Zoltan Finks wrote: > I just ran across this little sheet of info that came with my auto > registration. I wonder if it's true. Seems to be designed to support the > magic 55 mph limit. If it's true, it is very interesting.
The math looks about right. You could subsititute other speeds with pretty much the same results -- they just picked 55 because it's a common speed limit, no doubt. Of course, they don't figure any longer trips. If you drive 70 instead of 55 on a 500 mile trip, you save nearly two hours. These are AVERAGE speeds, though. A lot of people don't seem to realize that the key to getting a long distance quickly is to avoid stops, where you're doing 0 mph. I can think of many examples of long interstate trips where I've passed the same semi four or five times over the space of a couple of days, because while he was doing 60 mph to my 75, I was stopping much more often.
