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Terminology

Sylvan edited this page Mar 6, 2017 · 1 revision

GTFS-ride follows the terminology of GTFS:

  • Required: The field column must be included in your feed, and a value must be provided for each record. Some required fields permit an empty string as a value. To enter an empty string, just omit any text between the commas for that field. Note that 0 is interpreted as "a string of value 0", and is not an empty string. Please see the field definition for details.
  • Optional: The field column may be omitted from your feed. If you choose to include an optional column, every record in your feed must have a value for that column. You can include an empty string as a value for records that do not have values for the column. Some optional fields permit an empty string as a value. To enter an empty string, just omit any text between the commas for that field. Note that 0 is interpreted as "a string of value 0", and is not an empty string.
  • "dataset unique": The field contains a value that maps to a single distinct entity within the column. For example, if a route is assigned the ID 1A and it is dataset unique, then no other route may use that route ID. However, you may assign the ID 1A to a location because locations are a different type of entity than routes (not in the same dataset).

List retrieved from: https://developers.google.com/transit/gtfs/reference/terminology

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