{ "ocl_version": "0.1.0", "name": "Chemin de L'Aple", "slug": "chemin-de-l-aple", "confidence": "B", "reported_claims": [], "ladder": [ { "window_m": 2.0, "max_gradient_pct": 25.64113256040912, "diagnostic": true, "flags": [ "structure_excluded" ], "start_distance_m": 184.0, "end_distance_m": 186.0, "start_elevation_m": 390.5172618078692, "end_elevation_m": 391.0300844590774, "min_gradient_pct": -0.26177426706794904, "suppressed_max_gradient_pct": 58.345024762414255, "suppressed_location_m": [ 0.0, 2.0 ] }, { "window_m": 3.0, "max_gradient_pct": 24.595386685471492, "diagnostic": true, "flags": [ "structure_excluded" ], "start_distance_m": 183.0, "end_distance_m": 186.0, "start_elevation_m": 390.29222285851324, "end_elevation_m": 391.0300844590774, "min_gradient_pct": -0.1981224724678062, "suppressed_max_gradient_pct": 38.467558621552676, "suppressed_location_m": [ 0.0, 3.0 ] }, { "window_m": 5.0, "max_gradient_pct": 23.84623707333617, "diagnostic": false, "flags": [ "structure_excluded", "canopy_or_structure" ], "start_distance_m": 95.0, "end_distance_m": 100.0, "start_elevation_m": 377.980707422255, "end_elevation_m": 379.17301927592183, "min_gradient_pct": 0.192977621885575, "suppressed_max_gradient_pct": 24.200927193637654, "suppressed_location_m": [ 0.0, 5.0 ] }, { "window_m": 10.0, "max_gradient_pct": 22.37158828997167, "diagnostic": false, "flags": [], "start_distance_m": 178.0, "end_distance_m": 188.0, "start_elevation_m": 389.24083789297345, "end_elevation_m": 391.4779967219706, "min_gradient_pct": 1.959846065372517 }, { "window_m": 20.0, "max_gradient_pct": 20.798887228278886, "diagnostic": false, "flags": [ "canopy_or_structure" ], "start_distance_m": 86.0, "end_distance_m": 106.0, "start_elevation_m": 376.1682606567042, "end_elevation_m": 380.32803810236, "min_gradient_pct": 4.502149320808826 }, { "window_m": 25.0, "max_gradient_pct": 20.411920158401017, "diagnostic": false, "flags": [ "canopy_or_structure" ], "start_distance_m": 88.0, "end_distance_m": 113.0, "start_elevation_m": 376.5376585781405, "end_elevation_m": 381.64063861774076, "min_gradient_pct": 5.40188034015614 }, { "window_m": 50.0, "max_gradient_pct": 19.281625698974153, "diagnostic": false, "flags": [ "canopy_or_structure" ], "start_distance_m": 64.0, "end_distance_m": 114.0, "start_elevation_m": 372.17948206883887, "end_elevation_m": 381.82029491832594, "min_gradient_pct": 7.661835797665617 }, { "window_m": 100.0, "max_gradient_pct": 16.776754204379074, "diagnostic": false, "flags": [ "canopy_or_structure" ], "start_distance_m": 26.0, "end_distance_m": 126.0, "start_elevation_m": 367.16769139166706, "end_elevation_m": 383.94444559604614, "min_gradient_pct": 9.487676718747252 } ], "shape": { "ascent_concentration": 0.346, "concentration_window_frac": 0.25, "longest_pitch_10pct_m": 102.0, "shape_class": "sustained" }, "length_m": 374.99999999990615, "start_elevation_m": 363.4276941400308, "end_elevation_m": 410.327822436287, "endpoint_gain_m": 46.90012829625624, "overall_gradient_pct": 12.506700879004795, "accumulated_ascent_m": 46.93852959615083, "window_maxima": { "max_5m": { "gradient_pct": 23.84623707333617, "start_distance_m": 95.0, "end_distance_m": 100.0, "midpoint_distance_m": 97.5, "start_elevation_m": 377.980707422255, "end_elevation_m": 379.17301927592183, "start_xy": [ 944737.1371509854, 6277192.619279604 ], "end_xy": [ 944740.8657635656, 6277189.287996335 ] }, "max_10m": { "gradient_pct": 22.37158828997167, "start_distance_m": 178.0, "end_distance_m": 188.0, "midpoint_distance_m": 183.0, "start_elevation_m": 389.24083789297345, "end_elevation_m": 391.4779967219706, "start_xy": [ 944782.6799301833, 6277125.6748520145 ], "end_xy": [ 944786.5054478133, 6277116.583532447 ] }, "max_20m": { "gradient_pct": 20.798887228278886, "start_distance_m": 86.0, "end_distance_m": 106.0, "midpoint_distance_m": 96.0, "start_elevation_m": 376.1682606567042, "end_elevation_m": 380.32803810236, "start_xy": [ 944730.4256483408, 6277198.615589491 ], "end_xy": [ 944745.3400986621, 6277185.2904564105 ] }, "max_25m": { "gradient_pct": 20.411920158401017, "start_distance_m": 88.0, "end_distance_m": 113.0, "midpoint_distance_m": 100.5, "start_elevation_m": 376.5376585781405, "end_elevation_m": 381.64063861774076, "start_xy": [ 944731.9170933729, 6277197.283076183 ], "end_xy": [ 944750.5589669282, 6277180.62533061 ] }, "max_50m": { "gradient_pct": 19.281625698974153, "start_distance_m": 64.0, "end_distance_m": 114.0, "midpoint_distance_m": 89.0, "start_elevation_m": 372.17948206883887, "end_elevation_m": 381.82029491832594, "start_xy": [ 944713.4230120167, 6277212.499515626 ], "end_xy": [ 944751.3037030502, 6277179.957971555 ] }, "max_100m": { "gradient_pct": 16.776754204379074, "start_distance_m": 26.0, "end_distance_m": 126.0, "midpoint_distance_m": 76.0, "start_elevation_m": 367.16769139166706, "end_elevation_m": 383.94444559604614, "start_xy": [ 944676.5031860273, 6277221.371260669 ], "end_xy": [ 944760.2405365149, 6277171.949662893 ] } }, "window_minima": { "min_5m": { "gradient_pct": 0.192977621885575, "start_distance_m": 370.0, "end_distance_m": 375.0, "midpoint_distance_m": 372.5, "start_elevation_m": 410.31817355519274, "end_elevation_m": 410.327822436287, "start_xy": [ 944849.6033234886, 6276962.103331367 ], "end_xy": [ 944847.4783489556, 6276957.577352686 ] }, "min_10m": { "gradient_pct": 1.959846065372517, "start_distance_m": 365.0, "end_distance_m": 375.0, "midpoint_distance_m": 370.0, "start_elevation_m": 410.13183782974977, "end_elevation_m": 410.327822436287, "start_xy": [ 944851.7285957694, 6276966.629170265 ], "end_xy": [ 944847.4783489556, 6276957.577352686 ] }, "min_20m": { "gradient_pct": 4.502149320808826, "start_distance_m": 355.0, "end_distance_m": 375.0, "midpoint_distance_m": 365.0, "start_elevation_m": 409.42739257212526, "end_elevation_m": 410.327822436287, "start_xy": [ 944852.9241944263, 6276976.487510335 ], "end_xy": [ 944847.4783489556, 6276957.577352686 ] }, "min_25m": { "gradient_pct": 5.40188034015614, "start_distance_m": 350.0, "end_distance_m": 375.0, "midpoint_distance_m": 362.5, "start_elevation_m": 408.977352351248, "end_elevation_m": 410.327822436287, "start_xy": [ 944853.1389559319, 6276981.461715477 ], "end_xy": [ 944847.4783489556, 6276957.577352686 ] }, "min_50m": { "gradient_pct": 7.661835797665617, "start_distance_m": 325.0, "end_distance_m": 375.0, "midpoint_distance_m": 350.0, "start_elevation_m": 406.4969045374542, "end_elevation_m": 410.327822436287, "start_xy": [ 944848.0751858186, 6277005.94350937 ], "end_xy": [ 944847.4783489556, 6276957.577352686 ] }, "min_100m": { "gradient_pct": 9.487676718747252, "start_distance_m": 275.0, "end_distance_m": 375.0, "midpoint_distance_m": 325.0, "start_elevation_m": 400.84014571753977, "end_elevation_m": 410.327822436287, "start_xy": [ 944832.5864183325, 6277053.45328043 ], "end_xy": [ 944847.4783489556, 6276957.577352686 ] } }, "diagnostic_window_maxima": { "max_2m": { "gradient_pct": 25.64113256040912, "start_distance_m": 184.0, "end_distance_m": 186.0, "midpoint_distance_m": 185.0, "start_elevation_m": 390.5172618078692, "end_elevation_m": 391.0300844590774, "start_xy": [ 944785.294500681, 6277120.274479702 ], "end_xy": [ 944786.1660241802, 6277118.474355598 ] }, "max_3m": { "gradient_pct": 24.595386685471492, "start_distance_m": 183.0, "end_distance_m": 186.0, "midpoint_distance_m": 184.5, "start_elevation_m": 390.29222285851324, "end_elevation_m": 391.0300844590774, "start_xy": [ 944784.8587389314, 6277121.174541754 ], "end_xy": [ 944786.1660241802, 6277118.474355598 ] } }, "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": 0.013, "windows_resited": [ 2.0, 3.0, 5.0 ], "windows_unresolved": [], "minima_resited": [], "minima_unresolved": [] }, "overhead_obstruction": { "obstruction_threshold_m": 2.0, "obstructed_fraction": 0.285, "obstruction_max_height_m": 17.11, "flagged_windows_m": [ 5, 20, 25, 50, 100 ] }, "excluded_ranges_m": [ [ 0.0, 4.0 ] ], "review": [], "extent": [ "may_start_earlier" ] }, "provenance": { "analysis_version": "0.1.0", "run_manifest": { "manifest_version": "1", "code_git_sha": "41205ec4649bb0a4093af76ff34281a5d9a13832", "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-pr5", "road_pbf": "block-batch-fr-pr5.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:ba95a0bf562c86eb" }, "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_E944-N6276_0m5@22LHD6QQ-2025-03-24.tif", "data/cache/fr/ign-lidarhd_dtm_E944-N6277_0m5@22LHD6QQ-2025-03-24.tif" ], "calculated_at": "2026-09-25T09:02:52+00:00", "road_source": "OpenStreetMap (local PBF extract)", "road_attribution": "\u00a9 OpenStreetMap contributors, ODbL", "osm_pbf_path": "data/cache/pbf/block-batch-fr-pr5.osm.pbf", "osm_snapshot": "", "run_id": "fr-pr5", "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": [ "E944-N6276", "E944-N6277" ], "elevation_blocks": [ "22LHD6QQ@2025-03-24" ], "ign_dalles": [ "LHD_FXX_0944_6277_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0944_6278_MNT_O_0M50_LAMB93_IGN69" ], "ign_missions": [ "22LHD6QQ" ], "ign_editions": [ "2025-03-24" ], "ign_dsm_edition": { "LHD_FXX_0944_6277_MNT_O_0M50_LAMB93_IGN69": "2025-03-24", "LHD_FXX_0944_6278_MNT_O_0M50_LAMB93_IGN69": "2025-03-24" }, "route_summit_trim_m": 142.6, "route_summit_trim_loss_m": 10.7, "climb_origin": "discovered", "structure_own_ways": 2, "carriageway": { "stations": 22, "stations_resolved": 22, "width_median_m": 5.38, "width_p10_m": 2.77, "width_min_m": 1.75, "width_max_m": 9.75, "bounded_share": 0.182, "unbounded_share": 0.818, "confidence_median": 0.0, "width_median_bounded_m": 4.75, "window_m": [ 88.0, 113.0 ], "width_at_max25_m": 5.5, "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": 22, "stations_resolved": 22, "width_median_m": 2.25, "width_p10_m": 0.75, "width_min_m": 0.5, "width_max_m": 8.5, "bounded_share": 0.955, "unbounded_share": 0.045, "confidence_median": 1.0, "width_median_bounded_m": 2.25, "window_m": [ 88.0, 113.0 ], "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": "Pontev\u00e8s", "county": "Var", "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)" } }