Probe 22 points with the USGS 3DEP point service: walkable surfaces span 115.65-119.59 m, a 3.94 m relief, so elevation data is required by the AGENTS rule. Grade falls ~3.3 m eastward over the 279 m block (1.2%) and the north sidewalk sits 0.4-0.7 m above the south. 3DEP 1 m is public domain and becomes the chosen source; the tile itself is still to be downloaded. Factored the shared OSM helpers into Geo/scripts/osm_common.py so the street profile and the elevation probe read the same geometry.
197 lines
4.6 KiB
JSON
197 lines
4.6 KiB
JSON
{
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"service": "https://epqs.nationalmap.gov/v1/json",
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"processed_utc": "2026-11-06T21:42:50+00:00",
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"source_dem": "USGS 3DEP seamless 1 m (CONUS)",
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"vertical_datum": "NAVD88 orthometric (3DEP CONUS)",
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"query": {
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"blvd": "Hollywood Boulevard",
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"west": "North Orange Drive",
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"east": "North Highland Avenue",
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"hero_way": 424024147,
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"block_len_m": 279.37
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},
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"summary": {
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"min_m": 115.646949768,
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"max_m": 119.585700989,
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"relief_m": 3.939,
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"samples": 22
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},
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"samples": [
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{
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"lat": 34.1014287,
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"lon": -118.341748,
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"elevation_m": 118.901107788,
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"raster_id": 129943,
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"resolution_m": 1,
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"label": "s= 0.0 m south sidewalk"
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},
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{
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"lat": 34.1015419,
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"lon": -118.3417487,
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"elevation_m": 119.361953735,
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"raster_id": 129943,
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"resolution_m": 1,
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"label": "s= 0.0 m centreline"
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},
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{
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"lat": 34.1016641,
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"lon": -118.3417495,
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"elevation_m": 119.585700989,
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"raster_id": 129943,
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"resolution_m": 1,
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"label": "s= 0.0 m north sidewalk"
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},
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{
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"lat": 34.1014304,
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"lon": -118.3409914,
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"elevation_m": 118.110488892,
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"raster_id": 129943,
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"resolution_m": 1,
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"label": "s= 69.8 m south sidewalk"
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},
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{
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"lat": 34.1015435,
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"lon": -118.340991,
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"elevation_m": 118.458061218,
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"raster_id": 129943,
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"resolution_m": 1,
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"label": "s= 69.8 m centreline"
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},
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{
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"lat": 34.1016657,
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"lon": -118.3409906,
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"elevation_m": 118.491287231,
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"raster_id": 129943,
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"resolution_m": 1,
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"label": "s= 69.8 m north sidewalk"
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},
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{
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"lat": 34.1014291,
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"lon": -118.340233,
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"elevation_m": 116.954948425,
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"raster_id": 129943,
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"resolution_m": 1,
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"label": "s=139.7 m south sidewalk"
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},
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{
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"lat": 34.1015423,
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"lon": -118.3402333,
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"elevation_m": 117.407516479,
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"raster_id": 129943,
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"resolution_m": 1,
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"label": "s=139.7 m centreline"
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},
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{
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"lat": 34.1016645,
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"lon": -118.3402336,
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"elevation_m": 117.497383118,
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"raster_id": 129943,
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"resolution_m": 1,
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"label": "s=139.7 m north sidewalk"
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},
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{
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"lat": 34.1014306,
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"lon": -118.3394753,
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"elevation_m": 116.039543152,
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"raster_id": 129943,
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"resolution_m": 1,
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"label": "s=209.5 m south sidewalk"
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},
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{
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"lat": 34.1015438,
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"lon": -118.3394756,
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"elevation_m": 116.266822815,
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"raster_id": 129943,
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"resolution_m": 1,
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"label": "s=209.5 m centreline"
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},
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{
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"lat": 34.101666,
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"lon": -118.339476,
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"elevation_m": 116.471313477,
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"raster_id": 129943,
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"resolution_m": 1,
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"label": "s=209.5 m north sidewalk"
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},
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{
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"lat": 34.101432,
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"lon": -118.3387176,
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"elevation_m": 115.646949768,
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"raster_id": 129943,
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"resolution_m": 1,
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"label": "s=279.4 m south sidewalk"
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},
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{
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"lat": 34.1015452,
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"lon": -118.3387179,
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"elevation_m": 115.911499023,
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"raster_id": 129943,
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"resolution_m": 1,
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"label": "s=279.4 m centreline"
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},
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{
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"lat": 34.1016674,
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"lon": -118.3387183,
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"elevation_m": 116.096321106,
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"raster_id": 129943,
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"resolution_m": 1,
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"label": "s=279.4 m north sidewalk"
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},
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{
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"lat": 34.1009186,
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"lon": -118.3402987,
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"elevation_m": 114.977104187,
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"raster_id": 129943,
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"resolution_m": 1,
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"label": "hero near NW"
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},
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{
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"lat": 34.1009186,
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"lon": -118.3400194,
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"elevation_m": 114.528839111,
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"raster_id": 129943,
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"resolution_m": 1,
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"label": "hero near NE"
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},
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{
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"lat": 34.1014116,
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"lon": -118.3402987,
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"elevation_m": 117.13494873,
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"raster_id": 129943,
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"resolution_m": 1,
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"label": "hero far SW"
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},
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{
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"lat": 34.1014116,
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"lon": -118.3400194,
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"elevation_m": 116.738006592,
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"raster_id": 129943,
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"resolution_m": 1,
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"label": "hero far SE"
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},
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{
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"lat": 34.1015404,
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"lon": -118.3413518,
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"elevation_m": 118.956344604,
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"raster_id": 129943,
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"resolution_m": 1,
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"label": "crossing way 385648318 at s=37 m"
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},
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{
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"lat": 34.1015485,
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"lon": -118.3403371,
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"elevation_m": 117.53289032,
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"raster_id": 129943,
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"resolution_m": 1,
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"label": "crossing way 385648319 at s=130 m"
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},
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{
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"lat": 34.1015482,
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"lon": -118.3388618,
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"elevation_m": 115.954216003,
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"raster_id": 129943,
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"resolution_m": 1,
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"label": "crossing way 385648320 at s=266 m"
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}
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]
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} |