Google Realtime 大眾運輸詞彙表
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本頁提供 Realtime 大眾運輸詞彙和定義的清單，讓大眾運輸合作夥伴和資料集結業者能在多個文件或使用者介面中，一致地使用這些字詞。
| 詞彙 |
| 車廂 |
用於載運乘客的一節列車。 |
| 實體 |
存在於真實世界的可識別物件，例如車輛、行程或停靠站。實體可由專屬 ID 識別，且每個實體類型都有一組描述類型的欄位。 |
| 標題 |
提供動態饋給中繼資料的記錄，例如版本和時間戳記。 |
| 訊息 |
包含特定實體資料的記錄。訊息會包含在動態饋給訊息中，且會提供動態饋給中實體的相關資訊。 |
| Realtime 動態饋給 |
符合 GTFS Realtime 格式的檔案，可提供大眾運輸服務的最新資訊，內容涵蓋行程更新、服務快訊或車輛位置 |
| 服務快訊 |
大眾運輸網路服務中斷時，用於為乘客提供最新資訊的快訊。 |
| 行程更新 |
個別行程誤點或取消的更新資訊。 |
| 車輛位置 |
特定車輛目前位置的相關資訊。 |
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上次更新時間：2025-07-25 (世界標準時間)。
[null,null,["上次更新時間：2025-07-25 (世界標準時間)。"],[[["\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. |"]]