get_gtfs_standards {gtfsio}

Generate GTFS standards

Description

Generates a list specifying the standards to be used when reading and writing GTFS feeds with R. Each list element (also a list) represents a distinct GTFS table, and describes:

• whether the table is required, optional or conditionally required;

• the fields that compose the table, including which R data type is best suited to represent it, whether the field is required, optional or conditionally required, and which values it can assume (most relevant to GTFS ENUMs.

Note: the standards list is based on the specification as revised in May 9th, 2022.

Usage

get_gtfs_standards()

Value

A named list, in which each element represents the R equivalent of each GTFS table standard.

Details

GTFS standards were derived from GTFS Schedule Reference. The R data types chosen to represent each GTFS data type are described below:

• Color = character

• Currency amount = numeric

• Currency code = character

• Date = integer

• Email = character

• ENUM = integer

• ID = character

• Integer = integer

• Language code = character

• Latitude = numeric

• Longitude = numeric

• Float = numeric

• Phone number = character

• Text = character

• Time = character

• Timezone = character

• URL = character

Examples

gtfs_standards <- get_gtfs_standards()