I am confused when I see highway sign indicating the slope of the roadway... 6 or3 or5 percent grade for example. Would a 0 percent grade be a plane and a 90 percent grade be vertical?Thanks.
2007-10-09 15:55:22 · 3 answers · asked by luther 4 in Cars & Transportation ➔ Safety
No.
6 percent grade equals a 6 unit rise over a 100 unit horizontal distance
3 percent grade equals a 3 unit rise over a 100 unit horizontal distance
5 percent grade equals a 5 unit rise over a 100 unit horizontal distance
100 percent grade equals a 45 degree angle.
Vertical is an infinite grade.
This will explain it better
2007-10-09 20:05:14 · answer #1 · answered by 80sGuy 5 · 1⤊ 0⤋
6% Grade simply means that for every 100 feet traveled the elevation drops 6 feet.
2007-10-10 01:31:39 · answer #2 · answered by Anonymous · 0⤊ 0⤋
You are correct. The number is the degree of the slope that the road takes.
good luck.
2007-10-09 16:02:18 · answer #3 · answered by Fordman 7 · 1⤊ 1⤋