From The One Hour Meltdown:
1.Your family is trapped inside your vehicle in a traffic jam that is grid-locked and, although you don’t know it yet, the cars in front of you and behind you are not going to move one-inch for the next several years.
Exactly why our #1 plan is to bug in. I-75 would clog up ina matter of minutes. Shoot, even when there’s a simple accident it jams up bad for an hour or more. I can’t imagine what it would look like with many thousands of people all trying to get to TN or OH.