The US has a blend of public and private infrastructure. Cities like Chicago sold the rights to their parking to private companies. Red light and speeding cameras are also privatized. Some states have sold their turnpike system to non public entities. Busses are unreliable in most metro areas because bus systems don't turn a profit.
Amtrak, America's only passenger train system, operates nearly entirely on private tracks. Its nearly always as expensive or more for a train ticket than it would be to just fly. At that the system is unreliable with trains constantly having to wait hours for freight trains to pass because they have the right of way on private tracks.
Nearly all utilities (power, water, gas) are ran by for profit companies. Americas "social safety net" reads like a punishment most of the time. Seniors living on social security eat cat food to get by. Politicians want work requirements on food assistance. Homelessness is at epidemic levels, in a more liberal area there are some depression era hoovervilles built. Conservative areas just buy bus tickets to the liberal areas.