Examples

The following sections provide examples of how ODS can represent specific use cases. The inclusion of these examples should not be as an indication that this is the only way to represent these use cases with ODS. If you have questions about a use case not represented here, please feel free to create an issue in GitHub.

Single Run with Pull-Out and Lunch Break

In this example, a bus driver is assigned to run 10000, which has four revenue trips on two pieces, all on the same block. The run also includes a pull-out, a pull-back, a pre-trip inspection, and a lunch break between the two pieces.

GTFS Files

These are the same files that would be published in the agency’s public GTFS file, and contains only revenue trips and public information.

Some irrelevant files are ommitted for brevity.

stops.txt

stop_id,location_type
stop-1,0
stop-2,0
stop-3,0

routes.txt

route_id,route_short_name,route_type
12,12,3

trips.txt

route_id,service_id,trip_id,trip_headsign,direction_id,block_id
12,daily,101,North,0,BLOCK-A
12,daily,102,South,1,BLOCK-A
12,daily,103,North,0,BLOCK-A
12,daily,104,South,1,BLOCK-A

stop_times.txt

trip_id,arrival_time,stop_id,stop_sequence
101,10:00,stop-1,1
101,10:25,stop-2,2
101,10:50,stop-3,3
102,11:00,stop-3,1
102,11:25,stop-2,2
102,11:50,stop-1,3
103,13:00,stop-1,1
103,13:25,stop-2,2
103,13:50,stop-3,3
104,14:00,stop-3,1
104,14:25,stop-2,2
104,14:50,stop-1,3

TODS Files

These are the new files that are published in TODS. In this example, the TODS files do not delete or modify any rows that were published in GTFS.

stops_supplement.txt

stop_id,location_type,TODS_location_type
garage,0,garage
garage-waypoint,0,

routes_supplement.txt

route_id,route_long_name
deadheads,Deadheads

In this example, the agency puts all of its deadheads on this new route, though agencies may have other ways to assign deadheads to routes.

trips_supplement.txt

route_id,service_id,trip_id,block_id,TODS_trip_type
deadheads,daily,deadhead-1,BLOCK-A,pull-out
deadheads,daily,deadhead-2,BLOCK-A,pull-back

In this example, consumers know that these trips aren’t in revenue service because of the route_id and TODS_trip_type.

stop_times_supplement.txt

trip_id,arrival_time,stop_id,stop_sequence
deadhead-1,09:45:00,garage,1
deadhead-1,09:50:00,garage-waypoint,2
deadhead-1,09:55:00,stop-1,3
deadhead-2,14:50:00,stop-1,1
deadhead-2,14:55:00,garage-waypoint,2
deadhead-2,15:00:00,garage,3

run_events.txt

service_id,run_id,event_sequence,piece_id,block_id,job_type,event_type,trip_id,start_location,start_time,start_mid_trip,end_location,end_time,end_mid_trip
daily,10000,10,       ,       ,Operator,Report Time,        ,garage,09:30:00,,garage,09:30:00,
daily,10000,20,       ,       ,Operator,Pre-Trip Inspection,,garage,09:35:00,,garage,09:45:00,
daily,10000,30,10000-1,BLOCK-A,Operator,Pull-Out,deadhead-1 ,garage,09:45:00,2,stop-1,09:55:00,2
daily,10000,40,10000-1,BLOCK-A,Operator,Operator,101        ,stop-1,10:00:00,2,stop-3,10:50:00,2
daily,10000,50,10000-1,BLOCK-A,Operator,Operator,102        ,stop-3,11:00:00,2,stop-1,11:50:00,2
daily,10000,60,       ,       ,Operator,Break,              ,stop-1,11:50:00,,stop-1,13:00:00,
daily,10000,70,10000-2,BLOCK-A,Operator,Operator,103        ,stop-1,13:00:00,2,stop-3,13:50:00,2
daily,10000,80,10000-2,BLOCK-A,Operator,Operator,104        ,stop-3,14:00:00,2,stop-1,14:50:00,2
daily,10000,90,10000-2,BLOCK-A,Operator,Pull-Back,deadhead-2,stop-1,14:50:00,2,garage,15:00:00,2

Multiple Runs on a Single Block with Mid-Trip Relief

In this example, the bus driver assigned to run 10000 pulls out a bus, does trip 101 and part of trip 102, and then ends their day at stop-2. A new driver on run 20000 boards the bus, completes trip 102, then does trip 103 and trip 104, and pulls back to the garage.

This example uses the exact same GTFS files as the previous example. Deadheads and nonrevenue locations are omitted in order to focus on the revenue trip assignments, so no _supplement.txt files are needed for this example. Only run_events.txt needs to change to reflect the multiple runs and mid-trip relief.

run_events.txt

service_id,run_id,event_sequence,piece_id,block_id,job_type,event_type,trip_id,start_location,start_time,start_mid_trip,end_location,end_time,end_mid_trip
daily,10000,10,10000-1,BLOCK-A,Operator,Operator,101,stop-1,10:00:00,2,stop-3,10:50:00,2
daily,10000,20,10000-1,BLOCK-A,Operator,Operator,102,stop-3,11:00:00,2,stop-2,11:25:00,1
daily,20000,10,20000-1,BLOCK-A,Operator,Operator,102,stop-2,11:25:00,1,stop-1,11:50:00,2
daily,20000,20,20000-1,BLOCK-A,Operator,Operator,103,stop-1,13:00:00,2,stop-3,13:50:00,2
daily,20000,30,20000-1,BLOCK-A,Operator,Operator,104,stop-3,14:00:00,2,stop-1,14:50:00,2

Multiple operators on the same trip

In this example (unrelated to the previous examples), a two-car train does a round trip, and requires two operators, one in the first car and one in the second car. The event_type field distinguishes whether an operator is in the front car or the rear car. The operators swap for the return trip.

run_events.txt

service_id,run_id,event_sequence,job_type,event_type,trip_id,start_location,start_time,end_location,end_time
weekday,10000,10,Operator,Operate 1st Car,trip-1,stop-1,10:00:00,stop-2,10:58:00
weekday,10000,20,Operator,Operate 2nd Car,trip-2,stop-2,11:00:00,stop-1,11:58:00
weekday,20000,10,Operator,Operate 2nd Car,trip-1,stop-1,10:00:00,stop-2,10:58:00
weekday,20000,20,Operator,Operate 1st Car,trip-2,stop-2,11:00:00,stop-1,11:58:00

Run as Directed work

In this example (unrelated to the previous examples), an operator signs in for their shift, pulls out, and then operates a bus for several hours. They are not scheduled to do specific trips, but instead do trips as directed to by dispatch. This approach could apply in several situations:

• An agency uses frequencies.txt (frequencies.trip_id may be able to be referenced in run_events.trip_id).
• An agency publishes specific times in GTFS trips.txt, but in practice operates the service according to a headway, or doesn’t schedule operators to specific trips.
• The operator is assigned to cover or strategic work, and is positioned somewhere where they can cover absences or gaps in service on any route throughout the day.

run_events.txt

service_id,run_id,event_sequence,block_id,event_type,trip_id,start_location,start_time,end_location,end_time
weekday,10000,10,       ,sign-in        ,,garage,08:45:00,garage,08:50:00
weekday,10000,20,BLOCK-A,deadhead       ,,garage,08:50:00,stop-1,09:00:00
weekday,10000,30,BLOCK-A,run-as-directed,,stop-1,09:00:00,stop-1,12:00:00
weekday,10000,30,BLOCK-A,deadhead       ,,stop-1,12:00:00,garage,12:10:00