Slope...what is safe?? Anyone here ever roll over?

[buckeyefarmer]

The reason the highway says 6% grade, next 5 miles is because the angle changes over the next 5 miles, might even be flat in a place or 2, but overall it's dropping a lot.

 

[k0ua]

The reason the highway says 6% grade, next 5 miles is because the angle changes over the next 5 miles, might even be flat in a place or 2, but overall it's dropping a lot.

That's a good point.

 

[goeduck]

Straight up vertical should be 100 and flat horizontal should be 0, that would make sense. But what would the sign say if it changed over the next 5 miles? . Oops, talk about thread drift...

 

[MossRoad]

Straight up vertical should be 100 and flat horizontal should be 0, that would make sense. But what would the sign say if it changed over the next 5 miles? . Oops, talk about thread drift...

That would make 400 degrees in a circle. I think there should be 1000 degrees in a circle, and that would make the math so much easier.

 

[bcp]

Straight up vertical should be 100 and flat horizontal should be 0, that would make sense.

That would make 400 degrees in a circle. I think there should be 1000 degrees in a circle, and that would make the math so much easier.

Metric degrees!

Bruce

 

[CobyRupert]

I vote on using degrees. It’s silly to talk about a roof that slopes at 110%.
I rather say “rise over run” or “rise to run” and use a fraction than undefined percentages.

 

[Jstpssng]

I vote on using degrees. It’s silly to talk about a roof that slopes at 110%.
I rather say “rise over run” or “rise to run” and use a fraction than undefined percentages.

That makes sense on roofs, but we're talking about hills.

 

[Egon]

Different nomenclature for different items. Usually the nomenclature is very descriptive and easy to use for what you are doing.

For a multiple of ten graduations in a circle with tenths for subdivisions! 15* 25' 53" gets to be a pain when using logarithm's to twelve point accuracy.

 

[buckeyefarmer]

Straight up vertical should be 100 and flat horizontal should be 0, that would make sense. But what would the sign say if it changed over the next 5 miles? . Oops, talk about thread drift...

Thread drift is a slippery slope...

 

[RickB]

http://nasdonline.org/static_content/documents/7319/d002523.pdf

Good info courtesy of Egon. And I’m not wading through 11 pages.