“I agree, bugging out via road is probably going to be worse that “bugging in” when you hit all the roadblocks, ambushes etc.”
The issue is that many folks of a survivalist mindset think that there will be some honor code amongst the “prepared”, when clever folks (possibly more clever than themselves) who have thought through their own self-interest and may cutoff access to the best supplied bug-out locations to more than just the starving masses pillaging the countryside.
Every decision made in times like these will have consequences. But one best not underestimate the level of depravity that is possible in people during times of duress.
Have you read FerFals “Urban Survival Guide?” It’s by far the best resource on the subject.
I agree with him that a cohesive subdivision is more defensible than spread out multi-acre or larger parcels. One family CANNOT defend one property in the open country from patient attack or sneak attack. The bad guys will also have scoped deer rifles.