I don’t know if research exists for this, but I wonder how much of the influence of people moving from rural or suburban areas in the USA to urban areas in the USA contributes to additional cars in US cities.
I grew up in a suburban area, and even though I live in a dense city now, having a car still seems mandatory to me somewhere deep in my brain, even though I know I could now get by with the occasional zipcar.
Suburban areas typically require a car since public transportation is nonexistent, and growing up in an environment for 20 years sure can condition someone’s preferences.
I wonder how many people truly like driving? And where’s the line lie between “I am willing to drive” and “I am willing to not drive” ?