![]() For details, see the Google Developers Site Policies. If you are working for a public transportation agency that is interested in providing realtime updates to Google Maps, please visit the Google Transit Partner Page.Įxcept as otherwise noted, the content of this page is licensed under the Creative Commons Attribution 4.0 License, and code samples are licensed under the Apache 2.0 License. Live Transit Updates is a feature within Google Maps that provides users with realtime transit information. To participate in discussions around GTFS Realtime and suggest changes and additions to the specification, join the GTFS Realtime mailing list. The libraries not only make feed creation easier but also ensure that only valid feeds are produced. These libraries provide the classes and functions needed for generating valid GTFS Realtime feeds. This text file is used to generate the necessary libraries in your choice of programming language. The hierarchy of elements and their type definitions are specified in the gtfs-realtime.proto file. The data structure is defined in a gtfs-realtime.proto file, which then is used to generate source code to easily read and write your structured data from and to a variety of data streams, using a variety of languages – e.g. Protocol buffers are a language- and platform-neutral mechanism for serializing structured data (think XML, but smaller, faster, and simpler). The GTFS Realtime data exchange format is based on Protocol Buffers There are no constraints on how frequently nor on the exact method of how the feed should be updated or retrieved.īecause GTFS Realtime allows you to present the actual status of your fleet, the feed needs to be updated regularly - preferably whenever new data comes in from your Automatic Vehicle Location system. ![]() Alternatively, web application servers could also be used which as a response to a valid HTTP GET request will return the feed. The file itself is a regular binary file, so any type of webserver can host and serve the file (other transfer protocols might be used as well). Feeds are served via HTTP and updated frequently. Vehicle positions - information about the vehicles including location and congestion levelĪ feed may, although not required to, combine entities of different types.Service alerts - stop moved, unforeseen events affecting a station, route or the entire network.Trip updates - delays, cancellations, changed routes.The specification currently supports the following types of information: ![]() Create your own feeds using the reference.Decide which feed entities you will be providing.The system immediately processes feed updates as Live Transit Updates information. Your feed needs to be available on a location where we can fetch it periodically. We created the GTFS realtime feed format to complement the widely-used GTFS format for static transit schedules. Transit partners provide these updates in their feeds. Live Transit Updates provide two types of real-time updates to users: live departure times and service alerts. These updates include live departure and arrival times to transit stations and service alerts. Live Transit Updates is a service providing real-time transit updates to users of Google Maps and Google Maps for mobile. What is Live Transit Updates for Google Maps? The specification is published under the Apache 2.0 License. The specification was designed through a partnership of the initial Live Transit Updates partner agencies, a number of transit developers and Google. GTFS Realtime was designed around ease of implementation, good GTFS interoperability and a focus on passenger information. It is an extension to GTFS (General Transit Feed Specification), an open data format for public transportation schedules and associated geographic information. ![]() GTFS Realtime is a feed specification that allows public transportation agencies to provide realtime updates about their fleet to application developers. As a result, in case of an unfortunate delay, a rider would be relieved to know that they can stay home a little bit longer. Providing up-to-date information about current arrival and departure times allows users to smoothly plan their trips. ![]() Providing users transit data updates in real time greatly enhances their experience of your transit services. GTFS Realtime Best Practices on the Mobility Data site. Note: To see a detailed list of recommended practicesįor feeds about realtime public transportation information, refer to the ![]()
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