Subscription perhaps. That's basically what we do now, except I cannot unsubscribe from roads while buying a subscription to trains. (I can buy a subscription to trains (monthly pass), though my mandatory subscription to everything else partially subsidizes my train subscription too...). And I can certainly lose my subscription to roads (lose my "license"), although I still have to pay for it.
Bear in mind I'm not necessarily suggesting the privatization of roads. I just don't like roads being done by the same organization (or a sub-organization) as the one that does bombs and hospitals.
Some things make some sense to combine, such as "traffic policing" and "roads". Traffic police are after all the way you make sure people without a subscription to roads don't use the service. For the most part however, the various services a modern government is said to be required for have very little to do with each other.
Bear in mind I'm not necessarily suggesting the privatization of roads. I just don't like roads being done by the same organization (or a sub-organization) as the one that does bombs and hospitals.
Some things make some sense to combine, such as "traffic policing" and "roads". Traffic police are after all the way you make sure people without a subscription to roads don't use the service. For the most part however, the various services a modern government is said to be required for have very little to do with each other.