_distance_m": 328.0, "end_distance_m": 331.0, "start_elevation_m": 231.39869972349402, "end_elevation_m": 232.21118463785226, "min_gradient_pct": -10.916414088567686 }, { "window_m": 5.0, "max_gradient_pct": 24.743717014160325, "diagnostic": false, "flags": [], "start_distance_m": 185.0, "end_distance_m": 190.0, "start_elevation_m": 221.19193581065866, "end_elevation_m": 222.42912166136668, "min_gradient_pct": -6.707701661622423 }, { "window_m": 10.0, "max_gradient_pct": 22.63269812770659, "diagnostic": false, "flags": [], "start_distance_m": 369.0, "end_distance_m": 379.0, "start_elevation_m": 239.06479217107034, "end_elevation_m": 241.328061983841, "min_gradient_pct": -5.624309952889632 }, { "window_m": 20.0, "max_gradient_pct": 21.978844488809557, "diagnostic": false, "flags": [], "start_distance_m": 366.0, "end_distance_m": 386.0, "start_elevation_m": 238.42602962856125, "end_elevation_m": 242.82179852632316, "min_gradient_pct": -5.458487109854104 }, { "window_m": 25.0, "max_gradient_pct": 21.81923886162315, "diagnostic": false, "flags": [], "start_distance_m": 357.0, "end_distance_m": 382.0, "start_elevation_m": 236.52694063049162, "end_elevation_m": 241.9817503458974, "min_gradient_pct": -5.393045667920205 }, { "window_m": 50.0, "max_gradient_pct": 20.755286395542043, "diagnostic": false, "flags": [], "start_distance_m": 346.0, "end_distance_m": 396.0, "start_elevation_m": 234.43624310378533, "end_elevation_m": 244.81388630155635, "min_gradient_pct": -4.13054823081967 }, { "window_m": 100.0, "max_gradient_pct": 17.430839644660495, "diagnostic": false, "flags": [ "canopy_or_structure" ], "start_distance_m": 61.0, "end_distance_m": 161.0, "start_elevation_m": 200.55401737529786, "end_elevation_m": 217.98485701995835, "min_gradient_pct": -1.8606760255265726 } ], "shape": { "ascent_concentration": 0.468, "concentration_window_frac": 0.25, "longest_pitch_10pct_m": 192.0, "shape_class": "stepped" }, "length_m": 754.9628615056408, "start_elevation_m": 193.25158978029864, "end_elevation_m": 252.66602097534255, "endpoint_gain_m": 59.4144311950439, "overall_gradient_pct": 7.869848203731805, "accumulated_ascent_m": 63.57695359351061, "window_maxima": { "max_5m": { "gradient_pct": 24.743717014160325, "start_distance_m": 185.0, "end_distance_m": 190.0, "midpoint_distance_m": 187.5, "start_elevation_m": 221.19193581065866, "end_elevation_m": 222.42912166136668, "start_xy": [ 837554.339715915, 6539550.5688654855 ], "end_xy": [ 837550.7368487077, 6539554.035758126 ] }, "max_10m": { "gradient_pct": 22.63269812770659, "start_distance_m": 369.0, "end_distance_m": 379.0, "midpoint_distance_m": 374.0, "start_elevation_m": 239.06479217107034, "end_elevation_m": 241.328061983841, "start_xy": [ 837463.4603437248, 6539629.584399554 ], "end_xy": [ 837473.229814096, 6539631.719217735 ] }, "max_20m": { "gradient_pct": 21.978844488809557, "start_distance_m": 366.0, "end_distance_m": 386.0, "midpoint_distance_m": 376.0, "start_elevation_m": 238.42602962856125, "end_elevation_m": 242.82179852632316, "start_xy": [ 837460.5295026136, 6539628.943954099 ], "end_xy": [ 837480.0684433557, 6539633.213590463 ] }, "max_25m": { "gradient_pct": 21.81923886162315, "start_distance_m": 357.0, "end_distance_m": 382.0, "midpoint_distance_m": 369.5, "start_elevation_m": 236.52694063049162, "end_elevation_m": 241.9817503458974, "start_xy": [ 837451.7369792796, 6539627.022617736 ], "end_xy": [ 837476.1606552072, 6539632.35966319 ] }, "max_50m": { "gradient_pct": 20.755286395542043, "start_distance_m": 346.0, "end_distance_m": 396.0, "midpoint_distance_m": 371.0, "start_elevation_m": 234.43624310378533, "end_elevation_m": 244.81388630155635, "start_xy": [ 837440.9905618713, 6539624.674317736 ], "end_xy": [ 837489.8379137268, 6539635.348408644 ] }, "max_100m": { "gradient_pct": 17.430839644660495, "start_distance_m": 61.0, "end_distance_m": 161.0, "midpoint_distance_m": 111.0, "start_elevation_m": 200.55401737529786, "end_elevation_m": 217.98485701995835, "start_xy": [ 837482.0914133027, 6539486.939898721 ], "end_xy": [ 837564.7353677169, 6539532.80917977 ] } }, "window_minima": { "min_5m": { "gradient_pct": -6.707701661622423, "start_distance_m": 662.0, "end_distance_m": 667.0, "midpoint_distance_m": 664.5, "start_elevation_m": 252.6385014183689, "end_elevation_m": 252.30311633528777, "start_xy": [ 837599.7086822026, 6539795.559804745 ], "end_xy": [ 837603.9239416738, 6539798.248965876 ] }, "min_10m": { "gradient_pct": -5.624309952889632, "start_distance_m": 663.0, "end_distance_m": 673.0, "midpoint_distance_m": 668.0, "start_elevation_m": 252.58795915711804, "end_elevation_m": 252.02552816182907, "start_xy": [ 837600.5517340968, 6539796.097636972 ], "end_xy": [ 837608.9822530393, 6539801.475959234 ] }, "min_20m": { "gradient_pct": -5.458487109854104, "start_distance_m": 664.0, "end_distance_m": 684.0, "midpoint_distance_m": 674.0, "start_elevation_m": 252.52823054529435, "end_elevation_m": 251.43653312332353, "start_xy": [ 837601.394785991, 6539796.635469197 ], "end_xy": [ 837618.2558238758, 6539807.392113723 ] }, "min_25m": { "gradient_pct": -5.393045667920205, "start_distance_m": 663.0, "end_distance_m": 688.0, "midpoint_distance_m": 675.5, "start_elevation_m": 252.58795915711804, "end_elevation_m": 251.23969774013798, "start_xy": [ 837600.5517340968, 6539796.097636972 ], "end_xy": [ 837621.6280314528, 6539809.543442628 ] }, "min_50m": { "gradient_pct": -4.13054823081967, "start_distance_m": 651.0, "end_distance_m": 701.0, "midpoint_distance_m": 676.0, "start_elevation_m": 253.021702857581, "end_elevation_m": 250.95642874217117, "start_xy": [ 837590.4351113661, 6539789.643650256 ], "end_xy": [ 837628.4207624141, 6539820.488425532 ] }, "min_100m": { "gradient_pct": -1.8606760255265726, "start_distance_m": 601.0, "end_distance_m": 701.0, "midpoint_distance_m": 651.0, "start_elevation_m": 252.81710476769774, "end_elevation_m": 250.95642874217117, "start_xy": [ 837593.2806150173, 6539741.569628793 ], "end_xy": [ 837628.4207624141, 6539820.488425532 ] } }, "diagnostic_window_maxima": { "max_2m": { "gradient_pct": 31.776141430438543, "start_distance_m": 328.0, "end_distance_m": 330.0, "midpoint_distance_m": 329.0, "start_elevation_m": 231.39869972349402, "end_elevation_m": 232.0342225521028, "start_xy": [ 837429.8219186543, 6539614.068762653 ], "end_xy": [ 837429.6986254669, 6539615.882359599 ] }, "max_3m": { "gradient_pct": 27.08283047860789, "start_distance_m": 328.0, "end_distance_m": 331.0, "midpoint_distance_m": 329.5, "start_elevation_m": 231.39869972349402, "end_elevation_m": 232.21118463785226, "start_xy": [ 837429.8219186543, 6539614.068762653 ], "end_xy": [ 837429.8732830158, 6539616.866988839 ] } }, "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": 0.284, "obstruction_max_height_m": 16.57, "flagged_windows_m": [ 100 ] }, "review": [], "extent": [ "may_start_earlier" ] }, "provenance": { "analysis_version": "0.1.0", "run_manifest": { "manifest_version": "1", "code_git_sha": "c4fd6b4a89a9718922c7ed8acdf14e43dcf75a33", "code_git_dirty": "false", "analysis_version": "0.1.0", "analysis_config_digest": "sha256:8c94015b54267da4", "python": "3.14.4", "numpy": "2.5.3", "rasterio": "1.5.1", "pyproj": "3.8.0", "laspy": "2.7.0", "shapely": "2.1.2", "pyosmium": "4.3.1", "libosmium": "2.23.1", "gdal": "3.12.4", "proj": "9.8.1", "run_id": "fr-ju1", "road_pbf": "block-batch-fr-ju1.osm.pbf", "region_key": "france", "crs": "EPSG:2154", "elevation_provider_key": "ign-lidarhd", "tile_index": "wms-grid", "authority": "bdtopo", "registry_pbf": "france-vosges-2026-09-16.osm.pbf", "tile_index_snapshot": "sha256:78945c7930496bfe" }, "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_E837-N6539_0m5@21LHD5OK-2025-05-22.tif" ], "calculated_at": "2026-09-24T10:29:40+00:00", "road_source": "OpenStreetMap (local PBF extract)", "road_attribution": "\u00a9 OpenStreetMap contributors, ODbL", "osm_pbf_path": "data/cache/pbf/block-batch-fr-ju1.osm.pbf", "osm_snapshot": "", "run_id": "fr-ju1", "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": [ "E837-N6539" ], "elevation_blocks": [ "21LHD5OK@2025-05-22" ], "ign_dalles": [ "LHD_FXX_0837_6540_MNT_O_0M50_LAMB93_IGN69" ], "ign_missions": [ "21LHD5OK" ], "ign_editions": [ "2025-05-22" ], "ign_dsm_edition": { "LHD_FXX_0837_6540_MNT_O_0M50_LAMB93_IGN69": "2025-05-22" }, "climb_origin": "discovered", "structure_own_ways": 3, "carriageway": { "stations": 37, "stations_resolved": 37, "width_median_m": 4.25, "width_p10_m": 2.8, "width_min_m": 1.0, "width_max_m": 11.75, "bounded_share": 0.216, "unbounded_share": 0.784, "confidence_median": 0.0, "width_median_bounded_m": 3.38, "window_m": [ 357.0, 382.0 ], "width_at_max25_m": 4.0, "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": 37, "stations_resolved": 37, "width_median_m": 3.25, "width_p10_m": 1.0, "width_min_m": 0.5, "width_max_m": 9.25, "bounded_share": 0.946, "unbounded_share": 0.054, "confidence_median": 1.0, "width_median_bounded_m": 3.0, "window_m": [ 357.0, 382.0 ], "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": "Tr\u00e9voux", "county": "Ain", "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)" } }