Talk:Grade (slope)
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[edit] Order of bullet points
The second and third bullet points need to be reversed, for the comment (about "the last two") in the following paragraph to make sense. It would also match them up with the table on the right. In fact, I'm going to make that change right now - if anyone has objections, change it back.
Qseep 05:24, 7 December 2006 (UTC)
[edit] This doesn't explain much
After reading the article I still found myself wondering how grades are calculated. The table would suggest a 9% grade is merely 5°, but I was on a 9% road today and it must have been at least 30°. The linked page [1] offers a much clearer answer, that the grade is simply 100*(rise/run). Perhaps this is not a common standard but it is certainly used in Northern Alberta and BC. :-)
Though, I still don't understand why percentages are used at all. :-/ 142.59.173.240 05:29, 4 April 2007 (UTC)
I too came away from this article with little greater understanding of grades/slopes/inclines/ramps/hills etc. Please rework it for concise clarity.
[edit] Czech railway sign
Surely the "20" on the sign cannot represent a 20% grade. The "Railways" section of the article on railway list four of the steepest grades for a non-rack railroads as ranging between 1 in 40 (2.5%) and 1 in 18 (5.5%). The Czech railroad (which looks pretty flat in the photo) would be 3.5 to 8 times steeper than that if the sign really means 20%.
