An sf object of data from OpenStreetMap of large nonresidential areas in Maryland. There are several census tracts with very few households that coincide with industrial sites, prisons, and other nonresidential properties, and this is an attempt to identify some of them. It's not perfect, but should help with some mysteries of missing or weird data.
Format
An sf data frame with 514 rows and 5 variables:
- type
Factor. Site type: one of airport, industrial, military, prison, or protected area. These refer to the keys used to retrieve data from OSM, though some may have matched multiple keys (duplicates were removed).
- osm_id
Character. The OpenStreetMap ID for the site; can be uesd to retrieve more metadata.
- name
Character. The name of the site.
- geometry
POLYGON. The boundaries of the site.
- is_low_res
Logical. Gives whether the site intersects with a low-residential tract, defined as tracts with fewer than 500 households based on the 2022 ACS.
Source
OpenStreetMap database via the osmdata package, and American Community Survey 2022 5-year estimates via tidycensus.
Examples
head(nonres_sf)
#> Simple feature collection with 6 features and 4 fields
#> Geometry type: POLYGON
#> Dimension: XY
#> Bounding box: xmin: -78.76614 ymin: 38.99708 xmax: -76.24467 ymax: 39.60344
#> Geodetic CRS: NAD83
#> type osm_id name
#> 107498819 prison 107498819 Charles Hickey School
#> 13312534 prison 13312534 Federal Correctional Institution, Cumberland
#> 47010857 military 47010857 Naval Support Activity Bethesda
#> 54276982 military 54276982 Warfield Air National Guard Base
#> 114353119 military 114353119 Camp Fretterd
#> 154081911 military 154081911 Churchville Test Area
#> geometry is_low_res
#> 107498819 POLYGON ((-76.52874 39.4253... FALSE
#> 13312534 POLYGON ((-78.76103 39.5913... FALSE
#> 47010857 POLYGON ((-77.09705 39.0034... FALSE
#> 54276982 POLYGON ((-76.42237 39.3369... FALSE
#> 114353119 POLYGON ((-76.84984 39.5012... FALSE
#> 154081911 POLYGON ((-76.25945 39.5976... FALSE