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.
-
10% slope warning sign, Netherlands
-
25% slope sign, Wales
-
A 1371-metre long stretch of railroad with a 20‰ (2%) slope, Czech Republic
-
Slope warning sign, 30% over 1500 m. La route des Crêtes, Cassis, France
-
7% descent warning sign, Finland
Read more about this topic: Grade (slope)
Famous quotes containing the word roads:
“We joined long wagon trains moving south; we met hundreds of wagons going north; the roads east and west were crawling lines of families traveling under canvas, looking for work, for another foothold somewhere on the land.... The country was ruined, the whole world was ruined; nothing like this had ever happened before. There was no hope, but everyone felt the courage of despair.”
—Rose Wilder Lane (1886–1968)
“All roads are blocked to a philosophy which reduces everything to the word “no.” To “no” there is only one answer and that is “yes.” Nihilism has no substance. There is no such thing as nothingness, and zero does not exist. Everything is something. Nothing is nothing. Man lives more by affirmation than by bread.”
—Victor Hugo (1802–1885)
“This, my first [bicycle] had an intrinsic beauty. And it opened for me an era of all but flying, which roads emptily crossing the airy, gold-gorsy Common enhanced. Nothing since has equalled that birdlike freedom.”
—Elizabeth Bowen (1899–1973)