Hit and miss. Good for North America, horrible compared to Europe. Where these are located, it's a bit of a train desert, but the bus system is pretty good. There are three lines within short walking distance, and they go to pretty good destinations, and trains.
But on the other end, there's still street parking, and it's plentiful. I'd say Portland is a good 1-car city, if you're a family. Lot's of stuff is one bus away, but you definitely get into situations where some appointment is 1:30 away by bus, 20 minutes by car, so it's nice to have options. If I was a bachelor, I'd be fine with no car, and using a bike or cab when needed.
