Roads
In vehicular engineering, various land-based designs (cars, SUVs, trucks, trains, etc.) are rated for their ability to ascend terrain. (Trains typically rate much lower than cars.) The highest grade a vehicle can ascend while maintaining a particular speed is sometimes termed that vehicle's "gradeability" (or, less often, "grade ability"). The lateral slopes of a highway geometry are sometimes called fills or cuts where these techniques have been used to create them.
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10% slope warning sign, Netherlands
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25% slope sign, Wales
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A 1371-metre long stretch of railroad with a 20‰ (2%) slope, Czech Republic
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Slope warning sign, 30% over 1500 m. La route des Crêtes, Cassis, France
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7% descent warning sign, Finland
Read more about this topic: Grade (slope)
Famous quotes containing the word roads:
“... deeper
and deeper into Imagination’s
holy forest, as travelers
followed the Zohar’s dusty
shimmering roads ...”
—Denise Levertov (b. 1923)
“Two roads diverged in a yellow wood,
And sorry I could not travel both
And be one traveler, long I stood
And looked down one as far as I could”
—Robert Frost (1874–1963)
“They’re busy making bigger roads,
and better roads and more,
so that people can discover
even faster than before
that everything is everywhere alike.”
—Piet Hein (b. 1905)