Data coaching

On this page we will introduce you to the most important steps you may want to take to enrich your GTFS data set for publishing.

Please contact us for more data related aspects.

Part 1
How to add notes to services?

You can associate an index and a comment to any service by adding the file calendarExt.txt to your GTFS folder.

Sample calendarExt.txt

service_id,index,comment

"Fr mS / 2025-09-08","♦","Friday, during school period"

You can define day types by using the day_typesExt.txt file.

You can then associate a service to a day type by referencing it via the calendar_assignmentsExt.txt file

Sample day_typesExt.txt

day_type_id,name,sequence_number,monday,tuesday,wednesday,thursday,friday,saturday,sunday

"1","Mon-Fri",1,,,,,,,

Sample calendar_assignmentsExt.txt

day_type_id,service_id

"1","Mo-Fr mS 2025-09-08"

You can associate a comment to any pattern (shape) by adding the file shapesExt.txt to your GTFS folder.

Sample shapesExt.txt

shape_id,sequence_number,priority_number,note,direction_description,via_text

7,2,2,From Cherry Blossom Lane to Cottonwood Lane,Cranbrook,Westwood

You can associate a comment to any trip by adding the file tripsExt.txt to your GTFS folder.

Sample tripsExt.txt

trip_id,note

"Mo-Fr_3_100_0529","Continues as line Linie 4 to 6712"

You can associate a comment to any trip by adding the file stop_timesExt.txt to your GTFS folder.

Sample stop_timesExt.txt

trip_id,stop_id,stop_sequence,billboard_importance,billboard_alignment_id,route_stop_sequence,index,note

"Mo-Fr_1_101_0529","750701",2,2,,2,"ø","Contact Driver to stop"

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