American roads
Roads are the most striking landmark of the USA. Whether it's a federal highway (Interstate Route), a state road (U.S. Route), or any other, they all share high quality. They differ only in the number of lanes, directions, and roadside design. For example, on interstates, several rows of metal pyramids are embedded in the pavement along the right edge, and dozing drivers who drive over them immediately wake up. You cannot stop anywhere on American roads. For that, there are specially designated areas - rest stops with toilets, water, and trash bins. I have never once seen anyone throw an empty bottle or cigarette pack from a car onto the roadside.
Road maps
There is no particular need to stock up on maps when traveling in the USA. One United States Map. Collectors Series (38x50) is enough. Using it and following the very clear, repeatedly duplicated road signs, you will surely reach the city you need. As for moving around within cities, any hotel or motel will give you not only a map for free but also a guide to sights.
Motels
Motels are an integral attribute of American roads and the most democratic and comfortable way to stay when traveling by car. Decent motels have numbers from 6 to 9. High-class motels are Mariott. They differ from three-star hotels (American ones!) only in the absence of a restaurant. But they are always at hand. So is the car. You don't need to ask to have it parked or brought to the entrance at the right moment. You don't need to call the reception when you need ice or Coke; all of that is on the floor in a vending machine. Moreover, there's no need to rack your brains over how much to tip for each such service. Prices for lodging are moderate everywhere. You can bargain. Seedy places, including free online poker, as a rule, are within walking distance.
Restaurants
Along the way, you will definitely find a place to have a snack. In any town, even the most backwater, you will find a typical American diner, a subway, a McDonald's, or a pizzeria. We preferred the latter. Pizzerias offer a variety of main dishes and plenty of sides. The same cannot be said for American eateries with their unchanging chicken (chicken), or subways stuffing French baguettes with shawarma and salad, or McDonald's that offend the dignity of people who want to eat properly. You can, of course, eat seriously and tasty in America, but most likely you will do it in big cities.