An RV or trailer have excellent potential for preparedness -- depending on the situation and the RV/trailer, of course.

We camp a lot and have been surprised at the decent gas mileage some of the smaller RVs (Class C - around 20') owners report getting, especially the diesels. Carry extra fuel and for evacuation some of the Class C's make more sense than some SUVs or pickup trucks.

RV kitchens and bathroom facilities are backups when home utilities are disrupted.

In earthquake country, an RV would be a very nice alternative to a damaged home.

One of the best aspects of an RV is having the vehicle permanently packed. Even my little "teardrop" trailer would be a tremendous asset in an emergency if I had to leave here. It's always packed with clothes, camping and hiking gear.

Thanks for the link, kd.