Feed 可以（但并非必须）组合不同类型的实体。Feed 通过 HTTP 提供，并且会经常更新。该文件本身就是一个常规二进制文件，因此任何类型的 Web 服务器都可以托管和传送该文件（也可以使用其他传输协议）。或者，您也可以使用 Web 应用服务器，以便在响应有效的 HTTP GET 请求时返回 Feed。对 Feed 的更新或检索频率和确切方法没有任何限制。
[[["易于理解","easyToUnderstand","thumb-up"],["解决了我的问题","solvedMyProblem","thumb-up"],["其他","otherUp","thumb-up"]],[["没有我需要的信息","missingTheInformationINeed","thumb-down"],["太复杂/步骤太多","tooComplicatedTooManySteps","thumb-down"],["内容需要更新","outOfDate","thumb-down"],["翻译问题","translationIssue","thumb-down"],["示例/代码问题","samplesCodeIssue","thumb-down"],["其他","otherDown","thumb-down"]],["最后更新时间 (UTC)：2024-12-06。"],[[["GTFS Realtime allows public transportation agencies to provide real-time updates, like delays and vehicle positions, to applications, enhancing the rider experience."],["The data is provided in a feed based on Protocol Buffers, allowing for efficient and flexible data exchange."],["Live Transit Updates within Google Maps uses GTFS Realtime feeds to give users access to real-time departure times and service alerts."],["Transit agencies can create their own feeds using the provided specification and examples to integrate their data with applications like Google Maps."],["The GTFS Realtime specification was designed with ease of implementation in mind and focuses on providing accurate passenger information."]]],["GTFS Realtime provides transit agencies a method to share live updates with app developers, enhancing user experience with real-time arrival/departure times and service alerts. Key information types include trip updates (delays, cancellations), service alerts (station issues), and vehicle positions. Agencies can start by defining feed entities, reviewing examples, creating feeds using provided references, and publishing the feed. Feeds use Protocol Buffers, a structured data format, and are updated regularly via HTTP. Agencies interested in Google Maps integration can visit the Google Transit Partner Page.\n"]]
