Originally Posted by GraphiteGhost
Cannot figure out why they are not standardized... The two second rule works at any speed, same as following too closely. If you follow someone at a minimum two second interval, you'll stop safely (given your not distracted, of course)...
I took drivers ed in high school just a few years ago. They are actually teaching 3 seconds instead of 2 now. I guess they added on an extra second so you could look up from the cell phone and still be 2 seconds away.
Not that anyone pays any attention to that rule.