gtfsio offers tools for the development of
GTFS-related packages. It establishes a standard for representing GTFS
feeds using R data types based on the GTFS Schedule
Reference. It provides fast and flexible functions to read and write
GTFS feeds while sticking to this standard. It defines a basic
gtfs class which is meant to be extended by packages that
depend on it. And it also offers utility functions that support checking
the structure of GTFS objects.
Stable version:
install.packages("gtfsio")Development version:
install.packages("gtfsio", repos = "https://r-transit.r-universe.dev")
# or
# install.packages("remotes")
remotes::install_github("r-transit/gtfsio")GTFS feeds are read using the import_gtfs()
function:
library(gtfsio)
path <- system.file("extdata/ggl_gtfs.zip", package = "gtfsio")
gtfs <- import_gtfs(path)
names(gtfs)
#> [1] "calendar_dates" "fare_attributes" "fare_rules" "feed_info"
#> [5] "frequencies" "levels" "pathways" "routes"
#> [9] "shapes" "stop_times" "stops" "transfers"
#> [13] "translations" "trips" "agency" "attributions"
#> [17] "calendar"import_gtfs() returns a gtfs object which
is a list of a tables. The gtfs class might be extended by
other packages using the constructor, validator and methods provided by
gtfsio:
class(gtfs)
#> [1] "gtfs" "list"Use export_gtfs()
to write GTFS objects to disk:
tmpf <- tempfile(fileext = ".zip")
export_gtfs(gtfs, tmpf)
zip::zip_list(tmpf)$filename
#> [1] "calendar_dates.txt" "fare_attributes.txt" "fare_rules.txt"
#> [4] "feed_info.txt" "frequencies.txt" "levels.txt"
#> [7] "pathways.txt" "routes.txt" "shapes.txt"
#> [10] "stop_times.txt" "stops.txt" "transfers.txt"
#> [13] "translations.txt" "trips.txt" "agency.txt"
#> [16] "attributions.txt" "calendar.txt"For a more complete demonstration please read the introductory vignette.