Google 实时公交术语表
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本页面列出了实时公交术语和定义,旨在帮助公交合作伙伴和数据聚合商在多个文档或界面中一致使用这些术语。
条款 |
车厢号 |
火车上专门用于载客的车厢。 |
实体 |
可区分的对象,表示真实存在的对象,例如车辆、行程或经停点。实体可通过唯一 ID 进行标识,并且每种实体类型都有一组用于描述它的字段。 |
标题 |
用于提供 Feed 元数据(例如其版本和时间戳)的记录。 |
消息 |
包含特定实体相关数据的记录。消息包含在 Feed 消息中,用于提供 Feed 中实体的信息。 |
实时 Feed |
一个符合 GTFS 实时格式的文件,用于提供有关公交服务的最新信息。文件内容涵盖行程更新、服务提醒或车辆位置 |
服务提醒 |
当公交网络出现中断时,向乘客提供最新动态的提醒。 |
行程动态 |
有关个别行程延误或取消的最新动态。 |
车辆位置 |
有关特定车辆当前位置的信息。 |
如未另行说明,那么本页面中的内容已根据知识共享署名 4.0 许可获得了许可,并且代码示例已根据 Apache 2.0 许可获得了许可。有关详情,请参阅 Google 开发者网站政策。Java 是 Oracle 和/或其关联公司的注册商标。
最后更新时间 (UTC):2025-07-25。
[null,null,["最后更新时间 (UTC):2025-07-25。"],[[["\u003cp\u003eThis glossary defines common Realtime Transit terms for data consistency across platforms and documents.\u003c/p\u003e\n"],["\u003cp\u003eUnderstanding these terms helps transit partners and data aggregators correctly interpret and utilize realtime transit data.\u003c/p\u003e\n"],["\u003cp\u003eDefinitions cover key concepts like Entities (vehicles, trips, stops), Realtime Feeds, Service Alerts, and Trip Updates.\u003c/p\u003e\n"]]],["The document defines terms used in realtime transit data. Key terms include \"Carriage\" (a train section), \"Entity\" (a real-world object like a vehicle), \"Header\" (feed metadata), and \"Message\" (data about an entity). \"Realtime feed\" is a file with current transit information, covering \"Service alerts\" (disruptions), \"Trip updates\" (delays/cancellations), and \"Vehicle positions\" (vehicle locations). The goal is to have a consistent terminology across various documents.\n"],null,["# Glossary of Google Realtime Transit terminology\n\nThis page provides a list of realtime transit terms and definitions to help transit partners and\ndata aggregators use the terms consistently across multiple documents or user interfaces.\n\n| Terms ||\n|-------------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|\n| Carriage | A separate section of a train that carries passengers. |\n| Entity | A distinguishable object that represents a real-world existence, such as a vehicle, trip, or stop. Entities are identifiable with a unique ID, and each entity type has a set of fields that describe it. |\n| Header | A record that provides metadata about a feed, such as its version and timestamp. |\n| Message | A record that contains data about a particular entity. Messages are included in feed messages, and they provide information about the entities in the feed. |\n| Realtime feed | A file that complies with the GTFS-realtime format and provides current information about the transit service. The file's contents cover trip updates, service alerts, or vehicle positions |\n| Service alerts | Alerts that provide passengers with updates when there's a disruption on the transit network. |\n| Trip updates | Updates about the delays or cancellations of individual trips. |\n| Vehicle positions | Information about the current location of a particular vehicle. |"]]