### agency.txt Example 1

Source: https://github.com/google/transit/blob/master/gtfs/spec/en/examples/README.md

Shows a basic agency entry with all standard fields.

```csv
agency_id,agency_name,agency_url,agency_timezone,agency_phone,agency_lang
FunBus,The Fun Bus,https://www.thefunbus.org,America/Los_Angeles,(310) 555-0222,en
```

--------------------------------

### Producer Example: Duplicating Trip with Matching ADDED and DUPLICATED trip_ids

Source: https://github.com/google/transit/blob/master/gtfs-realtime/spec/en/examples/migration-duplicated.md

This example demonstrates the first option for producers to link ADDED and DUPLICATED trip entities. The trip_id of both entities must be the same.

```protobuf
entity {
  id: "ei0"
  trip_update {
    trip: {
      trip_id: "1" // <-- trip_id from static GTFS to copy
      schedule_relationship: ADDED
      start_date: "20200821" // <-- New trip date
      start_time: "11:30:00" // <-- New trip time
    }
    stop_time_update {
	...
    }
  }
}

entity {
  id: "ei10"
  trip_update {
    trip: {
      trip_id: "1" // <-- trip_id from static GTFS to copy
      schedule_relationship: DUPLICATED
    }
    trip_properties {
      trip_id: "NewTripId987" // <-- New trip_id unique to this trip
      start_date: "20200821"  // <-- New trip date
      start_time: "11:30:00"  // <-- New trip time
    }
    stop_time_update {
	...
    }
  }
}
```

--------------------------------

### Example trip_headsign and direction_id Usage

Source: https://github.com/google/transit/blob/master/gtfs/spec/en/reference.md

This example demonstrates how trip_headsign and direction_id fields can be used together to assign a name to travel in each direction for a set of trips. This is useful for time tables.

```text
trip_id,...,trip_headsign,direction_id
1234,...,Airport,0
1505,...,Downtown,1
```

--------------------------------

### Producer Example: Duplicating Trip with Matching ADDED trip_id and DUPLICATED trip_properties.trip_id

Source: https://github.com/google/transit/blob/master/gtfs-realtime/spec/en/examples/migration-duplicated.md

This example demonstrates the second option for producers to link ADDED and DUPLICATED trip entities. The trip_id of the ADDED trip must match the trip_properties.trip_id of the DUPLICATED trip.

```protobuf
entity {
  id: "ei0"
  trip_update {
    trip: {
      trip_id: "NewTripId987" // <-- New trip_id unique to this trip
      schedule_relationship: ADDED
      start_date: "20200821" // <-- New trip date
      start_time: "11:30:00" // <-- New trip time
    }
    stop_time_update {
	...
    }
  }
}

entity {
  id: "ei10"
  trip_update {
    trip: {
      trip_id: "1" // <-- trip_id from static GTFS to copy
      schedule_relationship: DUPLICATED
    }
    trip_properties {
      trip_id: "NewTripId987" // <-- Matches the ADDED trip.trip_id
      start_date: "20200821"  // <-- New trip date
      start_time: "11:30:00"  // <-- New trip time
    }
    stop_time_update {
	...
    }
  }
}
```

--------------------------------

### calendar_dates.txt Example

Source: https://github.com/google/transit/blob/master/gtfs/spec/en/examples/README.md

Specifies exceptions to regular service schedules, such as holidays or special event days. This example shows holiday service adjustments.

```csv
service_id,date,exception_type
WD,20060703,2
WE,20060703,1
WD,20060704,2
WE,20060704,1
```

--------------------------------

### stop_times.txt Example

Source: https://github.com/google/transit/blob/master/gtfs/spec/en/examples/README.md

Details the timing and sequence of stops for specific trips, including pickup and drop-off types.

```csv
trip_id,arrival_time,departure_time,stop_id,stop_sequence,pickup_type,drop_off_type
AWE1,0:06:10,0:06:10,S1,1,0,0
AWE1,,,S2,2,1,3
AWE1,0:06:20,0:06:30,S3,3,0,0
AWE1,,,S5,4,0,0
AWE1,0:06:45,0:06:45,S6,5,0,0
AWD1,0:06:10,0:06:10,S1,1,0,0
AWD1,,,S2,2,0,0
AWD1,0:06:20,0:06:20,S3,3,0,0
AWD1,,,S4,4,0,0
AWD1,,,S5,5,0,0
AWD1,0:06:45,0:06:45,S6,6,0,0
```

--------------------------------

### Modeling Loop Route Stops in stop_times.txt

Source: https://github.com/google/transit/blob/master/gtfs/best-practices/best-practices.md

When modeling a loop route in `stop_times.txt`, include the first/last stop twice to represent the complete circuit. This example shows a trip that returns to its starting stop.

```text
trip_id | stop_id | stop_sequence
9000 | 101 | 1
9000 | 102 | 2
9000 | 103 | 3
9000 | 101 | 4
```

--------------------------------

### agency.txt Example 2

Source: https://github.com/google/transit/blob/master/gtfs/spec/en/examples/README.md

Illustrates an agency entry with a missing optional field (agency_phone).

```csv
agency_id,agency_name,agency_url,agency_timezone,agency_lang
agency001,Transit Agency,https://www.transitcommuterbus.com/,PST,en
[...]
```

--------------------------------

### pathways.txt Example

Source: https://github.com/google/transit/blob/master/gtfs/spec/en/examples/README.md

Describes pathways between stops, such as stairs, elevators, or escalators, including mode and directionality.

```csv
pathway_id,from_stop_id,to_stop_id,pathway_mode,is_bidirectional
E1N1,E1,N1,2,1
E2N1,E2,N1,2,1
E3N1,E3,N1,2,1
N1-N2,N1,N2,6,1
N2-N1,N2,N1,7,1
N2N3,N2,N3,2,1
N2-B1,N2,B1,4,0
B1-N2,B1,N2,4,0
B1B2,B1,B2,2,1

B1B3,B1,B3,1,1
B2B4,B2,B4,1,1

E4N3,E4,N3,2,1
E5N3,E5,N3,2,1
N3-N4,N3,N4,6,1
N4-N3,N4,N3,7,1
N4B3,N4,B3,2,1
N4-B3,N4,B3,4,0
B3-N4,B3,N4,4,0
B3B4,B3,B4,2,1
```

--------------------------------

### transfers.txt Example

Source: https://github.com/google/transit/blob/master/gtfs/spec/en/examples/README.md

Defines rules for transfers between stops, including transfer type and minimum transfer time.

```csv
from_stop_id,to_stop_id,transfer_type,min_transfer_time
S6,S7,2,300
S7,S6,3,
S23,S7,1,
```

--------------------------------

### attributions.txt Example

Source: https://github.com/google/transit/blob/master/gtfs/spec/en/examples/README.md

Specifies attributions for data producers or operators, linking them to specific agencies.

```csv
attribution_id,is_producer,is_operator,organization_name,agency_id
attribution001,1,0,Transit Feed Solutions USA,agency001
attribution002,0,1,Transit Bus Operations USA ,agency001
[...]
```

--------------------------------

### routes.txt Example

Source: https://github.com/google/transit/blob/master/gtfs/spec/en/examples/README.md

Defines a transit route, including its short and long names, a description, and the route type.

```csv
route_id,route_short_name,route_long_name,route_desc,route_type
A,17,Mission,"The ""A"" route travels from lower Mission to Downtown.",3
```

--------------------------------

### levels.txt Example

Source: https://github.com/google/transit/blob/master/gtfs/spec/en/examples/README.md

Defines different levels within a station, such as street level, mezzanine, or specific platforms, with their index and elevation.

```csv
level_id,level_index,level_name,elevation
L0,0,Street,0
L1,-1,Mezzanine,-6
L2,-2,Southbound,-18
L3,-3,Northbound,-24
```

--------------------------------

### calendar.txt Example

Source: https://github.com/google/transit/blob/master/gtfs/spec/en/examples/README.md

Defines regular weekly service schedules, specifying which days of the week a service is active and the date range for its validity.

```csv
service_id,monday,tuesday,wednesday,thursday,friday,saturday,sunday,start_date,end_date
WE,0,0,0,0,0,1,1,20060701,20060731
WD,1,1,1,1,1,0,0,20060701,20060731
```

--------------------------------

### fare_rules.txt Example

Source: https://github.com/google/transit/blob/master/gtfs/spec/en/examples/README.md

Associates fares with specific routes, origin/destination stops, or containing stops.

```csv
fare_id,route_id,origin_id,destination_id,contains_id
a,TSW,1,1,
a,TSE,1,1,
a,GRT,1,1,
a,GRJ,1,1,
a,SVJ,1,1,
a,JSV,1,1,
a,GRT,2,4,
a,GRJ,4,2,
b,GRT,3,3,
c,GRT,,,6
```

--------------------------------

### frequencies.txt Example

Source: https://github.com/google/transit/blob/master/gtfs/spec/en/examples/README.md

Specifies headways (time intervals) between trips on a route during specific time periods.

```csv
trip_id,start_time,end_time,headway_secs
AWE1,05:30:00,06:30:00,300
AWE1,06:30:00,20:30:00,180
AWE1,20:30:00,28:00:00,420
```

--------------------------------

### trips.txt Example

Source: https://github.com/google/transit/blob/master/gtfs/spec/en/examples/README.md

Shows trip information, linking routes to specific service schedules and assigning unique trip IDs and block IDs.

```csv
route_id,service_id,trip_id,trip_headsign,block_id
A,WE,AWE1,Downtown,1
A,WE,AWE2,Downtown,2
```

--------------------------------

### shapes.txt Example

Source: https://github.com/google/transit/blob/master/gtfs/spec/en/examples/README.md

Defines the geographic path for a route, specifying points along the shape with sequence and distance.

```csv
shape_id,shape_pt_lat,shape_pt_lon,shape_pt_sequence,shape_dist_traveled
A_shp,37.61956,-122.48161,1,0
A_shp,37.64430,-122.41070,2,6.8310
A_shp,37.65863,-122.30839,3,15.8765
```