Owner
Description
Quality monitoring product for GTFS Realtime data (vehicle positions, trip updates, service alerts) across California transit agencies. Ensures the recording of a historically accurate representation of performed transit operations.
Warehouse layer: Quality (sits alongside data) Lifecycle stage: Operate
⚠ Note: The original spec contains several sections that appear to be copy-pasted from the GTFS Schedule Data Quality spec (references to “Schedule” where “Realtime” is expected). These have been noted. Realtime-specific SLA and contract details need independent definition.
Intake
(TBD: formal intake process not yet defined.)
Contract
GTFS Realtime Data Quality is critical towards ensuring the recording of a historically accurate representation of performed transit operations in California.
(TBD: The following commitments appear to be Schedule-specific copy. Realtime-specific commitments need to be defined independently.)
- SOPs are maintained and up-to-date
- SOP automation documentation is maintained and up-to-date
Consumers
Downstream products:
- Reports website
- gtfs-digest-reports-website
Dependencies
- california-transit-database — source of truth for which agencies/feeds exist
- gtfs-rt-parser — produces the parsed and validated RT data this monitoring is built on
- gtfs-rt-archiver — upstream pipeline that captures the raw realtime data
- gtfs-schedule-data-quality — baseline schedule data that realtime refers to
SLA
(TBD: The original spec lists the same weekly checks as Schedule Data Quality. This needs to be replaced with realtime-specific checks, such as:)
- (TBD) Vehicle position feed completeness and latency
- (TBD) Trip update accuracy against observed operations
- (TBD) Service alert coverage and timeliness
Quality
(TBD: Realtime-specific quality tests not yet defined.)
Operations
(TBD: runbook, incident log, and alert routing not yet defined.)
Lifecycle
So long as detailed data about transit operations is desired, GTFS Realtime Data Quality checking will occur. Last reviewed: (TBD)