Get data on parking availability and building volumes to estimate time penalties for automobile travel.

Get data on parking availability and building volumes to estimate time penalties for automobile travel.

Usage

m4ra_parking(
  bb,
  city_name,
  mode = "motorcar",
  planet_file = NULL,
  dlim = 5000,
  k = 1000,
  quiet = FALSE
)

Arguments

bb

Bounding box of city for query to extract parking data.

city_name

Name of city used to name cached files.

mode

Mode of transport used to extract OSM node IDs at which to estimate relative parking availability (should generally be "motorcar").

planet_file

Optional file path to local .osm.pbf or .osm.bz2 file encompassing specified bounding box. If given, data are extracted with system-level calls to "osmium", which must be installed.

dlim

Distance limit in metres out to which contributions of parking and buildings will be aggregated.

k

With of exponential function used to weight contributions with distance, exp(-d / k) for distance d. Default value of 1000 metres decreases weight to 37% at 1km, 14% at 2km, and 0.6% at 5km.

quiet

If FALSE, display progress information on screen.

Value

A data.frame of the vertices of the (contracted) network, with additional columns quantifying number of parking spaces associated with each vertex, as well as the total volume of all surrounding buildings.

See also

Other prep: m4ra_prepare_data(), m4ra_times_to_gtfs_stops()