diff --git a/gtfs/spec/en/reference.md b/gtfs/spec/en/reference.md index 055335586..578afdf39 100644 --- a/gtfs/spec/en/reference.md +++ b/gtfs/spec/en/reference.md @@ -196,8 +196,8 @@ File: **Required** | Field Name | Type | Required | Description | | ------ | ------ | ------ | ------ | | `trip_id` | ID referencing `trips.trip_id` | **Required** | Identifies a trip. | -| `arrival_time` | Time | **Conditionally required** | Arrival time at a specific stop for a specific trip on a route. If there are not separate times for arrival and departure at a stop, enter the same value for `arrival_time` and `departure_time`. For times occurring after midnight on the service day, enter the time as a value greater than 24:00:00 in HH:MM:SS local time for the day on which the trip schedule begins.

Scheduled stops where the vehicle strictly adheres to the specified arrival and departure times are timepoints. If this stop is not a timepoint, use leave `arrival_time` empty or provide an interpolated time. Further, indicate that interpolated times are provided with `timepoint`=`0`. If interpolated times are indicated with `timepoint`=`0`, then time points must be indicated with `timepoint`=`1`. Provide arrival times for all stops that are time points. An arrival time must be specified for the first and the last stop in a trip. | -| `departure_time` | Time | **Conditionally required** | Departure time from a specific stop for a specific trip on a route. For times occurring after midnight on the service day, enter the time as a value greater than 24:00:00 in HH:MM:SS local time for the day on which the trip schedule begins. If there are not separate times for arrival and departure at a stop, enter the same value for `arrival_time` and `departure_time`. See the `arrival_time` description for more details about using timepoints correctly. | +| `arrival_time` | Time | **Conditionally required** | Arrival time at a specific stop for a specific trip on a route. If there are not separate times for arrival and departure at a stop, enter the same value for `arrival_time` and `departure_time`. For times occurring after midnight on the service day, enter the time as a value greater than 24:00:00 in HH:MM:SS local time for the day on which the trip schedule begins.

Scheduled stops where the vehicle strictly adheres to the specified arrival and departure times are timepoints. If this stop is not a timepoint, it is recommended to provide an estimated or interpolated time. If this is not available, arrival_time can be left empty. Further, indicate that interpolated times are provided with `timepoint`=`0`. If interpolated times are indicated with `timepoint`=`0`, then time points must be indicated with `timepoint`=`1`. Provide arrival times for all stops that are time points. An arrival time must be specified for the first and the last stop in a trip.| +| `departure_time` | Time | **Conditionally required** | Departure time from a specific stop for a specific trip on a route. For times occurring after midnight on the service day, enter the time as a value greater than 24:00:00 in HH:MM:SS local time for the day on which the trip schedule begins. If there are not separate times for arrival and departure at a stop, enter the same value for `arrival_time` and `departure_time`. See the `arrival_time` description for more details about using timepoints correctly.

The `departure_time` field should specify time values whenever possible, including non-binding estimated or interpolated times between timepoints. | | `stop_id` | ID referencing `stops.stop_id` | **Required** | Identifies the serviced stop. All stops serviced during a trip must have a record in [stop_times.txt](#stop_timestxt). Referenced locations must be stops, not stations or station entrances. A stop may be serviced multiple times in the same trip, and multiple trips and routes may service the same stop. | | `stop_sequence` | Non-negative integer | **Required** | Order of stops for a particular trip. The values must increase along the trip but do not need to be consecutive.
*Example: The first location on the trip could have a `stop_sequence`=`1`, the second location on the trip could have a `stop_sequence`=`23`, the third location could have a `stop_sequence`=`40`, and so on.* | | `stop_headsign` | Text | Optional | Text that appears on signage identifying the trip's destination to riders. This field overrides the default `trips.trip_headsign` when the headsign changes between stops. If the headsign is displayed for an entire trip, use `trips.trip_headsign` instead. |