Cal-ITP

Monthly GTFS Quality Report
Commerce Municipal Bus Lines  ·  December 2021

This is a monthly report, generated by the California Integrated Travel Project (Cal-ITP), summarizing issues discovered by MobilityData’s GTFS Validator. This report is available for viewing by the general public to support continuous improvement of GTFS data and the experience of transit passengers.


Current GTFS Feed Info

12-31-2029
Feed End Date
2
Days With No Service
10
Routes
224
Stops

About the December Daily Service Level Charts

  • These charts show the total hours of transit service described by the active feed for each day.
  • Since service levels often vary by the day of the week, it is split into three charts for weekdays, Saturdays, and Sundays.
  • Flat lines indicate consistent levels of service throughout the month.
  • Short drops may indicate temporary reduced service, such as for holidays, gaps in feed publishing, or potential inaccuracies.
  • Please reach out to our help desk at [email protected] with any questions.

Service hours per weekday in the active feed

Service hours per Saturday in the active feed

Service hours per Sunday in the active feed


About the December Identifier Change Charts

  • These charts show the percentage of stop and route IDs that have changed since the previous month.
  • Stop and route IDs are important identifiers for GTFS feed consumers to correctly parse feeds.
  • It is a GTFS Best Practice to keep these consistent between feed versions whenever possible.
  • More than 5% being new or dropped is a cause for attention, especially if there hasn't been a major service or route change.
  • Please reach out to our help desk at [email protected] with any questions.

Changes from December 01 to December 31


Consistency with the California GTFS Minimum Guidelines

Do the following files/fields exist? 2021-12-05 2021-12-19
Visual display shapes.txt
Navigation levels.txt
pathways.txt
Fares fare_leg_rules.txt
fare_rules.txt
Technical contacts feed_info.txt
Validation errors observed
Error Name Error Description Severity
decreasing_or_equal_stop_time_distance Two consecutive stop times in a trip should have increasing distance. If the values are equal, this is considered as an error. ERROR
empty_file Empty csv file found in the archive: file does not have any headers, or is a required file and does not have any data. The GTFS specification requires the first line of each file to contain field names and required files must have data. ERROR
feed_expiration_date At any time, the published GTFS dataset should be valid for at least the next 7 days, and ideally for as long as the operator is confident that the schedule will continue to be operated. If possible, the GTFS dataset should cover at least the next 30 days of service. WARNING
route_short_and_long_name_equal Short and long name should not be identical. WARNING
same_name_and_description_for_route The GTFS spec requires that a route_description is distinct from both the route short and long names. ERROR