I've lived in a lot of cities and the one constant I hear, is the drivers all suck "over there/from here/from there etc.". In general, the bigger the cities, the more the traffic and complaints about the other drivers. I wouldn't categorize Portland any worse than any other city of a similar size, and I certainly wouldnt' use it as a criteria for choosing wether to live here or not. Kinda like travelling - You get all the stories about all the bad people in the next town/state/country that will surely rob you or rip you off, but when you get there, you find they are just like the last town and say the same thing about where you just came from. But I would consider your commute when it comes time to choose your place to live. Just as I wouldn't commute from Oakland to San Jose, I wouldn't want to commute from Vacouver to Portland daily.