TLDR: SUVs cause traffic jams.
Actual study (full article): The rise of trucks and the fall of throughput by Yang Gao & David Levinson
TLDR: SUVs cause traffic jams.
Actual study (full article): The rise of trucks and the fall of throughput by Yang Gao & David Levinson
If you progressively make cars smaller and smaller, people will move to mass transit faster since it would be way more comfortable than cramming into a Hot Wheels car.