# description
A real-time representation of a vehicle journey being actively tracked, including position and schedule adherence data.

# properties.vehicleLocation.description
Current geographic position of the vehicle

# properties.delay.description
Delay in seconds relative to schedule (negative = early)

# properties.occupancy.description
Current passenger occupancy of the vehicle

# properties.serviceCalendarRef.description
Calendar defining when this journey operates

# properties.stopTimes.description
Scheduled stop times for each stop on this journey