What is Grade (slope)?
:''For other uses see:'' [[Gradient (disambiguation)]] [[File:UK traffic sign 524.1.svg|thumb|Road sign indicating a 20% upward gradient]] The '''grade''' (or gradient) of a [[road]] or [[Railway track|railway line]] is a measure of its steepness. It may be expressed as a percentage or in other ways. For example, a gradient of 1% may also be expressed as 1 in 100. This means that the road rises or falls by 1 metre for every 100 metres of forward travel. [[File:Across the Taw from the South West Coast Path - geograph.org.uk - 1331209.jpg|thumb|left|Railway gradient post showing a change from level track to a downward gradient of 1 in 1026]] [[Category:Physical geography]]