I beg to differ. I was rear ended by a Kamikaze motorcycle messenger while riding my recumbent down Hwy 246 in Setagaya-ku in Tokyo about 12 years ago. Traffic was, as ususal, very heavy, and I was in my proper place near the curb on the left side of the road. As the traffic slowed for a stop light or some other reason, the messenger quickly pulled from behind the cars right into me.
I hit the ground so hard I cracked my helmet. My right arm and leg were numb and unresponsive for a few minutes. The biker helped me get out of the road, then moved my bike, then tried to walk me around a little. When the feeling/movement eventually returned to my arm and leg, the main sensation I felt was pain. Once I was sort of able to stand, he got back on his bike and left. I was still dazed and sat down for a few minutes to try to remember where I was going. Eventually I figured it out and got to work.
I went into the toilet to inspect the damage and found one of my cuff buttons has cut a gash about 4" long into my arm, and I had road rash on my left hip, knee, and shoulder, and a few holes in my jacket. I was escorted to the local hospital by a coworker whereupon the doctor pronounced me fine. He had a nurse bandage my road rash and sent me home to take it easy for a day or two. No head x-rays.
Three things came out of that experience- 1) I decided that the medical care in Japan was unacceptable for a long-term stay. 2) I bought what was then a fairly new concept mountain bike so I would be higher in the air where cars and motorcycles could see me. 3) I added a strobe flasher to the recumbent to make it more visible when I rode it.
Think for a minute, especially in these days of big, freakin' SUVs, about how visible a recumbent is going to be. It is obvious that the lower position puts one at a disadvantage relative to a higher, "normal" bicycle. Flags, flashers, etc. can be used to draw attention to the bike so that it is a lot safer.
How about the myth that recumbents are faster than "normal" bikes? A lot of people seem to think so, and under the right conditions they can be, but in general, I don't think so. I think the myth came from the speed record type machines that have fairings. Very few recumbent rider use full fairings. Recumbents tend to be slow going up hills since you can't stand up to pedal and use your upper body to help. They are definitely more comfortable, which can, on a very long ride, make a difference in overall average speed, but for most rides I'd say they are a little slower or maybe about even with "normal" bikes.
TD