Generic function to get regional data from the PCT

This function gets data generated for the Propensity to Cycle Tool project and returns objects in the modern sf class.

get_pct(
  base_url = "https://github.com/npct/pct-outputs-regional-notR/raw/master",
  purpose = "commute",
  geography = "lsoa",
  region = NULL,
  layer = NULL,
  extension = ".geojson",
  national = FALSE
)

Arguments

base_url: Where the data is stored.
purpose: Trip purpose (typically school or commute)
geography: Geographic resolution of outputs, msoa or lsoa (the default)
region: The PCT region or local authority to download data from (e.g. west-yorkshire or Leeds). See View(pct_regions_lookup) for a full list of possible region names.
layer: The PCT layer of interest, z, c, l, rf, rq or rnet for zones, centroids, desire lines, routes (fast or quiet) and route networks, respectively
extension: The type of file to download (only .geojson supported at present)
national: Download nationwide data? FALSE by default

Examples

if (FALSE) {
rf = get_pct(region = "isle-of-wight", layer = "rf")
names(rf)[1:20]
vars_to_plot = 10:13
plot(rf[vars_to_plot])
z = get_pct(region = "isle-of-wight", layer = "z")
rf = get_pct(region = "west-yorkshire", layer = "rf")
z_all = get_pct(layer = "z", national = TRUE)
}