Those costs go to things like maintaining roads and infrastructure.

这些费用用于维护道路和基础设施。

For example, the Department of Transportation will probably tell you how many miles of road they maintain.

比如，交通部可能会告诉你他们维修了多少英里的路。

As building and maintaining roads requires huge amounts of money, there is the argument over who should pay for it.

由于修建和维护道路需要大量资金，因此对于谁应该支付费用存在争议。