The state of Texas’ main priority when it comes to the “improvement” of their roadways is the privatization of them.
Toll operated roads have been around since the 7th century. This began when the ‘leader’ of a tribe decided that all travelers who pass on foot, wagon, or horseback must pay him a fee (toll) for the use of certain roads. Today, most toll roads globally, are state enterprise (partially or fully owned by the government). This means that either the state “rents” the road to private enterprise and they collect fees on behalf of the state, the state operates and collects fees on their own, or construction and operation of newly built toll roads are delegated to private enterprise in return for shares (a portion of the profits) until their contract runs out.
In a situation where private enterprise is involved, investors are granted the right to raise and collect toll prices to whatever amount they like - this can lead to billions of dollars in profits for private investors.