what would the degree of angle be for a 10% road gradient? would 5% be half the degrees? would 25% be 2.5x as much?
2007-09-01 14:33:20 · 9 answers · asked by moe 1 in Science & Mathematics ➔ Engineering
A 6% grade would be a 6 foot vertical rise in 100 horizontal feet of road.
In other words if you draw a 100 inch long horizontal line, then at one end of the line you draw a vertical line 6 inches long, and then draw a line joining the top of the 6 inch high line to the opposite end of the 100 inch line you would have a 6% grade, or slope on the line that you drew.
A 12% grade would be twice the angle of a 6% grade.
A 18% grade would be three tmes the angle of a 6% grade.
The trig function of the angle is the Tangent = 6"/100" = 0.06.
and the angle would be approximatey 3 1/2 degrees.
or 12"/100" = 0.12 and the angle would be approximately 7 degrees.
2007-09-01 19:03:45 · answer #1 · answered by gatorbait 7 · 1⤊ 2⤋
Road Grade
2016-12-08 16:09:08 · answer #2 · answered by guarnieri 4 · 0⤊ 0⤋
5
2015-03-26 13:19:12 · answer #3 · answered by Jim 1 · 0⤊ 0⤋
This Site Might Help You.
RE:
what is road grade % to angle degree?
what would the degree of angle be for a 10% road gradient? would 5% be half the degrees? would 25% be 2.5x as much?
2015-08-07 00:22:54 · answer #4 · answered by Anonymous · 0⤊ 0⤋
Percent Grade
2016-10-04 11:14:55 · answer #5 · answered by ? 4 · 0⤊ 0⤋
If I am understanding your question correctly, given a road grade percentage P, to get the angle associated with it, just take arctan(P/100) ... In general, half the road grade percent is not -exactly- half the angle, but it is close for small values of P.
2007-09-01 14:37:51 · answer #6 · answered by Anonymous · 1⤊ 0⤋
Here is a web page about road grades that explains the grade percent concept. They say that for small angles, less then 15%, the percent and the angle are roughly equal.
Kenyai's formula is correct
http://en.wikipedia.org/wiki/Grade_%28slope%29
2007-09-01 14:46:39 · answer #7 · answered by Mugwump 7 · 0⤊ 0⤋
30 degrees
2016-03-18 06:48:23 · answer #8 · answered by Anonymous · 0⤊ 0⤋
Road grade is in terms of length of rise(or drop) per length of horizontal distance. Thus it is like the slope in mathmatics. Degrees are determined from trigometric functions, such as the tangent, which would be the same definition. Except for degree values close to zero, the tangent is a non-linear function.
2007-09-01 14:41:46 · answer #9 · answered by cattbarf 7 · 0⤊ 3⤋
--->> Tips---> https://trimurl.im/f4/what-is-road-grade-to-angle-degree
2015-08-04 18:57:52 · answer #10 · answered by Anonymous · 0⤊ 0⤋