The Orville Dam evacuation (a disaster) stoked my research. You could see mile after mile of vehicles stuck in traffic (probably including pick up trucks/motorcycles/offroad vehicles that members of this forum favor). You also observed that a lot of people drive around on empty and the gas stations were overwhelmed. Perhaps if you had a bicycle (and been riding consistently for years a dozen miles a day), it might work for you (and assuming that the water is coming at less than 50 mph.) 40 years ago when I knew Ron Hood, he showed us how he would take a motorcycle on railroad tracks to his hide outside Los Angeles. He had to have assumed that no one else was using the tracks and that people swarming around would not interfere with a straight run on the tracks. I already knew about ultralights and had flown in a 2 seater. I think that you can get them for under $10k with a built in parachute. All you need is a straight street or an elementary school playground for take off or landing. So that would handle either a fat member of the forum or a skinny one with a friend or a couple hundred pounds of gear. Today, I investigated a paramotor. You can google the concept. If you don't want to bother, here is what the specs are. Spend under $9k and get a one man unit that will fly an overweight guy for 2-3 hours. Today, I watched a youtube video wherein the kid went to 15,000 feet altitude (and probably without telling the FAA). The takeoff and landing space needed is about 100 feet (with you running). I f the motor conks out, you already have a deployed parachute above you.