Object representing a particular part of the system affected by an alert
| Name | Type | Description | Notes |
|---|---|---|---|
| trip | str | Unique id of a trip | [optional] |
| stop | str | Unique id of a stop | [optional] |
| route_type | int | Value | |
| route | str | Unique id of a route | [optional] |
| facility | str | Unique id of a facility | [optional] |
| direction_id | int | Direction in which trip is traveling: `0` or `1`. 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/attributes/direction_names`. | [optional] |
| activities | list[str] | Activities affected by this alert. If an entity is a station platform, and the alert only impacts those boarding at that platform and no one else, and the activity `"BOARD"` represents customers boarding at the informed entity, then the entity includes `activities` `["BOARD"]`. If the alert affected customers exiting at the platform too, then `activities` is `["BOARD", "EXIT"]`. It should be noted that the `activities` array includes activities that are specifically affected. Thus if there were activities `"BOARD"`, `"EXIT"`, and `"USING_WHEELCHAIR"` [to board or exit], and a station were closed, then the `activities` array would include `"BOARD"` and `"EXIT"` but it would not be necessary to include the activity `"USING_WHEELCHAIR"`. Any rider entering the station who is `"USING_WHEELCHAIR"` is also a rider who `"BOARD"`s. Using a wheelchair to board is not specifically affected. | [optional] |