GET vehicles

Fields to include with the response. Multiple fields **MUST** be a comma-separated (U+002C COMMA, ",") list. Note that fields can also be selected for included data types: see the [V3 API Best Practices](https://www.mbta.com/developers/v3-api/best-practices) for an example.

Filter by direction of travel along the route. Must be used in conjuction with `filter[route]` to apply. The meaning of `direction_id` varies based on the route. You can programmatically get the direction names from `/routes` `/data/{index}/attributes/direction_names` or `/routes/{id}` `/data/attri...

Constraints: {'enum': ['0', '1']}

Filter by multiple IDs. Multiple IDs **MUST** be a comma-separated (U+002C COMMA, ",") list. Cannot be combined with any other filter.

Filter by label. Multiple `label` **MUST** be a comma-separated (U+002C COMMA, ",") list.

Filter vehicles by revenue status. Revenue status indicates whether or not the vehicle is accepting passengers. When filter is not included, the default behavior is to filter by `revenue=REVENUE`. Multiple `revenue` types **MUST** be a comma-separated (U+002C COMMA, ",") list.

Constraints: {'enum': ['NON_REVENUE', 'REVENUE', 'NON_REVENUE,REVENUE']}

Filter by route. If the vehicle is on a [multi-route trip](https://groups.google.com/forum/#!msg/massdotdevelopers/1egrhNjT9eA/iy6NFymcCgAJ), it will be returned for any of the routes. Multiple `route_id` **MUST** be a comma-separated (U+002C COMMA, ",") list.

Filter by route_type: https://gtfs.org/documentation/schedule/reference/#routestxt. Multiple `route_type` **MUST** be a comma-separated (U+002C COMMA, ",") list.

Constraints: {'enum': ['0', '1', '2', '3', '4']}

Filter by `/data/{index}/relationships/trip/data/id`. Multiple `/data/{index}/relationships/trip/data/id` **MUST** be a comma-separated (U+002C COMMA, ",") list. Cannot be combined with any other filter.

Relationships to include. * `trip` * `stop` * `route` The value of the include parameter **MUST** be a comma-separated (U+002C COMMA, ",") list of relationship paths. A relationship path is a dot-separated (U+002E FULL-STOP, ".") list of relationship names. [JSONAPI "include" behavior](http://json...

Max number of elements to return

Offset (0-based) of first element in the page

Results can be [sorted](http://jsonapi.org/format/#fetching-sorting) by the id or any `/data/{index}/attributes` key. Assumes ascending; may be prefixed with '-' for descending | JSON pointer | Direction | `sort` | |--------------|-----------|------------| | `/data/{index}/attributes/bearing` |...

Constraints: {'enum': ['bearing', '-bearing', 'carriages', '-carriages', 'current_status', '-current_status', 'current_stop_sequence', '-current_stop_sequence', 'direction_id', '-direction_id', 'label', '-label', 'latitude', '-latitude', 'longitude', '-longitude', 'occupancy_status', '-occupancy_status', 'revenue_status', '-revenue_status', 'speed', '-speed', 'updated_at', '-updated_at']}