@Ray-me-- It's not jus' the tundra, but really any place that has flat ground and one can c for miles around. This is so that one can actually c the zombies long 'fore they would c u and allow one ta have enough time ta evacuate the area inna reasonable fashion.
I actually had a discussion of this hypothetical situation wit my dad, who was trained by the military in survival and is a survival expert, and some of these suggestions r actually his. Imagine the look on his face when I asked him for tips on this subject. Yet, he did come up wit some very good suggestions on how ta survive this hypothetical scenario.