Both in response to this thread and ther the other on bugging-out, here are some other questions to pre-answer:

1. What will you bug out for? Hurricane, firestorm, chemical release...

2. When will you bug-out? This applies mostly to hurricane situations where you can see them coming for many days in advance. 48 hours or less from forcast landfall will put you in gridlock. 72 hours before will get you heavy traffic.

If you're planning to bug-out with an RV, be aware of this: I live 150+ miles from the Mississippi gulf coast, The center of Katrina passed about 40 miles to our east and we had hurricane force winds sustained for several hours with higher gusts. Areas to our east and more than 100 miles north along Katrina's path expirenced sustained winds of over 100 MPH. So, if you're using an RV, plan on going to a location outside of the forcast track variability.