payment_
(Existing)
Payment of some kind (e.g., toll, parking, fare) by traveler which, in most cases, can be related to a credit account.
request for payment
(Existing)
Request to deduct cost of service from user's payment account.
tag data
(Existing)
Unique tag ID and related vehicle information.
tag update
(Existing)
Update data held in tag which can be read by another roadside device (Commercial Vehicle Check Subsystem, Toll Collection Subsystem, etc.).