Definition
Time from a new signal (GPS ping, driver event, facility update) to an observable ETA/status change in the system.
Technical Details
Unit
minutes
Implementation Notes
Reporting: median and P90.
Related Terms
ETA (Estimated Time of Arrival)
The predicted arrival time for a stop based on current position, route, traffic, dwell history, and constraints.
ETA accuracy
Share of arrivals that occur within a defined window of the last published ETA.
Ping freshness
Time since last valid location update while the vehicle is moving.
Part of the Fleet Super Operator Standard (FSOP) v1.0 •Editorial Policy