Spiral (railway) - Roads

Roads

Roads sometimes use a spiral to gain height in a confined space, cf. pigtail bridge.

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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)

    Pioneers lay the roads for those who follow to walk on.
    Chinese proverb.

    ... deeper
    and deeper into Imagination’s
    holy forest, as travelers
    followed the Zohar’s dusty
    shimmering roads ...
    Denise Levertov (b. 1923)