since the 1970s, the number of cars per person in the USA has increased by ~50%, the number of people has increased by ~60%, and, vehicle miles traveled per capita had (previous to 2020) nearly doubled.
https://www.energy.gov/eere/vehicles/fact-962-january-30-201...
https://fred.stlouisfed.org/graph/?g=lls
since the 1970s, the number of cars per person in the USA has increased by ~50%, the number of people has increased by ~60%, and, vehicle miles traveled per capita had (previous to 2020) nearly doubled.
https://www.energy.gov/eere/vehicles/fact-962-january-30-201...
https://fred.stlouisfed.org/graph/?g=lls