I find the bike option rather appealing in an emergency. Ideally, if I had to leave, I would start out with a vehicle containing supplies, including bike. If necessary,I could abandon the vehicle and continue via pedaling.
The appeal of the bicycle lies in its small size, the ability to be carried for short distances, and its general low profile. Properly equipped, it can carry a surprising load (remember Vietnam?).
I ride a touring bike (Surly Long Haul Trucker) with racks and 32 mm Vittoria touring tires. I have ridden 37mm tires and they are more versatile, able to deal with mild off pavement environments fairly well. I can count on 35 to 85 miles per day consistently,maybe up to 100 miles in a real push.
If necessary, you dump the bike, put out your thumb, and start walking.
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Geezer in Chief