GTFS Realtime - Trip Updates - Yarra Trams
GTFS Realtime Yarra Trams Trip Update data feed provides real time arrival, departure and delay information of a trip for tram services in Melbourne, Victoria. Note: This API endpoint has a rate limit of 20-27 calls per minute (depending on the data size) and caching time of 30 seconds. To obtain an 'API Key' please continue to signup using our Data Exchange Platform (https://data-exchange.vicroads.vic.gov.au/).
Source
This data file or API can be downloaded from:
https://opendata.transport.vic.gov.au/dataset/2d9a7228-5b81-40d3-8075-ae7a3da42198/resource/642f7aa8-5d6d-40be-b12c-28dfe90b9cad/download/gtfsr_yarra_trams_trip_updates.openapi.jsonResources
There are no views created for this resource yet.
Additional Information
| Field | Value |
|---|---|
| Data last updated | May 30, 2025 |
| Metadata last updated | June 5, 2025 |
| Format | JSON |
| License | Creative Commons Attribution 3.0 Australia |
| Api url | https://data-exchange-api.vicroads.vic.gov.au/opendata/gtfsr/v1/tram/tripupdates |
| Attributes | [{"attribute_display_order_id": 1, "db_format": "FeedHeader()", "db_name": "header", "definition": "Metadata about a feed, included in feed messages.", "fixed_values": "", "id": "1312", "name": "Feed Header", "ref_number": "AT-1312"}, {"attribute_display_order_id": 2, "db_format": "FeedEntity()", "db_name": "entity", "definition": "A definition (or update) of an entity in the transit feed. If the entity is not being deleted, exactly one of trip_update, vehicle, and alert fields should be populated. This field can be repeated as many times as needed.", "fixed_values": "", "id": "1313", "name": "Feed Entity", "ref_number": "AT-1313"}, {"attribute_display_order_id": 3, "db_format": "STRING()", "db_name": "header.gtfs_realtime_version", "definition": "Version of the feed specification. The current version is 2.0.", "fixed_values": "", "id": "1314", "name": "GTFS Realtime Version", "ref_number": "AT-1314"}, {"attribute_display_order_id": 4, "db_format": "ENUM()", "db_name": "header.incrementality", "definition": "<p>Determines whether the current fetch is incremental. Options include:</p>\n<p>-FULL_DATASET: this feed update will overwrite all preceding realtime information for the feed. Thus this update is expected to provide a full snapshot of all known realtime information.</p>\n<p>-DIFFERENTIAL: currently, this mode is unsupported and behavior is unspecified for feeds that use this mode. There are discussions on the GTFS Realtime mailing list around fully specifying the behavior of DIFFERENTIAL mode and the documentation will be updated when those discussions are finalized.</p>", "fixed_values": "FULL_DATASET, DIFFERENTIAL", "id": "1315", "name": "Incrementality", "ref_number": "AT-1315"}, {"attribute_display_order_id": 5, "db_format": "int64()", "db_name": "header.timestamp", "definition": "This timestamp identifies the moment when the content of this feed has been created (in server time). In POSIX time (i.e., number of seconds since January 1st 1970 00:00:00 UTC). To avoid time skew between systems producing and consuming realtime information it is strongly advised to derive timestamp from a time server. It is completely acceptable to use Stratum 3 or even lower strata servers since time differences up to a couple of seconds are tolerable.", "fixed_values": "", "id": "1316", "name": "Feed Header Timestamp", "ref_number": "AT-1316"}, {"attribute_display_order_id": 6, "db_format": "STRING()", "db_name": "entity.id", "definition": "Feed-unique identifier for this entity. The ids are used only to provide incrementality support. The actual entities referenced by the feed must be specified by explicit selectors (see EntitySelector below for more info).", "fixed_values": "", "id": "1317", "name": "Feed Entity ID", "ref_number": "AT-1317"}, {"attribute_display_order_id": 7, "db_format": "BOOLEAN()", "db_name": "entity.is_deleted", "definition": "Whether this entity is to be deleted. Should be provided only for feeds with Incrementality of DIFFERENTIAL - this field should NOT be provided for feeds with Incrementality of FULL_DATASET.", "fixed_values": "", "id": "1318", "name": "Feed Entity Is Deleted", "ref_number": "AT-1318"}, {"attribute_display_order_id": 8, "db_format": "TripUpdate()", "db_name": "entity.trip_update", "definition": "Data about the realtime departure delays of a trip. At least one of the fields trip_update, vehicle, or alert must be provided - all these fields cannot be empty.", "fixed_values": "", "id": "1319", "name": "Feed Entity Trip Update", "ref_number": "AT-1319"}, {"attribute_display_order_id": 9, "db_format": "TripDescriptor()", "db_name": "trip_update.trip", "definition": "The Trip that this message applies to. There can be at most one TripUpdate entity for each actual trip instance. If there is none, that means there is no prediction information available. It does not mean that the trip is progressing according to schedule.", "fixed_values": "", "id": "1320", "name": "Trip Update Trip", "ref_number": "AT-1320"}, {"attribute_display_order_id": 10, "db_format": "VehicleDescriptor()", "db_name": "trip_update.vehicle", "definition": "Additional information on the vehicle that is serving this trip.", "fixed_values": "", "id": "1327", "name": "Trip Update Vehicle", "ref_number": "AT-1327"}, {"attribute_display_order_id": 11, "db_format": "StopTimeUpdate()", "db_name": "trip_update.stop_time_update", "definition": "Updates to StopTimes for the trip (both future, i.e., predictions, and in some cases, past ones, i.e., those that already happened). The updates must be sorted by stop_sequence, and apply for all the following stops of the trip up to the next specified stop_time_update. At least one stop_time_update must be provided for the trip unless the trip.schedule_relationship is CANCELED - if the trip is canceled, no stop_time_updates need to be provided. This field can be repeated as many times as needed.", "fixed_values": "", "id": "1331", "name": "Stop Time Update", "ref_number": "AT-1331"}, {"attribute_display_order_id": 13, "db_format": "STRING()", "db_name": "trip_update.trip.trip_id", "definition": "<p>The trip_id from the GTFS feed that this selector refers to. Whether trip_id is required depends on the type of trip:</p>\n<p>- Non-frequency-based trips: The trip_id field alone is enough to uniquely identify these trips. Note that non-frequency-based trips aren't defined in GTFS frequencies.txt.</p>\n<p>- Frequency-based trips: The trip_id, start_time, and start_date fields are all required. Frequency-based trips are defined in GTFS frequencies.txt.</p>\n<p>- Schedule-based trips: The trip_id field can be omitted only if the trip can be uniquely identified by a combination of the provided route_id, direction_id, start_time, and start_date fields. Note that scheduled-based trips aren't defined in GTFS frequencies.txt.</p>", "fixed_values": "", "id": "1321", "name": "Trip Update Trip ID", "ref_number": "AT-1321"}, {"attribute_display_order_id": 14, "db_format": "STRING()", "db_name": "trip_update.trip.route_id", "definition": "The route_id from the GTFS feed that this selector refers to. If trip_id is omitted, then route_id, direction_id, start_time, and schedule_relationship=SCHEDULED must all be set to identify a trip instance.", "fixed_values": "", "id": "1322", "name": "Trip Update Trip Route ID", "ref_number": "AT-1322"}, {"attribute_display_order_id": 15, "db_format": "STRING()", "db_name": "trip_update.trip.start_time", "definition": "<p>The initially scheduled start time of this trip instance. The field type Time defines the format of this field, for example 11:15:35 or 25:15:35. Whether the start_time field is required depends on the type of trip:</p>\n<p>\u2022 The trip_id corresponds to a non-frequency-based trip: The start_time field needs to either be omitted or be equal to the value of departure_time in the GTFS feed's stop_times.txt file.</p>\n<p>\u2022 The trip_id corresponds to a frequency-based trip: start_time is always required and must be specified for trip updates and vehicle positions. Frequency-based trips are defined in GTFS frequencies.txt.</p>\n<p>\u25e6 If the frequency-based trip corresponds to an exact_times=1 GTFS record: The start_time field must be some multiple, including zero, of headway_secs later than the frequencies.txt start_time for the corresponding time period.</p>\n<p>\u25e6 If the frequency-based trip corresponds to an exact_times=0 GTFS record: The start_time can be arbitrary, and it's initially expected to be the first departure of the trip. After it's established, the start_time of this frequency-based exact_times=0 trip is considered immutable, even if the first departure time changes. Any subsequent time changes can instead be reflected in a StopTimeUpdate message.</p>\n<p>\u2022 The trip_id is omitted: start_time must be provided.</p>", "fixed_values": "", "id": "1324", "name": "Trip Update Trip Start Time", "ref_number": "AT-1324"}, {"attribute_display_order_id": 16, "db_format": "STRING()", "db_name": "trip_update.trip.start_date", "definition": "<p>The start date of this trip instance in YYYYMMDD format. Whether start_date is required depends on the type of trip:</p>\n<p>- Scheduled trips: start_date must be provided. This is to disambiguate trips that are so late that they collide with a scheduled trip on the next day. For example, suppose a train departs at 8:00 and 20:00 every day. If the train is 12 hours late, then there would be two distinct trips scheduled for the same time.</p>\n<p>Note: This field is optional for scheduled trips in which such collisions are impossible. For example, this could happen if a service runs on an hourly schedule, and a vehicle that's one hour late isn't considered related to the schedule anymore.</p>\n<p>- Frequency-based trips: start_date must be provided. Note that frequency-based trips are defined in the GTFS frequencies.txt file, while scheduled trips aren't.</p>\n<p>- trip_id is omitted: start_date must be provided.</p>", "fixed_values": "", "id": "1325", "name": "Trip Update Trip Start Date", "ref_number": "AT-1325"}, {"attribute_display_order_id": 17, "db_format": "STRING()", "db_name": "trip_update.vehicle.id", "definition": "Internal system identification of the vehicle. Should be unique per vehicle, and is used for tracking the vehicle as it proceeds through the system. This id should not be made visible to the end-user; for that purpose use the label field.", "fixed_values": "", "id": "1328", "name": "Trip Update Vehicle ID", "ref_number": "AT-1328"}, {"attribute_display_order_id": 18, "db_format": "int32()", "db_name": "stop_time_update.arrival.delay", "definition": "The delay field (in seconds) can be positive (meaning that the vehicle is late) or negative (meaning that the vehicle is ahead of schedule). A delay of 0 means that the vehicle is exactly on time. Either delay or time must be provided within a StopTimeEvent - both fields cannot be empty.", "fixed_values": "", "id": "1339", "name": "Departure Delay", "ref_number": "AT-1339"}, {"attribute_display_order_id": 18, "db_format": "int32()", "db_name": "trip_update.delay", "definition": "<p>The current schedule deviation for the trip. The delay should only be specified when the prediction is given relative to some existing schedule in GTFS.</p>\n<p>The delay (in seconds) can be positive (meaning that the vehicle is late) or negative (meaning that the vehicle is ahead of schedule). A delay of 0 means that the vehicle is exactly on time.</p>\n<p>Delay information in StopTimeUpdates take precedent of trip-level delay information, such that trip-level delay is only propagated until the next stop along the trip with a StopTimeUpdate delay value specified.</p>\n<p>Feed providers are strongly encouraged to provide a TripUpdate.timestamp value indicating when the delay value was last updated, in order to evaluate the freshness of the data.</p>\n<p>Caution: this field is still experimental, and subject to change. It may be formally adopted in the future.</p>", "fixed_values": "", "id": "1344", "name": "Delay", "ref_number": "AT-1344"}, {"attribute_display_order_id": 19, "db_format": "int64()", "db_name": "stop_time_update.arrival.time", "definition": "Event as absolute time. In POSIX time (i.e., number of seconds since January 1st 1970 00:00:00 UTC). Either delay or time must be provided within a StopTimeEvent - both fields cannot be empty.", "fixed_values": "", "id": "1340", "name": "Departure Time", "ref_number": "AT-1340"}, {"attribute_display_order_id": 20, "db_format": "UINT32()", "db_name": "stop_time_update.stop_sequence", "definition": "Must be the same as in stop_times.txt in the corresponding GTFS feed. Either stop_sequence or stop_id must be provided within a StopTimeUpdate - both fields cannot be empty. stop_sequence is required for trips that visit the same stop_id more than once (e.g., a loop) to disambiguate which stop the prediction is for.", "fixed_values": "", "id": "1332", "name": "Stop Sequence", "ref_number": "AT-1332"}, {"attribute_display_order_id": 21, "db_format": "STRING()", "db_name": "stop_time_update.stop_id", "definition": "Must be the same as in stops.txt in the corresponding GTFS feed. Either stop_sequence or stop_id must be provided within a StopTimeUpdate - both fields cannot be empty.", "fixed_values": "", "id": "1333", "name": "Stop ID", "ref_number": "AT-1333"}, {"attribute_display_order_id": 22, "db_format": "StopTimeEvent()", "db_name": "stop_time_update.arrival", "definition": "If schedule_relationship is empty or SCHEDULED, either arrival or departure must be provided within a StopTimeUpdate - both fields cannot be empty. arrival and departure may both be empty when schedule_relationship is SKIPPED. If schedule_relationship is NO_DATA, arrival and departure must be empty.", "fixed_values": "", "id": "1334", "name": "Arrival", "ref_number": "AT-1334"}, {"attribute_display_order_id": 23, "db_format": "StopTimeEvent()", "db_name": "stop_time_update.departure", "definition": "If schedule_relationship is empty or SCHEDULED, either arrival or departure must be provided within a StopTimeUpdate - both fields cannot be empty. arrival and departure may both be empty when schedule_relationship is SKIPPED. If schedule_relationship is NO_DATA, arrival and departure must be empty.", "fixed_values": "", "id": "1338", "name": "Departure", "ref_number": "AT-1338"}] |
| Datastore active | False |
| Datastore contains all records of source file | False |
| Edc sync | True |
| Filesize | 2,279 |
| Has views | False |
| Historical | False |
| Id | 642f7aa8-5d6d-40be-b12c-28dfe90b9cad |
| Last updated date | 7 months ago |
| Mimetype | application/json |
| Open dataset title | GTFS Realtime - Trip Updates - Yarra Trams |
| Package id | 53d596e8-7d96-4ef9-85ec-870ace4442fe |
| Position | 0 |
| Publication date | 2 years ago |
| State | active |
| Zip extract | False |
| Size | Unknown |
| ID | 642f7aa8-5d6d-40be-b12c-28dfe90b9cad |
| Harvested | True |
| Package ID | 53d596e8-7d96-4ef9-85ec-870ace4442fe |
| State | active |