If you had the pleasure to live in Massachusetts to experience all this, we had three really large storms within about two weeks of one another in Jan/Feb (can't remember the exact dates). The result of this? 6 foot snow banks everywhere. Mall parking lots were much worse since they'd pile snow in ~30-foot tall mountains. That made it extremely hard to see around corners driving.
Highly anecdotical, but I noticed that many drivers became less aggressive. Roadways were clear, but not being able to easily see around corners resulted in less people cutting me off. This lasted for about a month before things melted a bit, and drivers quickly re-earned their title as Massholes. ;)