Skip to content

Latest commit

 

History

History
27 lines (21 loc) · 1.03 KB

README.md

File metadata and controls

27 lines (21 loc) · 1.03 KB
Raw

Boundaries

This repo uses premade lookup tables to generate boundary data files used by Active Travel England. See the .qmd files for reproducible source code.

Regenerate the boundary files using the following code:

lad_to_lta_lookup = readr::read_csv("./local_authority_district_to_local_transport_authority_lookup.csv")
local_authority_geometries = sf::read_sf("https://services1.arcgis.com/ESMARspQHYMw9BZ9/arcgis/rest/services/Local_Authority_Districts_May_2023_UK_BUC_V2/FeatureServer/0/query?outFields=*&where=1%3D1&f=geojson")
local_authority_geometries_joined = dplyr::left_join(local_authority_geometries, lad_to_lta_lookup)
ltas = local_authority_geometries_joined |>
  dplyr::group_by(LTA23NM) |>
  dplyr::summarise(local_authority_names = paste0(LAD23NM, collapse = ", ")) |>
  dplyr::filter(LTA23NM != "") 
plot(ltas$geometry)

sf::write_sf(ltas, "./transport_authorities.geojson", delete_dsn = TRUE)
fs::file_size("./transport_authorities.geojson")
399K