Most of these places will most likely overran by the time you make your way through the door. The best choice in my own opinion is to flee any city areas, and anywhere that is inhabit by the living lol...
Zombies will not be the only thing we will have to handle. It's the people who are rushing to survive. So not only do you wanna get away from Zombies, you would need move yourself from society as much as possible.
Obviously you will need some sort of barrier to keep the outside from coming inside, but if you're away from things, you have better choice in defense, since you will know the land better.