The Protobuf object to read from
The end position of the message in the buffer
OptionalidInternal system identification of the vehicle. Should be unique per vehicle, and can be used for tracking the vehicle as it proceeds through the system.
OptionallabelUser visible label, i.e., something that must be shown to the passenger to help identify the correct vehicle.
OptionallicenseThe license plate of the vehicle.
Wheelchair accessibility of the trip
Identification information for the vehicle performing the trip.