I would not say that is not completely true. Your state Department of transportation is probably the biggest spender anmong other state agencies. The healthcare Leviathan is only thing that could be bigger. I think it’s important to keep in mind that the surface transportation network in the United States is massive. We also have roads serving mere handfuls of predominantly agricultural users (still critical to food supply).

Building roads is expensive, and they don’t last forever. A good asphalt surface may be service worthy for 20 years. A ton of asphalt outside of California may cost in the ballpark of $150 to install. A 2 inch lift of asphalt will cover not quite 10 sqyd. So you can see how expensive this gets when we’re talking about thousands of miles.

I think it’s worth considering how policies may destroy much of the demand for roadways. Personally, I could imagine a future wear personal private transportation is basically unlawful or artificially expensive.