{ "ocl_version": "0.1.0", "name": "Route du Ch\u00e2teau d'Eau", "slug": "route-du-chateau-d-eau-5", "confidence": "B", "reported_claims": [], "ladder": [ { "window_m": 2.0, "max_gradient_pct": 21.898794246160946, "diagnostic": true, "flags": [ "canopy_or_structure" ], "start_distance_m": 198.0, "end_distance_m": 200.0, "start_elevation_m": 105.57629324521685, "end_elevation_m": 106.01426913014006, "min_gradient_pct": -6.787852178173637 }, { "window_m": 3.0, "max_gradient_pct": 21.885787570030384, "diagnostic": true, "flags": [ "canopy_or_structure" ], "start_distance_m": 198.0, "end_distance_m": 201.0, "start_elevation_m": 105.57629324521685, "end_elevation_m": 106.23286687231776, "min_gradient_pct": -6.575280588160126 }, { "window_m": 5.0, "max_gradient_pct": 21.83840576575932, "diagnostic": false, "flags": [ "canopy_or_structure" ], "start_distance_m": 198.0, "end_distance_m": 203.0, "start_elevation_m": 105.57629324521685, "end_elevation_m": 106.66821353350481, "min_gradient_pct": -6.10387369565899 }, { "window_m": 10.0, "max_gradient_pct": 21.341307379360046, "diagnostic": false, "flags": [ "canopy_or_structure" ], "start_distance_m": 198.0, "end_distance_m": 208.0, "start_elevation_m": 105.57629324521685, "end_elevation_m": 107.71042398315285, "min_gradient_pct": -5.543777967388195 }, { "window_m": 20.0, "max_gradient_pct": 20.858891803939912, "diagnostic": false, "flags": [ "canopy_or_structure" ], "start_distance_m": 188.0, "end_distance_m": 208.0, "start_elevation_m": 103.53864562236487, "end_elevation_m": 107.71042398315285, "min_gradient_pct": -3.3205684014619408 }, { "window_m": 25.0, "max_gradient_pct": 20.813239920445994, "diagnostic": false, "flags": [ "canopy_or_structure" ], "start_distance_m": 185.0, "end_distance_m": 210.0, "start_elevation_m": 102.92693022757935, "end_elevation_m": 108.13024020769085, "min_gradient_pct": -2.4407220742724576 }, { "window_m": 50.0, "max_gradient_pct": 20.174233419595993, "diagnostic": false, "flags": [ "canopy_or_structure" ], "start_distance_m": 169.0, "end_distance_m": 219.0, "start_elevation_m": 99.73632472303241, "end_elevation_m": 109.8234414328304, "min_gradient_pct": 0.5878694303252701 }, { "window_m": 100.0, "max_gradient_pct": 19.141280843285045, "diagnostic": false, "flags": [ "canopy_or_structure" ], "start_distance_m": 155.0, "end_distance_m": 255.0, "start_elevation_m": 97.21260555139456, "end_elevation_m": 116.3538863946796, "min_gradient_pct": 1.1972260696215642 } ], "shape": { "ascent_concentration": 0.551, "concentration_window_frac": 0.25, "longest_pitch_10pct_m": 357.0, "shape_class": "stepped" }, "length_m": 971.2140522156046, "start_elevation_m": 85.1047174827571, "end_elevation_m": 161.25061703027487, "endpoint_gain_m": 76.14589954751777, "overall_gradient_pct": 7.8402798408659935, "accumulated_ascent_m": 76.89558430215486, "window_maxima": { "max_5m": { "gradient_pct": 21.83840576575932, "start_distance_m": 198.0, "end_distance_m": 203.0, "midpoint_distance_m": 200.5, "start_elevation_m": 105.57629324521685, "end_elevation_m": 106.66821353350481, "start_xy": [ 531739.6623953179, 6328752.682263735 ], "end_xy": [ 531742.5401273832, 6328748.593418157 ] }, "max_10m": { "gradient_pct": 21.341307379360046, "start_distance_m": 198.0, "end_distance_m": 208.0, "midpoint_distance_m": 203.0, "start_elevation_m": 105.57629324521685, "end_elevation_m": 107.71042398315285, "start_xy": [ 531739.6623953179, 6328752.682263735 ], "end_xy": [ 531745.4178594486, 6328744.504572579 ] }, "max_20m": { "gradient_pct": 20.858891803939912, "start_distance_m": 188.0, "end_distance_m": 208.0, "midpoint_distance_m": 198.0, "start_elevation_m": 103.53864562236487, "end_elevation_m": 107.71042398315285, "start_xy": [ 531733.4971017863, 6328760.504066423 ], "end_xy": [ 531745.4178594486, 6328744.504572579 ] }, "max_25m": { "gradient_pct": 20.813239920445994, "start_distance_m": 185.0, "end_distance_m": 210.0, "midpoint_distance_m": 197.5, "start_elevation_m": 102.92693022757935, "end_elevation_m": 108.13024020769085, "start_xy": [ 531731.3100878918, 6328762.557592712 ], "end_xy": [ 531746.5689522747, 6328742.869034348 ] }, "max_50m": { "gradient_pct": 20.174233419595993, "start_distance_m": 169.0, "end_distance_m": 219.0, "midpoint_distance_m": 194.0, "start_elevation_m": 99.73632472303241, "end_elevation_m": 109.8234414328304, "start_xy": [ 531719.6331489154, 6328773.494800312 ], "end_xy": [ 531752.5853886174, 6328736.178496534 ] }, "max_100m": { "gradient_pct": 19.141280843285045, "start_distance_m": 155.0, "end_distance_m": 255.0, "midpoint_distance_m": 205.0, "start_elevation_m": 97.21260555139456, "end_elevation_m": 116.3538863946796, "start_xy": [ 531708.6454739992, 6328782.170686431 ], "end_xy": [ 531779.0055475594, 6328711.91601958 ] } }, "window_minima": { "min_5m": { "gradient_pct": -6.10387369565899, "start_distance_m": 3.0, "end_distance_m": 8.0, "midpoint_distance_m": 5.5, "start_elevation_m": 85.12746547032407, "end_elevation_m": 84.82227178554112, "start_xy": [ 531636.8952333044, 6328904.001829646 ], "end_xy": [ 531635.0139809174, 6328899.603645005 ] }, "min_10m": { "gradient_pct": -5.543777967388195, "start_distance_m": 3.0, "end_distance_m": 13.0, "midpoint_distance_m": 8.0, "start_elevation_m": 85.12746547032407, "end_elevation_m": 84.57308767358525, "start_xy": [ 531636.8952333044, 6328904.001829646 ], "end_xy": [ 531634.8004485031, 6328894.608206696 ] }, "min_20m": { "gradient_pct": -3.3205684014619408, "start_distance_m": 3.0, "end_distance_m": 23.0, "midpoint_distance_m": 13.0, "start_elevation_m": 85.12746547032407, "end_elevation_m": 84.46335179003168, "start_xy": [ 531636.8952333044, 6328904.001829646 ], "end_xy": [ 531634.4818397542, 6328884.622158177 ] }, "min_25m": { "gradient_pct": -2.4407220742724576, "start_distance_m": 2.0, "end_distance_m": 27.0, "midpoint_distance_m": 14.5, "start_elevation_m": 85.12057008146894, "end_elevation_m": 84.51038956290083, "start_xy": [ 531637.4964888695, 6328904.800886431 ], "end_xy": [ 531635.0070945345, 6328880.656794712 ] }, "min_50m": { "gradient_pct": 0.5878694303252701, "start_distance_m": 0.0, "end_distance_m": 50.0, "midpoint_distance_m": 25.0, "start_elevation_m": 85.1047174827571, "end_elevation_m": 85.39865219791973, "start_xy": [ 531638.699, 6328906.399 ], "end_xy": [ 531640.5320361429, 6328858.403436982 ] }, "min_100m": { "gradient_pct": 1.1972260696215642, "start_distance_m": 613.0, "end_distance_m": 713.0, "midpoint_distance_m": 663.0, "start_elevation_m": 153.64562073329103, "end_elevation_m": 154.8428468029126, "start_xy": [ 532113.882718153, 6328664.308228687 ], "end_xy": [ 532194.439178253, 6328605.109765126 ] } }, "diagnostic_window_maxima": { "max_2m": { "gradient_pct": 21.898794246160946, "start_distance_m": 198.0, "end_distance_m": 200.0, "midpoint_distance_m": 199.0, "start_elevation_m": 105.57629324521685, "end_elevation_m": 106.01426913014006, "start_xy": [ 531739.6623953179, 6328752.682263735 ], "end_xy": [ 531740.8134881441, 6328751.046725504 ] }, "max_3m": { "gradient_pct": 21.885787570030384, "start_distance_m": 198.0, "end_distance_m": 201.0, "midpoint_distance_m": 199.5, "start_elevation_m": 105.57629324521685, "end_elevation_m": 106.23286687231776, "start_xy": [ 531739.6623953179, 6328752.682263735 ], "end_xy": [ 531741.3890345572, 6328750.228956388 ] } }, "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": 0.107, "obstruction_max_height_m": 14.89, "flagged_windows_m": [ 2, 3, 5, 10, 20, 25, 50, 100 ] }, "review": [], "extent": [] }, "provenance": { "analysis_version": "0.1.0", "run_manifest": { "manifest_version": "1", "code_git_sha": "16bcc1553fe58b280e0c4a66a3ab0980530490a6", "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-so6", "road_pbf": "block-batch-fr-so6.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": "sha256:18f786cf9fa98070" }, "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_E531-N6328_0m5@21LHD2HP-2026-03-20.tif", "data/cache/fr/ign-lidarhd_dtm_E532-N6328_0m5@21LHD2HP-2026-03-20.tif" ], "calculated_at": "2026-09-27T04:08:18+00:00", "road_source": "OpenStreetMap (local PBF extract)", "road_attribution": "\u00a9 OpenStreetMap contributors, ODbL", "osm_pbf_path": "data/cache/pbf/block-batch-fr-so6.osm.pbf", "osm_snapshot": "", "run_id": "fr-so6", "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": [ "E531-N6328", "E532-N6328" ], "elevation_blocks": [ "21LHD2HP@2026-03-20" ], "ign_dalles": [ "LHD_FXX_0531_6329_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0532_6329_MNT_O_0M50_LAMB93_IGN69" ], "ign_missions": [ "21LHD2HP" ], "ign_editions": [ "2026-03-20" ], "ign_dsm_edition": { "LHD_FXX_0531_6329_MNT_O_0M50_LAMB93_IGN69": "2026-03-20", "LHD_FXX_0532_6329_MNT_O_0M50_LAMB93_IGN69": "2026-03-20" }, "climb_origin": "discovered", "seam_filled_samples": { "count": 0, "distances_m": [] }, "seam_filled_in_maximum": false, "structure_own_ways": "none \u2014 the route carried no way list and no mapped way runs along it; own decks unmasked", "carriageway": { "stations": 44, "stations_resolved": 44, "width_median_m": 5.0, "width_p10_m": 4.25, "width_min_m": 3.0, "width_max_m": 12.0, "bounded_share": 0.295, "unbounded_share": 0.705, "confidence_median": 0.0, "width_median_bounded_m": 5.0, "window_m": [ 185.0, 210.0 ], "width_at_max25_m": 4.75, "window_stations": 6, "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": 44, "stations_resolved": 44, "width_median_m": 7.38, "width_p10_m": 2.5, "width_min_m": 0.5, "width_max_m": 12.0, "bounded_share": 0.75, "unbounded_share": 0.25, "confidence_median": 1.0, "width_median_bounded_m": 6.5, "window_m": [ 185.0, 210.0 ], "width_at_max25_m": 2.5, "window_stations": 6, "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": "Bardigues", "county": "Tarn-et-Garonne", "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)" } }