Frequency-based services¶
Frequency-based services can be used to model services that operate on a regular frequency, such as buses running every 10 minutes or subway services operating 2 minutes within specified time intervals.
When modeling a Frequency-based service, stop_times.txt contains the relative times between stops in order to determine the times to be displayed to riders.
Pre-requirement:
| Files included | Fields included |
|---|---|
| frequencies.txt | trip_id, start_time, end_time, headway_secs, exact_times |
Sample Data
The following sample shows two distinct trips: trip AWE1 that runs every 30 min (headway_secs=1800), and trip AWE2 that runs every 15min (headway_secs=900).
The 'exact times' field indicates whether the schedule follows the precise start time entered in the 'start_time' field: Trip AWE1 departs every 30min from 6:10am to 12:00pm, trip AW2 departs at 6:00am, 6:15am, 6:30am, and so on.
| trip_id | start_time | end_time | headway_secs | exact_times |
|---|---|---|---|---|
| AWE1 | 6:10:00 | 12:00:00 | 1800 | 0 |
| AWE2 | 6:00:00 | 19:50:00 | 900 | 1 |