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General Transit Feed Specification : ウィキペディア英語版
General Transit Feed Specification
The General Transit Feed Specification (GTFS) defines a common format for public transportation schedules and associated geographic information.
GTFS, first conceived by Bibiana McHugh, an IT Manager at the TriMet transit agency in the Portland metropolitan area (Oregon) was developed by Google and Portland TriMet, and originally known as the Google Transit Feed Specification.〔(proposal: remove "Google" from the name of GTFS )〕
A GTFS feed is a collection of CSV files (with extension .txt) contained within a .zip file. Together, the related CSV tables describe a transit system's scheduled operations. The specification is designed to be sufficient to provide trip planning functionality, but is also useful for other applications such as analysis of service levels and some general performance measures. GTFS only includes scheduled operations, and does not include real-time information. However real-time information can be related to GTFS schedules according to the related GTFS-realtime specification().
==Structure==
Following are descriptions of the tables required for a valid GTFS data feed. Each table is literally a text CSV file whose filename is the name of the table, suffixed by '.txt'. So for the 'agency' table below, a CSV file called 'agency.txt' would be included in a valid GTFS feed.

抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
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